THERMAL-STABILITY OF NANOCRYSTALLINE NICKEL ELECTRODEPOSITS - DIFFERENTIAL SCANNING CALORIMETRY, TRANSMISSION ELECTRON-MICROSCOPY AND MAGNETIC STUDIES

被引：31

作者：

CZIRAKI, A

TONKOVICS, Z

GEROCS, I

FOGARASSY, B

GROMA, I

TOTHKADAR, E

TARNOCZI, T

BAKONYI, I

机构：

[1] EOTVOS LORAND UNIV, INST GEN PHYS, H-1088 BUDAPEST, HUNGARY

[2] HUNGARIAN ACAD SCI, SOLID STATE PHYS RES INST, H-1525 BUDAPEST, HUNGARY

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1994年 / 179卷

基金：

匈牙利科学研究基金会;

关键词：

D O I：

10.1016/0921-5093(94)90261-5

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The grain-growth process of electrodeposited nanocrystalline Ni foils upon heating has been studied by differential scanning calorimetry (DSC), transmission electron microscopy (TEM) and X-ray diffraction (XRD). The direct structural observations have shown that the exothermic calorimetric peak detected at about 600 K corresponds to a grain growth process. Furthermore, the TEM pictures indicate that dislocation loops are formed during grain growth. An almost complete recovery of the Curie point has also been observed, although its correlation with the structural changes is still to be revealed.

引用

页码：531 / 535

页数：5

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