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Dissertations / Theses on the topic 'Thermal coefficient of resistivity'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Синашенко, Оксана Володимирівна, Оксана Владимировна Синашенко, Oksana Volodymyrivna Synashenko, et al. "The Influence of Electrons Scattering at Grain Boundary and at Surface on Resistivity and Thermal Coefficient of Resistance of Nanocrystalline Silver Films." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/34900.

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The paper describes the method of separation of the share of both surface and grain boundary electron scattering on resistance and thermal coefficient of resistance (TCR). The calculation of ρd, βd and gb, βgb values, which correspond to the surface and grain boundary electron scattering respectively, and their comparative analysis were done based on experimental data of thermal and size dependence of specific resistance (ρ) and TCR (β) for nanocrystalline silver films. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/34900

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2

Однодворець, Лариса Валентинівна, Лариса Валентиновна Однодворец, Larysa Valentynivna Odnodvorets, et al. "Electrophysical, Magnetoresistivity and Magneto-optical Properties of Multilayer Materials Based on Nanocrystalline and Amorphous Films." Thesis, Sumy State University, 2012. http://essuir.sumdu.edu.ua/handle/123456789/35009.

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In work is presented to the results of complex investigate of phase formation, thermal resistivite, magnetoresistive and magneto-optical properties of multilayers based Fe and Pd, Ag or Ge, which obtained by sequential condensation of the layers with following thermal annealing. Investigation of phase formation processes of thin film systems and established of correlation between this processes and above-mention physical properties. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35009

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3

Beltrán, Pitarch Braulio. "Advanced characterization of thermoelectric materials and devices by impedance spectroscopy." Doctoral thesis, Universitat Jaume I, 2020. http://hdl.handle.net/10803/670007.

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Els dispositius termoelèctrics (TEs) poden convertir directament calor en electricitat o usar electricitat per crear una diferència de temperatura, no obstant això, actualment no estan molt estesos a causa de la seua baixa eficiència. El desenvolupament de nous materials més eficients es basa típicament en l'optimització de la figura de mèrit adimensional, que està determinada per tres propietats del material: el coeficient Seebeck (S), la conductivitat elèctrica (σ) i la conductivitat tèrmica (λ), i també la temperatura (T). Per tant, la determinació d'aquestes propietats en funció de la temp

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4

Lei, Man I. "Silicon Carbide High Temperature Thermoelectric Flow Sensor." Case Western Reserve University School of Graduate Studies / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=case1283278445.

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5

Vasudevan, Raghavan. "Thermal diffusion coefficient modeling for high pressure combustion simulations." Connect to this title online, 2007. http://etd.lib.clemson.edu/documents/1202500574/.

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6

Okada, Yoshio 1928. "The thermal expansion coefficient of polypropylene and related composites /." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56778.

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The variability of thermal expansion coefficients during the molding of plastics causes the development of frozen thermal stresses in the molded parts. Also, the distribution of thermal expansion coefficients of the material in the molded part plays an important role in controlling shrinkage and warpage. In turn, the distribution of linear thermal expansion coefficients (LTECs) depends on the distributions of crystallinity and orientation in the part. In the case of fibre reinforced polymers, the distributions of fibre concentration and orientation are also important.<br>In this project, a mod

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7

Kulkarni, Raghav Shrikant. "Characterization of carbon fibers: coefficient of thermal expansion and microstructure." Texas A&M University, 2004. http://hdl.handle.net/1969.1/3073.

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The focus of the research is to develop a consistent and repeatable method to evaluate the coefficient of thermal expansion (CTE) of carbon fibers at high temperatures. Accurate measurement of the CTE of carbon fibers is essential to understand and develop optimal processing procedures as well as computational simulations to predict properties and allowables for fiber-reinforced composites. The mismatch between the coefficient of thermal expansion of the fiber and the matrix has a profound impact on the development of residual stresses and the subsequent damage initiation and progression, pote

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8

Sakyi-bekoe, Kwame Opare Schindler Anton K. "Assessment of the coefficient of thermal expansion of Alabama concrete." Auburn, Ala, 2008. http://hdl.handle.net/10415/1435.

