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Phase‐transition variation with composition in solid solutions of K 2 Cd 2 (SO 4 ) 3 with Tl 2 Cd 2 (SO 4 ) 3
Author(s) -
Sutera A.,
Nassau K.,
Abrahams S. C.
Publication year - 1981
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s0021889881009412
Subject(s) - solid solution , composition (language) , phase transition , variation (astronomy) , materials science , mineralogy , crystallography , chemistry , physics , thermodynamics , metallurgy , linguistics , philosophy , astrophysics
Polycrystalline samples of (K x Tl 1 − x ) 2 Cd 2 (SO 4 ) 3 have been prepared with x = 0[0.125]1.0. The phase transition temperature, liquidus and solidus temperatures, lattice parameters and unit‐cell volume at 298 K have been determined for each composition. The phase transition temperature varies linearly with x for 0.125 ≤ x ≤ 1.0, and the solidus curve varies linearly with x over the entire range. Mixed crystals are cubic at 298 K for x ≤ 0.645 and are orthorhombic at higher values of x . The cubic lattice parameter varies linearly with x for 0.125 ≤ x ≤ 0.645, the lengths of the orthorhombic a , b and c axes vary linearly with x for 0.645≤ x ≤ 1.0, and the unit‐cell volume varies linearly with x for 0.125≤ x ≤ 1.0.