대한치과보철학회지 (The Journal of Korean Academy of Prosthodontics)
- 제34권2호
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- Pages.309-319
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- 1996
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- 0301-2875(pISSN)
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- 2005-3789(eISSN)
압자압입법에 의한 치과용 도재의 파괴인성 평가
AN EVALUATION OF FRACTURE TOUGHNESS OF DENTAL CERAMICS BY INDENTATION FRACTURE METHOD
- Ahn, Seung-Geun (Dept. of prosthodonties, School of Dentistry, Chonbuk University) ;
- Lee, Ju-Hyung (Dept. of Dental Materials, School of Dentistry, Chonbuk University) ;
- Bae, Tae-Sung (Dept. of Dental Materials, School of Dentistry, Chonbuk University)
- 발행 : 1996.11.01
초록
This study was performed to evaluate the fracture toughness of seven commercially available dental ceramics by indentation fracture method. All specimens were fabricated to the final dimensions of approximately 12mm in diameter 2mm in thickness. The characte-ristic indentation dimensions of Vickers or Knoop indentation were measured to calculate the fracture toughness values and Young’s moduli. The results obtained were summarized as follows; 1. Young’s modulus and Vickers hardness of Vita In-Ceram showed the maximum values of
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