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Journal articles on the topic 'Effective electrical conductivity'

Author: Grafiati

Published: 4 June 2025

Last updated: 1 August 2025

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1

Yu, Jun Suh, B. S. Lee, Sung Churl Choi, Ji Hun Oh, and Jae Chun Lee. "Preparation and Characterization of Porous Si-Coated SiC Fiber Media." Materials Science Forum 449-452 (March 2004): 233–36. http://dx.doi.org/10.4028/www.scientific.net/msf.449-452.233.

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Electrically conductive porous Si/SiC fiber media were prepared by infiltration of liquid silicon into porous carbon fiber preforms. The series rule of mixture for the effective electrical conductivity was applied to the disc shaped samples to estimate their silicon content, effective electrical conductivity and porosity. The electrical conductivity was estimated by assuming the disc sample as a plate of equivalent geometry, i.e., same thickness, electrode distance and volume. As the volumetric content of silicon in a sample increases from 0.026% to 0.97%, the estimated electrical conductivity

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2

Akhmedov, T., S. M. Otazhonov, M. M. Khalilov, N. Yunusov, U. Mamadzhanov, and N. M. Zhuraev. "Effective dielectric permeability and electrical conductivity of polycrystalline PbTe films with disturbed stochiometry." Journal of Physics: Conference Series 2131, no. 5 (2021): 052008. http://dx.doi.org/10.1088/1742-6596/2131/5/052008.

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Abstract This paper presents the study of the effective dielectric constant and electrical conductivity of polycrystalline PbTe films with disturbed stoichiometry. It is shown that superstoichiometric additions of Te and Pb within the limits of solubility by doping with PbTe contribute to a change in a wide range of concentrations of electrically active impurities and, consequently, to an increase in the dielectric constant (ɛ), electrical conductivity (σ) and absorption coefficient (α), in addition, the excess of these components strongly affects the amount of polarization.

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3

Li, Guoan, and Andrew S. Douglas. "The effective electrical conductivity of nonlinear laminate composites." Quarterly of Applied Mathematics 53, no. 3 (1995): 433–64. http://dx.doi.org/10.1090/qam/1343461.

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4

Carrington, M. E. "QED Electrical Conductivity from the 3PI Effective Action." Nuclear Physics A 820, no. 1-4 (2009): 135c—138c. http://dx.doi.org/10.1016/j.nuclphysa.2009.01.034.

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Kulakov, Vladimir, Andrey Aniskevich, Sergey Ivanov, Triinu Poltimae, and Olesja Starkova. "Effective electrical conductivity of carbon nanotube–epoxy nanocomposites." Journal of Composite Materials 51, no. 21 (2016): 2979–88. http://dx.doi.org/10.1177/0021998316678304.

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6

Snarskii, A. O., L. M. Vikhor, and S. O. Podlasov. "Universal Relation for Thermoelectric Figure of Merit of Two-Phase Composites." Journal of Thermoelectricity, no. 2 (June 25, 2025): 17–24. https://doi.org/10.63527/1607-8829-2025-2-17-24.

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In the paper, a universal expression for the effective thermoelectric figure of merit of a composite two-phase material is found based on the isomorphism method. It is shown that to determine the effective thermoelectric figure of merit, a set of values of local kinetic coefficients of the phases, namely electrical conductivity, thermal conductivity, and thermoEMF, and the effective value of the thermoEMF coefficient is quite sufficient to use. To determine the thermoelectric figure of merit, it is not necessary to know the effective coefficients of electrical conductivity and thermal conducti

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7

Pari, Arvind, Johan Tiemen Padding, and Remco Hartkamp. "Numerical Measurement of the Effective Electrical Conductivity of Electrolyte-Gas Bubble Dispersions." ECS Meeting Abstracts MA2023-01, no. 36 (2023): 1968. http://dx.doi.org/10.1149/ma2023-01361968mtgabs.

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Bubble formation during water electrolysis is inevitable. Apart from mass and heat transfer limitations, the presence of these bubbles causes a decrease in the local electrical conductivity of the electrolyte, thereby contributing further to the ohmic resistance of the system. Experimental and theoretical studies have shown that the effective electrical conductivity of an electrolyte-gas bubble dispersion depends on the volume fraction of gas bubbles. However, these studies do not provide insight into the dependence of conductivity on the geometric and spatial parameters of the dispersion, suc

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8

Tane, Masakazu, Soong Keun Hyun, and Hideo Nakajima. "Extended Effective-Mean-Field Analysis for Electrical Conductivity of Lotus-Type Porous Nickel." Materials Science Forum 512 (April 2006): 331–36. http://dx.doi.org/10.4028/www.scientific.net/msf.512.331.

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We studied the effective electrical conductivity of lotus-type porous nickel with cylindrical elongated pores by applying the extended effective-mean-field (extended EMF) theory that is based on Hatta-Taya’s theory and Bruggeman’s effective-medium approximation. We modeled lotus-type porous nickel as the composite materials with ellipsoidal void inclusion, and examined the effect of shape and orientation of the pores and applied-electric-field direction on the effective electrical conductivity. The extended EMF theory revealed that well-known Archie’s power law is quite useful for expressing t

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9

Torquato, S. "Effective electrical conductivity of two‐phase disordered composite media." Journal of Applied Physics 58, no. 10 (1985): 3790–97. http://dx.doi.org/10.1063/1.335593.

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10

Chechetkin, V. R. "Effective electrical and thermal conductivity of multifilament twisted superconductors." Physics Letters A 377, no. 15 (2013): 1139–42. http://dx.doi.org/10.1016/j.physleta.2013.02.034.

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11

Gao, Lei, Xiaofeng Zhou, and Yulong Ding. "Effective thermal and electrical conductivity of carbon nanotube composites." Chemical Physics Letters 434, no. 4-6 (2007): 297–300. http://dx.doi.org/10.1016/j.cplett.2006.12.036.

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12

Hautot, Sophie, and Pascal Tarits. "Effective electrical conductivity of 3-D heterogeneous porous media." Geophysical Research Letters 29, no. 14 (2002): 14–1. http://dx.doi.org/10.1029/2002gl014907.

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13

Rajlaxmi Chaudhary’s and SD. Patle. "Estimation of effective thermal conductivity for porous material." International Journal of Science and Research Archive 14, no. 2 (2025): 1513–24. https://doi.org/10.30574/ijsra.2025.14.2.0556.

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In this study, an algebraic expression for the effective thermal conductivity (ETC) of two-phase porous materials is derived using a two-layer model, which is analogous to the electrical resistance in an electrical circuit. This analytical approach enables the evaluation of the ETC through the proposed algebraic expression for two-dimensional porous media. The geometries under consideration include arrays of non-touching in-line and staggered square and circular cylinders, as well as touching hexagonal arrangements, rectangular grilles, criss-cross grilles, hexagons, and touching square cylind

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14

Penn, S. "The Effective Application of Electrical Conductivity Techniques in Site Investigations for Civil Engineers." Geological Society, London, Engineering Geology Special Publications 2, no. 1 (1986): 343–47. http://dx.doi.org/10.1144/gsl.1986.002.01.58.

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AbstractThe application of electrical conductivity techniques to site investigation has proved to be a rapid, cost effective method for the location and mapping of shallow mine workings in different rock types; faults, clay pockets and the variation in overburden thickness. Non-contacting terrain conductivity meters have a rapid response and are direct reading; therefore large areas can be investigated quickly, and in contrast to some other geophysical techniques conductivity surveys may be undertaken on small sites.On sites where there is a contrast in electrical conductivity between the ‘dis

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15

Dvoreckaya, Aleksandra, Lyubov' Anikanova, Tat'yana Sudzilovskaya, Zoya Malysheva, and Nikolay Dvoretsky. "Electrical conductivity of potassium polyferrite doped with doubly charged cations." From Chemistry Towards Technology Step-By-Step 5, no. 2 (2024): 140–46. http://dx.doi.org/10.52957/2782-1900-2024-5-2-140-146.

