Synthesis and Characterization of High-Energy Ball-Milled Nanostructured Fe25Se75

被引：6

作者：

Chebli, A. ^{[1
]}

Djekoun, A. ^{[1
]}

Boudinar, N. ^{[1
]}

Benabdeslem, M. ^{[1
]}

Bouzabata, B. ^{[1
]}

Otmani, A. ^{[2
]}

Sunol, J. J. ^{[3
]}

机构：

[1] Univ Annaba, Fac Sci, Dept Phys, Lab Magnetisme & Spectroscopie Solides, Sidi Amar 23200, Algeria

[2] Univ 20 Aout 1955, Lab Phys Chim Surfaces & Interfaces, Skikda 21000, Algeria

[3] Univ Girona, Dept Fis, Girona 17071, Spain

来源：

JOM | 2016年 / 68卷 / 01期

关键词：

SE SYSTEM; FESE; DISELENIDE; TRANSFORMATION; SELENIZATION; KINETICS; GROWTH;

D O I：

10.1007/s11837-015-1682-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Iron Selenide (Fe25Se75) powders have been synthesized by mechanical alloying from pure elemental Fe and Se powders in a high-energy planetary ball mill. Morphological, compositional, structural and thermal changes during milling have been analyzed by scanning electron microscopy coupled to energy dispersive x-ray analysis, x-ray diffraction (XRD) and differential scanning calorimetry (DSC). With milling time up to 6 h, combined XRD patterns and DSC show alpha-Fe as well as some amorphous selenium. For the samples milled between 10 h and 20 h, the orthorhombic FeSe2 and beta-FeSe hexagonal nanometric phases are formed and the volume fraction of the alpha-Fe phase decreases. As for 33 h and 52 h of milling, the alpha-Fe phase completely disappears and a new phase emerges, also in nanometric scale, typical of Fe7Se8 phase.

引用

页码：351 / 361

页数：11

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