Abstract
IN the course of investigations on dental alloys and amalgams, which we have carried out at the National Physical Laboratory on behalf of the Dental Investigation Committee, Department of Scientific and Industrial Research, we have thought it necessary, for the full study of the constitution of the amalgams, to undertake their microscopic examination. As mercury, and the amalgams rich in mercury, must be completely solidified for this purpose, it has been necessary to devise means for the preparation, etching, and photo-micrography of specimens at very low temperatures. Most of the work has been done by means of a paste of carbon dioxide snow and acetone.
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ROSENHAIN, W., MURPHY, A. Microstructure of Mercury. Nature 118, 261 (1926). https://doi.org/10.1038/118261a0
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DOI: https://doi.org/10.1038/118261a0
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