Fabrication of bimodal porous alumina ceramics

被引：52

作者：

Han, YS ^{[1
]}

Li, JB ^{[1
]}

Chen, YJ ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Mat Sci & Engn, State Key Lab New Ceram & Fine Proc, Beijing 100084, Peoples R China

来源：

MATERIALS RESEARCH BULLETIN | 2003年 / 38卷 / 02期

关键词：

ceramics; mechanical properties; microstructure;

D O I：

10.1016/S0025-5408(02)01026-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An alumina foam with two kinds of pores was prepared by combining the sponge method and the pore-former method. The large pores were provided by the sponge method, and their sizes were in the range of 1-2 mm. The small pores were produced by the pore-former method with size in the micrometer range. The large pores offered a high porosity while the small pores offered a large surface area. The strength of samples sintered at different temperatures Was measured, and the effect of sintering temperature on foam strength was analyzed by discussing porosity and grain bonding area. The sampled sintered at 1550 degreesC has a compressive strength of 1.3 MPa and a porosity of 86%. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：373 / 379

页数：7

共 13 条

[1]

Brito ME, 2001, CERAM ENG SCI PROC, V22, P209

[2]

BROCKMAYER JW, 1989, Patent No. 4885263

[3] Monolithic ceramics and heterogeneous catalysts: Honeycombs and foams [J].

Carty, WM ;

Lednor, PW .

CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 1996, 1 (01) :88-95

[4] Studies on the control of porous properties in the fabrication of porous supports [J].

Chao, WJ ;

Chou, KS .

POROUS CERAMIC MATERIALS, 1996, 115 :93-108

[5]

Davis JB, 2000, J AM CERAM SOC, V83, P2369, DOI 10.1111/j.1151-2916.2000.tb01563.x

[6] Ceramic foams by powder processing [J].

Montanaro, L ;

Jorand, Y ;

Fantozzi, G ;

Negro, A .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1998, 18 (09) :1339-1350

[7]

SAGGIOWOYANSKY J, 1992, AM CERAM SOC BULL, V71, P1674

[8]

Schwartzwalder W.K., 1963, US Pat., Patent No. [3 090 094, 3090094]

[9] In situ synthesis of binderless ZSM-5 zeolitic coatings on ceramic foam supports [J].

Seijger, GBF ;

Oudshoorn, OL ;

van Kooten, WEJ ;

Jansen, JC ;

van Bekkum, H ;

van den Bleek, CM ;

Calis, HPA .

MICROPOROUS AND MESOPOROUS MATERIALS, 2000, 39 (1-2) :195-204

[10]

SHEPPARD LM, 1993, CERAM TRANS, V31, P3

← 1 2 →