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A novel synthesis of nano-sized mullite from aluminosilicate precursors (CROSBI ID 172520)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Buljan, Iva ; Kosanović, Cleo ; Kralj, Damir A novel synthesis of nano-sized mullite from aluminosilicate precursors // Journal of alloys and compounds, 509 (2011), 32; 8256-8261. doi: 10.1016/j.jallcom.2011.05.099

Podaci o odgovornosti

Buljan, Iva ; Kosanović, Cleo ; Kralj, Damir

engleski

A novel synthesis of nano-sized mullite from aluminosilicate precursors

A novel method was proposed for the preparation of aluminosilicate-based ceramic materials by temperature induced transformation of amorphous aluminosilicates (zeolite precursors) as an alternative to conventional methods based on the thermal treatment of kaolin, feldspar and other silicate, aluminosilicate and/or oxide mixtures, or by sol–gel method. Amorphous aluminosilicate gels that are usually used as precursors for the crystallization of zeolites after exchanging their host’s cations (sodium) with ammonium cations from solution were thermally treated (at 1263 K for 3 h) and yielded a mixture of mullite and amorphous silica. Further chemical treatment of the mixture with sodium hydroxide solution yielded a pure mullite phase having particle size below 100 nm.

ceramics; mullite; aluminosilicates; nanomaterials; thermal treatment; dissolution

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Podaci o izdanju

509 (32)

2011.

8256-8261

objavljeno

0925-8388

10.1016/j.jallcom.2011.05.099

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Kemija

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