Thermal Expansion and Specific Heat of Tungsten Oxide at High Temperatures

1951 ◽  
Vol 84 (5) ◽  
pp. 1054-1055 ◽  
Author(s):  
Shozo Sawada ◽  
Rinjiro Ando ◽  
Shoichiro Nomura
Keyword(s):  
Thermal Expansion ◽  
Specific Heat ◽  
Tungsten Oxide ◽  
High Temperatures

Specific Heat and Thermal Expansion at High Temperatures of Si and Ge

1987 ◽  
Vol 142 (1) ◽  
pp. K13-K17 ◽  
Author(s):  
H. Matsuokagaya ◽  
N. Shoji ◽  
T. Soma
Keyword(s):  
Thermal Expansion ◽  
Specific Heat ◽  
High Temperatures

scholarly journals The Thermal Expansion of Solids

1959 ◽  
Vol 12 (3) ◽  
pp. 237 ◽  
Author(s):  
GC Fletcher
Keyword(s):  
Thermal Expansion ◽  
Sodium Chloride ◽  
Equation Of State ◽  
Specific Heat ◽  
High Temperatures ◽  
Isothermal Compressibility ◽  
Constant Volume ◽  
Normal Vibrations ◽  
Ionic Solid ◽  
Theory And Experiment

From the theory of normal vibrations of a lattice, a practical means of obtaining the equation of state of an ionic solid is developed from which the thermal expansion can be derived. Using previous work by Kellermann, application is made to the case of sodium chloride and the results compared with experiment. Possible reasons for the discrepancy between theory and experiment, which is very large at 'high temperatures, are discussed. The variation with temperature of the specific heat at constant volume and the isothermal compressibility are also investigated.

scholarly journals Dense Si3N4 and SiC: Some Critical Properties for Gas Turbine Application

1972 ◽  
Author(s):  
F. F. Lange
Keyword(s):  
Thermal Conductivity ◽  
Thermal Expansion ◽  
Physical Properties ◽  
Specific Heat ◽  
Gas Turbine ◽  
High Temperatures ◽  
Thermal Stresses ◽  
Poisson's Ratio ◽  
Critical Properties ◽  
Property Data

Both Si3N4 and SiC in their dense forms are leading candidate ceramics for gas turbine components because of their unique physical properties that minimize the thermal stresses which develop during gas turbine operation and their ability to resist oxidation at high temperatures. The purpose of this paper is to present current property data for both materials that are required to calculate thermal stresses, i.e., strength, Young’s modulus, Poisson’s ratio, thermal expansion, thermal conductivity, and specific heat.

Investigation of the Thermodynamic Properties of Anharmonic Crystals with Defects and Influence of Anharmonicity in Exafs by the Moment Method

1998 ◽  
Vol 12 (02) ◽  
pp. 191-205 ◽  
Author(s):  
Vu Van Hung ◽  
Nguyen Thanh Hai
Keyword(s):  
Thermal Expansion ◽  
Thermodynamic Properties ◽  
Phase Change ◽  
Specific Heat ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Moment Method ◽  
Adiabatic Compressibility ◽  
Relative Displacement ◽  
The Moment

By the moment method established previously on the basis of the statistical mechanics, the thermodynamic properties of a strongly anharmonic face-centered and body-centered cubic crystal with point defect are considered. The thermal expansion coefficient, the specific heat Cv and Cp, the isothermal and adiabatic compressibility, etc. are calculated. Our calculated results of the thermal expansion coefficient, the specific heat Cv and Cp… of W, Nb, Au and Ag metals at various temperatures agrees well with the measured values. The anharmonic effects in extended X-ray absorption fine structure (EXAFS) in the single-shell model are considered. We have obtained a new formula for anharmonic contribution to the mean square relative displacement. The anharmonicity is proportional to the temperature and enters the phase change of EXAFS. Our calculated results of Debye–Waller factor and phase change in EXAFS of Cu at various temperatures agrees well with the measured values.

Thermal expansion anomalies at high temperatures near stoichiometric Zn4Sb3 composition

2007 ◽  
Vol 436 (1-2) ◽  
pp. 65-68 ◽  
Author(s):  
Go Nakamoto ◽  
Keisuke Kinoshita ◽  
Makio Kurisu
Keyword(s):  
Thermal Expansion ◽  
High Temperatures

Thermal expansion and specific heat of intermediate valent YbCuAl

1981 ◽  
Vol 44 (1-2) ◽  
pp. 17-24 ◽  
Author(s):  
R. Pott ◽  
R. Schefzyk ◽  
D. Wohlleben ◽  
A. Junod
Keyword(s):  
Thermal Expansion ◽  
Specific Heat ◽  
Intermediate Valent
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