Preparation of LSGM powders for low temperature sintering

Pyeong Seok Cho, Seung Young Park, Yoon Ho Cho, Sun Jung Kim, Yun Chan Kang, Toshiyuki Mori, Jong Heun Lee

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

La0.8Sr0.2Ga0.8Mg0.2O2.8 powders were prepared by carbonate coprecipitation and the tuning of the cation composition by a solid state reaction. The relative compositions of La, Sr, Ga, and Mg were dependent upon the supersaturation ratio (R = [(NH4)2CO3]/([La3+] + [Sr2+] + [Ga3+] + [Mg2+])) during the coprecipitation. The coprecipitation of a Sr-deficient source solution and the subsequent replenishment of SrO and MgO by ball milling were effective for accomplishing a phase-pure La0.8Sr0.2Ga0.8Mg0.2O2.8 specimen by low-temperature sintering.

Original languageEnglish
Pages (from-to)788-791
Number of pages4
JournalSolid State Ionics
Volume180
Issue number11-13
DOIs
Publication statusPublished - 2009 Jun 22

Keywords

  • Carbonate coprecipitation
  • Low-temperature sintering
  • Solid oxide fuel cell
  • Sr- and Mg-doped lanthanum gallate (LSGM)

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)
  • Condensed Matter Physics

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