Schwieger W, Baser HH (2021)
Publication Type: Book chapter / Article in edited volumes
Publication year: 2021
Publisher: Springer Science and Business Media Deutschland GmbH
Edited Volumes: Ammonothermal Synthesis and Crystal Growth of Nitrides
Series: Springer Series in Materials Science
Book Volume: 304
Pages Range: 155-170
ISBN: 978-3-030-56305-9
DOI: 10.1007/978-3-030-56305-9_9
In this study, the solubility of GaN in the ammonobasic MNH2–GaN–NH3 (M = Na, K) systems in the temperature range of 350–550 °C was studied. The target value for the ammonia filling degree was 45% and 55% for mineralizers NaNH2 and KNH2, respectively. The mineralizer concentration was varied at all temperatures from 1 M to 3 M, in respect to the liquid ammonia. It has been found that the solubility of GaN with NaNH2 as a mineralizer increases slightly with increasing temperature in the range 400–600 °C, but is generally very low. A dependence of solubility on mineralizer concentration was not observed. An increase in the ammonia filling degree from 45% to 55% only slightly increased the solubility of GaN. The use of KNH2 as a mineralizer brought an enormous increase in the solubility of GaN. Here, 7 times higher solubilities than those for NaNH2 were observed. A retrograde solubility behavior of GaN in the temperature range 400–550 °C was determined for KNH2 as a mineralizer. In the range of 350–400 °C the solubility showed a positive temperature dependence. The maximum solubility was reached at 400 °C. The solubility of GaN at 400 °C was found three times higher than at 550 °C.
APA:
Schwieger, W., & Baser, H.-H. (2021). Determination of Solubility of GaN in Ammonobasic Systems. In Elke Meissner, Rainer Niewa (Eds.), Ammonothermal Synthesis and Crystal Growth of Nitrides. (pp. 155-170). Springer Science and Business Media Deutschland GmbH.
MLA:
Schwieger, Wilhelm, and Hasan-Hüseyin Baser. "Determination of Solubility of GaN in Ammonobasic Systems." Ammonothermal Synthesis and Crystal Growth of Nitrides. Ed. Elke Meissner, Rainer Niewa, Springer Science and Business Media Deutschland GmbH, 2021. 155-170.
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