Pittois S, Van Roie B, Glorieux C, Thoen J
Laboratorium voor Akoestiek en Thermische Fysica, Departement Natuurkunde en Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium.
J Chem Phys. 2004 Jul 22;121(4):1866-72. doi: 10.1063/1.1765652.
Experimental investigations on binary liquid mixtures near the critical mixing point are presently leading to a controversy about the anomaly in the thermal conductivity. A photopyroelectric technique is used to determine the thermal conductivity and the effusivity of the binary liquid mixture n-butoxyethanol-water at its critical concentration near the critical mixing point. It is proven that, contrary to previous reports, there is no critical enhancement in the thermal conductivity. The specific heat capacity is calculated from these results and compared with the results from measurements performed by adiabatic scanning calorimetry.
目前，对临界混合点附近二元液体混合物的实验研究引发了关于热导率异常的争议。采用光热电流技术测定了二元液体混合物正丁氧基乙醇 - 水在临界混合点附近的临界浓度下的热导率和热扩散率。结果表明，与之前的报道相反，热导率没有临界增强现象。根据这些结果计算出比热容，并与绝热扫描量热法测量的结果进行比较。
