Using nanoscaled powder as an additive in coarse-grained powder

被引：14

作者：

Hellmig, RJ ^{[1
]}

Ferkel, H ^{[1
]}

机构：

[1] Tech Univ Clausthal, Inst Werkstoffkunde & Werkstofftech, D-38678 Clausthal Zellerfeld, Germany

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2001年 / 84卷 / 02期

关键词：

D O I：

10.1111/j.1151-2916.2001.tb00647.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：

Nanoscaled Al2O3 powder is used as additive in coarse-grained Al2O3 green bodies. Its influence on the green density is investigated. The potential effect of powder mixing on the green density is described by a model for multimodal powder mixtures that predicts the powder composition for maximum green body density. The model is applied to bimodal and trimodal mixtures with one of the components being nanopowder. The calculated relative densities are compared with experimental results. Furthermore, sintering experiments are conducted to investigate the influence of the amount of nanoscaled powder on the sintered densities of bimodal bodies.

引用

页码：261 / 266

页数：6

共 13 条

[1] BRONSTEIN IN, 1985, TASCHENBUCH MATH, P231
[2] Bonding of alumina ceramics with nanoscaled alumina powders
Ferkel, H
Riehemann, W
[J]. NANOSTRUCTURED MATERIALS, 1996, 7 (08): : 835 - 845
[3] Effect of nanopowder deagglomeration on the densities of nanocrystalline ceramic green bodies and their sintering behaviour
Ferkel, H
Hellmig, RJ
[J]. NANOSTRUCTURED MATERIALS, 1999, 11 (05): : 617 - 622
[4] Grading aggregates I-Mathematical relations for beds of broken solids of maximum density
Furnas, CC
[J]. INDUSTRIAL AND ENGINEERING CHEMISTRY, 1931, 23 : 1052 - 1058
[5] FURNAS CC, 1928, 2891 US BUR MIN
[6] PACKING OF BIMODAL MIXTURES OF COLLOIDAL SILICA
GAUTHIER, FGR
DANFORTH, SC
[J]. JOURNAL OF MATERIALS SCIENCE, 1991, 26 (22) : 6035 - 6043
[7] PREDICTION OF SINTERED DENSITY FOR BIMODAL POWDER MIXTURES
GERMAN, RM
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (05): : 1455 - 1465
[8] Stability of alumina ceramics bonded with nanoscaled alumina powder
Hellmig, RJ
Castagnet, JF
Ferkel, H
[J]. NANOSTRUCTURED MATERIALS, 1999, 12 (5-8): : 1041 - 1044
[9] Hellmig RJ, 1999, PHYS STATUS SOLIDI A, V175, P549, DOI 10.1002/(SICI)1521-396X(199910)175:2<549::AID-PSSA549>3.0.CO
[10] 2-#

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