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Author:

Zeng, Hong (Zeng, Hong.) | Zhang, Jiuxing (Zhang, Jiuxing.) | Kuang, Chunjiang (Kuang, Chunjiang.)

Indexed by:

EI Scopus SCIE

Abstract:

A novel reaction in-situ synthesis technique was developed for preparing pure bulk polycrystalline Gd dihydride materials by combination of the hydrogen plasma metal reaction (HPMR) and spark plasma sintering (SPS). The nanoparticles of Gd hydrides were firstly prepared by HPMR. SPS process was then introduced to synthesize the bulk GdH2 materials from the nanoparticles. The pure consolidated bulk GdH2 materials were achieved after sintering at temperature 750-900 degrees C with a pressure of 50 MPa in a vacuum atmosphere. The GdH2 phase with face centered cubic (FCC) and GdH3 phase with hexagonal condensed packed (HCP) exist in the nanoparticles, and the consolidated bulk, however, is a single phase GdH2 with FCC. Subsequent annealing process can make the bulk GdH2 material transform back to pure HCP Gd. Microstructure analysis reveals that the consolidated bulk material exhibits a good microstructure. These results indicate that the HPMR-SPS process is an effective method for the synthesizing bulk GdH2 materials. (C) 2009 Elsevier Ltd. All rights reserved.

Keyword:

Thermal stability Reaction synthesis

Author Community:

  • [ 1 ] [Zeng, Hong]Adv Technol & Mat Co Ltd, China Iron & Steel Res Inst Grp, Beijing 100081, Peoples R China
  • [ 2 ] [Kuang, Chunjiang]Adv Technol & Mat Co Ltd, China Iron & Steel Res Inst Grp, Beijing 100081, Peoples R China
  • [ 3 ] [Zhang, Jiuxing]Beijing Univ Technol, Key Lab Adv Funct Mat, Minist Educ, Beijing 100022, Peoples R China

Reprint Author's Address:

  • [Zeng, Hong]Adv Technol & Mat Co Ltd, China Iron & Steel Res Inst Grp, Beijing 100081, Peoples R China

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Related Keywords:

Source :

INTERMETALLICS

ISSN: 0966-9795

Year: 2010

Issue: 3

Volume: 18

Page: 369-373

4 . 4 0 0

JCR@2022

ESI Discipline: MATERIALS SCIENCE;

JCR Journal Grade:1

CAS Journal Grade:1

Cited Count:

WoS CC Cited Count: 7

SCOPUS Cited Count: 7

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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