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9

Vieyra, Villegas Hugo Abdiel. "Resistivity and thermal conductivity measurements on heavy-fermion superconductors in rotating magnetic fields." Doctoral thesis, Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2013. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-107550.

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CeCu_2Si_2 was the first heavy-fermion compound showing signatures of bulk superconductivity (T_c = 0.5 K). Further observations have put in evidence the correlations between superconductivity, magnetic order, Kondo physics, and quantum critical phenomena. In spite of the interest generated, a systematic study of such correlations was hampered by strong sample dependences. Fortunately, the inherent complexity associated to the stoichiometric composition has been recently understood. The availability of single-crystals with well-defined properties has thus reignited the interest in CeCu_2Si_2

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10

Šumić, Mersiha. "Thermal Performance of a Solarus CPC-Thermal Collector." Thesis, Högskolan Dalarna, Energi och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:du-14526.

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The aim of this master thesis is an investigation of the thermal performance of a thermal compound parabolic concentrating (CPC) collector from Solarus. The collector consists of two troughs with absorbers which are coated with different types of paint with unknown properties. The lower and upper trough of the collector have been tested individually. In order to accomplish the performance of the two collectors, a thorough literature study in the fields of CPC technology, various test methods, test standards for solar thermal collectors as

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11

Gutierrez, Emmanuel David Mercado. "Thermal expansion coefficient for a trapped Bose gas during phase transition." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/76/76132/tde-27102016-102903/.

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Ultra cold quantum gas is a convenient system to study fundamental questions of modern physics, such as phase transitions and critical phenomena. This master thesis is devoted to experimental investigation of the thermodynamics susceptibilities, such as the isothermal compressibility and the thermal expansion coefficient of a trapped Bose-Einstein condensate (BEC) of 87Rb atoms. The critical phenomena and the critical exponents across the transition can explain the behavior of the isothermal compressibility and the thermal expansion coefficient near the critical temperature TC. By employing th

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12

Hacker, Paul John. "A study of the coefficient of thermal expansion of nuclear graphites." Thesis, University of Bath, 2001. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.341579.

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13

Wu, Wenzhong. "Low Temperature Sintering Semiconductive Barium Strontium Titanate." FIU Digital Commons, 2007. http://digitalcommons.fiu.edu/etd/76.

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Low temperature sintering has become a very important research area in ceramics processing and sintering as a promising process to obtain grain size below 100nm. For electronic ceramics, low temperature sintering is particularly difficult, because not only the required microstructure but also the desired electronic properties should be obtained. In this dissertation, the effect of liquid sintering aids and particle size (micrometer and nanometer) on sintering temperature and Positive Temperature Coefficient Resistivity (PTCR) property are investigated for Ba1-xSrxTiO3 (BST) doped with 0.2-0.3m

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14

Massam, Mark. "Thermal characteristics of grinding fluids." Thesis, Cranfield University, 2008. http://dspace.lib.cranfield.ac.uk/handle/1826/7615.

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High Efficiency Deep Grinding (HEDG) combines high depths of cut, high grinding wheel speeds with high work piece feed rates to deliver a very high stock removal process that can produce components free of surface damage. High contact temperatures are a characteristic of the process and this produces a mass of hot grinding sparks being ejected from the grinding zone. Neat oil cutting fluids are typically used in HEDG due to their excellent lubricity, but the high grinding wheel speeds employed leads to high levels of highly volatile cutting fluid mist in the machine canopy. This mist can mix w

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15

Garrity, Patrick Louis. "Nanoscale Thermal Fluctuation Spectroscopy." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/912.

