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Fabrication of dense β-SiAlON by a combination of combustion synthesis (CS) and spark plasma sintering (SPS)

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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
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)
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)

Submitter: 秋山 友宏

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