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Preparation and Crystallographic Properties of A 2+ B 2 2+ O 4 , Type Calcium and Strontium Scandates
Author(s) -
CARTER J. R.,
FEIGELSON R. S.
Publication year - 1964
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.1151-2916.1964.tb14373.x
Subject(s) - strontium , orthorhombic crystal system , crystallography , chemistry , crystal structure , x ray crystallography , calcium , materials science , diffraction , physics , optics , organic chemistry
The compounds CaSc 2 O 4 and SrSc 2 O 4 were synthesized by solid‐state reaction of the component oxides at temperatures ranging from 950° to 1400°C. Both calcium and strontium monoscandates are orthorhombic and analogous to CaFe 2 O 4 . Lattice parameters for CaSc 2 O 4 a re a o = 9.461, b o = 11.122, c o = 3.143 and for SrSc 2 O 4 , a o = 9.698, b o = 11.302, c o = 3.185. Based on four molecules per unit cell, the X‐ray density for CaSc 2 O 4 is 3.89 g per cm 3 and that for SrSc 2 O 4 is 4.59 g per cm 3 .