Nanostructure control of liquid-phase sintered Si<sub>3</sub>N<sub>4</sub> ceramics by spark plasma sintering
-
- HOTTA Mikinori
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
-
- HOJO Junichi
- Department of Applied Chemistry, Faculty of Engineering, Kyushu University
Bibliographic Information
- Other Title
-
- Nanostructure control of liquid-phase sintered Si3N4 ceramics by spark plasma sintering
Search this article
Abstract
Submicron-sized α-Si3N4 and nanosized amorphous Si3N4 powders were sintered by spark plasma sintering at 1700°C for holding times of 60 to 120 s at heating rates of 1.7 to 6.1°C/s with Y2O3 and Al2O3 sintering additives. The nanostructure control of liquid-phase sintered Si3N4 ceramics was achieved by selecting optimum heating schedules such as temperature, holding time and heating rate. Fully dense nanostructured β-Si3N4 ceramics with grain size of 150 nm were prepared using nanosized amorphous Si3N4 starting powder. The transformation to β-phase in Si3N4 ceramics obtained from the nanosized amorphous Si3N4 powder was more greatly accelerated than that from submicron-sized α-Si3N4 powder.
Journal
-
- Journal of the Ceramic Society of Japan
-
Journal of the Ceramic Society of Japan 117 (1372), 1302-1305, 2009
The Ceramic Society of Japan
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390282680263189760
-
- NII Article ID
- 130000304972
-
- NII Book ID
- AA12229489
-
- ISSN
- 13486535
- 18820743
-
- NDL BIB ID
- 10455291
-
- Text Lang
- en
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed