Relevant bibliographies by topics / Insulating materials

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Insulating materials'

Author: Grafiati
Published: 4 June 2021
Last updated: 29 July 2024

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Journal articles on the topic "Insulating materials"

1

Xia, Rong. "Characteristic Analysis and Measurement of Dielectric Loss in Non-Linear Insulating Materials." Advanced Materials Research 986-987 (July 2014): 1471–76. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1471.

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Non-linear insulating material is widely used in the insulations of XLPE cable terminations and stator windings insulation of electric machines, and has obvious capability to improve the distribution of electric field. Actually, the dielectric loss factor of non-linear insulating materials is not equal to the tanδ describing linear insulating materials, and depends on applied voltage and their structures. This paper firstly discusses the difference between ac loss characteristic of non-linear dielectrics and linear dielectrics and presents a kind model of non-linear composite material. Based on the model, specific characterization and measurement methods and their numeric simulation analysis are given. Finally, a measuring system for non-linear insulating materials based on digital measuring technology is presented.
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Klinklow, Nattida, Sethayuth Padungkul, Supoj Kanthong, Somjate Patcharaphun, and Ratchatee Techapiesancharoenkij. "Development of a Kraft Paper Box Lined with Thermal-Insulating Materials by Utilizing Natural Wastes." Key Engineering Materials 545 (March 2013): 82–88. http://dx.doi.org/10.4028/www.scientific.net/kem.545.82.

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This research studied the feasibility of using natural fibers extracted from natural wastes as a thermal-insulating material lined in a Kraft paper box packaging. The natural fibers were extracted from natural waste of rice straws using NaOH solutions. The extracted fibers were then formed as a porous thermal-insulating pad by a spray lay-up method using natural rubbers as binders. The thermal conductivities, specific heat capacities and temperature-rise time of the natural fiber insulation and other thermal-insulating materials including polystyrene foam, a polyethylene foam, and a glass fiber insulation were studied and compared. The glass fiber insulation showed the highest thermal conductivity, while the thermal conductivities of the other studied insulating materials were found to be similar. Moreover, the polymeric and natural-fiber insulations show better temperature-rise resistance than the glass fiber insulation. The temperature rises for different insulating materials were estimated using the analytical analysis of heat transfer. The calculated temperature-rise times were compared with the empirical results; both results are in the same order of magnitude. Consequently, a Kraft paper box lined with natural-fiber pads was constructed and compared with a Kraft paper box (without insulation lining) and a polystyrene box of equal sizes. The boxes were packed with an equal amount of ice and left under room temperature for 24 hours. The results show that, after 24 hours, the temperatures inside the natural-fiber lined box and the polystyrene box were contained below 15 °C, while the temperature inside the Kraft paper box increase to room temperature only after 16 hours. The observation shows that a natural fiber pad can potentially be used as an alternative insulating material in packaging industries, which can enhance environmental-friendly packaging products.
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Shah, Sagarkumar, Vinay Bhatt, Jinesh Shah, Manojkumar Sheladiya, and Pratik Kikani. "Study of Thermal Insulating Materials And Costing of Economic Thickness of Insulation." Indian Journal of Applied Research 3, no. 8 (October 1, 2011): 77–80. http://dx.doi.org/10.15373/2249555x/aug2013/79.

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Chen, Lingqi, and Yufan Wang. "Thermal insulations under concepts of green building in China." Applied and Computational Engineering 9, no. 1 (September 25, 2023): 67–74. http://dx.doi.org/10.54254/2755-2721/9/20230044.

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In order to protect the environment in present-day society, green buildings are seen as an effective and logical solution. Insulating materials are frequently widely used in green buildings to reduce their energy dissipation. China, as a global power, is at the forefront of ecological development. This paper will focus on the study of thermal insulations in the context of green concepts, a specific analysis of their properties and examples of their application in China. It is found that most of the green developments lack economic support and therefore, insulation materials need to be developed in the direction of low cost and high efficiency and effectively reduce their harmful effects on the environment. Furthermore, the development of insulation materials in China should pay attention to geographical differences, i.e. the insulation materials that can be applied in different regions in the North and South are different. This study will facilitate the application of insulating materials in China's ecological development, reducing related energy losses and protecting the surrounding environment.
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Malelis, P., and M. Danikas. "Insulating Materials at Very Low Temperatures: A Short Review." Engineering, Technology & Applied Science Research 10, no. 3 (June 7, 2020): 5590–95. http://dx.doi.org/10.48084/etasr.3410.

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In this paper, a short review is given on insulating materials at very low temperatures. Various insulating materials are investigated in terms of phenomena such as partial discharges. Some of the factors affecting the behavior of the insulating materials at very low temperatures, such as the quality of electrode surface, the stressed insulation volume and the existing bubbles, are also reported and commented upon. Proposals for future research are also discussed.
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Rafiq, Muhammad, Muhammad Shafique, Anam Azam, Muhammad Ateeq, Israr Ahmad Khan, and Abid Hussain. "Sustainable, Renewable and Environmental-Friendly Insulation Systems for High Voltages Applications." Molecules 25, no. 17 (August 27, 2020): 3901. http://dx.doi.org/10.3390/molecules25173901.

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With the inception of high voltage (HV), requisites on the insulating permanence of HV equipment is becoming increasingly crucial. Mineral/synthetic oil liquid insulation—together with solid insulation materials (paper, pressboard)—is the fundamental insulation constituent in HV apparatuses; their insulation attributes perform a substantial part in a reliable and steady performance. Meanwhile, implications on the environment, scarcity of petroleum oil supplies and discarding complications with waste oil have stimulated investigators to steer their attention towards sustainable, renewable, biodegradable and environmentally friendly insulating substances. The contemporary insulating constituent’s evolution is driven by numerous dynamics—in particular, environmental obligations and other security and economic issues. Consequently, HV equipment manufacturers must address novel specifications concerning to these new standards. Renewable, sustainable and environmentally friendly insulating materials are continuously substituting conventional insulating items in the market place. These are favorable to traditional insulating materials, due to their superior functionality. The also offer explicit security and eco-friendly advantages. This article discusses cutting-edge technology of environmentally friendly insulating materials, including their fabrication, processing and characterization. The new renewable, insulating systems used in HV equipment are submitted and their fundamental gains stated in comparison with conventional insulating materials. Several experimental efforts carried out in various parts of the world are presented, offering an outline of the existing research conducted on renewable insulating systems. The significance of this article lies in summarizing prior investigations, classifying research essence, inducements and predicting forthcoming research trends. Furthermore, opportunities and constraints being experienced in the field of exploration are evidently reported. Last but not least, imminent research proposals and applications are recommended.
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Voznyak, Orest, Yuriy Yurkevych, Iryna Sukholova, Oleksandr Dovbush, and Mariana Kasynets. "Thermally conductive cost of the heat-insulating materials." Theory and Building Practice 2020, no. 2 (November 20, 2020): 92–98. http://dx.doi.org/10.23939/jtbp2020.02.092.

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The article presents the results of theoretical research to achieve the maximum effect in determination of the economically feasible level of buildings thermal protection. It must be optimal both thermally and economically, an indicator of which there are the costs. Graphical and analytical dependences are given. The research results substantiate the maximum effect when different thermal insulating materials are used. The aim is to increase the efficiency of energy saving measures, reduce their cost by optimizing the cost of thermal energy and insulating materials, determining the optimization criteria and justification for choice the optimal insulating material and its thickness, and determining the optimal thermal resistance, identifying ways to improve energy efficiency and substantiation of the calculation method. One of the most common thermal renovation measures, namely insulation of external walls, is considered. An economic assessment has been conducted, which is an important factor in a certain energy-saving proposition. The solution of the problem is presented, which includes two stages. The result of the first stage is the selection of the optimal heat-insulating material. The second stage is a substantiation of economically expedient thickness of the heatinsulating material. The obtained results make it possible to increase the efficiency of energy saving in thermal renovation of buildings taking into account both energy and economic aspects. In this paper the results of mathematical provement of such factor importance as the thermally conductive cost of the heat-insulating material at their thickness optimization are presented. Determining for the establishment of the normative thermal resistance in the future is the ratio of the cost of thermal energy to the thermal conductivity of the insulating material.
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Zhang, Ji Hong, and Da Wei An. "Study on Application of Insulating Materials in Electrical (Electronic) Equipment." Advanced Materials Research 834-836 (October 2013): 133–37. http://dx.doi.org/10.4028/www.scientific.net/amr.834-836.133.

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Various types of insulating materials in electrical equipment is not only widely used, but also play a crucial role to enhance the insulation of electrical equipment performance and to improve the quality of electrical equipment. Different devices require different types of electrical insulating materials reliability,and in order to improve the safety factor of electrical equipment, it is necessary to strengthen the study on reliability of electrical insulating materials.
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Yu, Xing, Liu Lei, Cao Chang, Fan Weidong, Yan Keju, and Cheng Zhongfu. "A Review of Research Status and Prospect of Vacuum Insulated Tubing Insulation System." E3S Web of Conferences 155 (2020): 01007. http://dx.doi.org/10.1051/e3sconf/202015501007.

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Vacuum heat insulating tubing is an important wellbore heat insulating facility for heavy oil thermal recovery at present. Its heat insulating performance directly affects the thermal recovery efficiency. The research on the heat insulating system of vacuum heat insulating tubing is of great significance to improve and improve the heat insulating performance and enhance the thermal recovery of heavy oil. This paper summarizes and analyses the current research status of vacuum insulated tubing insulation system. It elaborates the insulation structure, insulation materials, annular air charging and vacuum pumping, insulation coating and so on. It provides reference and reference for the future research of vacuum insulated tubing.
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Zach, Jiri, Jitka Peterková, Vít Petranek, Jana Kosíková, and Azra Korjenic. "Investigation of Thermal Insulation Materials Based on Easy Renewable Row Materials from Agriculture." Advanced Materials Research 335-336 (September 2011): 1412–17. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.1412.

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Production of building materials is mostly energy consuming. In the sphere of insulation materials we mostly see rock wool based materials or foam-plastic materials whose production process is demanding from material aspect and raw materials aspect as well. At present the demand for thermal insulation materials has been growing globally. The thermal insulation materials form integral part of all constructions in civil engineering. The materials mainly fulfill the thermal insulating functions and also the sound-insulating one. The majority of thermal insulation materials are able to fulfill both of the functions simultaneously. The paper describes questions of thermal insulation materials development with good sound properties based on natural fibres that represent a quickly renewable source of raw materials coming from agriculture. The main advantage of the materials are mainly the local availability and simple renewability of the raw materials. In addition an easy recycling of the materials after their service life end in the building construction and last but not least also the connection of human friendly properties of organic materials with advanced product manufacture qualities of modern insulation materials.
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Dissertations / Theses on the topic "Insulating materials"

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Le, Gros Mark. "NMRON studies of insulating magnetic materials." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/30569.

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Selective excitation pulsed NMRON, CW-NMRON and Thermal NMR methods have been used to study the low temperature ⁵⁴Mn nuclear spin-lattice relaxation mechanisms in magnetic insulators. The selective single and double quantum excitation sequences have been used for the first time in NMRON to obtain single and double quantum rotation patterns, Free Induction Decays, Hahn spin echoes and pulsed T₁ measurements. Two insulating magnets have been studied; MnCl₂.4H₂O and Mn(COOCH₃ )₂ .4H₂O. In the ⁵⁴Mn-MnCl₂ .4H₂O system the temperature dependence of the ⁵⁴Mn spin-lattice relaxation time at zero field was measured between 35 mK and 90 mK and it was found that the dominant relaxation process between 65 mK and 90 mK is an electronic magnon Raman process and below 65 mK a direct relaxation process dominates. Single and double quantum Free Induction Decays and Hahn spin echoes have been used to determine the magnitude and nature of the spin-spin relaxation mechanism for ⁵⁴Mn oriented in MnCl₂.4H₂O at zero applied field. NMRON was observed for the first time in the paramagnetic phase of MnCl₂.4H₂O. The resonance lines are inhomogeneously broadened and 300 kHz wide. A value of <⁵⁴AS>/h=-513.6(3) MHz has been determined for the paramagnetic phase hyperfine coupling constant, and this value has been used to determine the zero point spin deviation of the antiferromagnetic phase. The field and temperature dependence of the ⁵⁴Mn T₁ was measured for values of field above the spin flop paramagnetic phase transition and a field dependent T₁ minimum was discovered at Ba=2.64 T. For the ⁵⁴Mn-Mn(COOCH₃) .4H₂O system two ⁵⁴Mn resonances have been observed and the value of the hyper fine coupling constants for the two sites were found to be <⁵⁴AS>/h=-435 (1) MHz for the ⁵⁴Mn1 site and <⁵⁴AS>/h=-478(1) MHz for the ⁵⁴Mn2 site. The high field spin-lattice relaxation behavior has also been investigated and a T₁ minimum at Ba =2.74 T analogous to that observed in MnCl₂ .4H₂O was discovered. A Hahn echo study of the low field single quantum spin-spin relaxation processes has been performed and anomalous behavior of the spin echo amplitude revealed.
Science, Faculty of
Physics and Astronomy, Department of
Graduate
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Meletse, Thabo Frans. "Development of low cost thermal insulating materials." Master's thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/8724.

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The disadvantaged people in South Africa are unfortunate by virtue of their financial status. It was estimated in 1992 that 20 % of the South African population live in informal settlements. The houses in these settlements are found to be very energy inefficient. This study was aimed at developing low cost thermal insulating materials that can be used to increase energy efficiency of the houses in these informal settlements. This was done by firstly studying the properties of thermal insulation materials. Furthermore, common thermal insulating materials in South Africa were studied and evaluated. Only recycled polymeric based materials were examined for selecting the raw materials that were used to investigate the feasibility of the thermal insulating materials from waste material. The experimental work was extended to construct a thermal conductivity rig that was to be used in measuring the thermal conductivity of both the developed and existing thermal insulating materials. The expanded polystyrene obtained from Sagex (Pty) Ltd and polyester obtained from Isotherm (Pty) Ltd. were evaluated and compared to the manufactured recycled polymer slabs and expanded polyethylene foams (EPEF). Expanded polyethylene foam and recycled polymer slab samples were subjected to mechanical and physical testing. A temperature comparison test and thermal conductivity determination were conducted on both the expanded polyethylene foam (EPEF) and recycled polymer slab (RPS) samples. The scanning electron microscope (SEM) was used to reveal the micro-structures of all the developed thermal insulating material samples. The expanded polystyrene and polyester thermal insulating materials were also examined using the SEM. Optical microscopy was only used on RPS samples. It was found in this research, that the properties that govern the viability of thermal insulating materials are: thermal conductivity (k-value), thermal resistance (R-value), combustibility, moisture absorption and the presence of hazardous gases during burning. The temperature comparison test showed that the recycled polymer slab (RPS) and expanded polyethylene foam (EPEF) retards the flow of heat to levels comparable to that of the locally obtained thermal insulation. The comparative cut bar method was found to be relatively cheap to design and it was ideal for the measurement of the thermal conductivity of polymeric based materials. The k-value of all the EPEF samples was measured to be around 0.04 W.m-¹K-¹ and the RPS k-value was found to be 0.05 W.m-¹K-¹. This is attributed to air pockets with lower conductivities values, found within the structure of the polymeric thermal insulating materials. The porous structure is evident from the SEM micrographs of both the EPEF and RPS samples. One grade of expanded polyethylene foam, the SPX80, had accumulated less moisture when moisture absorption was compared with other EPEF samples. The RPS material did have a propensity for absorption of water. The flammability retardant tests have showed that gypsum board has to be incorporated during service for the RPS and SPX80. The mechanical testing results also suggest that both the EPEF and RPS need to be supported when installed in a ceiling, for example.
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Hoffmann, Ryan Carl. "Electron-Induced Electron Yields of Uncharged Insulating Materials." DigitalCommons@USU, 2010. https://digitalcommons.usu.edu/etd/749.

