A study of strains in abraded diamond surfaces
- 24 October 1967
- journal article
- Published by The Royal Society in Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences
- Vol. 301 (1466) , 239-252
- https://doi.org/10.1098/rspa.1967.0205
Abstract
The nature of surface damage suffered by diamond during abrasion processes has been studied by X-ray topographic analysis of the strain patterns in and around microabrasion patches on cube, dodecahedron and octahedron surfaces of highly perfect natural diamonds. The strain field has been computed from an elastic model assuming that the abrasion leaves a thin surface layer of crystal in a state of residual compression. The observed diffraction contrast agrees well with this model. From the contrast patterns the stresses in the surface, expressed as force in the surface acting normally to unit length in the surface, lie in the range 1 × 10 5 to 5 × 10 5 dyn/cm, with little dependence upon orientation of the abrasion. The evidence strongly favours a microcracking mechanism for abrasive wear of diamond.Keywords
This publication has 8 references indexed in Scilit:
- Local air routes in Yakutskaya ASSRPolar Record, 1966
- ReviewsNotes and Queries, 1965
- Periodical abstractsEugenics Quarterly, 1965
- Applications of `limited projection topographs' and `direct beam topographs' in diffraction topographyBritish Journal of Applied Physics, 1963
- Dynamical theory of diffraction applicable to crystals with any kind of small distortionActa Crystallographica, 1962
- THE WEATHER OF NOVEMBER 1961Weather, 1961
- The projection topograph: a new method in X-ray diffraction microradiographyActa Crystallographica, 1959
- A boundary effect on the intensity of X-rays reflected from a quartz plateActa Crystallographica, 1954