Fabrication of Plate-like Sr3Ti2O7 Particles using Molten Salt Synthesis

Sheng Jie Yang, Feng Gao, Meng Jie Qin, Qing Qing Zhang, Xi Xi Huang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

Plate-like Sr3Ti2O7 powders with anisotropy were prepared by KCl molten salt synthesis (MSS) method, the effect of different SrCO3TiO2 ratio and calcination condition on the phase transition, particle size and morphology of powders were investigated. The results show that SrTiO3phase coexist with Sr3Ti2O7 phase and SrTiO3 is the main phase as the SrCO3/TiO3 ratio is 1.15-1.25:1. Pure Sr3Ti2O7 phase can be obtained as the SrCO3/TiO2 ratio is 1.55-1.65:1. The aspect ratio of plate-like particles increases firstly and then decreases as the SrCO3/TiO2 ratio increases. The sealed and unsealed condition has no influence on the phase structure of the powders. But the aspect ratio of unsealed particles is smaller than that of sealed particle. Finally, the formation mechanism for Sr3Ti2O7 particles was discussed.

Original languageEnglish
Title of host publicationDianchi Advanced Materials Forum 2014
EditorsJin Hu, Cheng Zhang
PublisherTrans Tech Publications Ltd
Pages15-19
Number of pages5
ISBN (Electronic)9783038353348
DOIs
StatePublished - 2014
Event2014 Dianchi Advanced Materials Forum - Kunming, China
Duration: 16 Jul 201418 Jul 2014

Publication series

NameAdvanced Materials Research
Volume1058
ISSN (Print)1022-6680
ISSN (Electronic)1662-8985

Conference

Conference2014 Dianchi Advanced Materials Forum
Country/TerritoryChina
CityKunming
Period16/07/1418/07/14

Keywords

  • Aspect ratio
  • Molten salt synthesis
  • Phase transition
  • Plate-like particles
  • SrTiO

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