Sol-gel derived powders

Sihca and Unimin Corporation. Alternatives to the natural quart2 powder, including fumed sihca, flame-hydroly2ed soot, and sol—gel-derived powder, have also been tried as feedstock for these processes (11). 

CMO-derived powders heated to 900°C, for MSS-derived powders heated to 800°C, and for sol-gel-derived powder heated to 600 C, the characteristic peaks of the solid solutions indicate complete transition to the final oxide. The IR results show a tendency similar to that of the x-ray diffraction patterns mentioned before. 

Yao K, Zhang LY, Yao X, Zhu WG (1997) Preparation and properties of barium titanate glass-ceramics sintered from sol-gel-derived powders. J Mater Sci 32(14) 3659-3665... 

The PZT and Nb-doped PZT (PZTN) ceramics were synthesized from triol sol-gel-derived powders [95]. The reagents used were zirconium(IV) propoxide and acetylacetone prepared in a dry nitrogen atmosphere. The mixture was refluxed in an oil bath at 90 °C for 2 h. The solution was then cooled down to room temperature before adding titanium(IV) isopropoxide, lead(II) acetate trihydrate, and l,l,l-tris(hydroxymethyl)ethane. The obtained gels were dried at 120 °C and thermally treated at different temperatures up to 600 °C. 

Studies on the preparation and microwave properties of Mg-doped BST ceramics sintered from sol-gel-derived powders were performed by Wang etal. [103]. 

Ganguli, D. (2005) Chapter 7 Sol-gel derived powders and bulk ceramics, in Handbook of Sol-Gel Science and Technology Processing Characterization and Applications. Vol. I. Sol-Gel Processing (ed. K. Kozuka), Kluwer Academic Publishers, pp. 149-167. 

Mg doped barium strontium titanate (BSTO) ceramics sintered from sol-gel-derived powders. /. Electroceram., 21 (1-4), 439-443. 

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