HIGH-STRENGTH AND HIGH-FRACTURE-TOUGHNESS CERAMICS IN THE AL2O3/LAAL11O18 SYSTEMS

被引：93

作者：

YASUOKA, M

HIRAO, K

BRITO, ME

KANZAKI, S

机构：

[1] National Industrial Research Institute of Nagoya, Nagoya, 462, Hirate-cho 1-1, Kita-ku

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1995年 / 78卷 / 07期

关键词：

D O I：

10.1111/j.1151-2916.1995.tb08899.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Control of microstructure in the Al2O3/LaAL(11)O(18) system was performed, Elongated alumina grains were formed by doping with small addition of silica, and 20 vol% lanthanaluminate was formed in situ by the reaction of LaAlO3-Al2O3 in an alumina matrix. Strengths of over 600 MPa and a high fracture toughness (6 MPa . m(1/2)) were achieved in the material with both elongated Al2O3 grains and LaAl11O18 platelets. Generally antagonistic properties such as strength and fracture toughness have been made compatible in the same ceramic system.

引用

页码：1853 / 1856

页数：4

共 10 条

[1]

Becher P.F., Microstructural Design of Toughened Ceramics, J. Am. Ceram. Soc., 74, 2, pp. 255-269, (1991)

[2]

Wei G.C., Becher P.F., Development of SiC‐Whisker‐Reinforced Ceramics, Am. Ceram. Soc. Bull., 64, 2, pp. 298-304, (1985)

[3]

Becher P.F., Hsueh C.H., Angelini P., Tiegs T.N., Toughening Behavior in Whisker‐Reinforced Ceramic Matrix Composites, J. Am. Ceram. Soc., 71, 12, pp. 1050-1061, (1988)

[4]

Campbell G.H., Ruhle M., Dalgleish B.J., Evans A.G., Whisker Toughening: A Comparison Between Aluminum Oxide and Silicon Nitride Toughened with Silicon Carbide, J. Am. Ceram. Soc., 73, 3, pp. 521-530, (1990)

[5]

Sakai H., Matsuhiro K., Furuse Y., Mechanical Properties of SiC Platelet Reinforced Ceramic Composites, Ceramic Transations, Vol. 19, Advanced Composite Materials., pp. 765-771, (1991)

[6]

Claassen T., Claussen N., pp. 715-725, (1992)

[7]

Tani E., Umebayashi S., Kishi K., Kobayashi K., Nishijima M., Gas‐ Pressure Sintering of Si3N4 with Concurrent Addition of A12O3 and 5 wt% Rare Earth Oxide: High Fracture Toughness Si3N4 with Fiber‐like Structure, Am. Ceram. Soc. Bull., 65, 9, pp. 1311-1315, (1986)

[8]

Li C.W., Yamanis J., Super‐Tough Silicon Nitride with R‐Curve Behavior, Ceram. Eng. Sci. Proc., 10, 7-8, pp. 632-645, (1989)

[9]

Chen P.L., Chen I-W., In Situ Alumina/Aluminate Platelet Composite, Journal of the American Ceramic Society, 75, 9, pp. 2610-2612, (1992)

[10]

Yasuoka M., Hirao K., Brito M.E., Kanzaki S.

← 1 →