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Vol.29, No.10, 1033 ~ 1039, 1991
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| Title |
| A Study on the Thermal Properties of Alx - Si - 2 Cu - 1 Mg / y Al2O3 ( x = 6 , 12 , 18 , y = O - 10 wt.% ) Composite materials |
| 권혁무Hyuk Moo Kown, 박헌범Houn Bum Park, 박상준Sang Joon Park, 박창선Chang Sun Park, 노무근Moo Kun Roh |
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| Abstract |
| The purpose of this study is to obtain basic information on the density, the coefficient of thermal expansion and the thermal conductivity of compocasted Al-xSi-2 Cu-1 Mg/y Al₂O₃,(x=6, 12, 18, y=0∼10wt.%) composites. With the content of Al₂O₃ particaes, the density, the thermal expansion coefficient and the themal conductivity decrease. The coefficient of thermal expension between 20 and 300℃ is 22×10^(-6)∼19.7×10^(-6)/℃ for the alloy with 0wt.% Al₂O₃ and 17.8×10^(-6)∼15.4×10^(-6)/℃ for the composite with 10wt% Al₂O₃. The thermal conductivity at 300℃ is 121∼169 w·m^(-1)·k^(-1) for the alloy(y=0) and 99∼120 w·m^(-1)·k^(-1) for the composite(y=10) |
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