Design and Application of Testing Equipment for Determining the Mechanical Properties of Ceramics at Ultrahigh Temperatures

The elastic modulus and fracture strength at ultrahigh temperatures over 1500°C is very important for Ultrahigh temperature ceramics (UHTCs), but no available method can be used so far because of the limitation of the testing equipments. In this work, a novel testing equipment was developed to deter...

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Bibliographic Details
Published in:Key Engineering Materials 2016-02, Vol.680, p.3-8
Main Authors: Tian, Yuan, Liu, Zhao, Wan, De Tian, Bao, Yi Wang, Qiu, Yan
Format: Article
Language:English
Subjects:
Ceramics
Elastic modulus
Fracture strength
Mechanical properties
Modulus of elasticity
Silicon carbide
Testing equipment
Ultrahigh temperature
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Summary:The elastic modulus and fracture strength at ultrahigh temperatures over 1500°C is very important for Ultrahigh temperature ceramics (UHTCs), but no available method can be used so far because of the limitation of the testing equipments. In this work, a novel testing equipment was developed to determine the elastic modulus and fracture strength (bending, tensile and shear strength) of ceramics from 1500 °C to 2200 °C. To check the availability and reliability of this equipment, several typical UHTCs including C, C/C fiber woven composite and C/SiC ceramic composite, were used as the testing samples. The results indicate that this new designed testing equipment is a good and feasible for evaluating the ultrahigh temperature mechanical properties of ceramics over 1500 °C in vacuum or in air.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.680.3