Control of morphology of Zn2SiO4 by hydrothermal preparation

Q. H. Li, S. Komarneni, R. Roy

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Abstract

Pure and Mn-doped willemite, Zn2SiO4 of different morphologies and particle sizes were prepared with and without NH4OH under different hydrothermal conditions. Pure willemite was synthesized at a temperature as low as 165 °C using autogeneous pressure. The nature of the anion, silica source and the NH4OH:Zn2+ ratio played an important role in the size and morphology of the willemite phase. The presence of SO42- anions resulted in mainly equiaxed grains. Such powders are expected to be good for consolidation and in the processing of phosphors.

Original languageEnglish (US)
Pages (from-to)2358-2363
Number of pages6
JournalJournal of Materials Science
Volume30
Issue number9
DOIs
StatePublished - May 1 1995

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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