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Fabrication of dense β-SiAlON by a combination of combustion synthesis (CS) and spark plasma sintering (SPS)
Title: | Fabrication of dense β-SiAlON by a combination of combustion synthesis (CS) and spark plasma sintering (SPS) |
Authors: | Yi, Xuemei Browse this author | Watanabe, Kotaro Browse this author | Akiyama, Tomohiro Browse this author |
Keywords: | Silicides, various | Reaction synthesis | Sintering | Diffraction (electron, neutron and X-ray) | Electron microscopy, scanning |
Issue Date: | Apr-2010 |
Publisher: | Elsevier |
Journal Title: | Intermetallics |
Volume: | 18 |
Issue: | 4 |
Start Page: | 536 |
End Page: | 541 |
Publisher DOI: | 10.1016/j.intermet.2009.10.004 |
Abstract: | First, β-SiAlON (z = 1, 2, 3, and 4) powders were combustion-synthesized from well-mixed powders of Si, Al, and SiO2 under a low nitrogen pressure of 1 MPa using β-SiAlON (calculated z = 1.14) as the diluent. Then, the synthesized powders were subjected to spark-plasma-sintering (SPS) in vacuum for 12 min under a stress of 50 MPa and a temperature of 1600℃, without any sintering additives. X-ray diffraction (XRD) analysis revealed that a small amount of unreacted phase was found in the combustion-synthesized powders; however, pure β-SiAlON compacts were successfully obtained after SPS. The relative density of the products obtained by subjecting the combustion-synthesized powders to SPS was more than 99% of theoretical density. |
Type: | article (author version) |
URI: | http://hdl.handle.net/2115/42983 |
Appears in Collections: | エネルギー・マテリアル融合領域研究センター (Center for Advanced Research of Energy and Material) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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Submitter: 秋山 友宏
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