Subsolidus phase relations of the Cu-Ga-N system

Y. Zhang; J. B. Li; J. K. Liang; Q. Zhang; B. J. Sun; Y. G. Xiao; G. H. Rao

doi:10.1016/j.jallcom.2006.08.015

Subsolidus phase relations of the Cu-Ga-N system

Y. Zhang, J. B. Li^*, J. K. Liang, Q. Zhang, B. J. Sun, Y. G. Xiao, G. H. Rao

^*Corresponding author for this work

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

15 Citations (Scopus)

Abstract

The subsolidus phase relations of the Cu-Ga-N system are studied by X-ray powder diffraction. The phase relations of the binary Cu-Ga system are checked firstly. θ-CuGa₂ which belongs to the tetragonal system is determined to be a stoichiometric compound and its thermal expansion is measured by temperature-dependent X-ray powder diffraction from 93 to 523 K. The linear temperature dependences of the expansion coefficients along the a- and c-axis and volume coefficients are obtained, α_a = (1.97349 - 3.84678 × 10^-5T) × 10^-5, α_c = (2.00261 - 3.96007 × 10^-5T) × 10^-5 and α_V = (6.01498 - 3.49098 × 10^-4T) × 10^-5, respectively. No ternary compound is found in the Cu-Ga-N system. Cu and its alloys could have some reaction with GaN under the present experimental condition.

Original language	English
Pages (from-to)	158-164
Number of pages	7
Journal	Journal of Alloys and Compounds
Volume	438
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2006.08.015
Publication status	Published - 12 Jul 2007
Externally published	Yes

Keywords

Nitride materials
Phase diagram
Semiconductors
X-ray diffraction

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10.1016/j.jallcom.2006.08.015

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@article{fe96316421c34c629791ebfc596a78a4,

title = "Subsolidus phase relations of the Cu-Ga-N system",

abstract = "The subsolidus phase relations of the Cu-Ga-N system are studied by X-ray powder diffraction. The phase relations of the binary Cu-Ga system are checked firstly. θ-CuGa2 which belongs to the tetragonal system is determined to be a stoichiometric compound and its thermal expansion is measured by temperature-dependent X-ray powder diffraction from 93 to 523 K. The linear temperature dependences of the expansion coefficients along the a- and c-axis and volume coefficients are obtained, αa = (1.97349 - 3.84678 × 10-5T) × 10-5, αc = (2.00261 - 3.96007 × 10-5T) × 10-5 and αV = (6.01498 - 3.49098 × 10-4T) × 10-5, respectively. No ternary compound is found in the Cu-Ga-N system. Cu and its alloys could have some reaction with GaN under the present experimental condition.",

keywords = "Nitride materials, Phase diagram, Semiconductors, X-ray diffraction",

author = "Y. Zhang and Li, {J. B.} and Liang, {J. K.} and Q. Zhang and Sun, {B. J.} and Xiao, {Y. G.} and Rao, {G. H.}",

year = "2007",

month = jul,

day = "12",

doi = "10.1016/j.jallcom.2006.08.015",

language = "English",

volume = "438",

pages = "158--164",

journal = "Journal of Alloys and Compounds",

issn = "0925-8388",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Subsolidus phase relations of the Cu-Ga-N system

AU - Zhang, Y.

AU - Li, J. B.

AU - Liang, J. K.

AU - Zhang, Q.

AU - Sun, B. J.

AU - Xiao, Y. G.

AU - Rao, G. H.

PY - 2007/7/12

Y1 - 2007/7/12

N2 - The subsolidus phase relations of the Cu-Ga-N system are studied by X-ray powder diffraction. The phase relations of the binary Cu-Ga system are checked firstly. θ-CuGa2 which belongs to the tetragonal system is determined to be a stoichiometric compound and its thermal expansion is measured by temperature-dependent X-ray powder diffraction from 93 to 523 K. The linear temperature dependences of the expansion coefficients along the a- and c-axis and volume coefficients are obtained, αa = (1.97349 - 3.84678 × 10-5T) × 10-5, αc = (2.00261 - 3.96007 × 10-5T) × 10-5 and αV = (6.01498 - 3.49098 × 10-4T) × 10-5, respectively. No ternary compound is found in the Cu-Ga-N system. Cu and its alloys could have some reaction with GaN under the present experimental condition.

AB - The subsolidus phase relations of the Cu-Ga-N system are studied by X-ray powder diffraction. The phase relations of the binary Cu-Ga system are checked firstly. θ-CuGa2 which belongs to the tetragonal system is determined to be a stoichiometric compound and its thermal expansion is measured by temperature-dependent X-ray powder diffraction from 93 to 523 K. The linear temperature dependences of the expansion coefficients along the a- and c-axis and volume coefficients are obtained, αa = (1.97349 - 3.84678 × 10-5T) × 10-5, αc = (2.00261 - 3.96007 × 10-5T) × 10-5 and αV = (6.01498 - 3.49098 × 10-4T) × 10-5, respectively. No ternary compound is found in the Cu-Ga-N system. Cu and its alloys could have some reaction with GaN under the present experimental condition.

KW - Nitride materials

KW - Phase diagram

KW - Semiconductors

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=34247639574&partnerID=8YFLogxK

U2 - 10.1016/j.jallcom.2006.08.015

DO - 10.1016/j.jallcom.2006.08.015

M3 - Article

AN - SCOPUS:34247639574

SN - 0925-8388

VL - 438

SP - 158

EP - 164

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 1-2

ER -

Subsolidus phase relations of the Cu-Ga-N system

Abstract

Keywords

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