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To clarify the charge compensation mechanism and the way of alloying additives placement, the authors synthesised samples of potassium βʺ-polyferrites with a wide range of mole fraction of introduced doubly charged cations. For these samples, the authors measured the electronic conductivity, cationic conductivity, and performed X-ray diffraction (XRD) analysis. The authors identified the charge compensation mechanism in potassium β″-polyferrite when doped with divalent ions of calcium, strontium, magnesium, and zinc. The charge compensation mechanisms differ depending on the radius of the intr

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Lee, Jae Chun, Jun Suh Yu, Jae Hoon Sung, Sung Park, and Sung Chul Choi. "Thermal and Electrical Conductivities of Porous Carbon-Coated Ceramic Fiber Composites." Key Engineering Materials 317-318 (August 2006): 491–94. http://dx.doi.org/10.4028/www.scientific.net/kem.317-318.491.

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Porous ceramic fiber composites were coated with pyrolytic carbon by the decomposition of infiltrated phenolic resin in a nitrogen atmosphere at 800. The amount of carbon coating was varied to tailor the electrical conductivity of the carbon-coated composites. The electrical and thermal conductivity of the composites were measured at room temperature using a two-point method and a hot-wire one, respectively. Up to 30 wt% pyrolytic carbon, the electrical conductivity σ shows linearly increasing tendency and is fitted by the effective conductivity according to the parallel rule of a mixture σeff

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Cho, Jae Yong, Hee Min Lee, Muhammad Nasir Bashir, and Joon Sang Lee. "Numerical Investigation of Water Transport and Effective Electrical Conductivity in Perforation of Gas Diffusion Layer Using Lattice Boltzmann Method." Fractal and Fractional 8, no. 12 (2024): 719. https://doi.org/10.3390/fractalfract8120719.

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In polymer electrolyte membrane fuel cells, the gas diffusion layer (GDL) is composed of porous media and serves a critical role as a mass transport layer, facilitating reactant gas diffusion, removal of water generated in the catalyst layer, and electron transport. Artificial spacings known as perforations can be introduced to improve water management within this mass transport system. However, the impact of these perforations on the effective electrical conductivity has not been adequately studied. This study employs numerical methods to investigate water management and effective electrical

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Zhang, Hongtao, Qinglin Pan, Yu Zeng, and Hongyan Zhang. "EFFECTIVE PROPERTIES SUCH AS PERMITTIVITY, THERMAL CONDUCTIVITY, AND ELECTRICAL CONDUCTIVITY OF INTERPENETRATING BIPHASIC COMPOSITES." Special Topics & Reviews in Porous Media - An International Journal 3, no. 3 (2012): 221–27. http://dx.doi.org/10.1615/specialtopicsrevporousmedia.v3.i3.40.

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Misra, S., C. Torres-Verdín, A. Revil, J. Rasmus, and D. Homan. "Interfacial polarization of disseminated conductive minerals in absence of redox-active species — Part 2: Effective electrical conductivity and dielectric permittivity." GEOPHYSICS 81, no. 2 (2016): E159—E176. http://dx.doi.org/10.1190/geo2015-0400.1.

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Hydrocarbon-bearing conventional formations, mudrock formations, and source-rock formations generally contain clays, pyrite, magnetite, graphitelike carbon, and/or other electrically conductive mineral inclusions. Under redox-inactive conditions, these inclusions give rise to perfectly polarized interfacial polarization (PPIP) when subjected to an external electric field. Effective electrical conductivity and dielectric permittivity of geomaterials containing such inclusions are frequency-dependent properties due to the electric-field-induced interfacial polarization and associated charge rela

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20

Radzuan, Nabilah Afiqah Mohd, Abu Bakar Sulong, and Mahendra Rao Somalu. "Electrical properties of extruded milled carbon fibre and polypropylene." Journal of Composite Materials 51, no. 22 (2017): 3187–95. http://dx.doi.org/10.1177/0021998316688075.

