Fabrication of Nb-Si fine powders by hydriding bulk alloys directly in an arc-melting chamber

X. G. Li, K. Kikuchi, M. Sato, A. Chiba, S. Takahashi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Hydrogenation of Nb-Si alloys containing 66-88 at.% Nb was carried out in an arc-melting chamber directly after arc-melting. It occurs without any surface activation treatment for the alloys at compositions ranging from 70 to 85 at.% Nb and causes violent disintegration. In consequence, fine particles with an average particle size of 90 μm formed simultaneously. The collection ratio of particles under 100 mesh for these alloys is from 20 to 88 wt% with increasing Nb content from 70 to 85 at.%. The collected particles have a sharp-edged polygonal shape and consist of Nb hydrides and Nb5Si3 with a small amount of unknown phases.

Original languageEnglish
Pages (from-to)291-296
Number of pages6
JournalJournal of Alloys and Compounds
Volume282
Issue number1-2
DOIs
Publication statusPublished - 1999 Jan 1
Externally publishedYes

Keywords

  • Disintegration
  • Hydrogenation
  • Nb-Si alloys
  • Particles

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Fabrication of Nb-Si fine powders by hydriding bulk alloys directly in an arc-melting chamber'. Together they form a unique fingerprint.

  • Cite this