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The utilization of thermal fluctuations or Johnson/Nyquist noise as a spectroscopic method to determine transport properties in conductors or semiconductors is developed in this paper. The autocorrelation function is obtained from power spectral density measurements thus enabling electronic transport property calculation through the Green-Kubo formalism. This experimental approach is distinct from traditional numerical methods such as molecular dynamics simulations, which have been used to extract the autocorrelation function and directly related physics only. This work reports multi-transport

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16

Rassi, Erik Michael. "An inverse approach to coefficient of thermal expansion optimization in optical structures." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/rassi/RassiE1207.pdf.

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17

Maravola, Michael. "Low Coefficient of Thermal Expansion Composite Tooling Manufactured via Additive Manufacturing Technologies." Youngstown State University / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ysu154704993501967.

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18

Olsson, Martin. "Thermal Shape Factor : The impact of the building shape and thermal properties on the heating energy demand in Swedish climates." Thesis, Umeå universitet, Institutionen för tillämpad fysik och elektronik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-125076.

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In the year 2006, the energy performance directive 2002/91/EG was passed by the European Union, according to this directive the Swedish building code was supplemented by a key measure of energy use intensity (EUI). The implemented EUI equals some energy use within a building divided by its floor area and must be calculated in new housing estate and shown when renting or selling housing property. In order to improve the EUI, energy efficiency refurbishments could be implemented. Building energy simulation tools enables a virtual view a building model and can estimate the energy use before imple

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19

PRISCO, LUCIANA PRATES. "SYNTHESIS OF AL2MO3O12 NANOMETRIC POWDERS FOR OPTIMIZATION OF BULK COEFFICIENT OF THERMAL EXPANSION." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2012. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=21439@1.

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PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO<br>CONSELHO NACIONAL DE DESENVOLVIMENTO CIENTÍFICO E TECNOLÓGICO<br>A síntese de pós nanométricos do Al2Mo3O12 para otimização de seu coeficiente de expansão térmica na forma maciça tem como objetivo principal aproximar o comportamento térmico intrínseco e extrínseco do material. A expansão térmica intrinseca de escala atomica é medida por difração de raios-X a partir do aumento dos parametros de rede, por outro lado, a tecnica de dilatometria mede ambos os efeitos tanto intrinsecos quanto extrinsecos provenientes da microestrutura. Materiais

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20

Archer, Robert Joseph 1957. "Effects of spacial variation of the thermal coefficient of expansion on optical surfaces." Thesis, The University of Arizona, 1988. http://hdl.handle.net/10150/276887.

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The deformation of a mirror's optical surface due to a spacial variation of the coefficient of thermal expansion is examined. Four types of variations of the coefficient of thermal expansion are studied. These represent variations which result after typical manufacturing and/or fabrication processes. Equations describing the deformations resulting from the variations in the coefficient of thermal expansion are derived for some of the cases. Deformations due to more complex variations in the coefficient of thermal expansion are developed empirically using data generated by the finite-element me

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21

Vural, Irem. "Synthesis Of Zirconium Tungstate And Its Use In Composites With Tunable Thermal Expansion Coefficient." Master's thesis, METU, 2011. http://etd.lib.metu.edu.tr/upload/12612973/index.pdf.

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Thermal mismatch between different components of a system could be sources of problems like residual stress induced cracking, thermal fatigue or even optical misalignment in certain high technology applications. Use of materials with tailored thermal expansion coefficient is a counter-measure to overcome such problems. With its negative thermal expansion coefficient zirconium tungstate (ZrW2O8) is a candidate component to be used in synthesis of composites with controlled thermal expansion coefficient (CTE). ZrW2O8 is typically produced by solid-state reaction between zirconium oxide and tung

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22

Neekhra, Siddharth. "A new mineralogical approach to predict coefficient of thermal expansion of aggregate and concrete." Texas A&M University, 2004. http://hdl.handle.net/1969.1/1461.

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A new mineralogical approach is introduced to predict aggregate and concrete coefficient of thermal expansion (CoTE). Basically, a modeling approach is suggested based on the assumption that the CoTE of aggregate and concrete can be predicted from the CoTE of their constituent components. Volume percentage, CoTE and elastic modulus of each constituent mineral phase are considered as input for the aggregate CoTE model, whereas the same properties for coarse aggregate and mortar are considered for the concrete CoTE model. Methods have been formulated to calculate the mineral volume percentage fr

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23

Drews, Aaron M. "Control of Thermal Expansion Coefficient of a Metal Powder Composite via Ceramic Nanofiber Reinforcement." University of Akron / OhioLINK, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=akron1248114951.

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24

Myers, Donald G. "Method for measurement of residual stress and coefficient of thermal expansion of laminated composites." [Gainesville, Fla.] : University of Florida, 2004. http://purl.fcla.edu/fcla/etd/UFE0003180.

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25

Wang, Jue. "System Design, Fabrication, and Characterization of Thermoelectric and Thermal Interface Materials for Thermoelectric Devices." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/83546.

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Thermoelectric devices are useful for a variety of applications due to their ability to either convert heat directly into electricity, or to generate a temperature gradient from an electric current. These devices offer several attractive features including compact size, no moving parts, limited maintenance requirements, and high reliability. Thus thermoelectric devices are used for temperature-control, cooling, or power generation in various industrial systems such as automobiles, avionics, refrigerators, chillers, laser diodes, dehumidifiers, and a variety of sensors. In order to improve the

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26

Mather, Paul J. "Functionalisation and characterisation of carbon blacks and their incorporation into HDPE and EVA polymer matrices to form conducting composites." Thesis, University of Newcastle Upon Tyne, 1996. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.287828.

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27

Проценко, Сергій Іванович, Сергей Иванович Проценко, Serhii Ivanovych Protsenko та ін. "Тemperature and Concentration Dependences of Anisotropic Magnetoresistance Film Materials". Thesis, Sumy State University, 2015. http://essuir.sumdu.edu.ua/handle/123456789/42726.

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In framework the phenomenological approach the question of the temperature dependence of anisotropic magnetoresistance (AMR) at the fixed value inducing an external magnetic field (B) and the concentration dependence of AMR at the fixed B and T were analyzes. The obtained ratio to assess and predict the magnitude of thermal and concentration coefficients of AMR, virtually can not be done in the classical model, since it allows complex ratio with many uncertain parameters.

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28

Crosser, Kara Elizabeth. "Heat Transfer Assessment of Aluminum Alloy Corrugated Naval Ship Deck Panels under VTOL Aircraft Thermal Loads." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/72947.

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The behavior of aluminum alloy ship deck panels under the thermal loads of Vertical Take-off-and Landing (VTOL) capable aircraft has become a question of interest with the introduction of new primarily aluminum alloy ships to the U.S. Naval Fleet. This study seeks to provide an initial investigation of this question by examining the transient transfer of heat through aluminum alloy ship deck panels under application of the local heat transfer similar to that of a VTOL aircraft exhaust plume core in typical operation. In this study, a jet stream intended to replicate the key physics of th

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29

Liew, Heng Lee Henry. "Quantifying the economic and commercial potential of a high strength, low thermal coefficient super-alloy." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45387.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2008.<br>Includes bibliographical references (p. 54-55).<br>Inspired by the importance of having a favourable sheathing material for superconducting wires, a high-strength, low thermal coefficient (CTE) super-alloy has been developed. Known as Incoloy 908, this super-alloy's material properties have been extensively studied, and various mechanical, thermal, magnetic, and elastic properties of it have been researched for many years. In the pursuit of broader applications for this superior alloy,

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30

Li, Zhonglin. "Tribological, Kinetic and Thermal Characteristics of Copper Chemical Mechanical Planarization." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1378%5F1%5Fm.pdf&type=application/pdf.

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31

Karch, Matthias Ottmar. "Design and Manufacturing of Hierarchical Multi-Functional Materials Via High Resolution additive Manufacturing." Master's thesis, Virginia Tech, 2017. http://tuprints.ulb.tu-darmstadt.de/6788/1/Master_Thesis_Karch_Matthias_Ottmar.pdf.

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32

Chen, I. Kang. "Design of a Polymeric Coating for Protecting Thermoelectric Materials from Sublimation and Oxidation." Thesis, University of North Texas, 2019. https://digital.library.unt.edu/ark:/67531/metadc1538763/.

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Thermoelectric (TE) devices can undergo degradation from reactions in corrosive environments and at higher operating temperatures by sublimation and oxidation. To prevent the degradation, we have applied two high temperature polymers (HTPs) as coatings for TE materials. Sintering temperatures were from 250°C to 400°C. We explain why dip coating is better technique in our study and had two potential HTPs for tests. By applying TGA (thermogravimetric analysis), we were able to figure out which HTPs have better thermal resistivity. Besides, TGA also help us to find proper curing cycles for HTPs.

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33

Jun, Byung Soon. "Measurement of thermal accommodation coefficients of inert gas mixtures on a surface of stainless steel /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3025627.

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34

Chamroune, Nabil. "Matériaux composites Aluminium/Carbone : architecture spécifique et propriétés thermiques adaptatives." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0140/document.

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Les matériaux composites à matrice métallique (CMM) sont actuellement étudiés pour être utilisés dans de nombreux domaines d’application. L’une des applications potentielles concerne leur utilisation en tant que drain thermique pour les modules de puissance. Pour cette application, deux conditions sont requises : une conductivité thermique (CT) élevée pour évacuer la chaleur générée par la puce électronique et un coefficient d’expansion thermique (CTE) proche du substrat céramique (2-8×10-6 /K) utilisé dans le module de puissance.Ainsi des matériaux composites à matrice aluminium (Al : CT de 2

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35

Østvik, Jan-Magnus. "Thermal aspects of corrosion of steel in concrete : effect of low temperature on the resistivity and the cathodic reaction rate." Doctoral thesis, Norwegian University of Science and Technology, Department of Structural Engineering, 2005. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-1815.

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36

Islam, Rakibul. "Electrical and thermal transport properties of polymer/carbonaceous nanostructured composites." Thesis, Lille 1, 2016. http://www.theses.fr/2016LIL10131/document.

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Les polymères conducteurs composites présentent des propriétés thermoélectriques qui en font une solution prometteuse, peu coûteuse, propre et efficace pour la récupération de pertes de chaleur. L’objet de cette thèse est l’étude des propriétés de composites nanostructurés à base de polyaniline (PANI) en fonction de la concentration en nanoobjets: nanotubes de carbone (1-D) et oxyde de graphène réduit (RGO) (2-D). Leur structure et morphologie ont été étudiées par MEB, MET, diffraction des rayons X et diffusion Raman. Les conductivités électrique et thermique, le coefficient Seebeck, la figure

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37

DINH, VAN QUY. "LOW THERMAL EXPANSION OF ELECTRODEPOSITED COPPER IN THROUGH SILICON VIAS." Kyoto University, 2020. http://hdl.handle.net/2433/253518.

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38

Weiss, Matthew. "Evaluation of Geophysical and Thermal Methods for Detecting Submarine Groundwater Discharge (SGD) in the Suwannee River Estuary, Florida." Scholar Commons, 2006. http://scholarcommons.usf.edu/etd/3811.

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Submarine groundwater discharge (SGD) represents a significant portion of the total discharge from coastal aquifers through diffuse seepage and point source springs, but can be difficult to locate. SGD is important as it can be a source of nutrients to estuaries and other coastal ecosystems. In an effort to evaluate geophysical and thermal methods for detecting SGD on the Florida Gulf coast, a suite of water-borne surveys were run in conjunction with aerial thermal imagery over the lower Suwannee River and estuary in March and September 2005. Thermal imagery exploits temperature differences be

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39

Thomas, Benjamin. "Matériaux composites Argent/Carbone à propriétés thermiques adaptatives." Thesis, Bordeaux, 2019. http://www.theses.fr/2019BORD0140.

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Du fait leur conductivité thermique élevée, les matériaux composites à matrice métallique et renfort carbone possèdent un fort potentiel d’application pour la gestion thermique en électronique. Ces travaux présentent le développement d’un nouveau procédé pour la synthèse de matériaux composites Ag/rGO (argent / « reduced Graphene Oxide ») et Ag/GF (argent / « Graphite Flakes ») par métallurgie des poudres. Ce procédé, inspiré des méthodes de « molecular level mixing », permet d’obtenir des poudres composites Ag/rGO dans lesquelles les nano-renforts sont individualisés jusqu’à une concentration

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40

Ezat, Gulstan S. "The influence of multi-walled carbon nanotubes on the properties of polypropylene nanocomposite : the enhancement of dispersion and alignment of multiwalled carbon nanotube in polypropylene nanocomposite and its effect on the mechanical, thermal, rheological and electrical properties." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5703.

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Carbon nanotubes are known as ideal fillers for polymer systems; the main advantage of carbon nanotubes over other nano-reinforcing particles is the combination of superior strength and stiffness with large aspect ratio. Carbon nanotubes may improve the mechanical, electrical and thermal properties of polymers, but to realise their potential in polymer systems uniform dispersion, strong interfacial adhesion and alignment of nanotubes within the polymer matrix are necessary. These properties are not easy to achieve and they are key challenges in producing CNT/Polymer system. This research was c

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41

Yu, Haixuan. "An integrated systems approach to understanding distortion and residual stress during thermal processing: design for heat treating." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/565.

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Heat treatment processes are used to develop the desired mechanical properties for steels. Unfortunately, heat treatment, especially quenching, can cause distortion. Failure to meet geometry specifications can result in extensive rework or rejection of the parts. A series of quenching simulations, using DANTE, have been conducted on an AISI 4140 steel Navy C-ring distortion coupon and a WPI designed plate with a hole to determine the effects of quenching process parameters including part geometry, agitation during quenching, and quench start temperatures on distortion. The heat transfer coeffi

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42

Smith, Jacob A. "Electrical Performance of Copper-Graphene Nano-Alloys." Ohio University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=ohiou1550675878730599.

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43

Assy, Ali. "Development of two techniques for thermal characterization of materials : Scanning Thermal Microscopy (SThM) and 2ω method". Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0001/document.

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Deux techniques de caractérisation thermique des matériaux et d’analyse du transfert de chaleur aux micro- et nano- échelles ont été étudiées et sont présentées dans ce mémoire. La première technique est la microscopie thermique à sonde locale (SThM). La pointe d’un microscope à force atomique intègre un élément résistif. Utilisée en mode contact, cette pointe, chauffée par effet joule, permet l'excitation thermique localisée de l’échantillon. La détermination des propriétés thermiques de l’échantillon nécessite l'analyse de la réponse de cette pointe avec un modèle du système sonde-échantillo

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44

Pinheiro, Francisco NascÃlio. "Development of a New Prototype Thermal Desalination with Heat Recovery Triggered by Source Controlled of Electric Energy." Universidade Federal do CearÃ, 2013. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=11517.

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CoordenaÃÃo de AperfeiÃoamento de NÃvel Superior<br>Solar thermal desalination plants operate with variable heat source, solar radiation, which complicates the identification of the influence of process variables and of the constructive geometric parameters. In operation, brackish or salt water is heated in a storage tank, where it evaporates and condenses on the walls of a lower metal tray (first stage) installed above the tank. By condensing, the steam transfers heat to the salt water of this first stage and the condensate is collected on the outside of the tank. This work aims to develop a

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Lin, Ting-Yang, and 林鼎洋. "Variations of Thermal Expansion Coefficient and Electrical Resistivity Associated with Martensitic Transformation in TiNi Shape Memory Alloys." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/62924704738426582794.

