2007
DOI: 10.2320/matertrans.mer2007077
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Thermodynamic Properties of AlNd Determined by Low Temperature Heat Capacity Measurements

Abstract: The thermodynamic properties of AlNd were investigated by measuring the heat capacity, C p , from near absolute zero (2 K) to 300 K using the relaxation method. During the measurement of the C p (AlNd), 4 thermal anomalies were found on the C p curve at 75.34, 39.79, 25.77, and 6.95 K. The third law entropy of AlNd at 298 K was obtained by integrating the polynomials for the measured C p values. The result was as follows:Using this value, the standard entropy of formation at 298 K was obtained as follows:

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“….また,極低温の C p の測定結果からデバイ温度を 8,9) ,求めた.さらに,酸素イオン空孔濃度に 伴う振動のエントロピー変化と酸素イオン空孔濃度との差分 から酸素イオン空孔生成のエントロピー,D f S vib.…”
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“….また,極低温の C p の測定結果からデバイ温度を 8,9) ,求めた.さらに,酸素イオン空孔濃度に 伴う振動のエントロピー変化と酸素イオン空孔濃度との差分 から酸素イオン空孔生成のエントロピー,D f S vib.…”
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“…T V (V äo)の値は大きく,この大 日 本 金 属 学 会 誌(2009) 第 73 巻 きなエントロピーが V äo を生成させる一因であることを明ら かにした 8,9) . 前報 8,9) で行った,絶対零度付近から高温までの C p 測定を…”
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