Fracture Strength of Ultra-High Temperature Ceramics

Tao Zeng; Dai Ning Fang; Xia Mei Lu; Fei Fei Zhou

doi:10.4028/www.scientific.net/KEM.368-372.1785

Paper Titles

Preparation and Properties of 2D C/SiC-TaC Composites
p.1771

Effects of Oxygen Content on the Properties of Ultra-High-Temperature Resistant Si-Al-C Fibers
p.1774

Processing and Characterization of Ultra-High Temperature Oxide Fiber-Reinforced Oxide Ceramic Matrix Composites with Improved Thermomechanical Properties
p.1778

Thermal Shock Resistance of Ultra-High Temperature Ceramics
p.1782

Fracture Strength of Ultra-High Temperature Ceramics
p.1785

Microstructure and Mechanical Properties of High Density PCBN Aggregates
p.1788

Mechanical Properties Evaluation of Ultra-High Temperature Ceramics
p.1791

Layered and Graded Coatings as Plasma Facing Materials for Fusion in LSCPM
p.1795

Toughness and Superplastic Deformation of Laminated Ceramic
p.1799

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Fracture Strength of Ultra-High Temperature Ceramics

Abstract:

This paper presents a theoretical model to predict the fracture strength of ultra-high temperature ceramics (UHTCs). According to different mechanisms, the environmental temperature is divided into four ranges. Effects of temperature and oxidation on the fracture strength of UHTCs are investigated in each temperature range. The results show that oxidation plays an important role in enhancing the fracture strength of UHTCs at high temperatures.