Synthesis of forsterite powder from zeolite precursors

Kosanović, Cleo; Stubičar, Nada; Tomašić, Nenad; Bermanec, Vladimir; Stubičar, Mirko; Ivanković, Hrvoje (2006) Synthesis of forsterite powder from zeolite precursors. Croatica Chemica Acta, 79 (2). pp. 203-208. ISSN 0011-1643

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Abstract

Powder mixtures of NH4-exchanged zeolite A and MgO, and of NH4-exchanged mordenite and MgO were used as starting materials in the synthesis of crystalline ceramic materials. Conventional ball milling was applied in order to amorphize NH4-exchanged zeolites, reduce the particle size of MgO, and produce a homogeneous mixture. Solid-state transformation of the mixtures after heating at the temperature of their phase transformations in the interval 800 degrees C - 1000 degrees C for 3 hours yielded crystalline forsterite (Mg2SiO4) with possible minor amounts of sapphirine (Mg4Al10Si2O23) in the first case, and to crystalline forsterite (Mg2SiO4) with traces of enstatite (MgSiO3) in the second case.

Item Type:	Article
Uncontrolled Keywords:	ceramics; forsterite; zeolite precursor; high energy ball-milling; solid state transformation; mg2sio4; mechanochemistry; amorphization; fiber
Subjects:	NATURAL SCIENCES > Chemistry
Divisions:	Division of Materials Chemistry
Projects:	Project title Project leader Project code Project type Istraživanje procesa kristalizacije i primjene zeolita Boris Subotić 0098060 MZOS Kristalokemija i druga svojstva nedovoljno opisanih minerala Vladimir Bermanec 506065 MZOS Struktura i dinamika na medupovršini faza Nada Stubičar 0119622 MZOS Novi materijali za posebne namjene Helena Jasna Mencer 0125019 MZOS
Depositing User:	Virna Brumnić
Date Deposited:	28 Oct 2013 15:02
URI:	http://fulir.irb.hr/id/eprint/857

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