Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase-Reference-Cited by-同舟云学术

Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase

Published:2015-09-10 Issue:9 Volume:106 Page:1014-1018
ISSN:2195-8556
Container-title:International Journal of Materials Research
language:en
Short-container-title:

Author:

Sun Mengyong¹²,Li Qinggang¹²,Huang Shifeng¹²,Cheng Xin¹²

Affiliation:

1. School of Material Science and Engineering , University of Jinan , China

2. Shandong Provincial Key Laboratory of Preparation and Measurement of Building Materials , China

Abstract

Abstract β-Si3N4 whiskers with a diameter of 0.2 – 1.7 μm and length of over 100 μm were synthesized by means of microwave sintering at 1550 °C for 30 min in a flowing nitrogen atmosphere. The β-Si3N4 whiskers grew on Si3N4 substrate without catalyst by the vapor–liquid–solid mechanism. Microwave energy and Y2O3–Al2O3–ZrO2 additives played a significant role in the growth of β-Si3N4 whiskers. The microwave energy provided an orientation temperature gradient and the additives formed the low viscosity glass phase at a low eutectic temperature.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics

Link

https://www.degruyter.com/document/doi/10.3139/146.111266/pdf

Reference13 articles.

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