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A milled carbon fibre and polypropylene polymer composite at high filler loading was developed to produce conductive polymer composites for high conductive applications. Current research of conductive polymer composite material has reported about in-plane conductivity that was often higher than through-plane conductivity, which contradicted with the target of applications that required higher electrical conductivity in the through-plane direction. Therefore, electrical conductivity in parallel and transverse to extrusion directions were investigated. The general-effective media and modified fi

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21

Kim, Sang-il, Jong-Chan Lim, Heesun Yang, and Hyun-Sik Kim. "Impact of Fermi Surface Shape Engineering on Calculated Electronic Transport Properties of Bi-Sb-Te." Korean Journal of Metals and Materials 59, no. 1 (2021): 54–60. http://dx.doi.org/10.3365/kjmm.2021.59.1.54.

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Using thermoelectric refrigerators can address climate change because they do not utilize harmful greenhouse gases as refrigerants. To compete with current vapor compression cycle refrigerators, the thermoelectric performance of materials needs to be improved. However, improving thermoelectric performance is challenging because of the trade-off relationship between the Seebeck coefficient and electrical conductivity. Here, we demonstrate that decreasing conductivity effective mass by engineering the shape of the Fermi surface pocket (non-parabolicity factor) can decouple electrical conductivit

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22

del Río, J. A., J. Tagüeña-Martínez, and J. A. Ochoa-Tapia. "Effective electrical conductivity of porous silicon: A novel theoretical approach." Solid State Communications 87, no. 6 (1993): 541–45. http://dx.doi.org/10.1016/0038-1098(93)90592-b.

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23

Umer, Usama, Mustufa Haider Abidi, Zeyad Almutairi, and Mohamed K. Aboudaif. "A Multi-Phase Analytical Model for Effective Electrical Conductivity of Polymer Matrix Composites Containing Micro-SiC Whiskers and Nano-Carbon Black Hybrids." Polymers 17, no. 2 (2025): 128. https://doi.org/10.3390/polym17020128.

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Multifunctional polymer composites containing micro/nano hybrid reinforcements have attracted intensive attention in the field of materials science and engineering. This paper develops a multi-phase analytical model for investigating the effective electrical conductivity of micro-silicon carbide (SiC) whisker/nano-carbon black (CB) polymer composites. First, CB nanoparticles are dispersed within the non-conducting epoxy to achieve a conductive CB-filled nanocomposite and its electrical conductivity is predicted. Some critical microstructures such as volume percentage and size of nanoparticles,

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24

Zhang, Chi, Jiayue Zhou, Rui Han, et al. "A Cost-Effective Strategy to Modify the Electrical Properties of PEDOT:PSS via Femtosecond Laser Irradiation." Crystals 14, no. 9 (2024): 775. http://dx.doi.org/10.3390/cryst14090775.

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Poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) is a commonly used conductive polymer in organic optoelectronic devices. The conductivity and work function of the PEDOT:PSS are two important parameters that significantly determine the performance of the associated optoelectronic device. Traditionally, some solvents were doped in PEDOT:PSS solution or soaked in PEDOT:PSS film to improve its electrical conductivity, but they damaged the integrity of PEDOT:PSS and reduce the film’s work function. Herein, for the first time, we use femtosecond laser irradiation to modify the el

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25

Chinh, Pham Duc. "Electrical properties of sedimentary rocks having interconnected water‐saturated pore spaces." GEOPHYSICS 65, no. 4 (2000): 1093–97. http://dx.doi.org/10.1190/1.1444802.

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Permeable sedimentary rocks can often be modeled as an impermeable rock matrix cut by a system of an irregular system of interconnected, irregularly shaped, water‐saturated pore spaces. I represent this system by a multiphase effective medium that is compatible with Archie’s Law for electrical conductivity. My effective medium is an extention of the self‐similar Sen, Scalar, and Cohen model which characterizes sedimentary rocks as a water suspension of spherical solid grains. My generalized multiphase model includes two important components: open water spherelike pockets, which significantly i

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26

Krcho, Stanislav. "Electron Percolation In Copper Infiltrated Carbon." Journal of Electrical Engineering 66, no. 6 (2015): 339–43. http://dx.doi.org/10.2478/jee-2015-0056.

