Abstract
Oxygen isotope diffusion coefficient, D *, of La0.6Sr0.4Co0.2Fe0.8O3-δ (LSCF6428) was measured as a function of p(O2) and temperature. Vacancy diffusion coefficient, D V, was calculated from D * and reported values of oxygen nonstoichiometry, δ. There was little dependence of D V on δ or p(O2) while D V by conductivity relaxation method was reported to drastically decrease with decreasing p(O2) below 10-2 bar. The absolute values of D V in this study were about an order of magnitude larger than those by conductivity relaxation method.
Full Text 
Sign-in/Register to access full text options
Sign-in/Register to access full text options 
Published version (
Free)
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
