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Keyword: X-ray diffraction (XRD)

Total Papers Found: 40

Preparation of low-density polyethylene/low-temperature expandable graphite composites with high thermal conductivity by an in situ expansion melt blending process

Author(s): Canhui Lu, Hejun Wu, Wei Zhang, Xinxing Zhang

Low-temperature expandable graphite (LTEG) was blended into low-density polyethylene (LDPE) to prepare composite materials with an enhanced thermal conductivity in comparison to pure LDPE. The thermal conductivity of a composite ...

Keywords: differential scanning calorimetry, Differential scanning calorimetry (DSC), DSC, Electrical Conductivity, graphite, LDPE, mechanical properties, Polymer composites, Rheological Measurements, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, TGA, Thermal Conductivity, Thermogravimetric Analysis, Thermogravimetric analysis (TGA), X-ray Diffraction, X-ray diffraction (XRD), XRD

Effects of inclusion size on thermal conductivity and rheological behavior of ethylene glycol-based suspensions containing silver nanowires with various specific surface areas

Author(s): Hai Lu, Li-Wu Fan, Qing Ding, Xin Fang, Zi-Tao Yu

The effects of silver nanowire size on the thermal conductivities of ethylene glycol-based nanofluids were investigated experimentally. The effects of altering the loading concentration of nanowires, and altering the temperature ...

Keywords: Nanofluids, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, TEM, Thermal Conductivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method, Transmission electron microscopy, Transmission electron microscopy (TEM), X-ray Diffraction, X-ray diffraction (XRD), XRD

Effective thermal conductivity and diffusivity of GeSeSb glasses measured simultaneously as a function of temperature and fit to empirical equations

Author(s): Anusaiya Kaswan, Dinesh Patidar, K. B. Sharma, Kananbala Sharma, N. S. Saxena, Vandana Kumari

The effective thermal conductivity and thermal diffusivity was measured for chalcogenide glass samples of the formulation Ge30-xSe70Sbx (x = 10, 15, 20, 25). It was found that both the effective thermal conductivity and ...

Keywords: Chalcogenide Glasses, Effective Thermal Conductivity, Effective Thermal Diffusivity, glass, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, TPS, Transient Plane Source, Transient plane source (TPS) method, X-ray Diffraction, X-ray diffraction (XRD), XRD

Low-temperature thermoelectric characteristics of Ca32xYbxCo3.95Ga0.05O9+d (0 < x < 0.10)

Author(s): Ankam Bhaskar, Chia-Jyi Liu, Y.-C. Huang

The thermoelectric properties of Ca3-xYbxCo3.95Ga0.05O9+delta where x = 0.00, 0.02, 0.05, and 0.10 were determined at temperatures less than 300 K. It was determined that the partial substitution of Yb3+ for ...

Keywords: electrical resistance, Iodometric Titration, Thermal Conductivity, Thermoelectric Materials, Thermopower, Transient Plane Source Technique, X-ray Diffraction, X-ray diffraction (XRD), XRD

High temperature thermoelectric properties of co-doped Ca3−xAgxCo3.95Fe0.05O9+delta (0

Author(s): Ankam Bhaskar, Chia-Jyi Liu, Zong-Ren Yang

The thermoelectric properties of the co-doped misfit-layered cobaltites of Ca3-xAgxCo3.95Fe0.05O9+delta (x=0.0, 0.1, 0.2, 0.3) were investigated at temperatures between 300 and 700 K. It was found that the thermopower increased ...

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

Thermal transport, thermomechanical, and dielectric properties of chalcogenide Se98–xAg2Inx (x = 0, 2, 4, 6) system

Author(s): C. Dohare, N. Mehta

The influence of In content in the Se98-xAg2Inx (x = 0, 2, 4, 6) system of chalcogenide glasses on the physical properties of the glasses were investigated by the authors. The maximum thermal ...

Keywords: Chalcogenide Glasses, Dielectric Measurements, differential scanning calorimetry, Differential scanning calorimetry (DSC), DSC, Effective Thermal Diffusivity, glass, Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Thermal Conductivity, Transient Plane Source Technique, Vickers Hardness, X-ray Diffraction, X-ray diffraction (XRD), XRD

Study on effective thermal conductivity of zinc sulphide/poly(methyl methacrylate) nanocomposites

Author(s): N. S. Saxena, Sonalika Agarwal, Vipin Kumar

Zinc sulfide nanoparticles were embedded in a poly(methyl methacrylate) matrix to prepare a nanocomposite polymer with a higher thermal conductivity than the pure polymer. It was determined by TEM ...

Keywords: Fillers, nanocomposites, Nanoparticles, Polymer composites, TEM, Thermal Conductivity, TPS Technique, Transient Plane Source, Transient plane source (TPS) method, Transmission electron microscopy, Transmission electron microscopy (TEM), X-ray Diffraction, X-ray diffraction (XRD), XRD

Measurement of Thermal Transport Properties in Metal Doped Polypyrrole

Author(s): K. B. Sharma, Kananbala Sharma, N. S. Saxena, Rashmi Saxena, Thaneshwar P. Sharma, Vinodini Shaktawat

Metal doping of a polypyrrole matrix was carried out. Nickel and Cobalt were the two metals that were used in this study, and three samples were prepared, one containing 100% Co, ...

Keywords: composites, Conjugated Polymers, EDX, Energy Dispersive X-Ray Fluorescence, Energy Dispersive X-Ray Fluorescence (EDX), Scanning Electron Microscopy, Scanning Electron Microscopy (SEM), SEM, Thermal Conductivity, Thermal Diffusivity, TPS Method, Transient Plane Source, Transient plane source (TPS) method, X-ray Diffraction, X-ray diffraction (XRD), XRD

Thermoelectric Properties of Ca1−xGdxMnO3−delta (0.00, 0.02, and 0.05) Systems

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

The thermoelectric properties of the Ca1-xGdxMnO3-delta system where x= 0.00, 0.02, and 0.05 were evaluated. It was determined that the sample with the lowest electrical resistivity was the Ca0.95Gd0.05MnO3...

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