Effect of sintering additive composition on microstructure, thermal and mechanical property of multi-step spark plasma sintered silicon nitride

被引：2

作者：

Li, Yongxia ^{[1
]}

Shi, Jiaxin ^{[1
]}

Man, Chao ^{[1
]}

Han, Jiayi ^{[1
]}

机构：

[1] Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin, Peoples R China

来源：

MATERIALS CHEMISTRY AND PHYSICS | 2023年 / 307卷

基金：

中国国家自然科学基金;

关键词：

Ceramics; Characterization; Mechanical property; Sintering; ANISOTROPIC GRAIN-GROWTH; CERAMICS; SI3N4;

D O I：

10.1016/j.matchemphys.2023.128211

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dense silicon nitride composites were fabricated by multi-step spark plasma sintering (SPS). As the induced phase, 6 wt% Mo was added and related with the unadulterated & beta;-Si3N4 seeds produced by the in-situ reaction during the sintering process. Si3N4 samples sintered with 7 mol% CeO2 and Yb2O3 by multi-step SPS exhibited a higher mechanical property, namely, a bending strength of 981 MPa and a fracture toughness of 8.85 MPa m1/2, while the thermal diffusivity was lower than that for Si3N4 samples sintered with 7 mol% CeO2 (27.77 mm2/s). The result was attributed primarily to the fully phase transformation and the abnormal growth of large & beta;-Si3N4 grains, resulted from a longer time of solution-reprecipitation process during SPS.

引用

页数：6

共 27 条

[1] Influence of additives on anisotropic grain growth in silicon nitride ceramics [J].

Becher, P. F. ;

Painter, G. S. ;

Shibata, N. ;

Satet, R. L. ;

Hoffmann, M. J. ;

Pennycook, S. J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 422 (1-2) :85-91

[2] Spark plasma sintering: A powerful tool to develop new silicon nitride-based materials [J].

Belmonte, M. ;

Gonzalez-Julian, J. ;

Miranzo, P. ;

Osendi, M. I. .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2010, 30 (14) :2937-2946

[3] Investigation on mechanical properties and microstructure of silicon nitride ceramics fabricated by spark plasma sintering [J].

Cao, Liyan ;

Wang, Zhenhua ;

Yin, Zengbin ;

Liu, Kui ;

Yuan, Juntang .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2018, 731 :595-602

[4] MICROSTRUCTURE OF SILICON-NITRIDE CERAMICS SINTERED WITH RARE-EARTH-OXIDES [J].

GOTO, Y ;

THOMAS, G .

ACTA METALLURGICA ET MATERIALIA, 1995, 43 (03) :923-930

[5] Spark plasma sintering of novel ZrB2-SiC-TiSi2 composites with better mechanical properties [J].

Gupta, Neha ;

Mukhopadhyay, Amartya ;

Pavani, K. ;

Basu, Bikramjit .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2012, 534 :111-118

[6] Effect of sintering additive composition on microstructure and mechanical properties of silicon nitride [J].

Han, Wenbo ;

Li, Yongxia ;

Chen, Guiqing ;

Yang, Qiang .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2017, 700 :19-24

[7] Ordered coalescence of nanocrystallites contributing to the rapid anisotropic grain growth in silicon nitride ceramics [J].

Hu, Jianfeng ;

Shen, Zhijian .

SCRIPTA MATERIALIA, 2013, 69 (03) :270-273

[8] A review of multi-physical fields induced phenomena and effects in spark plasma sintering: Fundamentals and applications [J].

Hu, Zheng-Yang ;

Zhang, Zhao-Hui ;

Cheng, Xing-Wang ;

Wang, Fu-Chi ;

Zhang, Yi-Fan ;

Li, Sheng-Lin .

MATERIALS & DESIGN, 2020, 191

[9]

Imamura H, 2000, J AM CERAM SOC, V83, P495, DOI 10.1111/j.1151-2916.2000.tb01223.x

[10] Role of oxygen on the interfacial adsorption sites of Lu and La in β-Si3N4 [J].

Jiang, Yun ;

Ma, Ying ;

Garofalini, Stephen H. .

ACTA MATERIALIA, 2014, 66 :284-292

← 1 2 3 →