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Abstract The work describes the dependence of the electrical conductivity of carbon materials infiltrated with copper in a vacuum-pressure autoclave on copper concentration and on the effective pore radius of the carbon skeleton. In comparison with non-infiltrated material the electrical conductivity of copper infiltrated composite increased almost 500 times. If the composite contained less than 7.2 vol% of Cu, a linear dependence of the electrical conductivity upon cupper content was observed. If infiltrated carbon contained more than 7.2 vol% of Cu, the dependence was nonlinear – the curve c

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Lemczyk, T. F., B. L. Mack, J. R. Culham, and M. M. Yovanovich. "PCB Trace Thermal Analysis and Effective Conductivity." Journal of Electronic Packaging 114, no. 4 (1992): 413–19. http://dx.doi.org/10.1115/1.2905474.

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The electrical current carrying capability of a surface or buried trace located within a fiberglass printed circuit board (PCB), is of important interest in the microelectronics industry. The maximum allowable trace power, hence local integrity and maximum allowable operating temperature, will depend on several parameters including the circuit board thermal conductivity, thickness, trace size and location. A two-dimensional, steady-state thermal conduction analysis is made on a finite, plane homogeneous medium (PCB), to examine the trace behavior. The trace is modeled as a zero-thickness, stri

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Li, Chang Ming, Chun Yang Li, Cheng Cheng Zhang, Ming Yue Fan, Yan Li Cheng, and Bao Zhong Han. "Simulation on Electrical Conductivity of CNTs/PE Composites." Advanced Materials Research 1035 (October 2014): 408–12. http://dx.doi.org/10.4028/www.scientific.net/amr.1035.408.

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In order to investigate the electrical conductivity of carbon nanotubes (CNTs)/polyethylene (PE) composites, the relationship curves between the external electrical filed strength and the electrical conductivity of CNTs/PE composites with different microstructures were generated based on numerical simulation. The simulation models of CNTs/PE composites were designed through changing the content, aspect ratio and orientation degree of CNTs. After DC electrical field is applied between top and bottom surfaces of the composites, the distribution of electrical current density was calculated based

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Chen, Xi, Jiabin Gao, Yunchang Song, Yaping Gong, Meng Qi, and Runlong Hao. "Fabrication of a High Water Flux Conductive MWCNTs/PVC Composite Membrane with Effective Electrically Enhanced Antifouling Behavior." Coatings 11, no. 12 (2021): 1548. http://dx.doi.org/10.3390/coatings11121548.

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Membrane fouling is a major issue that deteriorates the performance of membrane filtration systems. The electrically assisted membrane filtration process is proven to be effective for alleviating membrane fouling. In this study, we synthesized an electrically conductive membrane by incorporating multiwalled carbon nanotubes (MWCNTs) into polyvinyl chloride (PVC). The synthesized membranes have larger porosity than the PVC membrane (incorporating polyethylene glycol (PEG)), and thus possess much higher water flux under the same testing conditions. The initial and stable water fluxes are 2033 L/

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Zhang, Peng, Williams Ozowe, Rodney T. Russell, and Mukul M. Sharma. "Characterization of an electrically conductive proppant for fracture diagnostics." GEOPHYSICS 86, no. 1 (2021): E13—E20. http://dx.doi.org/10.1190/geo2019-0367.1.

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Fracture diagnosis with electromagnetic (EM) and electrical tools requires proppants with high electrical conductivity and mechanical strength. Lab measurements of the electrical and hydraulic conductivity of proppants are critical for selecting the best candidates. Such measurements greatly benefit simulations, field tests, and the ultimate application of such proppants in the field. To that end, a new lab protocol is developed for measuring the electrical and hydraulic conductivity of proppants. The lab setup, which mainly includes a resistivity core holder and a Hassler sleeve core holder,

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Kostromin, S., and S. Bronnikov. "Electrical conductivity of polymer/carbon nanofillers composites." Journal of Physics: Conference Series 2045, no. 1 (2021): 012008. http://dx.doi.org/10.1088/1742-6596/2045/1/012008.

