Electrical Resistivity Archives

High-electrical-resistivity thermally-conductive phase change materials prepared by adding nanographitic fillers into paraffin

Author(s): Bo-Rong Wu, Chia-Hung Wu, Chia-Wei Liao, Ming-Der Ger, Nen-Wen Pu, Yih-Ming Liu

Pristine and modified exfoliated graphite nanoplatelets (xGnPs and M-xGnPs, respectively) were dispersed into a paraffin wax phase change material (PCM) in an effort to raise the thermal conductivity of the ...

Keywords: Electrical Resistivity, Fillers, graphite, pcms, phase change materials, Praffin Wax, Raman Spectroscopy, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Thermal Conductivity, Transient Plane Heat Source Method, X-Ray Photoelectron Spectrometer, X-Ray Photoelectron Spectrometer (XPS), XPS

Effects of Reaction Temperature on Thermoelectric Properties of p-Type Nanostructured Bi2−x Sb x Te3 Prepared Using Hydrothermal Method and Evacuated-and-Encapsulated Sintering

Author(s): Chia-Jyi Liu, Hsin -Chang Lai, Liang-Ru Chen, Yen-Liang Liu, Yi-Yan Zou

Bi2-xSbxTe3 thermoelectric materials, where x = 1.52 and 1.55 were prepared and evaluated for their thermoelectric properties. Three samples in total were prepared, two with x = 1.52 and 1.55 were synthesized at 140oC and ...

Keywords: Electrical Resistivity, Thermal Conductivity, Thermoelectric Materials, Thermopower, Transient Plane Source Technique, X-ray Diffraction, X-ray diffraction (XRD), XRD

The effects of Si doping on the thermoelectric and magnetic properties of Ca0.98Bi0.02Mn1−xSixO3−delta with x = 0.00, 0.02 and 0.03

Author(s): Ankam Bhaskar, Chia-Jyi Liu, J. J. Yuan

Single phase, orthohombic structured Ca0.98Bi0.02Mn1−xSixO3−delta (x = 0.00, 0.02 and 0.03) samples were prepared using solid state reaction. The authors investigated whether they could improve the thermoelectric properties of the ...

Keywords: bismuth, Electrical Resistivity, Figure of Merit, Magnetic Properties, Neel temperature, silicon doping, Thermal Conductivity, Thermopower

Composition Control and Thermoelectric Properties of Quaternary Chalcogenide Nanocrystals: The Case of Stannite Cu2CdSnSe4

Author(s): Alejandro Perez-Rodriguez, Alejandro Pérez-Rodríguez, Alexey Shavel, Andreu Cabot, Andrew Fairbrother, Doris Cadavid, Joan Daniel Prades, Joan Ramon Morante, Jordi Arbiol, Maria Ibanez, Nuria Garcia-Castello, Nuria García-Castelló, Reza Zamani, Victor Izquierdo-Roca, Wenhua Li

The authors present a method of producing Cu2CdSnSe4 quaternary nanocrystals using a colloidal synthesis route that could be used for future industrial synthesis. The nanocrystals prepared showed great potential ...

Keywords: Copper, EDX, Electrical Resistivity, Energy Dispersive X-Ray, Energy Dispersive X-Ray (EDX), Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), Seebeck coefficient, SEM, TEM, Thermal Conductivity, Thermoelectric Materials, TPS, transient plane source method, Transient Plane Source Method (TPS), Transmission electron microscopy, Transmission electron microscopy (TEM), UV-Vis, X-ray Diffraction, X-ray diffraction (XRD), XRD

The Effect of Cu2O Nanoparticle Dispersion on the Thermoelectric Properties of n-type Skutterudites

Author(s): B. Priyadarshini, D. Sivaprahasam, M. Battabyal, N. S. Karthiselva, R. Gopalan

This article studies the effect of dispersion of Cu2O nanoparticles on the thermoelectric properties of Ba0.4Co4Sb12 and Sn0.4Ba0.4Co4Sb12 skutterudites. It was found that the ...

Keywords: Electrical Resistivity, High-Resolution Transmission Electron Microscopy (TEM), High-Resolution Transmission Electron MicroscopyTEM, n-type Skutterudites, Nanoindentation Experiments, Nanoparticles, Spark Plasma Sintering, Spark Plasma Sintering (SPS), SPS, Thermoelectric Properties, Thermopower, Transient Plane Source Technique, X-ray Diffraction, X-ray diffraction (XRD), XRD

Thermal conductivity and electrical resistivity of the Y- and Er-substituted 1:2:3 superconducting compounds in the vicinity of the transition temperature

Author(s): A. Maqsood, B. M. Suleiman, E. Karawacki, I. Ul-Haq

A series of Er and Y sintered compounds were prepared and were subsequently tested for their thermal conductivity and electrical resistivity. The transient plane source (TPS) technique was used for ...