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Presented here are electron-induced electron yield measurements from high-resistivity, high-yield materials to support a model for the yield of uncharged insulators. These measurements are made using a low-fluence, pulsed electron beam and charge neutralization to minimize charge accumulation. They show charging induced changes in the total yield, as much as 75%, even for incident electron fluences of <3 fC/mm2, when compared to an uncharged yield. The evolution of the yield as charge accumulates in the material is described in terms of electron recapture, based on the extended Chung and Everhart model of the electron emission spectrum and the dual dynamic layer model for internal charge distribution. This model is used to explain charge-induced total yield modification measured in high-yield ceramics, and to provide a method for determining electron yield of uncharged, highly insulating, high-yield materials. A sequence of materials with progressively greater charge susceptibility is presented. This series starts with low-yield Kapton derivative called CP1, then considers a moderate-yield material, Kapton HN, and ends with a high-yield ceramic, polycrystalline aluminum oxide. Applicability of conductivity (both radiation induced conductivity (RIC) and dark current conductivity) to the yield is addressed. Relevance of these results to spacecraft charging is also discussed.
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Suebthawilkul, Somkeat. "Application of hollow spheres in insulating castables." Thesis, Georgia Institute of Technology, 1994. http://hdl.handle.net/1853/19164.

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Zhang, Lei. "Electrical tracking over solid insulating materials for aerospace applications." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/electrical-tracking-over-solid-insulating-materials-for-aerospace-applications(94086fc5-0ca2-4d12-aa6d-97452d3169d1).html.

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The concept of More Electric Aircraft, where is to utilize the electrical power to drive more or all aircraft subsystem instead of conventional combination of pneumatic, hydraulic, mechanical and electrical power, can be recalled to World War II. It has been proven to have more advantages for decades in terms of energy efficiency, environmental issues, logistics and operational maintenance. It can also enhance aircraft weight, volume and battle damage reconfigurability.Thanks to the new electronics technologies and the emergence of new materials, It becomes feasible for high power density electrical power components to drive the majority of aircraft subsystem. However, sustaining the transmission of hundreds of kilowatts of electrical power at low voltages is not feasible owing to the penalties incurred due to high cable weights and voltage drop may become critical. It is very easy to come up with the solution of the increase of voltage. However, higher voltage will introduce other problems such as the reliability of insulation coordination on the aircraft due to the increased probability of electrical discharge. For aircraft designers, it is very important to understand the rules of insulation coordination on the aircraft including determining clearance and creepage distances, and also have a clear investigation of the phenomena and mechanism of electrical discharges. Past research has identified a number of the concerns of operating electrical systems at higher voltages in an aerospace environment, especially for dimensioning of clearances. However, there is little study on dimensioning of creepage distances and relevantly flashover and electrical tracking on solid insulating material surfaces. This thesis firstly discusses the rules for determining clearances and creepage distances. The experimental validation work was done for breakdown in air gap and on the solid insulating material surfaces under dry condition so that some standard recommended values can be evaluated not only with theoretical values such Paschen's law. Suggestions of application of those standards were provided. Secondly, the complex electrical discharge under wet condition on solid insulating material surfaces was discussed. A mathematical model to predict this type of electrical failure -electrical tracking (the electrical discharges on solid insulation materials which will lead to physical damage in the materials) with the consideration of different environmental conditions including air pressure, ambient temperature, and pollution degrees was developed. A series of electrical tracking tests were carried out on organic materials to find out the mechanism of electrical tracking and validate the finding by the mathematic model. Finite element analysis simulations were also conducted to find out the background thermal transfer mechanism to support our explanation of those phenomena of electrical tracking. Different test techniques have ben developed for specific impact factors. Finally, the suggestions for utilization of the standards and feasible test techniques for electrical tracking under wet conditions were provided.
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Sim, Alec. "Unified model of charge transport in insulating polymeric materials." Thesis, Utah State University, 2014. http://pqdtopen.proquest.com/#viewpdf?dispub=3606878.

