Evaluation of thermophysical properties of functionally graded materials
文献类型：期刊论文
| 作者 | Araki, N.; Tang, D. W.; Ohtani, A. |
| 刊名 | INTERNATIONAL JOURNAL OF THERMOPHYSICS
 |
| 出版日期 | 2006 |
| 卷号 | 27期号:1页码:209-219 |
| 关键词 | apparent thermal conductivity effective thermal conductivity functionally graded material (FGM) temperature response in a composite thermal diffusivity |
| 英文摘要 | In this work, by considering four-layered functionally graded material (FGM) specimens of Cu/Ni and PSZ/NiCrAlY, the transient characteristics and homogeneity of heat conduction media have been studied. The thermal diffusivities of the considered specimens have been measured by the laser flash method. As the temperature response curve of a FGM is very similar to that of a homogeneous material, it is difficult to distinguish a FGM from a homogeneous material by the shape of the temperature responses. Therefore, the thermal diffusivity obtained from the half-time method is usually taken as the corresponding value of the thermal diffusivity. The apparent thermal conductivity, obtained from the corresponding value of the thermal diffusivity and the average of the heat capacity of each layer, is different from the effective thermal conductivity, obtained from the sum of the heat resistances of each layer. As the values of the heat capacity of materials exist over a certain range, and the heat capacity distribution can be predicted when the materials in a FGM are known, the amount of error that will be caused when the effective thermal conductivity is replaced by the apparent value can be determined. Also, the heterogeneity of a FGM, based on an evaluation of thermophysical properties, has been discussed. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Thermodynamics ; Chemistry, Physical ; Mechanics ; Physics, Applied |
| 研究领域[WOS] | Thermodynamics ; Chemistry ; Mechanics ; Physics |
| 关键词[WOS] | TRANSIENT TEMPERATURE RESPONSE ; GRADIENT MATERIALS |
| 收录类别 | SCI ; ISTP |
| 语种 | 英语 |
| WOS记录号 | WOS:000238453100019 |
| 公开日期 | 2015-12-22 |
| 源URL | [http://ir.etp.ac.cn/handle/311046/106248]  |
| 专题 | 工程热物理研究所_中国科学院工程热物理所（论文库）_期刊论文（SCI） |
| 作者单位 | 1.Shizuoka Univ, Dept Mech Engn, Hamamatsu, Shizuoka 4328561, Japan 2.Chinese Acad Sci, Inst Engn Thermophys, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Araki, N.,Tang, D. W.,Ohtani, A.. Evaluation of thermophysical properties of functionally graded materials[J]. INTERNATIONAL JOURNAL OF THERMOPHYSICS,2006,27(1):209-219. |
| APA | Araki, N.,Tang, D. W.,&Ohtani, A..(2006).Evaluation of thermophysical properties of functionally graded materials.INTERNATIONAL JOURNAL OF THERMOPHYSICS,27(1),209-219. |
| MLA | Araki, N.,et al."Evaluation of thermophysical properties of functionally graded materials".INTERNATIONAL JOURNAL OF THERMOPHYSICS 27.1(2006):209-219. |
入库方式： OAI收割
来源：工程热物理研究所
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