Electric Pulse Assisted Rapid Consolidation of Ultrafine Grained Alumina Matrix Composites
Abstract
The densification of alumina is influenced by the electrical pulse and the starting crystal structure of alumina powder. The application of electric pulsing enhanced the densification and the level of enhancement depended on the pulsing sequence. A pure alumina specimen with >98% theoretical density was obtained in less than 10 min at 1573 K. The average grain size was 0.7 μm. Similar sintering parameters were used to synthesize alumina based nanocomposites with >99% theoretical density in 5-10 min sintering times. The electric pulse and pressure assisted sintering is a very effective way to synthesize nanocomposites in a short sintering time at lower temperatures.
Recommended Citation
R. S. Mishra and A. K. Mukherjee, "Electric Pulse Assisted Rapid Consolidation of Ultrafine Grained Alumina Matrix Composites," Materials Science and Engineering: A, Elsevier, Aug 2000.
The definitive version is available at https://doi.org/10.1016/S0921-5093(00)00772-3
Department(s)
Materials Science and Engineering
Keywords and Phrases
Alumina; Electric Pulse; Ultrafine Grained; Sintering
International Standard Serial Number (ISSN)
0921-5093
Document Type
Article - Journal
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2000 Elsevier, All rights reserved.
Publication Date
01 Aug 2000