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Presented here is a detailed study of electron transport in highly disordered insulating materials (HDIM). Since HDIMs do not lend themselves to a lattice construct, the question arises: How can we describe their electron transport behavior in a consistent theoretical framework? In this work, a large group of experiments, theories, and physical models are coalesced into a single formalism to better address this difficult question. We find that a simple set of macroscopic transport equations--cast in a new formalism--provides an excellent framework in which to consider a wide array of experimentally observed behaviors. It is shown that carrier transport in HDIMs is governed by the transport equations that relate the density of localized states (DOS) within the band gap and the occupation of these states through thermal and quantum interactions. The discussion is facilitated by considering a small set of simple DOS models. This microscopic picture gives rise to a clear understanding of the macroscopic carrier transport in HDIMs. We conclude with a discussion of the application of this theoretical formalism to four specific types of experimental measurements employed by the Utah State University space environments effects Materials Physics Group.

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Sim, Alec. "Unified Model of Charge Transport in Insulating Polymeric Materials." DigitalCommons@USU, 2013. https://digitalcommons.usu.edu/etd/2044.

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Charge transport, charging, and subsequent electrostatic discharge due to interactions with the space environment are primary concerns of spacecraft designers. Developing a physical understanding of the interactions of charge with the multitude of materials that spacecraft are composed of is a critical step in understanding and mitigating both short-term and long-term spacecraft degradation. In particular, the study of charge transport in highly insulating materials is critical as they store charge longer, with higher capacity, and with greater destructive capability than other materials.The Utah State University Materials Physics Group, with the funding of the NASA James Webb Space Telescope project and Rocky Mountain Space Consortium, have developed a complete and consistent theoretical model that predicts short-term and long-term storage capabilities based on physical material parameters. This model is applicable across a wide range of experimental systems designed to test specific behaviors that characterize charging phenomena.Modeling and understanding the complex relationships between the spacecraft and its surroundings are fundamentally based on detailed knowledge of how individual materials store and transport charge. The ability to better understand these effects will help make exploring the edges of the universe more stable, reliable, and economic.
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Rux, Lorelynn Mary. "The physical phenomena associated with stator winding insulation condition as detected by the ramped direct high-voltage method." Master's thesis, Mississippi State : Mississippi State University, 2004. http://library.msstate.edu/etd/show.asp?etd=etd-04042004-112949.

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Valentini, Francesco. "Development of insulating materials with thermal energy storage/release capability." Doctoral thesis, Università degli studi di Trento, 2022. https://hdl.handle.net/11572/335644.

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Nowadays the environmental sustainability and the limitation of the energy consumption of buildings is of substantial importance in order to reduce greenhouse gases emissions and mitigate the consequences of climate change. Thermal energy storage (TES) allows to store thermal energy when available in order to use it when and where necessary. The use of insulating materials with TES capability may results in the compensation of energy absorption peaks caused by air conditioning or by space heating with a consequent reduction of energy consumption and related CO2 emissions. This work aims at the development and characterization of composite materials based on polymeric foams and containing a phase change material providing the TES capability. The production procedures were optimized in order to maximize the quality of the samples and the main properties of the resulting materials were then investigated. Different matrices were considered in this work: thermosetting, thermoplastic and elastomeric ones. As thermosetting matrix, a polyurethane foam was considered: this foam was filled, during the production process, with increasing amounts (from 10 to 40 wt%) of a microencapsulated PCM with a melting point of 24 °C. The addition of the PCM caused the disruption of the regular close cell morphology of the foams with a consequent increase of the thermal conductivity and a reduction of the mechanical properties. On the other hand, the addition of the PCM led to interesting TES properties, measured both through differential scanning calorimetry and infrared thermography (up to 54 J/g). Polyethylene was chosen as thermoplastic matrix and the technology of salt leaching was used to obtain foams without the use of chemical foaming agents. Foams containing different amounts (up to 56 wt%) of a microencapsulated PCM with a melting point of 24 °C were prepared. The addition of the PCM led to a decrease of the connectivity and porosity values of the prepared foams with a consequent decrease of the mechanical properties and increase of the thermal conductivity. Despite the rupture of a certain part of the PCM capsules due to the production process, good TES properties (up to 50 J/g) were measured. Elastomeric foams were prepared using an EPDM rubber as matrix and different foaming agents for the expansion process: foams obtained using two different commercial foaming agents were compared with foams obtained using the salt leaching technique. In the first case, a shape-stabilized PCM was added during the production process, while in the second one the foams were impregnated with a liquid PCM without the necessity of a shape stabilization. Salt leaching foams were able to retain higher PCM loads with respect to foams produced using commercial foaming agents and were therefore characterized by higher TES capability (up to 129 J/g). Infrared thermography tests highlighted that the time required to reach a reference temperature during heating/cooling cycles was three times longer for samples with a PCM amount of about 55 wt%. These foams evidenced a general decrease of the mechanical properties upon PCM addition. Moreover, a strong influence of the temperature on the mechanical behaviour of these foams was highlighted, with the PCM acting as softener above its melting point and as hardener below. In order to consider practical applications, elastomeric panels made of an ethylene propylene diene monomer (EPDM) rubber filled with a shape stabilized PCM and covered with a nitrile-butadiene rubber (NBR) envelope were prepared. It was possible to verify the absence of leakage, the uniform distribution of the PCM and the influence of temperature on the mechanical properties of the samples. From rheological tests it was also possible to observe the plasticizing effect of the PCM that hindered the vulcanization process of the EPDM/PCM compound. In the second part of this work larger samples were prepared and used for the internal insulation of wood boxes that were subjected to heating/cooling cycles, simulating thus real summer conditions in north Italy. The beneficial effect of the PCM resulted in a consistent reduction of the temperature peak with respect to a reference box insulated with elastomeric panels without PCM. Moreover, the fire behaviour of the produced samples was studied and the effect of the addition of different flame retardants was deeply investigated. The addition of a flame retardant based on ammonium polyphosphate and aluminium diethyl phosphinate as synergistic agents allowed a strong reduction of the peak of heat release rate measured through cone calorimeter tests, with a significant improvement of the fire behaviour. Fire tests allowed also to point out the significant role, in improving the fire performances of the samples, of the interactions between ammonium polyphosphate and the mineral fillers present in the EPDM/PCM compound (clay) and in the envelope (talc, kaolin and silica). A better comprehension of the combustion mechanisms and of the flame retardant efficacy was achieved through the analysis of the combustion residues. Finally, the specific enthalpy of the different systems was evaluated with respect to the cost of the raw materials used in the production stages in order to classify them on the basis of their melting enthalpy and on the economical aspects.
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Söderström, David. "Expitaxy, analysis and application of semi-insulating III-V materials /." Stockholm, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3096.

