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Journal of the Korean Ceramic Society 1996;33(1): 101. |
| $Al_2O_3-AlN$계 입자복합체의 기계적 성질 |
| 김영우, 박홍채, 오기동 |
| 부산대학교 무기재료공학과 |
| Mechanical Properties of $Al_2O_3-AlN$ Particulate Composite |
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| ABSTRACT |
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The mechanical propertieso f sintered AlN with the addition of alumina were investigated The flexural strength of the AlN dispersed ALON specimens was higher than that of ALON and fracture toughness showed similar tendency. The high-temperature flexural strength of specimens which 50 and 64.3 mol% alumina was added to AlN was constant up to 100$0^{circ}C$ with about 290 and 420 MPa respectively but abruptly decreased at 120$0^{circ}C$ In the specimens which contained 5 and 30mol% alumina the flexural strength increased to about 14% at 100$0^{circ}C$ and did not decrease at 120$0^{circ}C$ compared to at room temperature. |
| Key words:
Mechanical properties, Sintered AlN, AlN dispersed ALON, Flexural strength, Toughness |
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