Chemical vapour deposition of diamond using low pressure flat combustion flame

Diamond coatings were deposited onto Mo and WC-Co substrates using a low pressure premixed acetylene-oxygen flat flame by means of a special apparatus operating at 50 mbar. Uniform diamond coatings containing significant amounts of non-diamond carbon were deposited over areas of ?7 cm2 onto Mo subst...

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Bibliographic Details
Published in:Journal of the Serbian Chemical Society 2006-01, Vol.71 (2), p.197-202
Main Authors: Vilotijevic, Miroljub, Grahovac, Nebojsa, Milovanovic, Ljiljana, Marinkovic, Slobodan
Format: Article
Language:English
Subjects:
Diamond CVD
low pressure flat flame
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Summary:Diamond coatings were deposited onto Mo and WC-Co substrates using a low pressure premixed acetylene-oxygen flat flame by means of a special apparatus operating at 50 mbar. Uniform diamond coatings containing significant amounts of non-diamond carbon were deposited over areas of ?7 cm2 onto Mo substrates, the coating thickness after 1 h deposition amounted to ?1 ?m. Upon machining an Al-12 % Si alloy under identical conditions, the diamond coated WC-Co cutting tool inserts showed 30 % less wear than the as-received inserts. Uz pomoc acetilensko-kiseonicnog plamena na niskom pritisku deponovane su dijamantske prevlake na podlogama od Mo i WC-Co, koristeci specijalnu aparaturu koja omogucuje rad na 50 mbar. Na Mo podlogama su deponovane uniformne prevlake na povrsini od ?7 cm2. Posle jednocasovnog deponovanja debljina prevlake iznosi ?1 ?m. Pri rezanju legure Al-12 % Si pod jednakim uslovima, habanje izmenljivih plocicama reznog alata od WC-Co sa dijamantskom prevlakom je za 30 % manje od habanja standardnih plocica.
ISSN:0352-5139
1820-7421
DOI:10.2298/JSC0602197V