Phases in the perovskite-type LaMnO{sub 3+{delta}} solid solution and the La{sub 2}O{sub 3}-Mn{sub 2}O{sub 3} phase diagram

Journal Article · Wed Feb 01 04:00:00 EST 1995 · Journal of Solid State Chemistry

DOI:https://doi.org/10.1006/jssc.1995.1078· OSTI ID:518224

Roosmalen, J A.M. van; Vlaanderen, P van; Cordfunke, E H.P. ^[1]

---

1. Netherlands Energy Research Foundation, Petten (Netherlands); and others

The structural behavior of LaMnO{sub 3+{delta}} is described. One rhombohedral and three different orthorhombic X-ray patterns have been observed. The largest influence on the structure is the overall amount of Mn{sup 4+}, but the La:Mn ratio and the temperature also have a significant influence. In the pseudobinary La{sub 2}O{sub 3}-Mn{sub 2}O{sub 3} phase diagram, LaMnO{sub 3+{delta}} is the only compound containing both La and Mn. This is not a line compound since a solubility range was observed on both the La-rich and the Mn-rich sides.

• OSTI ID: 518224
• Journal Information: Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 2 Vol. 114; ISSN 0022-4596; ISSN JSSCBI
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CRYSTALLIZATION
LANTHANUM OXIDES
MANGANESE OXIDES
PEROVSKITE
PHASE DIAGRAMS
SOLID SOLUTIONS