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碩士<br>國立臺灣大學<br>材料科學與工程學研究所<br>90<br>Coefficient of Thermal Expansion( CTE ) and Electrical Resistivity ( ER ) of four kinds of TiNi and TiNiFe SMAs were investigated in this study. CTEs of parent phase and martensite are 11 ppm/℃ and 7~8 ppm/℃, respectively, which are independent of alloys’ composition and rolling direction. However, the CTE of R-phase is not a constant. The anisotropic behavior of CTE of B2óB19’ transformation is similar to the results of martensitic transformation in Ni-Al single crystal, and that of CTE of B2óR transformation from specimens with or without solution-treatin

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46

盧裕益. "BaTio��-based positive temperature coefficient of resistivity ceramic sensor." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/25912790514412246828.

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47

Chetty, Raju. "Thermoelectric Propeties of Cu Based Chalcogenide Compounds." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2912.

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Thermoelectric (TE) materials directly convert heat energy into electrical energy. The conversion efficiency of the TE devices depends on the performance of the materials. The conversion efficiency of available thermoelectric materials and devices is low. Therefore, the development of new materials for improving thermoelectric device performance is a highly essential. As the performance of the TE materials depends on TE figure of merit [zT=S2P T ] which consist of three material properties such as Seebeck coefficient (S), electrical resistivity ( ) and thermal conductivity ( ). Thermoelectric

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48

Chetty, Raju. "Thermoelectric Propeties of Cu Based Chalcogenide Compounds." Thesis, 2014. http://hdl.handle.net/2005/2912.

Full text

Abstract:

Thermoelectric (TE) materials directly convert heat energy into electrical energy. The conversion efficiency of the TE devices depends on the performance of the materials. The conversion efficiency of available thermoelectric materials and devices is low. Therefore, the development of new materials for improving thermoelectric device performance is a highly essential. As the performance of the TE materials depends on TE figure of merit [zT=S2P T ] which consist of three material properties such as Seebeck coefficient (S), electrical resistivity ( ) and thermal conductivity ( ). Thermoelectric

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49

Bali, Ashoka. "Study of Thermoelectric Properties of Lead Telluride Based Alloys and Two-Phase Compounds." Thesis, 2014. http://etd.iisc.ac.in/handle/2005/2950.

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The growing need of energy worldwide has lead to an increasing demand for alternative sources of power generation. Thermoelectric materials are one of the ‘green energy sources’ which convert directly heat into electricity, and vice–versa. The efficiency of this conversion is dependent on ‘figure of merit’ (z T), which depends on the material’s Seebeck coefficient (S), electrical resistivity (ρ) and thermal conductivity (κ) through the relation z T=S2T/ρκ, where T is the temperature. High values of z T lead to high efficiency, and therefore, z T must be maximized. Lead telluride is well–establ

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50

Bali, Ashoka. "Study of Thermoelectric Properties of Lead Telluride Based Alloys and Two-Phase Compounds." Thesis, 2014. http://hdl.handle.net/2005/2950.

Full text

Abstract:

The growing need of energy worldwide has lead to an increasing demand for alternative sources of power generation. Thermoelectric materials are one of the ‘green energy sources’ which convert directly heat into electricity, and vice–versa. The efficiency of this conversion is dependent on ‘figure of merit’ (z T), which depends on the material’s Seebeck coefficient (S), electrical resistivity (ρ) and thermal conductivity (κ) through the relation z T=S2T/ρκ, where T is the temperature. High values of z T lead to high efficiency, and therefore, z T must be maximized. Lead telluride is well–establ

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