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Research Papers: Friction & Wear

Friction and Wear of Potassium Titanate Whisker Filled Carbon Fabric/Phenolic Polymer Composites

[+] Author and Article Information
Xinrui Zhang

State Key Laboratory of Solid Lubrication,
Lanzhou Institute of Chemical Physics,
Chinese Academy of Sciences,
No. 18, Tianshui Middle Road,
Lanzhou 730000, China
e-mail: xruiz@licp.cas.cn

Xianqiang Pei

State Key Laboratory of Solid Lubrication,
Lanzhou Institute of Chemical Physics,
Chinese Academy of Sciences,
No. 18, Tianshui Middle Road,
Lanzhou 730000, China
e-mail: xq_pei@licp.cas.cn

Qihua Wang

State Key Laboratory of Solid Lubrication,
Lanzhou Institute of Chemical Physics,
Chinese Academy of Sciences,
No. 18, Tianshui Middle Road,
Lanzhou 730000, China
e-mail: wangqh@licp.cas.cn

Tingmei Wang

State Key Laboratory of Solid Lubrication,
Lanzhou Institute of Chemical Physics,
Chinese Academy of Sciences,
No. 18, Tianshui Middle Road,
Lanzhou 730000, China
e-mail: tmwang@licp.cas.cn

1Corresponding author.

Contributed by the Tribology Division of ASME for publication in the JOURNAL OF TRIBOLOGY. Manuscript received March 27, 2014; final manuscript received October 8, 2014; published online November 12, 2014. Assoc. Editor: Zhong Min Jin.

J. Tribol 137(1), 011605 (Jan 01, 2015) (6 pages) Paper No: TRIB-14-1069; doi: 10.1115/1.4028911 History: Received March 27, 2014; Revised October 08, 2014; Online November 12, 2014

Carbon fabric/phenolic composites modified with potassium titanate whisker (PTW) were prepared by a dip-coating and hot-press molding technique, and the tribological properties of the resulting composites were investigated systematically using a ring-on-block arrangement under different sliding conditions. Experimental results showed that the optimal PTW significantly decreased the wear-rate. The worn surfaces of the composites and the transfer film formed on the counterpart steel ring were examined by scanning electron microscopy (SEM) to reveal the wear mechanisms. The transfer films formed on the counterpart surfaces made contributions to the improvement of the tribological behavior of the carbon fabric composites. The friction and wear of the filled carbon fabric composites was significantly dependent on the sliding conditions. It is observed that the wear-rate increased with increasing applied load and sliding speeds.

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References

Figures

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Fig. 1

The contact schematic for the friction couple

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Fig. 2

Friction coefficient and wear rate of PTW filled carbon fabric composites (200 N, 0.431 m/s)

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Fig. 3

Variations of the friction and wear properties of the 15 wt.% PTW filled carbon fabric composites with load

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Fig. 4

SEM images of the worn surface of PTW filled carbon fabric composites (200 N, 0.431 m/s). (a) Unfilled carbon fabric composites; (b) 5 wt.% PTW filled carbon fabric composites; (c) 15 wt.% PTW filled carbon fabric composites; and (d) 20 wt.% PTW filled carbon fabric composites

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Fig. 5

SEM images of the transfer film of PTW filled carbon fabric composites (200 N, 0.431 m/s). (a) Unfilled carbon fabric composites; (b) 5 wt.% PTW filled carbon fabric composites; (c) 15 wt.% PTW filled carbon fabric composites; and (d) 20 wt.% PTW filled carbon fabric composites

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Fig. 6

SEM images of the worn surface and transfer film of 15 wt.% PTW filled carbon fabric composites under different applied load. (a) 300 N, 0.431 m/s; (b) 500 N, 0.431 m/s; (c) transfer film of (a); and (d) transfer film of (b).

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Fig. 7

SEM images of the worn surface and transfer film of 15 wt.% PTW filled carbon fabric composites at 200 N and 0.862 m/s. (a) Worn surface and (b) transfer film of (a).

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