The etching of diamonds by low pressure oxygen
- 1 July 1957
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine
- Vol. 2 (19) , 859-863
- https://doi.org/10.1080/14786435708242724
Abstract
Diamonds have been etched by heating on a molybdenum filament in a low pressure (about 2.5μ Hg) of oxygen. The etch figures obtained by this method have the same orientation as those obtained by etching in oxidizing melts, but differ in outline by being sharply triangular. They are in fact similar in all respects, except for the inverted orientation, to the natural features called ‘trigons’. It is therefore concluded, contrary to recently accepted opinion, that the latter are also probably etch figures, produced by an unknown natural etching process. Note : Unless the edge of the crystal is in the field of view, all upright triangles are etch pits.Keywords
This publication has 2 references indexed in Scilit:
- The etching of diamond I. Octahedron facesProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1954
- Interference studies of diamond faces. A crossed fringe techniqueProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1947