On Sintering Stress in Complex Powder Compacts
Microstructural evolution during sintering can be simulated using the Potts kinetic Monte Carlo model. This model simulates detailed evolution of the powder particles, pore shapes, neck growth, and other microstructural features with sufficient resolution over a sufficiently large compact so that in...
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| Veröffentlicht in: | Journal of the American Ceramic Society 2012-08, Vol.95 (8), p.2372-2382 |
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| container_title | Journal of the American Ceramic Society |
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| creator | Cardona, Cristina G. Tikare, Veena Patterson, Burton R. Olevsky, Eugene |
| description | Microstructural evolution during sintering can be simulated using the Potts kinetic Monte Carlo model. This model simulates detailed evolution of the powder particles, pore shapes, neck growth, and other microstructural features with sufficient resolution over a sufficiently large compact so that interfacial energies and curvatures of a statistically representative sample of surfaces in a complex compact can be obtained from the simulations. In this work, we present a technique based on measuring curvature of surfaces to obtain sintering stress of sintering powder compacts with arbitrarily complex geometries of powder size and powder shape distributions. The method is applied to three distinct powder compacts with very different sintering behavior to obtain sintering stress for each of these cases. The sintering stress for the three simulated cases were distinct and dependent on the geometric microstructural details of the powder compacts. |
| doi_str_mv | 10.1111/j.1551-2916.2012.05164.x |
| format | Article |
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Am. Ceram. Soc</addtitle><date>2012-08</date><risdate>2012</risdate><volume>95</volume><issue>8</issue><spage>2372</spage><epage>2382</epage><pages>2372-2382</pages><issn>0002-7820</issn><eissn>1551-2916</eissn><coden>JACTAW</coden><abstract>Microstructural evolution during sintering can be simulated using the Potts kinetic Monte Carlo model. This model simulates detailed evolution of the powder particles, pore shapes, neck growth, and other microstructural features with sufficient resolution over a sufficiently large compact so that interfacial energies and curvatures of a statistically representative sample of surfaces in a complex compact can be obtained from the simulations. In this work, we present a technique based on measuring curvature of surfaces to obtain sintering stress of sintering powder compacts with arbitrarily complex geometries of powder size and powder shape distributions. The method is applied to three distinct powder compacts with very different sintering behavior to obtain sintering stress for each of these cases. The sintering stress for the three simulated cases were distinct and dependent on the geometric microstructural details of the powder compacts.</abstract><cop>Columbus</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1111/j.1551-2916.2012.05164.x</doi><tpages>11</tpages></addata></record> |
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| language | eng |
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| source | Access via Wiley Online Library |
| subjects | Computer simulation Curvature Evolution Geometry Mathematical analysis Microstructure Monte Carlo methods Monte Carlo simulation Powder compacts Simulation Sintering Sintering (powder metallurgy) Stress analysis Stresses |
| title | On Sintering Stress in Complex Powder Compacts |
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