Artículos de revistas
On the synthesis of the new intermetallic phase Nd3 (Fe,W)29
Autor
JOSE ANDRES MATUTES AQUINO
CLAUDIA ISELA TORRES GARIBAY
Institución
Resumen
A novel intermetallic compound, Nd3, Fe27.5, W1.5, that shows the monoclinic
Nd3(Fe,Ti)29- type crystal structure (space group A2/m) has been obtained from
powders homogeneously mixed and processed by arc melting. A notable reduction in
the annealing time at 1100°C was obtained by using this procedure. From the Rietveld
refinement of the powder X-ray diffractogram, the phase constitution and crystal
structure were determined. The analysis shows that a 3:29 type compound is the
majority phase (90 wt.%). It coexists with α-(Fe,W) (8 wt.%) and a 1:12 type phase (2
wt.%) as minority components. SEM and EDAX analyses were performed in order to
characterize the microstructure. It was concluded that the 3:29 phase is the main
component, in agreement with the results obtained by XRD and TMA. The
Nd3Fe27.5W1.5 compund exhibits a Curie temperature of 124°C and a room temperature
saturation magnetization of 96 emu/g (at Hmax = 16 kOe).
Ítems relacionados
Mostrando ítems relacionados por Título, autor o materia.
-
Compendio de innovaciones socioambientales en la frontera sur de México
Adriana Quiroga -
Caminar el cafetal: perspectivas socioambientales del café y su gente
Eduardo Bello Baltazar; Lorena Soto_Pinto; Graciela Huerta_Palacios; Jaime Gomez -
Material de empaque para biofiltración con base en poliuretano modificado con almidón, metodos para la manufactura del mismo y sistema de biofiltración
OLGA BRIGIDA GUTIERREZ ACOSTA; VLADIMIR ALONSO ESCOBAR BARRIOS; SONIA LORENA ARRIAGA GARCIA