Ein Beitrag zur Kristallchemie dreiwertiger Seltenerdoxide Zur Stabilisierung der monoklinen B-Form / About the Crystal Chemistry of Three-Valent Rare Earth Oxides The Stabilisation of the Monoclinic B-Modification
Open Access
- 1 May 1977
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 32 (5) , 495-498
- https://doi.org/10.1515/znb-1977-0504
Abstract
Single crystals of 1—x Ho2O3 : xCaO (x = 0.07), CaHoO2.5 (A) and Ca0.5Ho1.5O2.75 (B) were prepared by high temperature reaction and investigated with X-ray single crystal data. It can be shown that small amounts of CaO stabilize the monoclinic B-Typ of rare earth oxides. Phase (A) and (B) cannot be seen as a stabilized B-type crystal because they have an new crystal structure with space group C2 2h–P 21/m, a = 656.6, b = 356.7, c = 529.4 pm, β = 92.3°; a = 650.2, b = 352.4, c = 584.5, β = 92.3°.Keywords
This publication has 0 references indexed in Scilit: