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Effects of Mullite Contents and Particle Size on Tribological Properties of Copper-iron Matrix Composites
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Baoqiang HOU, Haixia GUO, Yuxuan ZHU, Bo WANG, Jianfeng YANG
Journal of the Chinese Ceramic Society | 2020, 48(6) : 794 - 802
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Journal of the Chinese Ceramic Society | 2020, 48(6): 794-802
• Special Topic on Engineering Ceramic Materials •
Effects of Mullite Contents and Particle Size on Tribological Properties of Copper-iron Matrix Composites
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Baoqiang HOU, Haixia GUO, Yuxuan ZHU, Bo WANG, Jianfeng YANG
Affiliations
  • State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China

    • HOU Baoqiang (1988-), male, Doctoral candidate. E-mail:

About Author:

HOU Baoqiang (1988-), male, Doctoral candidate. E-mail:

Published: 2020-06-20 doi: 10.14062/j.issn.0454-5648.20190778
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Copper-iron matrix composites containing mullite were prepared by powder metallurgy. By adding 0-25% (volume fraction) industrial mullite and high purity mullite respectively, the effects of mullite contents on the mechanical properties and tribological performances of the composites were compared. Furthermore, the influences of graphite content and mullite particle size on the friction performance of the composite were studied as well. With the increase of mullite content, the relative density and bending strength of the composites decreased, although the hardness increased. The coefficient of friction (COF) rose to the highest when mullite content was 15% and the wear rate showed smallest when mullite content was 5%. Compared with high-purity mullite, industrial mullite with wide particle size distribution and various particle shapes had a negative impact on the bending strength and wear rate of the composites. With 15% (volume fraction) graphite addition, the friction coefficient of the composite containing 15% industrial mullite was 0.3-0.4, with a lower wear rate. The industrial mullite with large particle size after sieving selection were beneficial to increase the friction coefficient. However, the industrial mullite with small particle size after ball milling had little effect on increasing the friction, and the wear rate was higher.

powder metallurgy  /  copper-iron matrix composites  /  mullite  /  friction and wear
侯宝强, 郭海霞, 朱宇璇, 王波, 杨建锋. 莫来石含量及粒径对铜铁基复合材料摩擦学性能的影响. 硅酸盐学报, 2020 , 48 (6) : 794 -802 . DOI: 10.14062/j.issn.0454-5648.20190778
Baoqiang HOU, Haixia GUO, Yuxuan ZHU, Bo WANG, Jianfeng YANG. Effects of Mullite Contents and Particle Size on Tribological Properties of Copper-iron Matrix Composites[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (6) : 794 -802 . DOI: 10.14062/j.issn.0454-5648.20190778
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Year 2020 volume 48 Issue 6
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Article Info
doi: 10.14062/j.issn.0454-5648.20190778
  • Receive Date：2019-12-11
  • Online Date：2026-10-29
  • Published：2020-06-20
Article Data
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History
  • Received：2019-12-11
  • Revised：2020-02-24
Funding
Affiliations
    State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China

Corresponding:

YANG Jianfeng(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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