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- Title
The Shock-Wave Synthesis of Ultradisperse Chromium-Doped Alumina Powder.
- Authors
Im Tkhek-de; Lyamkina, N. E.; Lyamkin, A. I.; Podavalova, O. P.; Slabko, V. V.; Chiganova, G. A.
- Abstract
An ultradisperse alumina (Al[sub 2]O[sub 3]) powder doped with Cr[sup 3+] ions was synthesized for the first time by shock-wave loading of a mixture of aluminum powder and ammonium chromate. The synthesized powder is composed primarily of the chromium-doped α- and δ-Al[sub 2]O[sub 3] particles. The luminescence spectra of the α phase are identical to those of a macroscopic ruby crystal sample, which indicates that chromium atoms are incorporated into the alumina lattice. The Cr[sup 3+]-doped δ-Al[sub 2]O[sub 3] modification represents a new optical material.
- Subjects
ALUMINUM oxide; SHOCK waves
- Publication
Technical Physics Letters, 2001, Vol 27, Issue 7, p533
- ISSN
1063-7850
- Publication type
Article
- DOI
10.1134/1.1388933