Abstract
Heat contents of the Ga-As and In-As systems were measured by a drop-calorimeter in the concentration ranges of NAs=0.05 to 0.05 (GaAs, InAs) and in the respective temperature ranges of 800 t 1550 K and 700 to 1500 K. The corresponding results are illustrated in (HTH298.15)-temperature-composition ternary diagrams. The activities and heats and entropies of mixing were determined at temperature above 1200 K. The activities of Ga and In in both liquid systems showed a large negative deviation from Raoult's law at the compound side and a slight positive deviation in the Ga-rich and In-rich regions. Those of As showed a large negative deviation from Raoult's law. Based on the obtained thermodynamic data, partial pressure-temperature-composition correlation diagrams were constructed. Total pressure of arsenic gas species and partial pressure of As, showed a drastic increase with increasing temperature and arsenic concentration.
| Original language | English |
|---|---|
| Pages (from-to) | 966-972 |
| Number of pages | 7 |
| Journal | Nippon Kinzoku Gakkai-si |
| Volume | 52 |
| Issue number | 10 |
| Publication status | Published - 1988 Oct |
| Externally published | Yes |
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Thermodynamic investigation of liquid Ga-As and In-As systems by the use of a drop-calorimeter. / Yamaguchi, Katsunori; Itagaki, Kimio; Yazawa, Akira.
In: Nippon Kinzoku Gakkai-si, Vol. 52, No. 10, 10.1988, p. 966-972.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Thermodynamic investigation of liquid Ga-As and In-As systems by the use of a drop-calorimeter
AU - Yamaguchi, Katsunori
AU - Itagaki, Kimio
AU - Yazawa, Akira
PY - 1988/10
Y1 - 1988/10
N2 - Heat contents of the Ga-As and In-As systems were measured by a drop-calorimeter in the concentration ranges of NAs=0.05 to 0.05 (GaAs, InAs) and in the respective temperature ranges of 800 t 1550 K and 700 to 1500 K. The corresponding results are illustrated in (HTH298.15)-temperature-composition ternary diagrams. The activities and heats and entropies of mixing were determined at temperature above 1200 K. The activities of Ga and In in both liquid systems showed a large negative deviation from Raoult's law at the compound side and a slight positive deviation in the Ga-rich and In-rich regions. Those of As showed a large negative deviation from Raoult's law. Based on the obtained thermodynamic data, partial pressure-temperature-composition correlation diagrams were constructed. Total pressure of arsenic gas species and partial pressure of As, showed a drastic increase with increasing temperature and arsenic concentration.
AB - Heat contents of the Ga-As and In-As systems were measured by a drop-calorimeter in the concentration ranges of NAs=0.05 to 0.05 (GaAs, InAs) and in the respective temperature ranges of 800 t 1550 K and 700 to 1500 K. The corresponding results are illustrated in (HTH298.15)-temperature-composition ternary diagrams. The activities and heats and entropies of mixing were determined at temperature above 1200 K. The activities of Ga and In in both liquid systems showed a large negative deviation from Raoult's law at the compound side and a slight positive deviation in the Ga-rich and In-rich regions. Those of As showed a large negative deviation from Raoult's law. Based on the obtained thermodynamic data, partial pressure-temperature-composition correlation diagrams were constructed. Total pressure of arsenic gas species and partial pressure of As, showed a drastic increase with increasing temperature and arsenic concentration.
UR - http://www.scopus.com/inward/record.url?scp=0024088717&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024088717&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0024088717
VL - 52
SP - 966
EP - 972
JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
SN - 0021-4876
IS - 10
ER -