Residual rays as hardness indicators

Carl-Gustaf Ribbing; Klas Hjort

doi:10.1117/12.20522

1 August 1990 Residual rays as hardness indicators

Carl-Gustaf Ribbing, Klas Hjort

Proceedings Volume 1275, Hard Materials in Optics; (1990) https://doi.org/10.1117/12.20522
Event: The International Congress on Optical Science and Engineering, 1990, The Hague, Netherlands

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.

Citation Download Citation

Carl-Gustaf Ribbing and Klas Hjort "Residual rays as hardness indicators", Proc. SPIE 1275, Hard Materials in Optics, (1 August 1990); https://doi.org/10.1117/12.20522

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