Mechanisms of incipient chemical reaction between Ca(OH)2 and SiO2 under moderate mechanical stressing i: A solid state acid-base reaction and charge transfer due to complex formation

Tomoyuki Watanabe, Tetsuhiko Isobe, Mamoru Senna

Research output: Contribution to journalArticle

45 Citations (Scopus)

Abstract

Mechanisms of an incipient reaction between Ca(OH)2 and SiO2 under mechanical stressing are studied mainly by detailed infrared (IR), X-ray photoelectron (XPS), and solid state 1HNMR spectroscopies. Pretreatments by H-D exchange, adsorption of pyridine or ammonia were carried out prior to IR spectroscopy. From the comparison between the separate and mixed-milling, a solid state acid-base reaction and simultaneous dehydration are revealed. Subsequent charge transfer, confirmed by XPS, leads to the formation of a precursor of complex oxides involving Ca-O-Si bonding.

Original languageEnglish
Pages (from-to)74-80
Number of pages7
JournalJournal of Solid State Chemistry
Volume122
Issue number1
DOIs
Publication statusPublished - 1996 Feb 15

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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