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Crystal Clamping in Lead Titanate Glass‐Ceramics
Author(s) -
LYNCH S. M.,
SHELBY J. E.
Publication year - 1984
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.1151-2916.1984.tb19729.x
Subject(s) - materials science , clamping , diffraction , curie temperature , lead titanate , phase transition , crystal structure , ceramic , x ray crystallography , mineralogy , crystal (programming language) , crystallography , composite material , ferroelectricity , condensed matter physics , chemistry , optics , dielectric , optoelectronics , mechanical engineering , programming language , physics , ferromagnetism , computer science , engineering
The primary crystalline phase developed in glass‐ceramics in the system PbO‐BaO‐TiO 2 ‐B 2 O 3 was investigated. X‐ray diffraction and dilatometry were used to identify the primary phase as essentially pure PbTiO 3 . Peak shifts observed in X‐ray diffraction patterns resulted from lattice strain due to crystal clamping, and not from (Pb, Ba) TiO 3 solid solution formation. Lattice strain was found to increase as the glass‐transition temperature of the residual glass increased above the Curie temperature of PbTiO 3 .