| Al2TiO5가 첨가된 쾌삭(快削) SiC 세라믹스 |
| 김일수, 박정현, 이원재, 이강호1 |
동의대학교 융합부품공학과
1(주) 단단 |
| Machinable SiC Ceramics with Addition of Al2TiO5 |
| Il Soo Kim, Jeong Hyun Park, Won Jae Lee, Kang Ho Lee1 |
Department of Materials and Components Engineering, Dongeui University
1Dandan Materials |
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| ABSTRACT |
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Machinable SiC ceramics are prepared with the addition of $Al_2TiO_5$. Ready-to-press SiC and $Al_2TiO_5$ powders are mixed and pressureless sintered at $1750^{circ}C$ and $1850^{circ}C$ for 1 h. The weight ratios of the SiC and $Al_2TiO_5$ powders are 100 : 0, 100 : 10, and 100 : 20. After sintering, only SiC peaks are detected in the X-ray diffraction analyses. The density, strength, and grain size of the SiC increase with increases in the $Al_2TiO_5$ content and sintering temperature. The $Al_2TiO_5$-doped specimens are easy to micro-hole machine. Based on the density and strength data, the ceramics sintered at $1850^{circ}C$ can be used as machinable ceramics. |
| Key words:
SiC, $Al_2TiO_5$, Machinable ceramics, Pressureless sintering |
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