유기물 조성에 따른 알루미나 테이프의 열간 가압 거동 |
이명현, 박일석, 김대준, 이득용1 |
한국과학기술연구원 재료연구부 1대림대학 금속재료공학과 |
Effect of Organic Additive Composition on Isostatic Thermocompression Behavior of Alumina Tapes |
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ABSTRACT |
Alumina tapes, having various ratios of alumina to alumina+binder+plasticizer (a/(a+o)) and binder to binder+plasticizer(b/(b+p)), were prepared by the tape casting method. The tapes were thermocompressed varying the thermocompression parameters such as temperature, pressure, and duration time. Among the parameters, the pressure was the most influential to the tape packing density. The packing density varied in two different ways depending on the a/(a+o) ratio. For the tapes having low a/(a+o) ratio, a saturation density was reached by applying very a low pressure of 1 MPa. For tapes with high a/(a+o), on the contrary, the saturation density was obtained at a relatively high pressure. These different responses to the pressure are attributed to the fact that the rearrangement of alumina particles by the pressure becomes easy as an organic content in the tapes is high. |
Key words:
Alumina tape, Thermocompression, Binder, Plasticizer |
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