Phase diagram of the system Li/sub 2/CrO/sub 4/-K/sub 2/CrO/sub 4/

Journal Article · Sat Jan 14 23:00:00 EST 1978 · J. Solid State Chem.; (United States)

DOI:https://doi.org/10.1016/0022-4596(78)90068-3· OSTI ID:5441448

Karnowsky, M M; Clark, R P; Biefeld, R M

The Li/sub 2/CrO/sub 4/-K/sub 2/CrO/sub 4/ phase diagram was determined by use of differential thermal analyses with confirmation by high-temperature x ray diffraction. The outstanding features are the formation of a eutectic composition of approx. 22.5 mole % K/sub 2/CrO/sub 4/ between Li/sub 2/CrO/sub 4/ and the doublet salt, delta-Li/sub 2/CrO/sub 4/.K/sub 2/CrO/sub 4/, at 390/sup 0/C; the formation of a congruently melting double salt Li/sub 2/CrO/sub 4/.K/sub 2/CrO/sub 4/ with three solid state allotropic forms, ..gamma.., delta, and epsilon, the d spacings and colors of which are given; and the formation of a eutectic composition at approx. 54 mole % K/sub 2/CrO/sub 4/ between ..cap alpha..K/sub 2/CrO/sub 4/ and the doublet salt, ..gamma..-Li/sub 2/CrO/sub 4/.K/sub 2/CrO/sub 4/, at 525/sup 0/C. 2 figures, 2 tables.

• Research Organization: Sandia Labs., Albuquerque, NM
• OSTI ID: 5441448
• Journal Information: J. Solid State Chem.; (United States), Journal Name: J. Solid State Chem.; (United States) Vol. 23:1-2; ISSN JSSCB
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALI METAL COMPOUNDS
CHALCOGENIDES
CHROMIUM COMPOUNDS
CHROMIUM OXIDES
COHERENT SCATTERING
COLOR
DATA
DATA FORMS
DIAGRAMS
DIFFERENTIAL THERMAL ANALYSIS
DIFFRACTION
EUTECTICS
EXPERIMENTAL DATA
GRAPHS
INFORMATION
LITHIUM COMPOUNDS
LITHIUM OXIDES
NUMERICAL DATA
OPTICAL PROPERTIES
ORGANOLEPTIC PROPERTIES
OXIDES
OXYGEN COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
POTASSIUM OXIDES
SCATTERING
THERMAL ANALYSIS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION