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Synthesis and processing of spinel powders for transparent ceramics

Suarez, M., Garcia Rocha, Victoria, Fernandez, A., Menendez, J.L. and Torrecillas, R. 2014. Synthesis and processing of spinel powders for transparent ceramics. Ceramics International 40 (3) , pp. 4065-4069. 10.1016/j.ceramint.2013.08.060

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Spinel powders have been synthesized by chemical coprecipitation using two different precursors, nitrates and chlorides, and by an oxides mixture route. It has been shown that depending on the precursors used and the synthesis conditions pure spinel nanopowder can be obtained at different temperatures and with different levels of agglomeration. According to TEM results, the chloride route allows obtaining pure and deagglomerated spinel powders after calcination at 800 °C with a submicrometer particle size. Sintered lyophilized powders obtained by a chloride route allow achieving materials with in-line transmittances close to 46% at 540 nm and 83% in the infrared range.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Engineering
Publisher: Elsevier
ISSN: 0272-8842
Last Modified: 18 Dec 2019 10:05

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