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Effect of Adding Transition Metal Compounds on Microstructure of Silicon Nitride
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Hongfeng LI1, Zaiyi WANG2, Song CHEN1, Feng SUN2, Yan LIN1, Siyuan DAI1, Shunshi YU1, Weiru ZHANG2, 3, Weiguo WANG1
Journal of the Chinese Ceramic Society | 2023, 51(6) : 1490 - 1498
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Journal of the Chinese Ceramic Society | 2023, 51(6): 1490-1498
• Research Articles •
Effect of Adding Transition Metal Compounds on Microstructure of Silicon Nitride
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Hongfeng LI1, Zaiyi WANG2, Song CHEN1, Feng SUN2, Yan LIN1, Siyuan DAI1, Shunshi YU1, Weiru ZHANG2, 3, Weiguo WANG1
Affiliations
  • 1.Institute of Grain Boundary Engineering, School of Materials Science and Technology, Fujian University of Technology, Fuzhou 350118, China
  • 2.Sinoma high-tech Nitride Ceramics Co., Ltd., Zibo 255022, Shandong, China
  • 3.Sinoma high-tech Materials Co., Ltd., Beijing 100021, China

    • LI Hongfeng (1997-), male, Master candidate. E-mail:

About Author:

LI Hongfeng (1997-), male, Master candidate. E-mail:

Published: 2023-06-20 doi: 10.14062/j.issn.0454-5648.20230170
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Three silicon nitride ceramic balls were prepared via hot static pressing (HIP). In addition to some conventional sintering aids like Al2O3 and Y2O3, TiN, Fe3Si and WC transition metal compounds were incorporated into the powder mixtures before ball-milling and HIP, respectively. The microstructures and mechanical properties of the silicon nitride ceramic balls prepared were investigated by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and nano indentation (NI) analysis. The results indicate that TiN additive has an effect of suppressing the formation of Si2N2O during sintering. TiN and WC additives can promote the diffusion of Al and O into silicon nitride matrix during sintering, resulting in the formation of some sialon phase. However, Fe3Si additive has little effect as mentioned above. TiN additive has an effect of refining the microstructure, thus obtaining a refined grain structure with an even size distribution. Fe3Si additive tends to produce a microstructure of long-coarse-grain intersected and bridged frame filled by grains. WC additive leads to the development of an uneven microstructure containing the coarser and finer grains. Compared to the balls containing Fe3Si or WC additives, the ball containing TiN additive has better mechanical properties, i.e., higher hardness and greater modulus of elasticity.

transition metal compounds  /  silicon nitride ceramic balls  /  microstructure  /  grain boundary segregation
李泓枫, 王再义, 陈松, 孙峰, 林燕, 代思远, 余顺仕, 张伟儒, 王卫国. 添加过渡金属化合物对氮化硅显微组织的影响. 硅酸盐学报, 2023 , 51 (6) : 1490 -1498 . DOI: 10.14062/j.issn.0454-5648.20230170
Hongfeng LI, Zaiyi WANG, Song CHEN, Feng SUN, Yan LIN, Siyuan DAI, Shunshi YU, Weiru ZHANG, Weiguo WANG. Effect of Adding Transition Metal Compounds on Microstructure of Silicon Nitride[J]. Journal of the Chinese Ceramic Society, 2023 , 51 (6) : 1490 -1498 . DOI: 10.14062/j.issn.0454-5648.20230170
Appendix
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Year 2023 volume 51 Issue 6
32
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Article Info
doi: 10.14062/j.issn.0454-5648.20230170
  • Receive Date：2023-03-19
  • Online Date：2026-10-20
  • Published：2023-06-20
Article Data
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History
  • Received：2023-03-19
  • Revised：2023-04-05
Funding
Affiliations
    1.Institute of Grain Boundary Engineering, School of Materials Science and Technology, Fujian University of Technology, Fuzhou 350118, China
    2.Sinoma high-tech Nitride Ceramics Co., Ltd., Zibo 255022, Shandong, China
    3.Sinoma high-tech Materials Co., Ltd., Beijing 100021, China

Corresponding:

WANG Weiguo (1965-), male, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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