Effect of hBN Content on Property and Microstructure of Si3N4-hBN Composite Ceramics

doi:10.15541/jim20160425

Abstract

Abstract:

Si₃N₄-hBN composites were prepared using hot-press method with nano-scaled powder, the influence of hBN content on density, mechanical properties, tribological properties, microstructure of Si₃N₄-hBN composites were investigated. The density and mechanical properties of composites were measured by Archimedes method, three point bending method and Vickers indentation method. The tribological properties of composites were measured by friction and wear tester. The phase composition and microstructure of composites were analyzed and observed by XRD, EDAX and SEM, LSCM. The results showed that with increase of hBN content the composites’ density gradually decreased, the composites’ porosity increased at first and then stable gradually, the composites’ mechanical performance gradually decreased. The friction tests indicated that the tribological properties of Si₃N₄-hBN and GCr15, with pair under dry friction, increased at first and then decreased sharply with the increase of hBN content. The friction coefficient and wear coefficient decreased gradually when hBN content was less than 20%, and then increased sharply when the hBN content was more than 20%. The friction coefficient reaches the lowest value of 0.31 when the hBN content was about 20%. The addition of hBN influenced the mechanical and tribological properties of Si₃N₄-hBN composites through directly influenced its microstructure.

Key words: Si3N4-hBN, density, mechanical properties, microstructure, tribological properties

CLC Number:

TQ174

ZHANG Chang-Song, LIU Qiang, CHEN Wei. Effect of hBN Content on Property and Microstructure of Si₃N₄-hBN Composite Ceramics[J]. Journal of Inorganic Materials, 2017, 32(5): 509-516.

Figures/Tables 13

Table 1 Physical and mechanical properties of Si3N4-hBN composite ceramics by hot-pressed sintering

Number	HBN/ wt%	Density /(g·cm^-3)	Relative density /%	Porosity /%	Bending strength /MPa	Vickers hardness /GPa	Fracture toughness /(MPa·m^1/2)
SN0	0	3.20	97.0	0.24	818	14.9	7.36
SN5	5	3.12	96.7	0.55	764	13.3	6.67
SN10	10	3.04	96.4	0.80	717	12.4	6.58
SN20	20	2.89	96.0	1.02	695	8.9	6. 39
SN30	30	2.79	91.2	1.08	577	6.6	5.98

Fig. 1 Corrosion surface morphologies of hot-pressed Si3N4-hBN specimens (a) Pure Si3N4(SE); (b) Si3N4-20%hBN(BSE)

Table 2 Microareas elements of EDAX analysis of pure Si3N4 ceramics

Analysis area	Elements /at%
Analysis area	Si	N	O	Al	Y
“1” area	39.72	52.91	5.36	1.57	0.42

Fig. 2 XRD patterns of Si3N4-hBN ceramic composites with different hBN contents

Fig. 3 Fracture morphologies of Si3N4-hBN ceramic composites(SEM) (a) pure Si3N4; (b) Si3N4-5wt%hBN; (c) Si3N4-10wt%hBN; (d) Si3N4-20wt%hBN; (e) Si3N4-30wt%hBN

Fig. 4 Change of friction coefficient (a) and wear coefficient (b) of SN0-SN30 and GCr15 with a pair of friction surface

Fig. 5 Friction coefficient curves of SN0/GCr15 and SN20/GCr15 with time variation

Fig. 6 Friction surface morphology of the pin (a) and disc (b) specimens of SN0/GCr15 with pair

Fig. 7 EDAX elements of friction surface of pin (a) and disc (b) and XRD analysis of debris (c)

Fig. 8 3D morphology of friction surface of SN0/GCr15 with pair

Fig. 9 Friction surface morphology of the pin (a) and disk (b) specimens of SN20/GCr15 with pair

Fig. 10 3D morphology of friction surface of SN20/GCr15 with pair

Fig. 11 EDAX elements of friction surface of (a) pin, (b) disc, and XRD pattern of debris (c)

