Effect of sintering additive composition on microstructure and mechanical properties of silicon nitride

Wenbo Han; Yongxia Li; Guiqing Chen; Qiang Yang

doi:10.1016/j.msea.2017.05.100

Effect of sintering additive composition on microstructure and mechanical properties of silicon nitride

Wenbo Han
, Yongxia Li^*
, Guiqing Chen
, Qiang Yang

^*Corresponding author for this work

School of Astronautics

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

63 Scopus citations

Abstract

Silicon nitride ceramics doped with four different composition of sintering additives were prepared by hot pressing (HP) sintering. The effect of CeO₂ addition and Yb₂O₃ addition on the formation temperature of liquid phase, the densification, the microstructure and the mechanical properties of Si₃N₄ ceramics were investigated. The results show that their effects are independent of each other. Furthermore, in comparison to Si₃N₄ ceramics sintered with sole lanthanide oxides, the samples sintered with both CeO₂ and Yb₂O₃ additions exhibited superior mechanical properties even with a lower sintering temperature.

Original language	English
Pages (from-to)	19-24
Number of pages	6
Journal	Materials Science and Engineering: A
Volume	700
DOIs	https://doi.org/10.1016/j.msea.2017.05.100
State	Published - 17 Jul 2017

Keywords

Lanthanide oxides
Mechanical characterization
Microstructure
Silicon nitride

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10.1016/j.msea.2017.05.100

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title = "Effect of sintering additive composition on microstructure and mechanical properties of silicon nitride",

abstract = "Silicon nitride ceramics doped with four different composition of sintering additives were prepared by hot pressing (HP) sintering. The effect of CeO2 addition and Yb2O3 addition on the formation temperature of liquid phase, the densification, the microstructure and the mechanical properties of Si3N4 ceramics were investigated. The results show that their effects are independent of each other. Furthermore, in comparison to Si3N4 ceramics sintered with sole lanthanide oxides, the samples sintered with both CeO2 and Yb2O3 additions exhibited superior mechanical properties even with a lower sintering temperature.",

keywords = "Lanthanide oxides, Mechanical characterization, Microstructure, Silicon nitride",

author = "Wenbo Han and Yongxia Li and Guiqing Chen and Qiang Yang",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = jul,

day = "17",

doi = "10.1016/j.msea.2017.05.100",

language = "英语",

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TY - JOUR

T1 - Effect of sintering additive composition on microstructure and mechanical properties of silicon nitride

AU - Han, Wenbo

AU - Li, Yongxia

AU - Chen, Guiqing

AU - Yang, Qiang

PY - 2017/7/17

Y1 - 2017/7/17

N2 - Silicon nitride ceramics doped with four different composition of sintering additives were prepared by hot pressing (HP) sintering. The effect of CeO2 addition and Yb2O3 addition on the formation temperature of liquid phase, the densification, the microstructure and the mechanical properties of Si3N4 ceramics were investigated. The results show that their effects are independent of each other. Furthermore, in comparison to Si3N4 ceramics sintered with sole lanthanide oxides, the samples sintered with both CeO2 and Yb2O3 additions exhibited superior mechanical properties even with a lower sintering temperature.

AB - Silicon nitride ceramics doped with four different composition of sintering additives were prepared by hot pressing (HP) sintering. The effect of CeO2 addition and Yb2O3 addition on the formation temperature of liquid phase, the densification, the microstructure and the mechanical properties of Si3N4 ceramics were investigated. The results show that their effects are independent of each other. Furthermore, in comparison to Si3N4 ceramics sintered with sole lanthanide oxides, the samples sintered with both CeO2 and Yb2O3 additions exhibited superior mechanical properties even with a lower sintering temperature.

KW - Lanthanide oxides

KW - Mechanical characterization

KW - Microstructure

KW - Silicon nitride

UR - https://www.scopus.com/pages/publications/85020025940

U2 - 10.1016/j.msea.2017.05.100

DO - 10.1016/j.msea.2017.05.100

M3 - 文章

AN - SCOPUS:85020025940

SN - 0921-5093

VL - 700

SP - 19

EP - 24

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Effect of sintering additive composition on microstructure and mechanical properties of silicon nitride

Abstract

Keywords

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