[KSCI] Korea Science Citation Index Service

Kinetic Study Of $La_2$O_3-A1_2O_3-SiO_2$ glass infiltration into Spinel Preforms

이득용 (대림대학 재료정보공학과)
장주웅 ((주)우리동명 치과재료연구소)
김병수 ((주)우리동명 치과재료연구소)
김대준 (KIST 복합기능세라믹센터)
송요승 (한국항공대학교 항공재료공학과)

Publication Information

Journal of the Korean Crystal Growth and Crystal Technology / v.12, no.1, 2002 , pp. 31-35 More about this Journal

Abstract

Abstract Spinel powder having a particle size of 0.9 $\mu$ m was calcined for 30 min at $1300^{\circ}C$ , followed by ball milling for 4h, to obtain the spinel particle size of 3.29 $\mu$ m. The die-pressed spinel was presintered at $1100^{\circ}C$ for 2h and then lanthanum aluminosilicate glass was infiltrated at $1080^{\circ}C$ for 0~2 h to investigate the penetration kinetics in glass-spinel composite. The infiltration distance is parabolic in time due to capillarity. The strength and the fracture toughness of glassspinel composites were 317 MPa and 3.56 MPa $m^{1/2}$ respectively and dual microstructure of column (needle) and polygonal shapes as a result of recrystallization was observed due to the high calcination temperature.

Keywords

Spinel; Lanthanum-aluminosilicate glass; Melt-infiltration; Parabolic kinetic; Dual microstructure;

Citations & Related Records

Times Cited By KSCI : 2 (Citation Analysis)

Reference
Cited By KSCI

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KSCI

Kinetic Study Of glass infiltration into Spinel Preforms 스피넬 전성형체의 계 유리 침투 kinetic

Kinetic Study Of $La_2$O_3-A1_2O_3-SiO_2$ glass infiltration into Spinel Preforms