A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance
A colloidal processing route has been developed for the pressureless sintering of dense SiC with a low content of sintering additives. In this route, a sol-gel solution precursor of the sintering additives is deposited onto the surface of the SiC particles, achieving a uniform distribution of the si...
| Main Authors: | , , , |
|---|---|
| Format: | Journal Article |
| Published: |
Elsevier Ltd
2012
|
| Online Access: | http://hdl.handle.net/20.500.11937/63165 |
| _version_ | 1848761012155580416 |
|---|---|
| author | Ortiz, A. Borrero-López, O. Quadir, Md Zakaria Guiberteau, F. |
| author_facet | Ortiz, A. Borrero-López, O. Quadir, Md Zakaria Guiberteau, F. |
| author_sort | Ortiz, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | A colloidal processing route has been developed for the pressureless sintering of dense SiC with a low content of sintering additives. In this route, a sol-gel solution precursor of the sintering additives is deposited onto the surface of the SiC particles, achieving a uniform distribution of the sintering additives in the green compact. This in turn promotes complete densification at short sintering times, which is not otherwise achievable when the batch is prepared by the standard method of mechanically mixing powders. It is also shown that the resulting ceramic has improved sliding-wear resistance compared to its counterpart prepared by the classical method, with essentially the same rate of mild and severe wear but a notably delayed transition from the mild to the severe wear regimes. This improvement is attributed to the reduction in the microstructural defect size achieved by the colloidal processing. Implications for the fabrication of low-cost SiC ceramics for wear-resistance applications are discussed. © 2011 Elsevier Ltd. |
| first_indexed | 2025-11-14T10:24:54Z |
| format | Journal Article |
| id | curtin-20.500.11937-63165 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T10:24:54Z |
| publishDate | 2012 |
| publisher | Elsevier Ltd |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-631652018-02-06T06:23:28Z A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance Ortiz, A. Borrero-López, O. Quadir, Md Zakaria Guiberteau, F. A colloidal processing route has been developed for the pressureless sintering of dense SiC with a low content of sintering additives. In this route, a sol-gel solution precursor of the sintering additives is deposited onto the surface of the SiC particles, achieving a uniform distribution of the sintering additives in the green compact. This in turn promotes complete densification at short sintering times, which is not otherwise achievable when the batch is prepared by the standard method of mechanically mixing powders. It is also shown that the resulting ceramic has improved sliding-wear resistance compared to its counterpart prepared by the classical method, with essentially the same rate of mild and severe wear but a notably delayed transition from the mild to the severe wear regimes. This improvement is attributed to the reduction in the microstructural defect size achieved by the colloidal processing. Implications for the fabrication of low-cost SiC ceramics for wear-resistance applications are discussed. © 2011 Elsevier Ltd. 2012 Journal Article http://hdl.handle.net/20.500.11937/63165 10.1016/j.jeurceramsoc.2011.10.052 Elsevier Ltd restricted |
| spellingShingle | Ortiz, A. Borrero-López, O. Quadir, Md Zakaria Guiberteau, F. A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance |
| title | A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance |
| title_full | A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance |
| title_fullStr | A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance |
| title_full_unstemmed | A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance |
| title_short | A route for the pressureless liquid-phase sintering of SiC with low additive content for improved sliding-wear resistance |
| title_sort | route for the pressureless liquid-phase sintering of sic with low additive content for improved sliding-wear resistance |
| url | http://hdl.handle.net/20.500.11937/63165 |