Latest content added for UNT Digital Libraryhttps://digital.library.unt.edu/search/?t=fulltext&fq=str_month%3A04_apr&display=grid&sort=date_d2015-10-19T19:39:04-05:00UNT LibrariesThis is a custom feed for searching UNT Digital LibraryOxygen Transport Ceramic Membranes Quarterly Report2015-10-19T19:39:04-05:00https://digital.library.unt.edu/ark:/67531/metadc738265/<p><a href="https://digital.library.unt.edu/ark:/67531/metadc738265/"><img alt="Oxygen Transport Ceramic Membranes Quarterly Report" title="Oxygen Transport Ceramic Membranes Quarterly Report" src="https://digital.library.unt.edu/ark:/67531/metadc738265/small/"/></a></p><p>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.</p>