References 20

[1]	RILEY F L.Silicon nitride and related materials.Journal of the American Ceramic Society, 2000, 83(2): 245-265.
[2]	ZIEGLER A, IDROBO J C, CINIBYLK M K, et al.Interface structure and atomic bonding characteristics in sicon nitride ceramics.Science, 2004, 306(3): 1768-1770.
[3]	ZHU C J, JIANG J, GAO L, et al.The fabrication and progress of silicon nitride ceramics.Jiangsu Ceramics, 2001, 34(3): 10-12.
[4]	ZHANG W R.Current status and progress of Si3N4-SiCp multiphase ceramic.Hebei Ceramic, 1995, 23(03): 21-24.
[5]	PETZOW G, HERRMANN M.Silicon Nitride Ceramics: Structure & Bonding. Berlin Heidelberg: Springer-Verlag, 2002, 102: 47-167.
[6]	周玉. 陶瓷材料学. 北京: 科学出版社, 2004.
[7]	李世普. 特种陶瓷工艺学. 武汉: 武汉理工大学, 2008.
[8]	ZHANG G J, ZOU J, NI D W, et al.Boride ceramics: densification, microstructure tailoring and properties improvement.Journal of Inorganic Materials, 2012, 27(3): 225-233.
[9]	DUAN X M, YANG Z, CHEN L, et al.Review on the properties of hexagonal boron nitride matrix composite ceramics.Journal of the European Ceramic Society, 2016, 36(15): 3725-3737.
[10]	SUN Y, MENG Q C, JIA D C, et al.Effect of hexagonal BN on the microstructure and mechanical properties of Si3N4 ceramics.Journal of Materials Processing Technology, 2007, 182(1): 134-138.
	CHO M W, KIM D W, CHO W S.Analysis of micromachining characteristics of Si3N4-hBN composites.Journal of the Europ- ean Ceramic Society, 2007, 27(2): 1259-1265.
[11]	WEI D Q, MENG Q C, JIA D C.Microstructure of hot pressed hBN-Si3N4 ceramic composites with Y2O3-Al2O3 sintering additive.Ceramics International, 2007, 33(2): 221-226.
[12]	WANG R G, PAN W, JIANG M N, et al.Investigation of the physical and mechanical properties of hot-pressed machinable Si3N4-hBN composites and FGM.Materials Science and Engineering: B, 2002, 90(3): 261-268.
[13]	ZOU J, ZHANG G J, SHEN Z J, et al.Ultra-low temperature reactive spark plasma sintering of ZrB2-hBN ceramics.Journal of the European Ceramic Society, 2016, 36(15): 3637-3645.
[14]	ZOU J, LIU J, ZHANG G J, et al.Hexagonal BN-encapsulated ZrB2 particle by nitride boronizing.Acta Materialia, 2014, 72(15): 167-177.
[15]	GAO L, JIN X, LI J, et al.BN/Si3N4 nanocomposite with high strength and good machinability.Materials Science and Engineering: A, 2006, 415(1): 145-148.
[16]	SKOPP A, WOYDT M.Ceramic and ceramic composite materials with improved friction and wear properties.Tribology transactions, 1995, 38(2): 233-242.
[17]	CARRAPICHANO J M, GOMES J R, SILVA R F.Tribological behaviour of Si3N4-BN ceramic materials for dry sliding applications.Wear, 2002, 253(9): 1070-1076.
[18]	CHEN W, GAO Y M, CHEN C.Tribological behavior of Si3N4-hBN ceramic materials against stainless steel under dry friction condition.Tribology, 2010, 30(3): 243.
[19]	LIZUKA T, KITA H, HIRAI T, et al.Tribological behavior of W2C nano-particle reinforced Si3N4 matrix composite.Wear, 2004, 257(9): 953-961.
[20]	YUAN L J, YAN D S, MAO Z Q.Mechanism and knetics of sintering of hot-pressed silicon nitride at lower temperatures.Journal of the Chinese Ceramic Society, 1989, 17(6): 530-536.

