Nonstoichiometrically activated sintering for Ca1-xSr xTiO3 compound by creating point defects

Ruixing Li, Qing Tang, Shu Yin, Tsugio Sato

    Research output: Contribution to journalArticlepeer-review

    5 Citations (Scopus)


    According to both first principle and materials chemistry, an innovative method for fabricating Ca1-xSrx/TiO3 ceramics was investigated. Ca1-xSrxTiO3 was sintered at temperatures as low as 980 °C by adding 1.0 wt % Li2Si 2O5 without forming a grain boundary phase. It was considered that the sintering was promoted by self-accelerated diffusion due to the formation of point defects caused by doping with Li2Si 2O5. Consequently, a new concept of nonstoichiometrically activated sintering, which is enhanced by point defects without the help of a grain boundary phase, is systematically studied for the first time in the Ca1-xSrxTiO3-Li2Si2O 5 system.

    Original languageEnglish
    Pages (from-to)273-278
    Number of pages6
    JournalChemistry of Materials
    Issue number2
    Publication statusPublished - 2006 Jan 24

    ASJC Scopus subject areas

    • Chemistry(all)
    • Chemical Engineering(all)
    • Materials Chemistry


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