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Chemistry for Sustainable Development

2004 year, number 5

Mechanochemical Methods for the Synthesis of Metal-Ceramics-Polytetrafluoroethylene Composite Materials

O. I. LOMOVSKY1, A. A. POLITOV1, D. V. DUDINA1, M. A. KORCHAGIN1 and V. M. BOUZNIK2
1Institute of Solid State Chemistry and Mechanochemistry, Siberian Branch of the Russian Academy of Sciences
, Ul. Kutateladze 18, Novosibirsk 630128 (Russia) E-mail: lomov@solid.nsc.ru
2Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Pr. Akademika Lavrentyeva 5, Novosibirsk 630090 (Russia)
Pages: 601-607

Abstract

Solid-phase mechanochemical methods for the synthesis of new materials, metal-fluoropolymer and metal-ceramics-fluoropolymer composites have been developed. Composite materials possessing high electric conductivity, low friction coefficient and mechanical attrition resistance were synthesized from W-Cu, WC-Cu, and Cu-TiB2 and ultrafine polytetrafluoroethylene (UPTFE) systems. It is demonstrated that thermal stability of mechanically processed pure UPTFE differs from that of the PTFE component of mechanocomposites and depends on the nature of the main component of the composite.