| Home | E-Submission | Sitemap | Login | Contact Us |  
J. Korean Ceram. Soc. > Volume 40(7); 2003 > Article
Journal of the Korean Ceramic Society 2003;40(7): 662.
doi: https://doi.org/10.4191/kcers.2003.40.7.662
용융침투법으로 제조한 유리-알루미나 복합체: III. In-vitro 피로거동
이득용, 이세종1, 박일석2, 장주웅3, 김병수3
대림대학 재료정보학과
1경성대학교 재료공학과
2연세대학교 세라믹공학과
3(주) 우리동명 치과재료연구소
Glass-alumina Composites Prepared by Melt Infi1tration: III. In-vitro Fatigue Behavior
Hertzian cyclic fatigue properties of the alumina-glass dental ceramics were evaluated in exact in vitro environment at contact loads from 200 N to 1000 N and up to 10$^$6/ cycles to investigate the indentation damage and strength degradation. At 200 N, no strength degradation and crack generation was observed up to 10$^$6/ contact cycles. As load increased from 200 N to 1000 N, the drastic reduction in strength was found when the damage transition from ring to radial crack occurred. The extent of strength degradation was more pronounced in vitro environments probably due to chemical reaction of artificial saliva with glass phase through radial cracks introduced during large numbers of contacts.
Key words: Dental crowns, In-vitro, Glass-alumina composites, Hertzian contact fatigue, Artificial saliva
Editorial Office
Meorijae Bldg., Suite # 403, 76, Bangbae-ro, Seocho-gu, Seoul 06704, Korea
TEL: +82-2-584-0185   FAX: +82-2-586-4582   E-mail: ceramic@kcers.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Ceramic Society.                      Developed in M2PI