Net Shaped High Performance Oxide Ceramic Parts by Selective Laser Melting

被引：201

作者：

Hagedorn, Yves-Christian ^{[1
]}

Wilkes, Jan ^{[1
]}

Meiners, Wilhelm ^{[1
]}

Konrad, Wissenbach ^{[1
]}

Poprawe, Reinhart ^{[2
]}

机构：

[1] Fraunhofer Inst Laser Technol, Steinbachstr 15, D-52074 Aachen, Germany

[2] Chair Laser Technol, D-52074 Aachen, Germany

来源：

LASER ASSISTED NET SHAPE ENGINEERING 6, PROCEEDINGS OF THE LANE 2010, PART 2 | 2010年 / 5卷

关键词：

Rapid manufacturing; additive manufacturing; Selective Laser Melting; zirconia; alumina; Al2O3/ZrO2 ceramic compound; high strength oxide ceramics; COMPONENTS;

D O I：

10.1016/j.phpro.2010.08.086

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

An additive manufacturing technique (AM) for ceramics, based on Al2O3-ZrO2 powder by means of Selective Laser Melting (SLM) is presented. Pure ceramic powder is completely melted by a laser beam yielding net-shaped specimens of almost 100% densities without any post-processing. Possible crack formation during the build-up process due to thermal stresses is prevented by a high-temperature preheating of above 1600 degrees C. Specimens with fine-grained nano-sized microstructures and flexural strengths of above 500 MPa are produced. The new technology allows for rapid freeform manufacture of complex net-shaped ceramics, thus, exploiting the outstanding mechanical and thermal properties for high-end medical and engineering disciplines. (C) 2010 Published by Elsevier B.V.

引用

页码：587 / 594

页数：8

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