Stability of alumina ceramics bonded with nanoscaled alumina powder

被引：10

作者：

Hellmig, RJ ^{[1
]}

Castagnet, JF ^{[1
]}

Ferkel, H ^{[1
]}

机构：

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

来源：

NANOSTRUCTURED MATERIALS | 1999年 / 12卷 / 5-8期

关键词：

D O I：

10.1016/S0965-9773(99)00295-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanoscaled alumina particles were employed for bonding of commerical coarse-grained corundum ceramics. The nanopowder was generated by ablation of solid corundum samples with the pulsed radiation of a Nd:YAG-laser and subsequent condensation of the vapor in a controlled atmosphere. Some of the nanopowder was sandwiched between corundum discs followed by uniaxially hot pressing of the assembly in vacuum at various pressures up to 80 MPa and temperatures up to 1300 degrees C. Some of these specimens were additionally sintered in air at 1500 degrees C without load In order to determine the structure and the strength of the sample joints HR-SEM investigations and four-point bending tests were carried our. (C) 1999 Acta Metallurgica Inc.

引用

页码：1041 / 1044

页数：4

共 4 条

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