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with in-line variable input heat source. Effective thermal conductivity and thermal resistance were obtained from the measured data. From the measurement, the effective thermal conductivity is found... size borehole heat exchanger; thermal response test; effective thermal conductivity; thermal resistance; borehole......
A new model to describe composition and temperature dependence of thermal conductivity for solution phases in binary alloysShiyi Wen1,Yuling Liu1,George Kaptay2,Yong Du11. State Key Laboratory of Powder Metallurgy, Central South University2. University of Miskolc摘 要:Modelling temperature-and composition-dependent thermal conductivity in alloys......
Effect of samarium filling on the lattice thermal conductivity of skutterudite materials姜一平1,贾晓鹏2,邓乐2,马红安21. Department of Physics, Beihua University2. National Lab of Superhard Materials, Jinlin... dependences of electrical resistivity, Seebeck coefficient and thermal conductivity were measured on these compounds in the range of 300-723 K. All samples showed n-type conduction. The thermal......
Effect of samarium filling on the lattice thermal conductivity of skutterudite materials姜一平1,贾晓鹏2,邓乐2,马红安21. Department of Physics, Beihua University2. National Lab of Superhard Materials, Jinlin... dependences of electrical resistivity, Seebeck coefficient and thermal conductivity were measured on these compounds in the range of 300-723 K. All samples showed n-type conduction. The thermal......
聚合物基复合材料导热模型的研究现状及应用 王璞玉1,杨克己1,胡旭晓1,周洁1 (1.浙江大学现代制造技术研究所,杭州,310027) 摘要:综述了描述聚合物基复合材料导热性能的经典模型和新模型,详细列举了各模型的特点,比较了模型之间的区别,具体分析了影响复合体系导热性能的各种因素.结合对碳纳米管复合材料的研究给出了一些常用模型的应用建议,同时提出了当前研究中存在的模型通用性差的问题,指出今后聚合物基导热复合材料的研究趋势应为开发新的高导热纳米填充物和纳米复合技术以使填充物在基体中能形成有效的导热通路,从而改善复合体系的导热性能. 关键词:聚合物基; 复合材料; 导热模型; 碳纳米管; polymer matrix; composite; thermal conductivity model; carbon nanotubes; [全文内容正在添加中] ......
treatments are the keys to obtain high-strength and high-conductivity aluminum alloy wires. Key words: Al-Sc-Zr alloy; thermal treatment; cold deformation; mechanical properties; conductivity 1.... The quantitative contribution of cold deformation to the conductivity of the alloy is |Δkε|=|k3-k2|. 3 Results and discussion 3.1 Effects of thermal treatment on microstructures and properties of Al......
Microstructure and mechanical properties of novel Al-Y-Sc alloys with high thermal stability and electrical conductivityA.V.Pozdniakov,R.Yu.BarkovNUST "MISiS"摘 要:The microstructure and mechanical properties of novel Al-Y-Sc alloys with high thermal stability and electrical conductivity were investigated.Eutectic Al3 Y-phase particles of size 100-200 nm......
. The microstructures and crystal parameters of carbon foams were characterized by SEM, OM and XRD. The compressive strength and thermal conductivity were also measured. The results show that the bubble..., respectively. The thermal conductivity of graphitized carbon foam reaches the maximum value of 61.0 W/(m·K) at foaming pressure of 7 MPa. Key words: AR mesophase pitch; carbon foam; compressive......
Selective interfacial bonding and thermal conductivity of diamond/Cu-alloy composites prepared by HPHT techniqueHui Chen1), Cheng-chang Jia1), Shang-jie Li2), Xian Jia1), and Xia Yang1) 1) School..." name="ChDivSummary">Cu-based and Cu-alloy-based diamond composites were made by high-pressure-high-temperature (HPHT) sintering with the aim of maximizing the thermal conductivity of the composites......
. The physical properties of the shale were analyzed by XRD, inductively coupled plasma atomic emission spectrometer (ICP-AES). The baking swell properties, far-infrared reflectivity and thermal conductivity... silicate minerals and Al, Fe, Mg, Na as well as other elements. Reflectance of the shale is more than 85% in the far-infrared range. The low-thermal conductivity (0.045 W/(m·K)) shows good thermal......