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Sol gel preparation, structure and thermal stability of crystalline zirconium titanate microspheres

✍ Scribed by A. K. Bhattacharya; K. K. Mallick; A. Hartridge; J. L. Woodhead

Publisher: Springer
Year: 1996
Tongue: English
Weight: 821 KB
Volume: 31
Category: Article
ISSN: 0022-2461
DOI: 10.1007/bf00355155

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✦ Synopsis

Very pure and crystalline ZrTiO4 microspheres (15-50 gm) were prepared by two sol gel methods using a zirconia sol and two types of titania sols and characterized by scanning electron microscopy, X-ray diffraction and simultaneous differential thermal and thermogravimetric analysis. On gelation of the mixed sols, microspheres of an amorphous material with Zr/Ti ratio of ,-~ 1.0 were obtained by each route. The amorphous materials obtained by the two routes transformed to fully crystalline ZrTiO4 at 500 and 600~ respectively. The high temperature thermal stabilities of these materials were also studied.

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