Effect of High-Temperature Treatment on Carbon-Carbon Composite Material X-Ray Structural Properties and Thermal Conductivity

2013 ◽  
Vol 54 (4) ◽  
pp. 319-323 ◽  
Author(s):  
M. Yu. Bamborin ◽  
D. V. Yartsev ◽  
S. A. Kolesnikov
Keyword(s):  
Thermal Conductivity ◽  
Composite Material ◽  
High Temperature ◽  
Structural Properties ◽  
Carbon Composite ◽  
Temperature Treatment ◽  
High Temperature Treatment ◽  
X Ray ◽  
Carbon Composite Material

Synthesis, Structure and Dielectric Properties of Na2SnTeO6

1998 ◽  
Vol 547 ◽  
Author(s):  
J.-H. Park ◽  
P.M. Woodward ◽  
J.B. Parise ◽  
I. Lubomirsky ◽  
O. Stafsudd
Keyword(s):  
Dielectric Constant ◽  
High Pressure ◽  
High Temperature ◽  
Dielectric Properties ◽  
Temperature Treatment ◽  
High Temperature Treatment ◽  
Powder Diffraction Data ◽  
Ambient Conditions ◽  
X Ray ◽  
High Pressure High Temperature

AbstractA new perovskite was recovered from the high pressure-high temperature treatment of the α-TlSbO3 form of Na2SnTeO6 at 7 GPa and 950 °C for 30 minutes. Synchrotron x-ray powder diffraction data show the space group is P21/n with a=5.40361 (5), b=5.46152(5), c=7.69288(7) Å and ß=90.034(3)°. Using disk samples of both polymorphs, the dielectric properties were measured as a function of temperature. At ambient conditions, the perovskite form has a more than 1.5 fold enhancement in dielectric constant compared to the α-TlSbO3 form while the molar volume and the molecular polarizability decrease.

scholarly journals Preparation of chrome-tanned leather shaving-based hierarchical porous carbon and its capacitance properties

RSC Advances ◽  
2019 ◽  
Vol 9 (32) ◽  
pp. 18333-18343 ◽  
Author(s):  
Fei Ma ◽  
Shaolan Ding ◽  
Huijun Ren ◽  
Piaolin Peng
Keyword(s):  
Composite Material ◽  
High Temperature ◽  
Chromium Oxide ◽  
Porous Carbon ◽  
Carbon Composite ◽  
Hierarchical Porous Carbon ◽  
Chrome Oxide ◽  
Hierarchical Porous ◽  
Carbon Composite Material

A chromium oxide-carbon composite material was formed by the high-temperature carbonization of chromium-tanned leather shavings, followed by the leaching of chrome oxide and activation by KOH.

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