Preparation of Sintered ATZ by Sol-Gel Process and Properties

Han, Kyoung Ran; 임경란; Park, Sun Jin; 박선진; Hong, Kug-Sun; 홍국선; Jun, Hyung Woo; 전형우

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P-ISSN1225-0163
E-ISSN2288-8985
SCOPUS, ESCI, KCI

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P-ISSN 1225-0163
E-ISSN 2288-8985

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Vol.6, No.2

PubReader Citation

Preparation of Sintered ATZ by Sol-Gel Process and Properties

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985

1993, v.6 no.2, pp.225-229

Han, Kyoung Ran
Park, Sun Jin
Hong, Kug-Sun
Jun, Hyung Woo

Han, K. R., Park, S. J., Hong, K., & Jun, H. W. (1993). Preparation of Sintered ATZ by Sol-Gel Process and Properties. , 6(2), 225-229.

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Abstract

ATZ was prepared by adding an alumina sol equivalent to 2wt% as $Al_2O_3$ to an aqueous slurry of alumina (AKP-30) and zirconia (TZ-2Y or TZ-0Y) in the range of 10-30ATZ, followed by gelation, calcination, and sintereing between $1450^{\circ}C{\sim}1550^{\circ}C$ for 2h. They showed excellent microstructure with alumina grains of <$0.5{\mu}m$ and>99% of the theoretical density. Fracture toughness of ${\sim}8MPa{\cdot}m^{1/2}$ was observed around 20ATZ which was higher than $6MPa{\cdot}m^{1/2}$ obtainable by ball-milling.