Ceramic Matrix Composites .

J. Mukerji

doi:10.14429/dsj.43.4292

J. Mukerji Central Glass and Ceramic Research Institute, Jadavpur, Calcutta.

DOI: https://doi.org/10.14429/dsj.43.4292

Keywords: Fracture toughness, Structural ceramics, Metal reinforced ceramics.

Abstract

The present state of the knowledge of ceramic-matrix composites have been reviewed. The fracture toughness of present structural ceramics are not enough to permit design of high performance machines with ceramic parts. They also fail by catastrophic brittle fracture. It is generally believed that further improvement of fracture toughness is only possible by making composites of ceramics with ceramic fibre, particulate or platelets. Only ceramic-matrix composites capable of working above 1000 degree centigrade has been dealt with keeping reinforced plastics and metal-reinforced ceramics outside the purview. The author has discussed the basic mechanisms of toughening and fabrication of composites and the difficulties involved. Properties of available fibres and whiskers have been given. The best results obtained so far have been indicated. The limitations of improvement in properties of ceramic-matrix composites have been discussed.

Author Biography

J. Mukerji, Central Glass and Ceramic Research Institute, Jadavpur, Calcutta.

Dr J Mukerji obtanied MSc (Tech) in Applied Chemistry in 1957. He proceeded to France with a French Govt fellowship and worked with National High School of Chemistry in University of Sorbonne and Institute of Ferrous Metallurgy and obtained a degree of Docteur es Sciences Physiques (D'octorat d'etat) from the University of Sorbonne Paris in 1962. He worked for a short time in DRDO and then joined the Cental Glass and Ceramic Research Institute. His present interest is in advanced structural ceramic Research Institute. His present interest is in advanced structural ceramic and industrial glasses.