Thermodynamic and Transport Properties of Some Disaccharides in Aqueous Ammonium Sulfate Solutions at Various Temperatures

2008 ◽  
Vol 53 (8) ◽  
pp. 1713-1724 ◽  
Author(s):  
Parampaul K. Banipal ◽  
Vickramjeet Singh ◽  
Gurpreet Kaur ◽  
Mandeep Kaur ◽  
Tarlok S. Banipal
Keyword(s):  
Transport Properties ◽  
Ammonium Sulfate ◽  
Sulfate Solutions ◽  
Thermodynamic And Transport Properties

Interpreting equilibrium-conductivity and conductivity-relaxation measurements to establish thermodynamic and transport properties for multiple charged defect conducting ceramics

2015 ◽  
Vol 182 ◽  
pp. 49-74 ◽  
Author(s):  
Huayang Zhu ◽  
Sandrine Ricote ◽  
W. Grover Coors ◽  
Robert J. Kee
Keyword(s):  
Transport Properties ◽  
Material Properties ◽  
Ceramic Materials ◽  
Barium Zirconate ◽  
Charged Defect ◽  
Conductivity Measurements ◽  
Conductivity Relaxation ◽  
Kinetics Parameters ◽  
Relaxation Measurements ◽  
Thermodynamic And Transport Properties

A model-based interpretation of measured equilibrium conductivity and conductivity relaxation is developed to establish thermodynamic, transport, and kinetics parameters for multiple charged defect conducting (MCDC) ceramic materials. The present study focuses on 10% yttrium-doped barium zirconate (BZY10). In principle, using the Nernst–Einstein relationship, equilibrium conductivity measurements are sufficient to establish thermodynamic and transport properties. However, in practice it is difficult to establish unique sets of properties using equilibrium conductivity alone. Combining equilibrium and conductivity-relaxation measurements serves to significantly improve the quantitative fidelity of the derived material properties. The models are developed using a Nernst–Planck–Poisson (NPP) formulation, which enables the quantitative representation of conductivity relaxations caused by very large changes in oxygen partial pressure.

Sign in / Sign up

Export Citation Format

Share Document