Fracture Behavior of a Silicon Nitride Ceramic under Mixed-Mode Fracture Condition

Autor: Hiroshi Uchimura, Masaki Kaji, Takashi Ono, Takeshi Takenoshita
Rok vydání: 1993
Předmět:
Zdroj: Journal of the Ceramic Society of Japan. 101:240-243
ISSN: 1882-1022
0914-5400
DOI: 10.2109/jcersj.101.240
Popis: The mixed-mode fracture toughness of a silicon nitride ceramic was studied to evaluate the parameter C in Shetty's empirical equation. The measurement was conducted at room temperature and 800°C by the four-point bending method using the controlled surface flaw technique. The obtained Shetty's parameter C was 1.58 at room temperature and 1.35 at 800°C. These values are in good agreement with those obtained by multiaxial strength tests.
Databáze: OpenAIRE