Affiliation:
1. College of Textile Science and Engineering, Wuhan Textile University, Wuhan 430200, China
2. State Key Laboratory of New Textile Materials & Advanced Processing Technology, Wuhan Textile University, Wuhan 430073, China
3. Glorious Sun Guangdong School of Fashion, Huizhou University, Huizhou, 516007, Guangdong China
Abstract
Ceramic yarns play an important role in the aerospace sector, aviation, military, shipbuilding and nuclear industry, they
have some advantages of high-temperature resistance, high specific strength and high specific modulus. However,
almost no one studies the bending properties of ceramic yarns. To explore the influence of the degree of bending of
ceramic yarn on its mechanical properties, three kinds of ceramic yarns (silicon carbide, silicon nitride and alumina) were
knotting, bending and checking tensile tests. The retention rate of silicon nitride yarn after bending, checking and
knotting tensile tests was 81.9%, 3.39% and 0.17%. The retention rate of silicon carbide yarn after bending, checking
and knotting tensile tests was 95.1%, 4.88% and 0.09%, respectively. After bending, checking and knotting tensile tests,
the fracture strength retention rate of alumina yarn was 91.8%, 0.39% and 0.04%. It was proved that the retention rate
of breaking strength of ceramic yarn decreases seriously under different forms of bending. As a result, ceramic yarns
should not be used under bending conditions.
Publisher
The National Research and Development Institute for Textiles and Leather