The lattice parameters of α-alumina and chromic oxide
Published online by Cambridge University Press: 14 March 2018
Extract
During the course of a study of the interaction of certain pure refractory oxides at high temperatures it became necessary to obtain accurate values for the lattice parameters of α-alumina and chromic oxide. Values obtained by previous workers, listed in table I, did not attain a greater accuracy than one part in 2000, whereas the use of large-diameter powder cameras calibrated with quartz now yield lattice parameters accurate to at least one part in 30,000.
Samples of the calcined oxides were examined in a 19 cm. diameter powder camera, alumina with cobalt Kα radiation and chromic oxide with chromium Kα radiation. Results are given in tables II and III.
- Type
- Research Article
- Information
- Mineralogical magazine and journal of the Mineralogical Society , Volume 27 , Issue 187 , December 1944 , pp. 56 - 58
- Copyright
- Copyright © The Mineralogical Society of Great Britain and Ireland 1944
References
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