Functionally gradient materials in the SiC-Ti3SiC2 system.

• Autorzy: Lis J. , Łopaciński M. , Rudnik T. , Stobierski L.
• Konferencja: AMT'98 XVth Physical Metallurgy and Materials Science Conference 'Advanced Materials & Technologies', 17-21 May, 1998, Kraków-Krynica, Poland
• Języki publikacji: PL

Abstrakty

EN

Functionally Gradient Materials (FGMs) present a new form of composite laminates characterised by a continuous distribution of constituent phases without macroscopic phase boundaries. Such materials possess very promising charcteristics especially mechanical, thermal and chemical resistance. The authors present a preparation method of the new ceramic multilayered composites obtained according to the FGM concept with controlled hardness and fracture toughness. The two different ceramic materials, namely a very hard silicon carbide and a relatively soft ceramics of a high fracture toughness based on Ti3SiC2 were joined in one layered composite. The materials were prepared by a powder metallurgy procedure with the use of a hot-pressing technique. The starting sinterable powders were made separately by the Self-propagating High-temperature Synthesis. Then, after an appropriate preparation, they were hot-pressed in a graphite mould in an inert atmosphere. Microstructure investigations and indentation tests showed the FGM structure with a hardness distribution.

Słowa kluczowe

PL

kompozyty ceramiczne wielowarstwowe; węglik krzemu; laminat; twardość; odporność na kruche pękanie; metalurgia proszków; prasowanie na gorąco

EN

ceramic multilayered composites; functionally gradient materials; silicon carbide; laminate; hardness; fracture toughness; powder metallurgy; hot pressing

• Wydawca: Wydawnictwo SIGMA-NOT
• Czasopismo: Inżynieria Materiałowa
• Rocznik: 1998
• Tom: R. XIX, nr 4
• Strony: 1280--1283

Twórcy

autor

Lis J.

autor

Łopaciński M.

autor

Rudnik T.

autor

Stobierski L.

• University of Mining and Metallurgy, Faculty of Materials Science and Ceramics, Kraków