Effect of alumina addition on the feldspathic porcelain bodies - Strengthening of feldspathic porcelain bodies by alumina

Noriyuki Sugiyama, Ryusuke Harada, Hideki Ishida

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Densification process, microstructure and mechanical strength of the feldspathic porcelain bodies were investigated as a function of alumina addition. A maximum flexural strength of 150 MPa was obtained by addition of 50 mass% of alumina and by subsequent firing at 1350°C. Packing ratio and flexural strength showed a linear correlation and its gradient (k-value), which indicates a degree of the effect for the reinforcement during densification, increased linearly with increasing amount of alumina. Particles of alumina added to the bodies retained the original shape and size after firing. It is considered that dispersion of alumina particles inproved the reinforcement of the bodies.

Original languageEnglish
Pages (from-to)126-130
Number of pages5
JournalJournal of the Ceramic Society of Japan
Volume105
Issue number2
DOIs
Publication statusPublished - 1997

Keywords

  • Alumina
  • Feldspathic porcelain
  • Flexural strength
  • Fracture toughness
  • Packing ratio
  • k-value

ASJC Scopus subject areas

  • Ceramics and Composites
  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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