10.2021.80.85

Improving the Toughness of Ceramic Matrix Composites: A Comprehensive Review

Author(s):

Kalahasti Sirisha†,*, E Venugopal Goud‡

Affiliation(s):

† Research Scholar, Department of Mechanical Engineering, JNT University Ananthapur, Ananathapuramu, Andhra Pradesh, India
‡ Professor, Department of Mechanical Engineering, G Pullareddy Engineering College, Andhra Pradesh, India

Corresponding Author Email: ksirisha.mct@gmail.com

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Ceramic composites are used in various applications such as for components of turbines, combustion chambers, in hot gas ducts, automotive parts, bearing components etc., because of their extraordinary properties of heat, shock, corrosion and wear resistance. In addition to the above properties, ceramic composites exhibit high strength and modulus at elevated temperatures. Inspite of these excellent properties and wide range of applications of ceramic composites, they suffer from the drawback of having poor toughness and brittleness, which leads to the catastrophic failure of the components. For this reason, the applications of these composites are limited at higher temperatures. This necessitates the improvement of the toughness and decrease of the brittleness of the ceramic matrix composites. In this regard, there is a necessity to understand the various manufacturing processes, mechanical behavior, strengthening mechanisms of the ceramic matrix composites so that we can extend their applications in the structures. Hence, an attempt is made to review the literature on various manufacturing processes, characterization of the various thermo physical properties, strengthening mechanisms particularly, towards the increase of the toughness and decreasing of the brittleness in the ceramic composites.