Effect of the Surface Modification of Synthetic Diamond with Nickel or Tungsten on the Properties of Copper–Diamond Composites

Effect of the Surface Modification of Synthetic Diamond with Nickel or Tungsten on the Properties of Copper–Diamond Composites Full article

Journal

Inorganic Materials
ISSN: 0020-1685

Output data

Year: 2018, Volume: 54, Number: 5, Pages: 426-433 Pages count : 8 DOI: 10.1134/s0020168518050151

Tags

chemical vapor deposition; copper–diamond composites; thermal conductivity

Authors

Ukhina A.V. ¹ , Dudina D.V. ^1,2 , Samoshkin D.A. ³ , Galashov E.N. ⁴ , Skovorodin I.N. ⁵ , Bokhonov B.B. ^1,4

Affiliations

1	Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch, Russian Academy of Sciences
2	Lavrentyev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences
3	Kutateladze Institute of Thermophysics, Siberian Branch, Russian Academy of Sciences
4	Novosibirsk State University
5	Institute of Automation and Electrometry, Siberian Branch, Russian Academy of Sciences

Tungsten- and nickel-containing coatings have been produced on the surface of synthetic diamond crystals by rotary chemical vapor deposition (RCVD) using tungsten hexacarbonyl, W(CO)6, and nickelocene, Ni(C5H5)2, as gaseous precursors. The thickness, composition, and morphology of the coatings have been shown to depend on the RCVD process duration and reactant concentrations in the vapor phase. The synthetic diamond microcrystals with tungsten- and nickel-containing coatings have been used to produce copper–diamond heat-conducting composites. Powder mixtures containing 50 vol % diamond with a particle size of 50, 100, or 200 μm have been consolidated by spark plasma sintering or hot pressing. It has been shown that the highest relative density (97%) and thermal conductivity (340 W/(m K)) are offered by the composites produced by spark plasma sintering using tungsten carbide-coated 50-μm diamond crystals.

Ukhina A.V. , Dudina D.V. , Samoshkin D.A. , Galashov E.N. , Skovorodin I.N. , Bokhonov B.B.
Effect of the Surface Modification of Synthetic Diamond with Nickel or Tungsten on the Properties of Copper–Diamond Composites
Inorganic Materials. 2018. V.54. N5. P.426-433. DOI: 10.1134/s0020168518050151 WOS Scopus РИНЦ OpenAlex

Web of science:	WOS:000431406200003
Scopus:	2-s2.0-85046440657
Elibrary:	35495115
OpenAlex:	W2799753891

DB	Citing
Scopus	17
OpenAlex	17
Elibrary	19
Web of science	17