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Books on the topic "Insulating materials"

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Bocchi, L. Bituminous heat insulating materials. Luxembourg: Commission of the European Communities, 1986.

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1923-, Powell Frank J., Matthews Stanley L, and ASTM Committee C-16 on Thermal Insulation., eds. Thermal insulation: Materials and systems. Philadelphia, PA: ASTM, 1987.

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Association, Midwest Insulation Contractors. National commercial & industrial insulation standards. 6th ed. Omaha, Neb: Midwest Insulation Contractors Association, 2006.

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Association, Midwest Insulation Contractors, ed. National commercial & industrial insulation standards. 4th ed. Omaha, Neb: Midwest Insulation Contractors Association, 1993.

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Association, Midwest Insulation Contractors, ed. National commercial & industrial insulation standards. 5th ed. Omaha, Neb: Midwest Insulation Contractors Association, 1999.

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Hirschler, MM, ed. Electrical Insulating Materials: International Issues. 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959: ASTM International, 2000. http://dx.doi.org/10.1520/stp1376-eb.

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M, Hirschler M., and ASTM Symposium on Electrical Insulating Materials (1999 : Seattle, Wash.), eds. Electrical insulating materials: International issues. West Conshohocken, PA: ASTM, 2000.

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Hall, James A. Radiant barrier performance testing to assess effects of dust accumulation, attic ventilation, and other key variables. [Chattanooga, Tenn.]: Energy Demonstrations and Technology, Tennessee Valley Authority, 1988.

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C, Wysocki Donald, Graves Ronald S, ASTM Committee C-16 on Thermal Insulation., and ASTM Symposium on Insulation Materials, Testing, and Applications (1991 : Gatlinburg, Tenn.), eds. Insulation materials, testing and applications, 2nd volume. Philadelphia, PA: ASTM, 1991.

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F, Agulló-López, ed. Insulating materials for optoelectronics: New developments. Singapore: World Scientific, 1995.

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Book chapters on the topic "Insulating materials"

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Küchler, Andreas. "Insulating Materials." In High Voltage Engineering, 301–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-642-11993-4_5.

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Dzyazko, Yuliya Sergeevna, and Boris Yakovlevich Konstantinovsky. "Thermal Insulating Materials." In Structural Properties of Porous Materials and Powders Used in Different Fields of Science and Technology, 103–28. London: Springer London, 2014. http://dx.doi.org/10.1007/978-1-4471-6377-0_5.

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Meetham, Geoffrey W., and Marcel H. Van de Voorde. "Refractories and Insulating Materials." In Materials for High Temperature Engineering Applications, 111–14. Berlin, Heidelberg: Springer Berlin Heidelberg, 2000. http://dx.doi.org/10.1007/978-3-642-56938-8_13.

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Smoliy, V. A., E. A. Yatsenko, and A. A. Chumakov. "Foamed Heat-Insulating Materials." In Lecture Notes in Mechanical Engineering, 883–90. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-54817-9_102.

