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J. Korean Ceram. Soc. > Volume 29(8); 1992 > Article
Journal of the Korean Ceramic Society 1992;29(8): 651.
알루미나에서의 파괴인성 측정
윤경진, 박성길, 김종집, 조성재
한국표준과학연구원 소재평가센터
Fracture Toughness Testing in Alumina
Fracture toughness of alumina was determined by IF, IS, DT, SEPB methods, and the data were inter-compared. Round robin test on IF and IS methods was also conducted under the participitation of 4∼5 domestic institutes. Fracture toughness data determined by IF, IS, DT methods were similar, while those by SEPB method were smaller. Variation of toughness data determined by IS method using 98N of indentation load was significantly small compared to those determined by any other methods. Round robin test results showed that toughness data determined by IF method at various institutes do not coincide each other, while those by IS method do well coincide. Thus, it was concluded that inter-confidence on fracture toughness data, if determined by IS method at all institute, can be established between institutes.
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