Non-destructive residual stress investigations of natural polycrystalline diamonds

Andrew M. Venter, Vladimir Luzin, Marco A G Andreoli, Sandra Piazolo, Tshegofatso Moipolai

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

1 Citation (Scopus)

Abstract

Three natural polycrystalline diamond samples have been investigated non-destructively in their raw as-discovered forms. The samples originate from different locations in the world and possibly have different mechanisms of formation. The study reveals that the stones are primarily composed of cubic diamond with varying amounts of impurities that emanate from their excessive porosities and entrapped environmental contamination, contributed by the areas in which they were formed and subsequently discovered. Residual stress analyses of the cubic diamond phase with Xray and neutron diffraction techniques revealed low stress values in the interior regions of the diamonds.

Original languageEnglish
Title of host publicationResidual Stresses IX
EditorsM. Francois, G. Montay, B. Panicaud, D. Retraint
Place of PublicationZurich, Switzerland
PublisherTrans Tech Publications
Pages969-974
Number of pages6
Volume996
ISBN (Print)9783038351535
DOIs
Publication statusPublished - 2014
Event9th European Conference on Residual Stresses, ECRS 2014 - Troyes, France
Duration: 7 Jul 201410 Jul 2014

Publication series

NameAdvanced Materials Research
Volume996
ISSN (Print)10226680
ISSN (Electronic)16628985

Other

Other9th European Conference on Residual Stresses, ECRS 2014
CountryFrance
CityTroyes
Period7/07/1410/07/14

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