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Ohtani, Y., S. Nishijima, T. Okada, and K. Asano. "Thermal Insulating Support Systems for Radiation Environments." In Materials, 445–51. Boston, MA: Springer US, 1992. http://dx.doi.org/10.1007/978-1-4757-9050-4_56.

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Beroual, Abderrahmane, Christophe Perrier, and Jean-Luc Bessede. "Insulating Oils for Transformers." In Dielectric Materials for Electrical Engineering, 347–78. Hoboken, NJ USA: John Wiley & Sons, Inc., 2013. http://dx.doi.org/10.1002/9781118557419.ch16.

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Kind, Dieter, and Hermann Kärner. "Insulating Materials in High-Voltage Technology." In High-Voltage Insulation Technology, 62–96. Wiesbaden: Vieweg+Teubner Verlag, 1985. http://dx.doi.org/10.1007/978-3-663-14090-0_2.

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Ushakov, Vasily Y. "Insulating Materials and System Design Selection." In Insulation of High-Voltage Equipment, 3–11. Berlin, Heidelberg: Springer Berlin Heidelberg, 2004. http://dx.doi.org/10.1007/978-3-662-07918-8_1.

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Chen, Jiaqi, Yunpeng Qu, Ciqun Xu, Huan Ren, and Yao Liu. "Insulating Technology Control of Soft Magnetic Composites." In Advanced Functional Materials, 25–32. Singapore: Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-13-0110-0_4.

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Steiner, M. "Insulating Magnetic Chains: Ionocovalent Compounds." In Organic and Inorganic Low-Dimensional Crystalline Materials, 63–74. New York, NY: Springer US, 1987. http://dx.doi.org/10.1007/978-1-4899-2091-1_5.

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Conference papers on the topic "Insulating materials"

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Zhou, Zhangbin, Jianying Li, Daomin Min, Guilai Yin, Shengtao Li, and Jiye Mao. "Evaluation of VPI insulating materials and insulation system." In 2009 IEEE 9th International Conference on the Properties and Applications of Dielectric Materials (ICPADM). IEEE, 2009. http://dx.doi.org/10.1109/icpadm.2009.5252503.

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Agullo-Lopez, F. "Insulating Materials For Optoelectronics." In Laser Technologies in Industry. SPIE, 1988. http://dx.doi.org/10.1117/12.968921.

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Kanert, O., and J. M. Spaeth. "Defects in Insulating Materials." In XII International Conference on Defects in Insulating Materials. WORLD SCIENTIFIC, 1993. http://dx.doi.org/10.1142/9789814536134.

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Schmaljohann, F., D. Hagedorn, and F. Löffler. "Systematic evaluation of thin electrically insulating layers on common engineering materials." In 13th International Conference on Plasma Surface Engineering September 10 - 14, 2012, in Garmisch-Partenkirchen, Germany. Linköping University Electronic Press, 2013. http://dx.doi.org/10.3384/wcc2.463-466.

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Thin insulating layers are often required for typical engineering materials, e.g. steel, alumina, titanium and the respective alloys. A very dense insulating layer for subsequent conducting layers acting as electrical paths is crucial. Experiments have shown, however, that the electrical insulation of such substrates is often not sufficient or fails completely and is seldom repeatable. To determine the most important influences regarding the insulation, a systematic evaluation based on a screening design of experiments for the variation of ten parameters is introduced. The films were deposited using a radiofrequency magnetron sputter system and a non-reactive process as well as a SiO2 target for the deposition of the insulation. A thin layer of a Cu-Ni-alloy was successively deposited through a mask on top of the insulating layer. The resistance between the substrate material and the conducting layer was investigated to determine the major influencing parameters with respect to the quality of the insulation layer. Based on the results, further experiments on film thickness variations with less parameters were carried out and Al2O3 layers were compared to those utilizing SiO2.
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Zielinger, Jean P., Mayer Tapiero, Jean G. Gies, and Jean C. Launay. "Characterization Of Insulating Photorefractive Materials." In 1989 Intl Congress on Optical Science and Engineering, edited by Jean-Bernard Grun. SPIE, 1989. http://dx.doi.org/10.1117/12.961419.

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Kitowski, Zach, Andrew Marsh, and Roy Graves. "The Feasibility of Noise Insulating Materials With Variability of Frequencies and Amplitudes." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-11024.

