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Kinetic Aspects of the Formation of Lead Zirconium Titanate
Luleå tekniska universitet.
Quartz et Silice Research Institute.
Quartz et Silice Research Institute.
1996 (Engelska)Ingår i: Journal of the European Ceramic Society, ISSN 0955-2219, E-ISSN 1873-619X, Vol. 16, nr 12, s. 1293-1998Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The kinetics of the second calcination step in the formation of PZT solid solution (with perovskite ABO3 lattice) has been investigated by using two different particle sizes of the B-site precursor (1·91 and 5·08 μm), the finer size being obtained by prolonged milling. In-situ analysis performed by high-temperature X-ray diffractometry in a non-isothermal mode (20-800°C) revealed a reduction of the calcination temperature by 100°C with a decrease in particle size of the precursor. In order to clarify the mechanism of the solid-state reaction to PZT, isothermal heat treatment of the mixtures was performed in the temperature range 540-700°C. The activation energies for the fine and the coarse powders were estimated as 150 and 210 kJ mol 1 respectively, and the reaction was found to follow the Jander model for diffusion-controlled solid-state reaction kinetics

Ort, förlag, år, upplaga, sidor
1996. Vol. 16, nr 12, s. 1293-1998
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URN: urn:nbn:se:ltu:diva-13143DOI: 10.1016/0955-2219(96)00061-1ISI: A1996VT93600002Scopus ID: 2-s2.0-13544251684Lokalt ID: c52cb890-f3ee-11db-ac9f-000ea68e967bOAI: oai:DiVA.org:ltu-13143DiVA, id: diva2:986095
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Godkänd; 1996; 20070426 (cira)Tillgänglig från: 2016-09-29 Skapad: 2016-09-29 Senast uppdaterad: 2018-07-10Bibliografiskt granskad

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