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Hgcdte crystal appreciation etchant

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TLDR
In this article, the authors proposed an etchant for appreciation of mercury/cadmium/tellumium crystal which enables accurate discrimination of a pit with less surface roughening by one etching treatment without performing a post-treatment.
Abstract
PURPOSE:To propose etchant for appreciation of mercury/cadmium/tellumium crystal which enables accurate discrimination of a pit with less surface roughening by one etching treatment without performing a post-treatment. CONSTITUTION:This etchant has a composition consisting of potassium dichromate of 4.1 to 5.6wt%, nitric acid of 15.2 to 21wt%, hydrochloric acid of 5.7 to 7.9wt%, acetic acid of 13.3 to 32.4wt.% and water of the remainder.

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Shear measuring method and its device

TL;DR: In this paper, a resonance shear measuring method capable of simple and rapid measurement by Fourier transformation of a damping curve of an oscillation on one side surface of a sample during measurement of shear response from the sample is provided.