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BIBTEX RIS

Evolution of the fractal structure during sintering of SnO2 compacted sol-gel powder

1995; Elsevier BV; Volume: 97; Issue: 3 Linguagem: Inglês

10.1016/0927-7757(95)03084-q

ISSN

1873-4359

Autores

Giancarlo Espósito de Souza Brito, Celso V. Santilli, Sandra H. Pulcinelli,

Tópico(s)

Granular flow and fluidized beds

Resumo

The structural evolution during sintering of compacted SnO2 sol-gel powder was investigated using nitrogen adsorption isotherm analysis. Results show that for sintering temperatures up to 400°C the samples have a fractal pore size distribution. As the sintering temperature increases, a structural rearragement occurs, allowing an increase of the efficiency of particle packing and the reduction of fractality. Above 400°C, the pore size growth associated with grain coalescence is the main structural change observed as the sintering temperature increases.

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