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Abstract The objective of this experimental investigation was to determine the effectiveness of different thermal insulating materials noise reduction properties when exposed to acoustic signals of varying frequencies and amplitudes. The experimental system incorporated two boxes separated by a thermal insulation wall. A speaker was used in one box with varied sound amplitude and frequency to test how effective the insulating material was at reducing sound transmission through a wall. The sound level was measured with a microphone in each box and the values were used to calculate the Sound Transmission Loss (STL) for each trial. Fiberglass insulation and cork insulation were the two insulation materials tested. The frequency levels of500 Hz, 1000 Hz, and 2000 Hz were tested. A three factor ANOVA analysis was completed and the null hypothesis was rejected with 95% confidence for each of the three factors. A Tukey test was conducted to determine which factor, if any, had a significant impact on the STL value. The Tukey test determined that frequency had the most significant impact on the STL value followed by the material choice with the average difference of means for comparison groups being 17.92 dB and 7.74 dB, respectively. The Tukey test also determined sound level did not have a significant impact on the STL value. The fiberglass insulation tested had the highest STL value of the two materials tested, with a maximum STL of 49.5 dB at 2000 Hz while the minimum STL was 26.2 dB at 500 Hz. The cork insulation had a maximum STL of 44.4 dB at 2000 Hz and a minimum STL of 10.5 dB of 500 Hz. At 1000 Hz however, the cork insulation had a higher STL than the fiberglass insulation with 32.6 dB and 31.6 dB respectively. This discrepancy might be due to a specific property of the cork dictating how it interacted within a specific frequency range. The test had an overall uncertainty of ±1.34 STL which was much smaller than the difference between sample groups. The ANOVA analysis also showed a strong interaction between the insulating material and the frequency as it had a much greater F-value of 869.56 as compared with the F-critical value of 2.42.
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Hosier, I. L. "Too insulating or not too insulating? [polyaniline blend]." In Eighth International Conference on Dielectric Materials, Measurements and Applications. IEE, 2000. http://dx.doi.org/10.1049/cp:20000468.

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Sihvo, V., and J. Pyrhonen. "Steam-Resistivity of Wire Insulating Materials." In 2007 IEEE Power Tech. IEEE, 2007. http://dx.doi.org/10.1109/pct.2007.4538288.

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Afia, Ramy S. A., Ehtasham Mustafa, and Zoltan Adam Tamus. "Mechanical Stresses on Polymer Insulating Materials." In 2018 International Conference on Diagnostics in Electrical Engineering (Diagnostika). IEEE, 2018. http://dx.doi.org/10.1109/diagnostika.2018.8526097.

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Nagao, Masayuki. "Electrical breakdown of polymeric insulating materials." In 2015 IEEE 11th International Conference on the Properties and Applications of Dielectric Materials (ICPADM). IEEE, 2015. http://dx.doi.org/10.1109/icpadm.2015.7295200.

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Reports on the topic "Insulating materials"

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MacArthur, D., P. Steadman, J. Bounds, C. Whitley, and M. Rawool-Sullivan. Ion flooding to precharge insulating materials. Office of Scientific and Technical Information (OSTI), October 1996. http://dx.doi.org/10.2172/380354.

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Stephenson, L. D., Andrew Heffron, Brenda B. Mehnert, Jedediah B. Alvey, Veera Boddu, Elizabeth J. Gao, Deborah J. Lawrence, and Ashok Kumar. Prediction of Long Term Degradation of Insulating Materials. Fort Belvoir, VA: Defense Technical Information Center, May 2015. http://dx.doi.org/10.21236/ada618149.

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Natesan, K., J. H. Park, D. L. Rink, and C. A. Thomas. Performance of MHD insulating materials in a potassium environment. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/5845282.

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Natesan, K., J. H. Park, D. L. Rink, and C. A. Thomas. Performance of MHD insulating materials in a potassium environment. Office of Scientific and Technical Information (OSTI), December 1991. http://dx.doi.org/10.2172/10127830.

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Novak, Bruce M. Ultra-Low Density Organic-Inorganic Composite Materials Possessing Thermally Insulating and Acoustic Damping Properties. Fort Belvoir, VA: Defense Technical Information Center, May 1992. http://dx.doi.org/10.21236/ada251182.

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SUGAMA, T. RESTORING A DAMAGED 16-YEAR -OLD INSULATING POLYMER CONCRETE DIKE OVERLAY: REPAIR MATERIALS AND TECHNOLOGIES. Office of Scientific and Technical Information (OSTI), January 2007. http://dx.doi.org/10.2172/909953.

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Hust, Jerome G., and David R. Smith. Interlaboratory comparison of two types of line-source thermal-conductivity apparatus measuring five insulating materials. Gaithersburg, MD: National Institute of Standards and Technology, 1989. http://dx.doi.org/10.6028/nist.ir.89-3908.

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McWilliams, A. J. Materials Assessment of Insulating Foam in the 9977 Shipping Package for Long-Term Storage - Annual Report. Office of Scientific and Technical Information (OSTI), August 2016. http://dx.doi.org/10.2172/1305134.

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Spindel, A. Report on the program of 4 K irradiation of insulating materials for the Superconducting Super Collider. Office of Scientific and Technical Information (OSTI), July 1993. http://dx.doi.org/10.2172/10186764.

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Johra, Hicham. Air permeameter for porous building materials: Aalborg University prototype 2023. Department of the Built Environment, 2023. http://dx.doi.org/10.54337/aau545266824.

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The aim of this lecture note is to present the first prototype of an air permeameter for porous building material built at Aalborg University, Department of the Built Environment. This air permeameter setup is primarily intended for porous insulation materials but could be used for all types of materials fitting the sample frame. This lecture note also provides guidelines to operate this air permeameter and perform a state-of-the-art measurement of the effective air permeability.
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