Journal ArticleDOI
Effect of transition metal ion impurities on the thermoluminescence of alumina
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This article is published in Journal of Materials Science.The article was published on 1980-02-01. It has received 1 citations till now. The article focuses on the topics: Thermoluminescence & Impurity.read more
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Effects of recrystallization on the low cycle fatigue behavior of directionally solidified superalloy DZ40M
TL;DR: In this article, the effects of recrystallization on low cycle fatigue behavior on directionally solidified Co-base superalloy DZ40M were investigated using optical microscopy and SEM.
References
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Journal ArticleDOI
Color Centers and Radiation-Induced Defects in Al 2 O 3
TL;DR: The peak energy of the color centers of the gamma-ray-induced bands in this article was shown to be 5.4 GHz with an indication of a band at 6.2 GHz.
Journal ArticleDOI
Thermoluminescence Studies of Aluminum Oxide.
Journal ArticleDOI
The Dominant Type of Atomic Disorder in α‐Al2O3
TL;DR: In this article, the authors compared the energy of formation per defect in α-Al2O3 doped with donors and acceptors on the basis of various models, with theoretical values calculated by Dienes et al. for various disorder models, showing closest correspondence of the exFrimentd values with the smallest theoretical values (obtained for Schottky disorder).
Journal ArticleDOI
Spin Resonance of V 2 + , V 3 + , V 4 + in α - Al 2 O 3
John Lambe,Chihiro Kikuchi +1 more
TL;DR: The electron-spin resonance absorption properties of vanadium sapphire are reported in this paper, and it is shown that normally vanadium is predominantly trivalent with a small amount in the tetravalent state.
Journal ArticleDOI
Color Centers in γ-Irradiated Ruby
Tetsuo Maruyama,Yasuhiko Matsuda +1 more
TL;DR: In this paper, the color center behaviors in γ-irradiated ruby were studied and the additive absorption spectra due to γirradiation were superposition of four bands each peak of which was found to be 220, 280, 370 and 460 mµ. From the observation of formation and annealing processes of these color centers, it was concluded that in aluminum oxide the additional lattice defect can not be created by γ irradiation and the nominal amount of impurity will determine the color centre concentration.
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