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Abstract Using a broadband dielectric spectrometry we studied the effect of carbon nanofillers (CN) with various aspect ratio (fullerene C60, multi-walled carbon nanotubes (MWCNT), reduced graphene oxide (rGO) and hybrid rGO:MWCNT nanofillers) on the electrical conductivity of the polyazomethine-based nanocomposites. One-dimensional MWCNTs with high aspect ratio were shown to be the most effective CN for fabrication of polymer-based nanocomposites with enhanced electrical conductivity.

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Rahman, M. M., D. R. Sarker, M. M. Rahman, and M. O. Faruk. "Enhancement of Electrical Conductivity of Polyaniline Synthesized by using Carbon Nanofiber." Journal of Scientific Research 13, no. 1 (2021): 243–52. http://dx.doi.org/10.3329/jsr.v13i1.48356.

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Carbon nanofiber (CNF) is a very useful additive for improving the performance of polymer matrix composites, but the performance has sometimes been interrupted by limits appear within composite processing. Recently, CNF based polymer composites are intensely considered as promising materials in many application fields, such as electrical devices, electrode materials for batteries, supercapacitors, sensors, etc. Among these, the electrical conductivity is always the first priority need to be considered. Polyaniline (PANI) and PANI-CNF composites are synthesized by chemical oxidative polymerizat

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Rahman, M. M., D. R. Sarker, M. M. Rahman, and M. O. Faruk. "Enhancement of Electrical Conductivity of Polyaniline Synthesized by using Carbon Nanofiber." Journal of Scientific Research 13, no. 1 (2021): 243–52. http://dx.doi.org/10.3329/jsr.v13i1.48356.

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Carbon nanofiber (CNF) is a very useful additive for improving the performance of polymer matrix composites, but the performance has sometimes been interrupted by limits appear within composite processing. Recently, CNF based polymer composites are intensely considered as promising materials in many application fields, such as electrical devices, electrode materials for batteries, supercapacitors, sensors, etc. Among these, the electrical conductivity is always the first priority need to be considered. Polyaniline (PANI) and PANI-CNF composites are synthesized by chemical oxidative polymerizat

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34

Misra, S., C. Torres-Verdín, A. Revil, J. Rasmus, and D. Homan. "Interfacial polarization of disseminated conductive minerals in absence of redox-active species — Part 1: Mechanistic model and validation." GEOPHYSICS 81, no. 2 (2016): E139—E157. http://dx.doi.org/10.1190/geo2015-0346.1.

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Electrically conductive mineral inclusions are commonly present in organic-rich mudrock and source-rock formations such as veins, laminations, rods, grains, flakes, and beds. Laboratory and subsurface electromagnetic (EM) measurements performed on geomaterials containing electrically conductive inclusions generally exhibit frequency dispersion due to interfacial polarization phenomena at host-inclusion interfaces. In the absence of redox-active species, surfaces of electrically conductive mineral inclusions are impermeable to the transport of charge carriers, inhibit the exchange of charges an

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Yu, Nan Hui, and Ji Jun Fan. "The Measurement of Dielectric Constant and Electrical Conductivity of ER Fluids." Advanced Materials Research 711 (June 2013): 51–55. http://dx.doi.org/10.4028/www.scientific.net/amr.711.51.

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In this paper, the dielectric constants of ER fluids with different particle concentration were measured by frequency method, and their electrical conductivities under different external electrical fields were also measured by method of conductivity cell constant. The results obtained from above measurements are as follows: the dielectric constant of ER fluid increases with the increasing of concentration; its electrical conductivity of the same concentration increases with the increasing of electrical field strength; for gradually increasing concentration, the conductivity first increases, th

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Otajonov, Salim, Mukhammadmuso Khalilov, Gulnara Kochkorova, Irodaxon Tishabayeva, Muhiddinjon Тeshaboyev, and Nigora Tashlanova. "The effective role of temperature in improving the electrical conductivity and thermopower of n-PbTe films." E3S Web of Conferences 508 (2024): 01011. http://dx.doi.org/10.1051/e3sconf/202450801011.

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This paper discusses the effective role of temperature in improving the electrical conductivity and thermoelectric power of n-PbTe films obtained by high-temperature evaporation. It has been established that an increase in the substrate temperature to 350-370 0С leads to an increase in thermopower and electrical conductivity due to an increase in the diffusion process, leading to an increase in blocks. It is found that the thermoelectric parameters strongly depend on the film thickness.

