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

Jian Li; Cuiping Wang; Jun Yao; Shuiyuan Yang; Yongwang Kang; Zhan Shi; Xingjun Liu

doi:10.3139/146.111442

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

Jian Li
, Cuiping Wang
, Jun Yao
, Shuiyuan Yang
, Yongwang Kang
, Zhan Shi
, Xingjun Liu^*

^*Corresponding author for this work

Xiamen University
Beijing Institute of Aeronautical Materials

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

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 1573 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.

Original language	English
Pages (from-to)	1112-1120
Number of pages	9
Journal	International Journal of Materials Research
Volume	107
Issue number	12
DOIs	https://doi.org/10.3139/146.111442
State	Published - Dec 2016
Externally published	Yes

Keywords

Electron probe microanalysis
Nb-Si-Ta
Phase diagram

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@article{00376817676f436093a67b7419e2b541,

title = "Experimental investigation of phase equilibria in the Nb-Si-Ta ternary system",

abstract = "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 1573 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.",

keywords = "Electron probe microanalysis, Nb-Si-Ta, Phase diagram",

author = "Jian Li and Cuiping Wang and Jun Yao and Shuiyuan Yang and Yongwang Kang and Zhan Shi and Xingjun Liu",

note = "Publisher Copyright: {\textcopyright} Carl Hanser Verlag GmbH \& Co. KG.",

year = "2016",

month = dec,

doi = "10.3139/146.111442",

language = "英语",

volume = "107",

pages = "1112--1120",

journal = "International Journal of Materials Research",

issn = "1862-5282",

publisher = "Walter de Gruyter GmbH",

number = "12",

}

TY - JOUR

T1 - Experimental investigation of phase equilibria in the Nb-Si-Ta ternary system

AU - Li, Jian

AU - Wang, Cuiping

AU - Yao, Jun

AU - Yang, Shuiyuan

AU - Kang, Yongwang

AU - Shi, Zhan

AU - Liu, Xingjun

N1 - Publisher Copyright: © Carl Hanser Verlag GmbH & Co. KG.

PY - 2016/12

Y1 - 2016/12

N2 - 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 1573 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.

AB - 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 1573 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.

KW - Electron probe microanalysis

KW - Nb-Si-Ta

KW - Phase diagram

UR - https://www.scopus.com/pages/publications/85001799537

U2 - 10.3139/146.111442

DO - 10.3139/146.111442

M3 - 文章

AN - SCOPUS:85001799537

SN - 1862-5282

VL - 107

SP - 1112

EP - 1120

JO - International Journal of Materials Research

JF - International Journal of Materials Research

IS - 12

ER -

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

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Keywords

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