화학공학소재연구정보센터
Materials Chemistry and Physics, Vol.132, No.2-3, 773-781, 2012
Apatite-structured compounds: Synthesis and high-temperature investigation
The phase transitions and thermal expansion of apatite-structured compounds with the general formula M(II)5(A(v)O(4))(3)L (M-II = Ca. Sr, Cd, Ba, Pb; A(v) = P,V, Cr, Mn; L = OH, F, Cl, Br, I) have been studied by high-temperature X-ray diffraction and differential thermal analysis. Polymorphic transition nature was explained on the basis of the structure data. Connection between thermal stability and peculiarities of thermal expansion, which were explained in assumption of composition and structure of apatites was ascertained. (C) 2011 Elsevier B.V. All rights reserved.