Thermal expansion of solid solutions in apatite binary systems

Thermal expansion of solid solutions in apatite binary systems

Thermal dependencies of volume thermal expansion parameter for with thermal expansion diagrams for Pb5(PO4)3FxCl1−x. [Display omitted] •Solid solutions in three apatitic binary systems were investigated via HT-XRD.•Thermal expansion coefficients of solid solutions in the systems were calculated.•Fea...

Full description

Saved in:
Bibliographic Details
Published in:Materials research bulletin Vol. 61; pp. 47 - 53
Main Authors: Knyazev, Alexander V., Bulanov, Evgeny N., Korokin, Vitaly Zh
Format: Journal Article
Language:English
Published: United States Elsevier Ltd 01-01-2015
Subjects:
APATITES
ATOMS
Chemical synthesis
CHLORIDES
CRYSTAL STRUCTURE
DEFORMATION
FLUORIDES
Inorganic compounds
LEAD PHOSPHATES
MATERIALS SCIENCE
SOLID SOLUTIONS
SYNTHESIS
TEMPERATURE DEPENDENCE
THERMAL EXPANSION
VANADATES
X-RAY DIFFRACTION
X-ray diffraction
Thermal expansion
Inorganic compounds
Chemical synthesis
Crystal structure
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Thermal dependencies of volume thermal expansion parameter for with thermal expansion diagrams for Pb5(PO4)3FxCl1−x. [Display omitted] •Solid solutions in three apatitic binary systems were investigated via HT-XRD.•Thermal expansion coefficients of solid solutions in the systems were calculated.•Features of the thermal deformation of the apatites were described.•Termoroentgenography is a sensitive method for the investigation of isomorphism. High-temperature insitu X-ray diffraction was used to investigate isomorphism and the thermal expansion of apatite-structured compounds in three binary systems in the entire temperature range of the existence of its hexagonal modifications. Most of the studied compounds are highly expandable (αl>8×106 (K−1)). In Pb5(PO4)3F–Pb5(PO4)3Cl system, volume thermal expansion coefficient is independence from the composition at 573K. In Pb5(PO4)3Cl–Pb5(VO4)3Cl, the compound with equimolar ratio of substituted atoms has constant volume thermal expansion coefficient in temperature range 298–973K. Ca5(PO4)3Cl–Pb5(PO4)3Cl system is characterized by the most thermal sensitive composition, in which there is an equal ratio of isomorphic substituted atoms.
ISSN:0025-5408
1873-4227
DOI:10.1016/j.materresbull.2014.09.089