Compositional study and properties characterisation of alkaline earth feldspar glasses and glass-ceramics

Research output: Contribution to journalArticlepeer-review

32 Scopus citations

Abstract

Fields in which metastable crystallisation of feldspars may occur as a result of heterogeneous nucleation were defined at 1000° C for the systems BaO-Al2O3-SiO2, SrO-Al2O3-SiO2, and CaO-Al2O3-SiO2. The metastable fields of the above barium and calcium systems differ considerably from the respective primary liquidus fields of celsian and anorthite with the tendency for the stoichiometric compositions to be situated at the centre of the metastable region. Various physical and dielectric properties of the glasses and glass-ceramics of the three systems are presented and compared. High linear thermal expansion, high electrical resistivity, and low loss tangent and dielectric constant characterise these glass-ceramics. One of them (No. 2, table I) has, in addition, high heat resistance and translucency at high temperatures.

Original languageEnglish
Pages (from-to)855-860
Number of pages6
JournalJournal of Materials Science
Volume4
Issue number10
DOIs
StatePublished - 1 Oct 1969
Externally publishedYes

ASJC Scopus subject areas

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

Fingerprint

Dive into the research topics of 'Compositional study and properties characterisation of alkaline earth feldspar glasses and glass-ceramics'. Together they form a unique fingerprint.

Cite this