In-situ Toughening Multi-phase β-Si<sub>3</sub>N<sub>4</sub>/α-Sialon Ceramics

WU Anhua; GE Changchun

doi:10.13374/j.issn1001-053x.2002.06.012

Volume 24 Issue 6

Aug. 2021

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WU Anhua, GE Changchun. In-situ Toughening Multi-phase β-Si3N4/α-Sialon Ceramics[J]. Chinese Journal of Engineering, 2002, 24(6): 627-629. doi: 10.13374/j.issn1001-053x.2002.06.012

Citation:

WU Anhua, GE Changchun. In-situ Toughening Multi-phase β-Si₃N₄/α-Sialon Ceramics[J]. Chinese Journal of Engineering, 2002, 24(6): 627-629. doi: 10.13374/j.issn1001-053x.2002.06.012

WU Anhua, GE Changchun. In-situ Toughening Multi-phase β-Si3N4/α-Sialon Ceramics[J]. Chinese Journal of Engineering, 2002, 24(6): 627-629. doi: 10.13374/j.issn1001-053x.2002.06.012

Citation:

WU Anhua, GE Changchun. In-situ Toughening Multi-phase β-Si₃N₄/α-Sialon Ceramics[J]. Chinese Journal of Engineering, 2002, 24(6): 627-629. doi: 10.13374/j.issn1001-053x.2002.06.012

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In-situ Toughening Multi-phase β-Si₃N₄/α-Sialon Ceramics

doi: 10.13374/j.issn1001-053x.2002.06.012

Laboratory of Special Ceramics and P/M, UST Beijing, Beijing 100083, China

Received Date: 2001-06-12
Available Online: 2021-08-26

Abstract

Abstract

The densification behavior, phase composition, mechanical properties and microstructure of hot-pressed multi-phase β-Si₃N₄/α-Sialon ceramics were studied by XRD, mechanical measurements andSEM. The results indicated that the multi-phase β-Si₃N₄/α-Sialon ceramics mix the mechanical properties ofβ-Si₃N₄ and α-Sialon, the phase composition and mechanical properties can be tailored by adjusting the composition of start powders. Compared with a-Sialon ceramics, the strength and toughness of the multi-phase β-Si₃N₄/α-Sialon ceramics are increased by in-situ toughness because of adding the β-Si₃N₄ phase with a highaspect ratio.
- in-situ toughness,
- β-Si₃N₄,
- α-Sialon,
- multi-phase ceramic