ChemInform Abstract: Crystal Structures and Magnetic Properties of Nd(Fe,M)12Cx and Nd(Fe,M) 12CxNy (M: Mo, Ti, V) Prepared by Cast Method.
Abstract
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ChemInform Abstract
The title carbides and carbonitrides are prepared from NdC2, Nd, Fe, and M and subsequent plasma nitriding and characterized by XRD, chemical analysis, and magnetic measurements. With increasing carbon and/or nitrogen content, the cell volumes of Nd(Fe,M)12Cx (M: Mo, V) and Nd(Fe,M)12CxNy increase while that of NdFe11TiCx decreases. The Tc values of NdFe10M2Cx (M: Mo, V) are elevated with increasing C contents and unit cell volumes but show no distinct changes for NdFe11TiCx. The carbonitrides exhibit increased Tc values compared to the parent carbides. Thus the Tc values do not depend on the species ( C or N) of the interstitial X elements in Nd(Fe,M)12Xy compounds.
