Abstract

Synthesis of microforsterite (Mg2SiO4) has been successfully done by a simple method benefiting of the local silica sands from Tanah Laut, Indonesia. The starting material was amorphous silica powder which was processed using coprecipitation method from the sands. The silica powder was obtained from a series of stages of the purification process of the sands, namely magnetic separation, grinding and soaking with HCl. The microforsterite synthesis followed the reaction of stoichiometric mole ratio mixing of 1:2 of the amorphous silica and MgO powders with 3 wt% addion of PVA as a catalyst.The mixture was calcined at temperatures between 1150-1400°C with 4 hours holding time. XRD data showed that calcination at a temperature of 1150°C for 4 hours was optimum where the weight fraction of forsterite can reach as much as 93 wt% with MgO as the secondary phase and without MgSiO3. SEM photograph of the microforsterite showed tapered morphology with a relatively homogeneous distribution.

Original languageEnglish
Title of host publication3rd International Conference on Advanced Materials Science and Technology, ICAMST 2015
EditorsRisa Suryana, Khairurrijal, Heru Susanto, Markusdiantoro, Sutikno, Kuwat Triyana
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735413726
DOIs
Publication statusPublished - 19 Apr 2016
Event3rd International Conference on Advanced Materials Science and Technology, ICAMST 2015 - Semarang, Indonesia
Duration: 6 Oct 20157 Oct 2015

Publication series

NameAIP Conference Proceedings
Volume1725
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference3rd International Conference on Advanced Materials Science and Technology, ICAMST 2015
Country/TerritoryIndonesia
CitySemarang
Period6/10/157/10/15

Keywords

  • amorphous silica
  • local silica sands and microforsterite

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