Low temperature sintering of Al2O3 according to the amount of Bi2O3 additive considering economics
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Structural ceramics are generally superior in strength to metal at high temperatures. However, they must be sintered at hightemperatures to achieve this high strength. Therefore, lowering the sintering temperature would have economic benefits,including in terms of energy consumption. This study investigated the possibility of reducing the sintering temperature byadding bismuth oxide(Bi2O3) to the sintering of aluminium oxide(Al2O3). The amount of Bi2O3 additive was changed to 12~19.1wt.% and the sintering temperature was in the range of 850~1200 oC, and the compressive strength was evaluated under theseconditions. The addition of Bi2O3 can decrease the necessary sintering temperature by about 400 oC. Ceramic structures thatcan be low temperature sintering can save costs due to reduced manufacturing costs, replacement costs, shutdowns, etc., whichwill ensure enormous economic efficiency.
Abstract
Structural ceramics are generally superior in strength to metal at high temperatures. However, they must be sintered at hightemperatures to achieve this high strength. Therefore, lowering the sintering temperature would have economic benefits,including in terms of energy consumption. This study investigated the possibility of reducing the sintering temperature byadding bismuth oxide(Bi2O3) to the sintering of aluminium oxide(Al2O3). The amount of Bi2O3 additive was changed to 12~19.1wt.% and the sintering temperature was in the range of 850~1200 oC, and the compressive strength was evaluated under theseconditions. The addition of Bi2O3 can decrease the necessary sintering temperature by about 400 oC. Ceramic structures thatcan be low temperature sintering can save costs due to reduced manufacturing costs, replacement costs, shutdowns, etc., whichwill ensure enormous economic efficiency.
참고문헌 (20)
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