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http://hdl.handle.net/2080/189
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DC Field | Value | Language |
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dc.contributor.author | Venkateswaran, T | - |
dc.contributor.author | Sarkar, D | - |
dc.contributor.author | Basu, B | - |
dc.date.accessioned | 2005-12-29T13:52:56Z | - |
dc.date.available | 2005-12-29T13:52:56Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | Wear, Vol 260, Iss 1-2, Page 1-9 | en |
dc.identifier.uri | http://hdl.handle.net/2080/189 | - |
dc.description | Copyright for the article belongs to Elsevier Science Ltd http://dx.doi.org/10.1016/j.wear.2004.11.005 | en |
dc.description.abstract | In the present work, we report the processing and properties of WC–6 wt.% ZrO2 composites, densified using the pressureless sintering route. The densification of the WC–ZrO2 composites was carried out in the temperature range of 1500–1700 °C with varying time (1–3 h) in vacuum. The experimental results indicate that significantly high hardness of 22–23 GPa and moderate fracture toughness of 5 MPa m1/2 can be obtained with 2 mol% Y-stabilized ZrO2 sinter-additive, sintered at 1600 °C for 3 h. Furthermore, the friction and wear behavior of optimized WC–ZrO2 composite is investigated on a fretting mode I wear tester. The tribological results reveal that a moderate coefficient of friction in the range from 0.15 to 0.5 can be achieved with the optimised composite. An important observation is that a transition in friction and wear with load is noted. The dominant mechanisms of material removal appear to be tribochemical wear and spalling of tribolayer. | en |
dc.format.extent | 1315401 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | Elsevier | en |
dc.subject | Tungsten carbide | en |
dc.subject | Zirconia | en |
dc.subject | Sintering | en |
dc.subject | Tribochemical wear | en |
dc.title | WC–ZrO2 composites: processing and unlubricated tribological properties | en |
dc.type | Article | en |
Appears in Collections: | Journal Articles |
Files in This Item:
File | Description | Size | Format | |
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sarkar3.pdf | 1.28 MB | Adobe PDF | View/Open |
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