Condensed phase equilibria in the Cr-Ga-N system

S. E. Mohney; D. J. MacMahon; K. A. Whitmire

doi:10.1016/S0921-5107(97)00111-6

Condensed phase equilibria in the Cr-Ga-N system

S. E. Mohney, D. J. MacMahon, K. A. Whitmire

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18 Scopus citations

Abstract

An isothermal section of the Cr-Ga-N phase diagram at 800°C has been experimentally determined in order to better understand the metallurgy of Cr-containing electrical contacts to the wide band gap semiconductor GaN. The cubic phase CrN with the NaCl structure and liquid Ga are the only condensed phases in thermodynamic equilibrium with GaN at this temperature. Two chromium gallides (Cr₃Ga, CrGa), another chromium nitride (Cr₂N), and two ternary phases (Cr₃GaN, Cr₂GaN) were also observed in this study.

Original language	English (US)
Pages (from-to)	152-154
Number of pages	3
Journal	Materials Science and Engineering B
Volume	49
Issue number	2
DOIs	https://doi.org/10.1016/S0921-5107(97)00111-6
State	Published - Sep 19 1997

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/S0921-5107(97)00111-6

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title = "Condensed phase equilibria in the Cr-Ga-N system",

abstract = "An isothermal section of the Cr-Ga-N phase diagram at 800°C has been experimentally determined in order to better understand the metallurgy of Cr-containing electrical contacts to the wide band gap semiconductor GaN. The cubic phase CrN with the NaCl structure and liquid Ga are the only condensed phases in thermodynamic equilibrium with GaN at this temperature. Two chromium gallides (Cr3Ga, CrGa), another chromium nitride (Cr2N), and two ternary phases (Cr3GaN, Cr2GaN) were also observed in this study.",

author = "Mohney, {S. E.} and MacMahon, {D. J.} and Whitmire, {K. A.}",

note = "Funding Information: This work was partially supported by DARPA through AFOSR Grant F49620-95-1-0516. One author (D.J.M.) received financial support through an NSF-sponsored Research Experiences for Undergraduates Site (DMR-9423858) in the Department of Materials Science and Engineering at The Pennsylvania State University. The authors are also grateful to Mark Angelone of The Pennsylvania State University Materials Characterization Laboratory for performing electron probe microanalysis and to Heather Miller for assistance with sample preparation.",

year = "1997",

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doi = "10.1016/S0921-5107(97)00111-6",

language = "English (US)",

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pages = "152--154",

journal = "Materials Science and Engineering B",

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T1 - Condensed phase equilibria in the Cr-Ga-N system

AU - Mohney, S. E.

AU - MacMahon, D. J.

AU - Whitmire, K. A.

N1 - Funding Information: This work was partially supported by DARPA through AFOSR Grant F49620-95-1-0516. One author (D.J.M.) received financial support through an NSF-sponsored Research Experiences for Undergraduates Site (DMR-9423858) in the Department of Materials Science and Engineering at The Pennsylvania State University. The authors are also grateful to Mark Angelone of The Pennsylvania State University Materials Characterization Laboratory for performing electron probe microanalysis and to Heather Miller for assistance with sample preparation.

PY - 1997/9/19

Y1 - 1997/9/19

N2 - An isothermal section of the Cr-Ga-N phase diagram at 800°C has been experimentally determined in order to better understand the metallurgy of Cr-containing electrical contacts to the wide band gap semiconductor GaN. The cubic phase CrN with the NaCl structure and liquid Ga are the only condensed phases in thermodynamic equilibrium with GaN at this temperature. Two chromium gallides (Cr3Ga, CrGa), another chromium nitride (Cr2N), and two ternary phases (Cr3GaN, Cr2GaN) were also observed in this study.

AB - An isothermal section of the Cr-Ga-N phase diagram at 800°C has been experimentally determined in order to better understand the metallurgy of Cr-containing electrical contacts to the wide band gap semiconductor GaN. The cubic phase CrN with the NaCl structure and liquid Ga are the only condensed phases in thermodynamic equilibrium with GaN at this temperature. Two chromium gallides (Cr3Ga, CrGa), another chromium nitride (Cr2N), and two ternary phases (Cr3GaN, Cr2GaN) were also observed in this study.

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DO - 10.1016/S0921-5107(97)00111-6

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JO - Materials Science and Engineering B

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ER -

Condensed phase equilibria in the Cr-Ga-N system

Abstract

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