The effect of heating rate on the sintering of agglomerated NaNbO3 powders

The effect of heating rate on the sintering of agglomerated NaNbO3 powders, processed by the polymeric precursors method, was studied. The results showed that the presence of agglomerated powder leads to a heterogeneous microstructure, with bimodal grain size distribution, after sintering. Using a h...

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Veröffentlicht in:	Journal of materials science 1998-10, Vol.33 (19), p.4791-4795
Hauptverfasser:	LEITE, E. R, NOBRE, M. A. L, RIBEIRO, M. D, LONGO, E, VARELA, J. A
Format:	Artikel
Sprache:	eng
Schlagworte:	Agglomeration Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Exact sciences and technology Grain size Grain size distribution Heating rate Materials science Microstructure Miscellaneous Particle size distribution Prepolymers Sintering Sintering (powder metallurgy) Sodium compounds Technical ceramics
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Zusammenfassung:	The effect of heating rate on the sintering of agglomerated NaNbO3 powders, processed by the polymeric precursors method, was studied. The results showed that the presence of agglomerated powder leads to a heterogeneous microstructure, with bimodal grain size distribution, after sintering. Using a high heating rate, the sintering of agglomerated particles was inhibits, leading to a homogeneous microstructure, with single grain size distribution.
ISSN:	0022-2461 1573-4803
DOI:	10.1023/A:1004422111613