Hydrothermal synthesis of potassium titanates in Ti-KOH-H2O system

N. Masaki, S. Uchida, H. Yamane, T. Sato

    Research output: Contribution to journalArticlepeer-review

    35 Citations (Scopus)

    Abstract

    The hydrothermal oxidation of titanium metal powder was performed in concentrated potassium hydroxide solutions above 150 °C. K2Ti2O5, K4Ti3O8 and a new compound KTiO2(OH) were formed as single phase and fibrous amorphous products which transformed to K2Ti4O9 and K2Ti6O13 and K2Ti2O5 by calcination were also obtained depending on the reaction conditions. A formation diagram of products in the Ti-KOH-H2O system has been constructed at the region of KOH concentration from 0 to 90 mol·kg-1-H2O and the temperature from 150 to 350 °C.

    Original languageEnglish
    Pages (from-to)3307-3311
    Number of pages5
    JournalJournal of Materials Science
    Volume35
    Issue number13
    DOIs
    Publication statusPublished - 2000

    ASJC Scopus subject areas

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

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