Emirhan Karadağlı, PhD. Candidate
Metallurgical and Materials Engineering
Yıldız Technical University
Development of B4C-matrix Ceramic Composite Systems for Lightweight
Supervisor: Assoc Prof. Dr. Buğra Çiçek
Ceramic-matrix composites (CMC) can be used under various conditions which necessitate
high hardness, low density, high thermal/chemical resistance and semiconducting capability.
Different combinations of oxide and non-oxide ceramic materials were used to develop CMC
systems to provide specific characteristics for designated missions . B 4 C tend to show
ultra-high hardness, low density and high wear resistance which makes it ideal for armor
applications and cutting tools . B 4 C-matrix ceramic composite systems can offer improved
properties compared to monolithic B 4 C such as; improved fracture toughness, higher
strength and improved amorphization behaviour under impact or load. The aim of this study
is to develop lightweight B 4 C-matrix ceramic composite systems via hot pressing or reaction
sintering methods for lightweight armor and aerospace applications.
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