Abstract
Isothermal sections at 670, 740, and 800 °C in the Cr–Ga–N ternary system were investigated. Details of the Cr–Ga and Cr–N binary phase diagrams were confirmed, and the equilibrium diagrams were constructed. At all temperatures, Cr3GaN was in equilibrium with all the condensed phases, except GaN. In the 670–800 °C temperature range, Cr2GaN appears to be kinetically stable in contact with GaN. This led to the construction of behavior diagrams that are valid only as long as GaN is present in the initial mixture. Above ∼910 °C, Cr2GaN decomposes to form Cr3GaN, CrN, and Ga(1). At 1000 °C, Cr3GaN is in equilibrium with all the condensed phases, and CrN is in equilibrium with Ga.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
D. Steigerwald, S. Rudaz, H. Liu, R. S. Kern, W. Gotz, and R. Fletcher, JOM 9, 18–23 (1997).
S. Nakamura, T. Mukai, M. Senoh, and N. Iwasa, Jpn. J. Appl. Phys. 31, L 139 (1992).
S. Nakamura, N. Iwasa, M. Senoh, and T. Mukai, Jpn. J. Appl. Phys. 31, 1258 (1992).
e. g., February 1997 issue of the MRS Bulletin.
e. g., Gallium Nitride and Related Materials II, edited by C. R. Abernathy, H. Amano, and J. C. Zolper (Mater. Res. Soc. Symp. Proc. 468, Pittsburgh, PA, 1997); III-V Nitrides, edited by F. A. Ponce, T. D. Moustakas, I. Akasaki, and B. A. Monemar (Mater. Res. Soc. Symp. Proc. 449, Pittsburgh, PA, 1997).
M. W. Barsoum and T. El-Raghy, J. Am. Ceram. Soc. 79, 1953 (1996).
M. W. Barsoum and T. El-Raghy, J. Mater. Synth. Process. 5, 197 (1997).
M. W. Barsoum, D. Brodkin, and T. El-Raghy, Scripta Mater. 36, 535 (1996).
M. W. Barsoum, G. Yaroschuck, and S. Tyagi, Scripta Mater.37, 1583 (1997).
T. Kim and M. C. Yoo, in III-V Nitrides, edited by F. A. Ponce, T. D. Moustakas, I. Akasaki, and B. A. Monemar (Mater. Res. Soc. Symp. Proc. 449, Pittsburgh, PA, 1997), p. 1061.
Z-F. Fan, S. N. Mohammad, W. Kim, O. Aktas, A. E. Botchkarev, and H. Morkoç, Appl. Phys. Lett. 68, 1672 (1996).
Binary Alloy Phase Diagrams, 2nd ed., edited by T. Massalski (ASM INTERNATIONAL, Materials Park, OH, 1990).
A. Davydov and T. J. Anderson, CALPHAD 21 (3), 114 (1997).
O. Beckmann, H. Boller, H. Nowotny, and F. Benesovsky, Mh. Chem. 100, 1465 (1969).
C. Samson, J-P. Boller, and R. Fruchart, C. R. Acad. Sci. Paris 259, 392 (1964).
S. E. Mohney, D. J. MacMahon, and K. A. Whitmire, Mater. Sci. Eng. B49, 152 (1997).
Handbook of Ternary Alloy Phase Diagrams, edited by P. Villars, A. Prince, and H. Okamoto (ASM INTERNATIONAL, Materials Park, OH, 1995).
Powder Diffraction File #43-139.
Powder Diffraction File #28-0362.
R. A. Logan, H. G. White, and W. Wiegmann, Solid State Electron. 14, 55 (1971).
O. G. Lorimor and L. R. Dawson, J. Electrochem. Soc. 118, 292C (1971).
J. Karpinski, J. Jun, and S. Porowski, J. Cryst. Growth 66, 1 (1984).
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Farber, L., Barsoum, M.W. Isothermal sections in the Cr–Ga–N system in the 650–1000 °C temperature range. Journal of Materials Research 14, 2560–2566 (1999). https://doi.org/10.1557/JMR.1999.0343
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1557/JMR.1999.0343