OXYGEN TRANSPORT CERAMIC MEMBRANES

Bandopadhyay, Dr. Sukumar ; Nagabhushana, Dr. Nagendra

National Energy Technology Laboratory (U.S.)

关键词: Mechanical Properties;    Perovskite;    Membranes;    Oxygen;    Separation Processes;   

DOI  :  10.2172/795773
RP-ID  :  FC26-99FT40054--08
RP-ID  :  FC26-99FT40054
RP-ID  :  795773

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report covers the following tasks: Task 1--Design, fabricate and evaluate ceramic to metal seals based on graded ceramic powder/metal braze joints; Task 2--Evaluate the effect of defect configuration on ceramic membrane conductivity and long term chemical and structural stability; Task 3--Determine materials mechanical properties under conditions of high temperatures and reactive atmospheres; Task 4--Evaluate phase stability and thermal expansion of candidate perovskite membranes and develop techniques to support these materials on porous metal structures; Task 5--Assess the microstructure of membrane materials to evaluate the effects of vacancy-impurity association, defect clusters, and vacancy-dopant association on the membrane performance and stability; and Task 6--Measure kinetics of oxygen uptake and transport in ceramic membrane materials under commercially relevant conditions using isotope labeling techniques.