NDLI: Facile Synthesis of Nb$_{3}$Sn Via a Hydrogen Reduction Process

Content Provider	Springer Nature Link
Author	Zhu, Jun Jiao, Shuqiang Zhang, Long Li, Yanxiang Zhu, Hongmin
Copyright Year	2016
Abstract	A controllable and facile process for the preparation of Nb$_{3}$Sn intermetallic compound nanopowders using NbCl$_{5}$ and SnCl$_{2}$ vapors reduced by hydrogen has been developed. The vaporizing rates of the two chlorides are controlled by measuring their mass loss as a function of carrier gas (argon) flow rate at certain vaporization temperatures, respectively. X-ray diffraction (XRD) patterns indicate that hydrogenous Nb$_{3}$Sn products are obtained under the vaporizing rate of 0.155 g min$^{−1}$ for NbCl$_{5}$ and 0.036 g min$^{−1}$ for SnCl$_{2}$ with the hydrogen flow rate of 2100 ml min$^{−1}$ at 1273 K (1000 °C). Results of semi-quantitative analysis by X-ray fluorescence (XRF) demonstrate that the atomic ratio of Nb to Sn in the as-synthesized products is 3.48:1, and the content of (Nb + Sn) is taken up to 89.61 wt pct from the total weight of the products. The products can be purified by vacuum heat treatment. Images of transmission electron microscopy (TEM) show that the products are homogenous particles with a mean diameter of 31 nm. In addition, the reaction ratio of the chlorides and the powder yield are controllable by hydrogen flow rate.
Starting Page	286
Ending Page	293
Page Count	8
File Format	PDF
ISSN	10735615
Journal	Metallurgical and Materials Transactions B
Volume Number	48
Issue Number	1
e-ISSN	15431916
Language	English
Publisher	Springer US
Publisher Date	2016-09-09
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Mechanics of Materials Condensed Matter Physics

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