Thermal Conductivity of Orientationally-Disordered Crystals under High Pressure

1983 ◽  
pp. 527-536
Author(s):  
P. Andersson ◽  
R. G. Ross ◽  
G. Bäckström
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
Disordered Crystals

scholarly journals The thermal conductivity of the Earth's core and implications for its thermal and compositional evolution

2020 ◽  
Author(s):  
Kenji Ohta ◽  
Kei Hirose
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
Thermal History ◽  
Diamond Anvil Cell ◽  
High Pressures ◽  
Iron Alloys ◽  
Compositional Evolution ◽  
The Earth ◽  
Diamond Anvil ◽  
High Pressures And Temperatures

Abstract Precise determinations of the thermal conductivity of iron alloys at high pressures and temperatures are essential for understanding the thermal history and dynamics of the metallic cores of the Earth. We review relevant high-pressure experiments using a diamond-anvil cell and discuss implications of high core conductivity for its thermal and compositional evolution.

HPHT synthesis and enhanced TE performance of Te and Sn/Se elements binary-doped CoSb3

2019 ◽  
Vol 12 (01) ◽  
pp. 1850105 ◽  
Author(s):  
Hairui Sun ◽  
Pin Lv ◽  
Chao Wang ◽  
Yunxian Liu ◽  
Xiaopeng Jia ◽  
...  
Keyword(s):  
Experimental Data ◽  
Thermal Conductivity ◽  
High Pressure ◽  
High Temperature ◽  
Seebeck Coefficient ◽  
Grain Boundaries ◽  
Preparation Methods ◽  
Synthesis Time ◽  
Lattice Disorder ◽  
Positive Effect

A series of binary-doped CoSb3 with Te and Se/Sn bulk compounds Co4Sb[Formula: see text]TexSny/Sey ([Formula: see text] and 0.6, [Formula: see text] and 0.3), have been successfully prepared via a simple high pressure and high-temperature (HPHT) method. And, the influence of the doping elements on the microstructure of the samples synthesized under diverse pressures and the corresponding TE performance were studied in detail. Comparing with other preparation methods, the synthesis time of HPHT was acutely shortened. The obtained samples contain more grain boundaries, lattice disorder, dislocations and the possible “nanodot”, which have positive effect on reducing thermal conductivity. The experimental data indicate that the absolute values of Seebeck coefficient increases with pressure. What’s more, the thermal conductivities show a monotone decreasing trend as the synthesis pressure rises. The minimum value obtained is 1.93[Formula: see text]Wm[Formula: see text]K[Formula: see text] at normal temperature for Co4Sb[Formula: see text]Te[Formula: see text]Se[Formula: see text] prepared under 3[Formula: see text]GPa.

scholarly journals Thermal Conductivity of Aqueous Sugar Solutions under High Pressure

2007 ◽  
Vol 28 (4) ◽  
pp. 1427-1427
Author(s):  
M. Werner ◽  
A. Baars ◽  
F. Werner ◽  
C. Eder ◽  
A. Delgado
Keyword(s):  
Thermal Conductivity ◽  
High Pressure

RHEINFELDEN CASTASIL-21

Alloy Digest ◽  
2021 ◽  
Vol 70 (5) ◽  
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
Corrosion Resistance ◽  
Physical Properties ◽  
Tensile Properties ◽  
Die Casting ◽  
Heat Treating ◽  
Silicon Iron ◽  
High Pressure Die Casting ◽  
Pressure Die Casting

Abstract Rheinfelden Castasil-21 (Ci-21, AlSi9Sr) is an aluminum-silicon-iron-strontium high pressure die casting (HPDC) alloy. It was developed by Rheinfelden Alloys GmbH and Co. KG for castings that require an outstanding combination of electrical and/or thermal conductivity. This datasheet provides information on composition, physical properties, hardness, elasticity, and tensile properties. It also includes information on corrosion resistance as well as casting, heat treating, machining, and joining. Filing Code: Al-476. Producer or source: Rheinfelden Alloys GmbH.

Fabrication of β-Si3N4 with high thermal conductivity under ultra-high pressure

2018 ◽  
Vol 44 (18) ◽  
pp. 23288-23292 ◽  
Author(s):  
Jia Hongsheng ◽  
Li Jiaqi ◽  
Niu Rui ◽  
Ye Chaochao ◽  
Ru Hongqiang ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
High Pressure ◽  
High Thermal Conductivity ◽  
Ultra High Pressure
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