Low temperature sintering of spherical silica powder by hydrothermal hot-pressing

Kazumichi Yanagisawa, Mamoru Nishioka, Koji Ioku, Nakamichi Yamasaki

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


Powder of spherical silica particles prepared by hydrolysis of tetraethylorthosilicate was sintered by the hydrothermal hot-pressing method at low temperatures below 350°C. Densification of the powder was accelerated by the increase in reaction temperature and pressure. Formation of necks and deformation of particles were observed in fractured surface of a sintered body produced at high pressure (49MPa). Water contained in the starting powder was essential to the densification by hydrothermal hot-pressing.

Original languageEnglish
Pages (from-to)58-61
Number of pages4
JournalJournal of the Ceramic Society of Japan. International ed.
Issue number1
Publication statusPublished - 1991 Jan 1
Externally publishedYes

ASJC Scopus subject areas

  • General Engineering


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