scholarly journals Low Temperature Heat Capacity and Thermal Expansion of KCI Containing a Low Concentration of Li+

1987 ◽  
Vol 40 (1) ◽  
pp. 65 ◽  
Author(s):  
JG Collins ◽  
SJ Collocott ◽  
RJ Tainsh ◽  
C Andrikidis ◽  
GK White
Keyword(s):  
Heat Capacity ◽  
Thermal Expansion ◽  
Linear Thermal Expansion Coefficient ◽  
Linear Thermal Expansion ◽  
Quantitative Agreement ◽  
Impurity Contribution ◽  
Temperature Heat ◽  
Cationic Site ◽  
Splitting Parameter ◽  
Low Temperature Heat Capacity

The linear thermal expansion coefficient a from 180 mK to 36 K and the heat capacity per gram cp from 0�5 to 10 Kare reported for KCl containing approximately 100 ppm Li+. Contributions to a and cp attributable to the impurity have been identified and analysed on the basis of a model in which the Li + ions reside about 0�05 nm from the equilibrium cationic site in any of the (111) directions. There is consistent quantitative agreement with a Schottky-like term that arises from the eightfold degeneracy of the level splitting; the splitting parameter is 1� 5 K. The large (- 160) Grtineisen parameter associated with the impurity contribution is evidence for a quantum-mechanical tunnelling process, and agrees with values derived from independent measurements of the spectroscopic and dielectric responses of this system under pressure.

scholarly journals Thermal Properties of Stabilized Zirconia at Low Temperatures

1985 ◽  
Vol 38 (4) ◽  
pp. 617 ◽  
Author(s):  
JG Collins ◽  
SJ Collocott ◽  
GK White
Keyword(s):  
Heat Capacity ◽  
Thermal Expansion ◽  
Thermal Properties ◽  
Thermal Expansion Coefficient ◽  
Expansion Coefficient ◽  
Low Temperatures ◽  
Linear Thermal Expansion Coefficient ◽  
Linear Thermal Expansion ◽  
Stabilized Zirconia ◽  
Elastic Data

The linear thermal expansion coefficient a from 2 to 100 K and heat capacity per gram cp from 0�3 to 30 K are reported for fully-stabilized zirconia containing a nominal 16 wt.% (9 mol.%) of yttria. The heat capacity below 7 K has been analysed into a linear (tunnelling?) term, a Schottky term centred at 1�2 K, a Debye term (e~ = 540 K), and a small T5 contribution. The expansion coefficient is roughly proportional to T from 5 to 20 K and gives a limiting lattice Griineisen parameter 'Yo ::::: 5, which agrees with that calculated from elastic data.

scholarly journals Mechanical, Hygric and Thermal Properties of Flue Gas Desulfurization Gypsum

10.14311/626 ◽  
2004 ◽  
Vol 44 (5-6) ◽  
Author(s):  
P. Tesárek ◽  
J. Drchalová ◽  
J. Kolísko ◽  
P. Rovnaníková ◽  
R. Černý
Keyword(s):  
Thermal Conductivity ◽  
Heat Capacity ◽  
Thermal Expansion ◽  
Flue Gas ◽  
Linear Thermal Expansion Coefficient ◽  
Linear Thermal Expansion ◽  
Moisture Diffusivity ◽  
Flue Gas Desulfurization ◽  
Volumetric Heat Capacity ◽  
Reference Measurements

The reference measurements of basic mechanical, thermal and hygric parameters of hardened flue gas desulfurization gypsum are carried out. Moisture diffusivity, water vapor diffusion coefficient, thermal conductivity, volumetric heat capacity and linear thermal expansion coefficient are determined with the primary aim of comparison with data obtained for various types of modified gypsum in the future. 

Low-temperature heat capacity and thermal expansion of synthetic caracolite Na3Pb2(SO4)3Cl

2014 ◽  
Vol 596 ◽  
pp. 1-5 ◽  
Author(s):  
A.V. Knyazev ◽  
E.N. Bulanov ◽  
N.N. Smirnova ◽  
V.Zh. Korokin ◽  
A.N. Shushunov ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Thermal Expansion ◽  
Low Temperature ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity

Dynamics and magnetic properties of NO molecules encapsulated in open-cage fullerene derivatives evidenced by low temperature heat capacity

2021 ◽  
Author(s):  
Yoji Horii ◽  
Hal Suzuki ◽  
Yuji Miyazaki ◽  
Motohiro Nakano ◽  
Shota Hasegawa ◽  
...  
Keyword(s):  
Heat Capacity ◽  
Magnetic Properties ◽  
Low Temperature ◽  
Magnetic Anisotropy ◽  
Fullerene Derivatives ◽  
Molecular Cages ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity

Heat capacity analyses revealed dynamics and magnetic anisotropy of NO molecules confined in molecular cages.

Low-temperature heat capacity and thermodynamic properties of endo-Tricyclo[5.2.1.02,6]decane

2003 ◽  
Vol 35 (12) ◽  
pp. 1897-1903 ◽  
Author(s):  
Li-Guo Kong ◽  
Zhi-Cheng Tan ◽  
Jie Xu ◽  
Shuang-He Meng ◽  
Xin-He Bao
Keyword(s):  
Heat Capacity ◽  
Low Temperature ◽  
Thermodynamic Properties ◽  
Temperature Heat ◽  
Low Temperature Heat Capacity
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