Published December 2016 | Version v1
Journal article Metadata-only

Experimental investigation of phase equilibria in the Nb-Si-Ta ternary system

Creators

  • 1. Xiamen Univ. (China). Fujian Provincial Key Laboratory of Materials Genome
  • 2. Xiamen Univ. (China). Dept. of Materials Science and Engineering
  • 3. Beijing Institute of Aeronautical Materials (China). Science and Technology on Advanced High Temperature Structural Materials Lab.

Description

The phase equilibria in the Nb-Si-Ta ternary system at 1 373 K, 1 473 K and 1 573 K were investigated by means of back-scattered electron imaging, electron probe microanalysis and X-ray diffraction. The isothermal sections at 1 373 K, 1 473 K and 1 573 K consist of two three-phase regions and seven two-phase regions, without any ternary compounds. The compounds of NbSi2 and TaSi2, αNb5Si3 and αTa5Si3 form continuous solid solutions, respectively. The solubilities of Nb in Ta3Si and Ta2Si phases are extremely large, whereas the solubility of Si in the β(Nb, Ta) phase is relatively small.

Additional details

Publishing Information

Journal Title
International Journal of Materials Research
Journal Volume
107
Journal Issue
12
Journal Page Range
p. 1112-1120
ISSN
1862-5282
CODEN
IJMRFV

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
48009935
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
BACKSCATTERING; CHEMICAL COMPOSITION; ELECTRON MICROPROBE ANALYSIS; LATTICE PARAMETERS; NIOBIUM ALLOYS; PHASE DIAGRAMS; SILICON ALLOYS; SOLUBILITY; TANTALUM ALLOYS; TEMPERATURE RANGE 1000-4000 K; TERNARY ALLOY SYSTEMS; X-RAY DIFFRACTION
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; CHEMICAL ANALYSIS; COHERENT SCATTERING; DIAGRAMS; DIFFRACTION; INFORMATION; MICROANALYSIS; NONDESTRUCTIVE ANALYSIS; SCATTERING; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS