Application of Ductile Metallic Phase Toughening Mechanism to Ceramics/Metals Functionally Gradient Materials

Autor: Syuji Maruyama, Osamu Watanabe, Kazumi Hirano
Rok vydání: 1994
Předmět:
Zdroj: TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A. 60:2350-2356
ISSN: 1884-8338
0387-5008
DOI: 10.1299/kikaia.60.2350
Popis: It is still essential for high strength engineering ceramics to improve fracture toughness for a wide use in primary structural applications. The purposes of this paper are to apply the ductile metallic phase toughening mechanism proposed previously to ceramics/metals functionally gradient materials (FGMs) and to confirm the possibility of improvement of fracture toughness without the reduction of strength. Fracture characteristics were investigated for symmetrically step by step graded FGMs (Cr3C2/Ni, TiC/Ni) on the basis of fracture mechanics and fractography. It was found that the ductile metallic phase toughening mechanism has a good potential for ceramics/metals FGMs.
Databáze: OpenAIRE