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Solid Solution of Titanium Dioxide in Aluminum Oxide
Author(s) -
WINKLER E. R.,
SARVER J. F.,
CUTLER IVAN B.
Publication year - 1966
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.1151-2916.1966.tb13189.x
Subject(s) - cathodoluminescence , solid solution , titanium dioxide , materials science , analytical chemistry (journal) , titanium , solubility , crystallite , oxide , diffuse reflection , mineralogy , metallurgy , chemistry , optics , environmental chemistry , luminescence , physics , optoelectronics
The solid solution limit of titanium dioxide in Al 2 O 3 was investigated using diffuse reflectance and cathodoluminescence measurements on polycrystalline Al 2 O 3 doped with 1.0 mole % or less TiO 2 . The samples had been fired in air at 1300°C. The diffuse reflectance spectra indicated that the solid solubility limit is between 0.25 and 0.30 mole %. Cathodoluminescence spectra indicated that both Ti 3+ and Ti 4+ are present in air‐fired samples whereas only Ti 3+ is present in hydrogen‐fired samples.