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Can I read Oxygen transport in La1−xSrxMn1−yCoyO3±δ perovskites: Part I. Oxygen tracer diffusion on EtoBox?
Oxygen transport in La1−xSrxMn1−yCoyO3±δ perovskites: Part I. Oxygen tracer diffusion by R.A. De Souza; J.A. Kilner is a Materials Science article available to read on EtoBox.
What is Oxygen transport in La1−xSrxMn1−yCoyO3±δ perovskites: Part I. Oxygen tracer diffusion about?
Oxygen tracer diffusion coefficients of selected compositions in the La Sr Mn Co O perovskite oxide system 12x x 12y y 3 6 d 18 16 have been measured by means of the Isotopic Exchange Depth Profile method (IEDP). O / O exchange anneals were 18 performed at various temperatures between 6008C and 10008C (P |1 atm), and the subsequent O diffusion profiles O 2 determined by Secondary Ion Mass Spectrometry (SIMS). It was seen that, in general, the oxygen tracer diffusivity of these materials increases significantly with strontium site fraction, x, and cobalt site fraction, y. This was attributed to variations in the site fraction of oxygen vacancies, with approximately constant isothermal vacancy diffusivities. The activation enthalpies for oxygen tracer diffusion were also found to be strongly dependent upon composition.
Who reads Oxygen transport in La1−xSrxMn1−yCoyO3±δ perovskites: Part I. Oxygen tracer diffusion?
It is typically read by researchers, students, and practitioners in Materials Science.
- Author
- R.A. De Souza; J.A. Kilner
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0167-2738)
- Published
- 1998
- Language
- EN
- Field
- Materials Science (Physical Sciences)