Microwave Sintering of Al_2O_3-ZrO_2-WC-Co Cermets
Composite powders of nanocrystalline WC-10Co （15wt%）,Y2O3 （8mol%） stabilized nanocrystalline ZrO2 （30wt%）,industrial cobalt powder （4.5wt%） and submicron Al2O3 （55wt%） composite powders were fabricated by high-energy ball-milling process.The nanocomposite powders were consolidated by microwave sinte...
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| Veröffentlicht in: | Journal of Wuhan University of Technology. Materials science edition 2011, Vol.26 (2), p.290-292 |
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| container_title | Journal of Wuhan University of Technology. Materials science edition |
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| creator | GU Tianben LU hongzhi |
| description | Composite powders of nanocrystalline WC-10Co （15wt%）,Y2O3 （8mol%） stabilized nanocrystalline ZrO2 （30wt%）,industrial cobalt powder （4.5wt%） and submicron Al2O3 （55wt%） composite powders were fabricated by high-energy ball-milling process.The nanocomposite powders were consolidated by microwave sintering process at temperature ranged 1300℃-1550℃ for 15min,respectively.The optimum consolidation conditions,such as temperature,were researched during microwave sintering process.Vickers Hardness of the consolidated cermets was measured by using a Vickers indentation test,and density of specimens was also determined by Archimedes＇ principle.Microwave sintering process could not only increase the density of Al2O3-ZrO2-WC-Co cermets and reduce the porosity,but also inhibit abnormal grain growth. |
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Materials Science Edition</addtitle><date>2011</date><risdate>2011</risdate><volume>26</volume><issue>2</issue><spage>290</spage><epage>292</epage><pages>290-292</pages><issn>1000-2413</issn><eissn>1993-0437</eissn><abstract>Composite powders of nanocrystalline WC-10Co （15wt%）,Y2O3 （8mol%） stabilized nanocrystalline ZrO2 （30wt%）,industrial cobalt powder （4.5wt%） and submicron Al2O3 （55wt%） composite powders were fabricated by high-energy ball-milling process.The nanocomposite powders were consolidated by microwave sintering process at temperature ranged 1300℃-1550℃ for 15min,respectively.The optimum consolidation conditions,such as temperature,were researched during microwave sintering process.Vickers Hardness of the consolidated cermets was measured by using a Vickers indentation test,and density of specimens was also determined by Archimedes＇ principle.Microwave sintering process could not only increase the density of Al2O3-ZrO2-WC-Co cermets and reduce the porosity,but also inhibit abnormal grain growth.</abstract></addata></record> |
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| ispartof | Journal of Wuhan University of Technology. Materials science edition, 2011, Vol.26 (2), p.290-292 |
| issn | 1000-2413 1993-0437 |
| language | eng |
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| source | SpringerLink Journals; Alma/SFX Local Collection |
| subjects | 异常晶粒生长 烧结过程 稳定氧化锆 纳米复合粉体 纳米复合粉末 金属陶瓷 |
| title | Microwave Sintering of Al_2O_3-ZrO_2-WC-Co Cermets |
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