Temperature dependence of heat capacity and electrical resistivity of Zr-based bulk glassy alloys
Temperature dependence of heat capacity and electrical resistivity of Zr-based bulk glassy alloys
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DOI：
10.1016/j.msea.2003.10.148
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发表时间：
2004-07
期刊：
影响因子：
6.4
通讯作者：
D. Okai;T. Fukami;T. Yamasaki;T. Zhang;A. Inoue
中科院分区：
文献类型：
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作者：
D. Okai;T. Fukami;T. Yamasaki;T. Zhang;A. Inoue
测量了Zr 55 Al 10 Cu 35、Zr 55 Al 10 Cu 30 Ni 5和Zr 55 Al 10 Cu 25 Ni 10大块非晶合金在300 K以下温度范围内的恒压比热（Cp）和电阻率（ρ）。结果发现，Zr 55 Al 10 Cu（35-X）NiX（X=0，5和10at.%）的测量Cp合金几乎相同。Zr 55 Al 10 Cu 30 Ni 5合金的电子比热系数（γexp）和德拜温度（θD）分别为4.05 mJmol − 1 K − 2和278 K。在2.8 ~ 300 K的温度范围内，Zr 55 Al 10 Cu 35 Ni 5合金的电阻率随温度的降低而增加。当X=5时，合金的ρ在2.8K以下突然下降。在1.8 ~ 300 K温度范围内，Zr 55 Al 10 Cu 35和Zr 55 Al 10 Cu 25 Ni 10合金的ρ随温度的降低而增大。
The specific heat at constant pressure (Cp) and electrical resistivity (ρ) of Zr55Al10Cu35, Zr55Al10Cu30Ni5and Zr55Al10Cu25Ni10bulk glassy alloys were measured in the temperature range below 300K. It was found that the measured Cpof the Zr55Al10Cu(35−X)NiX(X=0, 5 and 10at.%) alloys are almost the same. The coefficient of electronic specific heat (γexp) and the Debye temperature (θD) of the Zr55Al10Cu30Ni5alloy were found to be 4.05mJmol−1K−2and 278K, respectively. The ρ of the Zr55Al10Cu35Ni5alloy increased as the temperature decreased in the temperature range between approximately 2.8 and 300K. The ρ of the alloy with the X=5 decreased abruptly below approximately 2.8K. The ρ of the Zr55Al10Cu35and Zr55Al10Cu25Ni10alloys increased with decreasing temperature in the temperature range between 1.8 and 300K.