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Peng, Ke Wu, Peng Zhang, Jian Guo Xie, and He Li Ma. "Study on Properties of Al₂O₃ –CaO-Na₂CO₃ Slag System." Advanced Materials Research 391-392 (December 2011): 1302–5. http://dx.doi.org/10.4028/www.scientific.net/amr.391-392.1302.

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Liquidus temperature, electrical conductivity and phase composition of Al2O3-CaO-Na2CO3 slag were studied in the paper. The results showed that the minimum value of liquidus temperature was 1429°C when the content of Na2CO3 was 11%. The Al2O3-CaO-Na2CO3 slag of lower liquidus temperature had higher electrical conductivity, and the electrical conductivity of Al2O3-CaO-Na2CO3 slag increased with the increase of temperature. The main phases of Al2O3-CaO-Na2CO3 slag are composed of CaAl2O4, Ca3Al10O18, NaAlO2 and Na2CO3. The addition of Na2CO3 is to be more effective for decreasing liquidus temper

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Kanu, M. O., Gabriel Wirdzelii Joseph, and Israel George. "Measurement of Physicochemical Properties, Electrical and Thermal Conductivity of Wood Ash for Effective Soil Amendment." INDONESIAN JOURNAL OF APPLIED PHYSICS 11, no. 2 (2021): 176. http://dx.doi.org/10.13057/ijap.v11i2.47345.

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The ability of the soil to regulate heat energy is important for plant growth, soil texture and strength. Many agricultural soils are acidic in nature which tends to limit plant growth and microbial activity. Aside from agricultural lime, wood ash is used to amend physical and physicochemical properties of the soil. To maintain the soil hydraulic and physicochemical properties and to increase plant yield, it is important to know the physicochemical and physical properties of the ash used. The physiochemical and physical properties vary across various plant species. Ash samples from seven diffe

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Caradonna, Andrea, Claudio Badini, Elisa Padovano, and Mario Pietroluongo. "Electrical and Thermal Conductivity of Epoxy-Carbon Filler Composites Processed by Calendaring." Materials 12, no. 9 (2019): 1522. http://dx.doi.org/10.3390/ma12091522.

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Electrical and thermal conductivity of composites which contain carbon-based fillers in an epoxy matrix were investigated. The fillers were dispersed in the liquid matrix by using three roll mill equipment. The filler/matrix mixture was cast in a mold and then cured, thus obtaining composite specimens. Multiwall carbon nanotubes, graphene-like nanoplatelets, and graphite were used as fillers and their effect on conductivity was investigated. Electrical and thermal conductivity were measured at different filler loads. It was found that the formation of percolation paths greatly enhanced electri

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Zhao, Shuanfeng, Yao Miao, Rongxia Chai, et al. "High-Precision Electrical Impedance Tomography for Electrical Conductivity of Metallic Materials." Advances in Materials Science and Engineering 2022 (March 21, 2022): 1–16. http://dx.doi.org/10.1155/2022/3611691.

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Metal materials are subject to deformation, internal stress distribution, and cracking during processing, all of which affect the distribution of electrical conductivity of the metal. Suppose we can detect the conductivity distribution of metal materials in real time. In that case, we can complete the inverse imaging of metal material properties, structures, cracks, etc. and realize nondestructive flaw detection. However, metal materials' small resistance, high electrical conductivity, and susceptibility of voltage signals to noise signal interference make an accurate measurement of metal cond

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Deng, Fei, and Quan-Shui Zheng. "An analytical model of effective electrical conductivity of carbon nanotube composites." Applied Physics Letters 92, no. 7 (2008): 071902. http://dx.doi.org/10.1063/1.2857468.

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Tane, Masakazu, and Hideo Nakajima. "Effective-Mean-Field Theory for Electrical Conductivity of Multiphase Composite Materials." Japanese Journal of Applied Physics 46, no. 8A (2007): 5221–25. http://dx.doi.org/10.1143/jjap.46.5221.

