Thermal Shock Strength of Carbon-Carbon Composite by Laser Irradiation Technique Based on Shear Strength Criterion

Autor: Hong-Wei Li, Shigeru Akiyama, Shigeyasu Amada
Rok vydání: 2001
Předmět:
Zdroj: Fusion Science and Technology. 40:265-273
ISSN: 1943-7641
1536-1055
Popis: The laminated carbon-carbon (C/C) composite is candidate material for plasma-facing components in fusion reactors. Its thermal shock strength must be evaluated for an application to the components facing the high-temperature plasma field. However, few studies have been done. A laser irradiation method newly proposed was applied effectively to lamination of C/C composite for the evaluation of thermal shock strength by subjecting a heat flux up to 27 J/mm{sup 2} on the specimen surface. By introducing the critical power density at which the material fracture occurs, thermal shock strength was obtained. It was concluded that the critical power density could be a new measure to evaluate thermal shock strength for laminated C/C composite.
Databáze: OpenAIRE