Effect of hBN Content on Property and Microstructure of Si₃N₄-hBN Composite Ceramics

RichHTML

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

Figures/Tables 13

References 20

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	GOU Yanzi, KANG Weifeng, WANG Pengren. Influence of Sintering Conditions on Preparation of Nearly Stoichiometric SiC Fibers with Highly Crystalline Microstructure [J]. Journal of Inorganic Materials, 2025, 40(4): 405-414.
[2]	MU Haojie, ZHANG Yuanjiang, YU Bin, FU Xiumei, ZHOU Shibin, LI Xiaodong. Preparation and Properties of ZrO₂ Doped Y₂O₃-MgO Nanocomposite Ceramics [J]. Journal of Inorganic Materials, 2025, 40(3): 281-289.
[3]	LIU Lei, GUO Ruihua, WANG Li, WANG Yan, ZHANG Guofang, GUAN Lili. Oxygen Reduction Reaction on Pt₃Co High-index Facets by Density Functional Theory [J]. Journal of Inorganic Materials, 2025, 40(1): 39-46.
[4]	FAN Wugang, CAO Xiong, ZHOU Xiang, LI Ling, ZHAO Guannan, ZHANG Zhaoquan. Anticorrosion Performance of 8YSZ Ceramics in Simulated Aqueous Environment of Pressurized Water Reactor [J]. Journal of Inorganic Materials, 2024, 39(7): 803-809.
[5]	CHEN Qian, SU Haijun, JIANG Hao, SHEN Zhonglin, YU Minghui, ZHANG Zhuo. Progress of Ultra-high Temperature Oxide Ceramics: Laser Additive Manufacturing and Microstructure Evolution [J]. Journal of Inorganic Materials, 2024, 39(7): 741-753.
[6]	JIANG Lingyi, PANG Shengyang, YANG Chao, ZHANG Yue, HU Chenglong, TANG Sufang. Preparation and Oxidation Behaviors of C/SiC-BN Composites [J]. Journal of Inorganic Materials, 2024, 39(7): 779-786.
[7]	ZHENG Yawen, ZHANG Cuiping, ZHANG Ruijie, XIA Qian, RU Hongqiang. Fabrication of Boron Carbide Ceramic Composites by Boronic Acid Carbothermal Reduction and Silicon Infiltration Reaction Sintering [J]. Journal of Inorganic Materials, 2024, 39(6): 707-714.
[8]	LI Honglan, ZHANG Junmiao, SONG Erhong, YANG Xinglin. Mo/S Co-doped Graphene for Ammonia Synthesis: a Density Functional Theory Study [J]. Journal of Inorganic Materials, 2024, 39(5): 561-568.
[9]	WU Guangyu, SHU Song, ZHANG Hongwei, LI Jianjun. Enhanced Styrene Adsorption by Grafted Lactone-based Activated Carbon [J]. Journal of Inorganic Materials, 2024, 39(4): 390-398.
[10]	XUE Yifan, LI Weijie, ZHANG Zhongwei, PANG Xu, LIU Yu. Process Control of PyC Interphases Microstructure and Uniformity in Carbon Fiber Cloth [J]. Journal of Inorganic Materials, 2024, 39(4): 399-408.
[11]	SUN Chuan, HE Pengfei, HU Zhenfeng, WANG Rong, XING Yue, ZHANG Zhibin, LI Jinglong, WAN Chunlei, LIANG Xiubing. SiC-based Ceramic Materials Incorporating GNPs Array: Preparation and Mechanical Characterization [J]. Journal of Inorganic Materials, 2024, 39(3): 267-273.
[12]	XIE Tian, SONG Erhong. Effect of Elastic Strains on Adsorption Energies of C, H and O on Transition Metal Oxides [J]. Journal of Inorganic Materials, 2024, 39(11): 1292-1300.
[13]	ZHENG Jiaqian, LU Xiao, LU Yajie, WANG Yingjun, WANG Zhen, LU Jianxi. Functional Bioadaptability in Medical Bioceramics: Biological Mechanism and Application [J]. Journal of Inorganic Materials, 2024, 39(1): 1-16.
[14]	HE Danqi, WEI Mingxu, LIU Ruizhi, TANG Zhixin, ZHAI Pengcheng, ZHAO Wenyu. Heavy-Fermion YbAl₃ Materials: One-step Synthesis and Enhanced Thermoelectric Performance [J]. Journal of Inorganic Materials, 2023, 38(5): 577-582.
[15]	WU Shuang, GOU Yanzi, WANG Yongshou, SONG Quzhi, ZHANG Qingyu, WANG Yingde. Effect of Heat Treatment on Composition, Microstructure and Mechanical Property of Domestic KD-SA SiC Fibers [J]. Journal of Inorganic Materials, 2023, 38(5): 569-576.