Journal of the American Ceramic Society · 1981 · 100 citations · 12 references
Natural SciencesMaterials EngineeringMaterials ScienceInorganic ChemistryPhysical ChemistryTransport PhenomenaCrystallization ProcessesDiffusion In SolidsMetal OxidesMetalsOxygen TransportSolid-state DiffusionConcentration ProfilesDiffusion CoefficientsDiffusion In CrystalsDiffusion In OxidesDiffusivityOxygen DiffusionSpinel CeramicsSpinel Materials
Oxygen self‐diffusion in MgAl 2 O 4 single crystals was investigated by annealing the samples in 18 O enriched gas at 98 kPa (1 atm) and measuring the tracer concentration profiles using a proton activation technique. The diffusion coefficients in the range 1625 to 1925 K for stoichiometric crystals are represented by: Oxygen diffusivity in alumina‐rich nonstoichiometric samples is higher than in stoichiometric samples.
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Oxygen diffusion in forsterite
Kasala Prabhakar Reddy, Seung-Jin Oh, L. D. Major et al. · Journal of Geophysical Research Atmospheres · 1980 · 122 citations