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Wear of a new type of diamond composite
Authors:P Larsson  N Axn  T Ekstrm  Sergei Gordeev  S Hogmark
Affiliation:

a Department of Materials Science, The Ångström Laboratory, Uppsala University, Box 534, S-751 21, Uppsala, Sweden

b Skeleton Technologies Ltd, Box 703 96, S-107 24, Stockholm, Sweden

c Central Research Institute for Materials, Paradnaya St. 8, St Petersburg 191 014, Russian Federation

Abstract:The erosion and abrasion resistances of a new type of composite consisting of diamond particles embedded in a silicon carbide matrix have been evaluated. The investigation is a comparative study in which a conventional cemented carbide, a commercially available polycrystalline diamond material and some common engineering ceramics are included as reference materials. The materials are characterised in terms of wear rates and scanning electron microscopy images of the worn surfaces.

It was found that the new diamond–silicon carbide composites were comparable to the commercial diamond composite, and out-competed the other reference materials in erosive and abrasive wear. The results are discussed in terms of the microstructural characteristics of the composites.

Keywords:Diamond composites  Abrasion  Erosion
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