Microstructure and interfaces in diamond coated steel wires

Diamond fibres were produced in a hot filament reactor by chemical vapour deposition of a 40 μm thick layer of diamond on to titanium-coated iron and iron–chromium wires. In the 40 h deposition time carbon diffused through the titanium and steel and produced carbide microstructures with hardness val...

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Veröffentlicht in:Journal of materials science 1997-08, Vol.32 (16), p.4201-4208
Hauptverfasser: PARTRIDGE, P. G, YOUNES, C. M, NICHOLSON, J, MEADEN, G, NICHOLSON, E. D, BLEAY, S, GILMORE, C
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Sprache:eng
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Zusammenfassung:Diamond fibres were produced in a hot filament reactor by chemical vapour deposition of a 40 μm thick layer of diamond on to titanium-coated iron and iron–chromium wires. In the 40 h deposition time carbon diffused through the titanium and steel and produced carbide microstructures with hardness values of ∼ 3234 and 5390 N mm-2 for the Fe and Fe–Cr cores, respectively. During cooling thermal stress fracture of the diamond was avoided by stress relief cracks in the disordered graphite layer at the diamond/Ti-rich layer interface.
ISSN:0022-2461
1573-4803
DOI:10.1023/A:1018634814881