Thermal Diffusion and Partial Molar Enthalpy Variations ofn-Butane in Silicalite-1

2008 ◽  
Vol 112 (47) ◽  
pp. 14937-14951 ◽  
Author(s):  
I. Inzoli ◽  
J. M. Simon ◽  
D. Bedeaux ◽  
S. Kjelstrup
Keyword(s):  
Thermal Diffusion ◽  
Molar Enthalpy ◽  
Partial Molar Enthalpy

Dilute Solution of H in bcc Ti35Cr65-xVx Alloys

2007 ◽  
Vol 1042 ◽  
Author(s):  
Giovanni Mazzolai
Keyword(s):  
Configurational Entropy ◽  
Molar Enthalpy ◽  
Partial Molar Enthalpy ◽  
Solution Phase ◽  
Solid Solution Phase ◽  
Dilute Solution ◽  
Α Phase ◽  
Image Position ◽  
Temperature Surface ◽  
Gas Pressures

AbstractThe solubility of H in the solid solution phase of the Ti35Cr47V18 alloy has been investigated at high and low temperature. The Sieverts law has been found to hold for 808 K≤T≤1204 K and fail for 302 K≤T≤335 K. For H contents nH ≤0.07 (nH=H/Me) the partial molar enthalpy and partial non-configurational entropy at high temperature are:On heating the material under H2 gas pressures lower than 0.1 MPa H absorption only occurs above 700 K. Below this temperature, surface oxide films prevent H uptake. Thermal decomposition spectroscopy of the α phase carried out for nH≤0.24 exhibits a single peak whose temperature increases with decreasing nH owing to selective occupancy by H of energetically non-degenerate interstitial sites.

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