Keywords: Bardeen-Rickayzen-Tewordt, Bardeen-Rickayzen-Tewordt (BRT) Theory, BRT, Electrical Resistivity, porosity, Sintered Compounds, Superconductors, theory, Thermal Conductivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method, Wiedeman-Franz Law

Enhanced thermoelectric performance of compacted Bi0.5Sb1.5Te3 nanoplatelets with low thermal conductivity

Author(s): Chia-Jyi Liu, Gao-Jhih Liu, Liang-Ru Chen, Yen-Liang Liu

A series of compacted Bi0.5Sb1.5Te3 nanoplatelets are synthesized using hydrothermal methods, followed by cold pressing and sintering at temperatures between 300°C and 380°C. A variety of thermal, mechanical ...

Keywords: AFM, Atomic Force Microscope, Atomic Force Microscope (AFM), Cold Pressing, EDX, Electrical Resistivity, Energy Dispersive X-Ray, Energy Dispersive X-Ray (EDX) Spectrometry, FE-SEM, Field Emission Scanning Electron Microscopy, Field Emission Scanning Electron Microscopy (FE-SEM), Figure of Merit, Figure of Merit (ZT), Hydrothermal Method, Materials, Powder X-Ray Diffraction, Powder X-Ray Diffraction (XRD), Power Factor, Seebeck Voltage, Sintering Temperature, Spectrometry, TE, TEM, Temperature, Thermal Conductivity, Thermoelectric, Thermoelectric (TE) Materials, TPS Method, Transient Plane Source, Transient plane source (TPS) method, Transmission electron microscopy, Transmission electron microscopy (TEM), XRD, ZT

Transient hot-strip method for measuring thermal conductivity and specific heat of solids and fluids: Second order theory and approximations for short times

Author(s): Abbas J. Hamdani, Asghari Maqsood, Kamaluddin Ahmed

Describes how second-order terms are important to the hot-strip method, and should be included in situations where a high-current pulse is being used. The authors determined approximate values for the ...

Keywords: Electrical Resistivity, Measurement of Thermal Conductivity, specific heat capacity, Thermal Conductivity, Thermal Diffusivity, Transient Hot-Strip Method

Thermal Properties of the Hybrid Graphene-Metal NanoMicro-Composites: Applications in Thermal Interface Materials

Author(s): Alexander A. Balandin, Vivek Goyal

As electronic devices become smaller, power densities increase and so do hotspot temperatures, leading to a need for materials that can exchange heat better. The materials that facilitate this heat ...

Keywords: Advanced Electronics, Advanced Electronics and Optoelectronics, Density Gradient Ultra-Centrifugation, Density Gradient Ultra-Centrifugation (DGU), DGU, EDS, Electrical Resistivity, Electron Dispersive Spectroscopy, Electron Dispersive Spectroscopy (EDS), Epoxy, graphene, Optoelectronics, Patterns, SAED, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), Selected-Area Electron-Diffraction, Selected-Area Electron-Diffraction (SAED) Patterns, SEM, TEM, Thermal Conductivity, thermal interface materials, TIMs, TPS, Transient Plane Source, Transient plane source (TPS) method, Transmission Electron Miscoscopy, Transmission Electron Miscoscopy (TEM), Ultrasonication

Keyword: Electrical Resistivity

High-electrical-resistivity thermally-conductive phase change materials prepared by adding nanographitic fillers into paraffin

Effects of Reaction Temperature on Thermoelectric Properties of p-Type Nanostructured Bi2−x Sb x Te3 Prepared Using Hydrothermal Method and Evacuated-and-Encapsulated Sintering

The effects of Si doping on the thermoelectric and magnetic properties of Ca0.98Bi0.02Mn1−xSixO3−delta with x = 0.00, 0.02 and 0.03

Composition Control and Thermoelectric Properties of Quaternary Chalcogenide Nanocrystals: The Case of Stannite Cu2CdSnSe4

The Effect of Cu2O Nanoparticle Dispersion on the Thermoelectric Properties of n-type Skutterudites

Thermal conductivity and electrical resistivity of the Y- and Er-substituted 1:2:3 superconducting compounds in the vicinity of the transition temperature

Enhanced thermoelectric performance of compacted Bi0.5Sb1.5Te3 nanoplatelets with low thermal conductivity

Transient hot-strip method for measuring thermal conductivity and specific heat of solids and fluids: Second order theory and approximations for short times

Thermal Properties of the Hybrid Graphene-Metal NanoMicro-Composites: Applications in Thermal Interface Materials

Search Paper Database

Demonstration Corner

Laboratory Instruments

Portable Meters