Premium
Preparation of Void‐Free Calcium Phosphate Glass‐Ceramics
Author(s) -
Watanabe Akira,
Mitsudou Makoto,
Kihara Seiji,
Abe Yoshihiro
Publication year - 1989
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1989.tb07687.x
Subject(s) - materials science , ceramic , void (composites) , crystallization , calcium , phosphate glass , phosphate , glass ceramic , composite material , mineralogy , porous glass , porosity , chemical engineering , metallurgy , chemistry , doping , optoelectronics , organic chemistry , engineering
Voids frequently form on crystallization of calcium phosphate glasses because of the density difference between the original glass and the resulting glass‐ceramic. However, the calcium phosphate glass‐ceramic with a composition of 40CaO · 50P 2 O 5 · 10Al 2 O 3 (mol%) has a density nearly equal to that of the original glass; this is caused by the formation of AlPO 4 , which has a lower density than Ca(PO 3 ) 2 . The glass‐ceramic, being void‐free, shows improved mechanical properties.