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이홍림,이형직,김성욱 연세대학교 산업기술연구소 1998 논문집 Vol.30 No.1
Mixed powder of a commercial α-Al₂O₃and TiO₂in 1:1 molar ratio was sintered at 1550℃ for 2h and 8h, respectively. Some specimens were manufactured at the same sintering condition with ?? Synthetic powder which was reacted at 1350℃ for 4h. Heat treatment was performed at 1200℃ for various schedule. XRD was used for the phase analysis and obtaining decomposition fraction. The microstructure of the free surface was observed by SEM. As the sintering proceeded, decomposition of specimens was retarded due to the abnormal grain growth. With Avrami equation [1n(1-α)=-ktⁿ], the plot of decomposition fraction as a function of time resulted in exponent n of ~3.