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Proceedings Paper

Residual rays as hardness indicators
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Paper Abstract

An empirical relationship between the long wavelength edge of the residual ray band in the IRreflectance of partly ionic compounds and bulk hardness is demonstrated. The group of materials studied includes alkali halides, semi-conductors and some hard compounds, mostly with cubic structure and a few with hexagonal. The correlation is shown for the Young modulus, the melting temperature and also to some extent the indentation hardness. The Young moduli cover a range from 10 to almost 500 GPa and the melting temperatures vary from 600 to 3000°C.

Paper Details

Date Published: 1 August 1990
PDF: 8 pages
Proc. SPIE 1275, Hard Materials in Optics, (1 August 1990); doi: 10.1117/12.20522
Show Author Affiliations
Carl-Gustaf Ribbing, Uppsala Univ. (Sweden)
Klas Hjort, Uppsala Univ. (Sweden)

Published in SPIE Proceedings Vol. 1275:
Hard Materials in Optics
Carl-Gustaf Ribbing, Editor(s)

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