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Journal of Materials Science

, Volume 26, Issue 17, pp 4813–4817 | Cite as

Preparation and mechanical properties of SiC-AlN ceramic alloy

  • Jing-Feng Li
  • Ryuzo Watanabe
Papers

Abstract

Fine-grained SiC-AlN ceramic alloys were synthesized by the reaction of silicon nitride and aluminium nitride powders with additions of carbon and CaO. X-ray diffraction and STEM-EDX analysis showed that they are single phase solid solutions. The SiC-AlN alloys were sintered without additives to full density by hot isostatic pressing at 2173 K and 200 MPa for 2 h. The flexural strength, microhardness and fracture toughness were measured and it was found that SiC-AlN alloys have double the strength and slightly higher fracture toughnesses than conventional monolithic SiC.

Keywords

Fracture Toughness Flexural Strength Silicon Nitride Full Density Aluminium Nitride Powder 

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Copyright information

© Chapman & Hall 1991

Authors and Affiliations

  • Jing-Feng Li
    • 1
  • Ryuzo Watanabe
    • 1
  1. 1.Department of Materials Processing, Faculty of EngineeringTohoku UniversitySendaiJapan

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