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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제13권 제5호
- 발행연도
- 2012.10
- 수록면
- 571 - 574 (4page)
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This study analyzed the wear characterization of Si3N4 ceramics according to the different amount of added SiO2 nano colloid. Test specimens were made by hot-press sintering at 35 MPa, 2123 K in N2 gas for 1 h. The wear tests were performed with a block on ring tester. The test conditions were as follows; (1) rotation speed of ring which has a 35 mm diameter was 50 rpm; (2) load was 9.8 N; and (3) the temperature was 25 ο C. The test results show that Si3N4 ceramics have a wear coefficient of about 1.0 and wear loss about 0.02 mm. Among the specimens used in this study, the test specimen with 1.3 wt.% SiO2 nano colloid added gave the best wear resistance because of its lowest wear coefficient and its smallest wear loss. In addition, this specimen showed the highest Vickers hardness and bending strength. The wear coefficient was in inverse relation to the hardness and bending strength.
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