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A new model for initial sintering of oxide powders under controlled gaseous atmosphere

Abstract : Initial sintering of oxide powders annealed at moderate temperatures corresponds to a surface area reduction or particle growth without increase in density and mechanical toughness of the material. Application of ultrafine oxide powders in the field of catalysis requires a good thermal stability. More often such materials do not exhibit the appropriate high surface area during a long period at temperatures in the range 800-1200 K. The decrease in surface area as a function of time has already been studies by several authors, as for example, in the case of MgO ,ZnO and transition alumina...
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https://hal-emse.ccsd.cnrs.fr/emse-00610478
Contributor : Andrée-Aimée Toucas <>
Submitted on : Friday, July 22, 2011 - 10:33:19 AM
Last modification on : Wednesday, June 24, 2020 - 4:18:16 PM

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  • HAL Id : emse-00610478, version 1

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Michèle Pijolat, Michel Soustelle. A new model for initial sintering of oxide powders under controlled gaseous atmosphere. Seventh Round Table Conference on Sintering, Aug 1989, Herceg-Novi, pp.83-90. ⟨emse-00610478⟩

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