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Enhanced Oxygen Diffusion at 1400°C in Deformed Single‐Crystal Magnesium Oxide
Author(s) -
Henriksen Anders F.,
Chiang YetMing,
Kingery W. David,
Petuskey William T.
Publication year - 1983
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1983.tb10115.x
Subject(s) - scandium , thermal diffusivity , analytical chemistry (journal) , oxygen , magnesium , materials science , diffusion , secondary ion mass spectrometry , oxide , sputtering , ion , doping , single crystal , chemistry , thin film , crystallography , metallurgy , nanotechnology , chromatography , physics , optoelectronics , organic chemistry , quantum mechanics , thermodynamics
The rate of oxygen difusion at 1400°C into pure, deformed, and scandium‐doped MgO was measured using a secondary‐ion mass spectrometer with 16 O ‐ primary ions as sputtering agents to monitor the penetration of 18 O into the sample from an 18 O‐enriched surface layer. In samples doped with scandium, oxygen diffusivity did not differ significantly from the value, 1.3 × 10‐ 15 cm 2 /s, found for the pure sample. In deformed samples, the diffusion coefficient was 5.8 × 10 ‐15 cm 2 /s .