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Ganguly, Suvankar, Sudipta Sikdar, and Somnath Basu. "Experimental investigation of the effective electrical conductivity of aluminum oxide nanofluids." Powder Technology 196, no. 3 (2009): 326–30. http://dx.doi.org/10.1016/j.powtec.2009.08.010.

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Godyak, V. A., R. B. Piejak, and B. M. Alexandrovich. "Effective electron collision frequency and electrical conductivity of radio frequency plasmas." Journal of Applied Physics 85, no. 6 (1999): 3081–83. http://dx.doi.org/10.1063/1.369646.

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Zhang, T., and Y. B. Yi. "Monte Carlo simulations of effective electrical conductivity in short-fiber composites." Journal of Applied Physics 103, no. 1 (2008): 014910. http://dx.doi.org/10.1063/1.2828180.

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Shi, Hui, Congcong Liu, Qinglin Jiang, and Jingkun Xu. "Effective Approaches to Improve the Electrical Conductivity of PEDOT:PSS: A Review." Advanced Electronic Materials 1, no. 4 (2015): 1500017. http://dx.doi.org/10.1002/aelm.201500017.

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Alhashmi Alamer, Fahad, Ghadah A. Almalki, and Khalid Althagafy. "Advancements in Conductive Cotton Thread-Based Graphene: A New Generation of Flexible, Lightweight, and Cost-Effective Electronic Applications." Journal of Composites Science 7, no. 11 (2023): 476. http://dx.doi.org/10.3390/jcs7110476.

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Conductive threads have emerged as a highly promising platform for the advancement of smart textiles, enabling the integration of conductivity into fabric materials. In this study, we present a novel approach to fabricate highly flexible graphene-based smart threads, which exhibit exceptional electrical properties. Four distinct types of smart threads were meticulously prepared by drop-casting graphene dispersions onto cotton threads, utilizing various solvents. The influence of annealing temperature and the quantity of dispersed graphene on the electrical conductivity of the threads was syste

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Fan, Tiehan, Jianxin Hou, and Jian Hu. "An Effective Framework for Predicting Performance of Solid-Solution Copper Alloys Using a Feature Engineering Technique in Machine Learning." Metals 13, no. 10 (2023): 1641. http://dx.doi.org/10.3390/met13101641.

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Utilized extensively in a myriad of industries, solid-solution copper alloys are prized for their superior electrical conductivity and mechanical properties. However, optimizing these often mutually exclusive properties poses a challenge, especially considering the complex interplay of alloy composition and processing techniques. To address this, we introduce a novel computational framework that employs advanced feature engineering within machine learning algorithms to accurately predict the alloy’s microhardness and electrical conductivity. Our methodology demonstrates a substantial enhanceme

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Kim, Se Yun, Hyun-Sik Kim, Kyu Hyoung Lee, et al. "Influence of Pd Doping on Electrical and Thermal Properties of n-Type Cu0.008Bi2Te2.7Se0.3 Alloys." Materials 12, no. 24 (2019): 4080. http://dx.doi.org/10.3390/ma12244080.

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Doping is known as an effective way to modify both electrical and thermal transport properties of thermoelectric alloys to enhance their energy conversion efficiency. In this project, we report the effect of Pd doping on the electrical and thermal properties of n-type Cu0.008Bi2Te2.7Se0.3 alloys. Pd doping was found to increase the electrical conductivity along with the electron carrier concentration. As a result, the effective mass and power factors also increased upon the Pd doping. While the bipolar thermal conductivity was reduced with the Pd doping due to the increased carrier concentrati

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Khalilov, S. "INFLUENCE OF HEAT TREATMENT ON THERMAL AND ELECTRICAL PROPERTIES OF POLYMER SEMICONDUCTOR POLYHYDROCHYNONE." Slovak international scientific journal, no. 84 (June 12, 2024): 74–76. https://doi.org/10.5281/zenodo.11624509.

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The study showed that a higher heat treatment temperature provides a more dense packing of macromolecules, changing the intermolecular distances and contact conditions between molecules. This leads to an increase in the effective conjugation length, due to the improvement in the heat treatment process of conditions for the coplanarity of macromolecules.

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