Development of the Evaluation of the Thermophysical Properties of Functionally Gradient Materials

功能梯度材料热物理性能评价的进展

• 批准号: 07555389
• 负责人: NAGASAKA Yuji
• 金额: $ 0.96万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555389/
• 关键词: Functionally Gradient Materials; Thermophysical Properties; Photoacoustic Method; Thermal Diffusivity; Composite Materials; Thermal Conductivity; Photothermal Radiometry

The results obtained from the present research are summarized as follows.(1) In order to apply the photothermal method to measure the thermal diffusivity of functional gradient materials (FGM), we have extended the RG theory and obtained AC temperature response for layred sample.(2) From the obtained AC temperature response, we have succeeded to evaluate thermal diffusivity distribution in the case of 2 and 3 layred FGM sample. We have found that by employing appropriate initial values, it is in principle possible to extract the inner thermal diffusivity distribution from phase-lag data.(3) We have developed a new photoacoustic instrument and confirmed the applicability of the method.(4) In order to measure the thermal diffusivity distribution of much thicker (-mm) FGM,we have developed a new photothermal instrument.(5) By using this photothermal apparatus, we have measured the thermal diffusivity distribution of 5 layred Ni/ZrO_2 FGM sample for the first time.

本研究的结果总结如下：(1)为了应用光热方法测量功能梯度材料（FGM）的热扩散系数，我们扩展了RG理论，得到了层状样品的交流温度响应。(2)从得到的交流温度响应中，我们成功地评估了2层和3层FGM样品的热扩散率分布。我们发现，通过采用适当的初始值，原则上可以从相位滞后数据中提取内部热扩散率分布。(3)我们研制了一种新的光声仪器，并证实了该方法的适用性。(4)为了测量更厚（-mm） FGM的热扩散率分布，我们研制了一种新型光热仪器。(5)利用该光热仪首次测量了5层Ni/ZrO_2 FGM样品的热扩散率分布。

项目成果

Yamada, S.: "Evaluation of Thermophysical Properties of Functionally Gradient Materials by the Photoacoustic Method (5th Report)" Proc.33rd National Heat Transfer Symposium of Japan. 175 (1996)

Yamada, S.：“通过光声法评估功能梯度材料的热物理性质（第 5 次报告）”，第 33 届日本传热研讨会论文集。

Yamada, S.: "Evaluation of Thermophysical Properties of Functionally Gradient Materials by the Photoacoustic Method (4th Report)" Proc.4th Asian Thermophysical Properies Conf.719 (1995)

Yamada, S.：“通过光声法评估功能梯度材料的热物理性质（第四次报告）”Proc.4th Asian Thermophysical Properies Conf.719（1995）

佐藤 務: "フォトサーマル赤外検知法による傾斜機能材料の熱物性値評価の研究(第2報,Ni/ZrO_2系FGMの測定)" 第34回日本伝熱シンポジウム講演論文集. (掲載予定)34. (1997)

Tsutomu Sato：“使用光热红外检测方法评估功能梯度材料的热物理性质的研究（第2次报告，基于Ni/ZrO_2的FGM的测量）”第34届日本传热研讨会论文集（待出版）34。（1997年）。 ）

Sato, T.: "Evaluation of Thermophysical Properties of Functionally Gradient Materials by the Photothermal Radiometry (2nd Report, Measurement of Ni/ZrO_2 FGM)" Proc.34th National Heat Transfer Symposium of Japan. (to be published). (1997)

Sato, T.：“通过光热辐射测量法评估功能梯度材料的热物理性质（第二次报告，Ni/ZrO_2 FGM 的测量）”Proc.34th National Heat Transfer Symposium of Japan。

S.Yamada: "Evaluation of Themophysical Properties of Functionally Gradient Materials by the Photoacoustic Method" Proc.4th Asian Thermophysical Properties Conference. 4. 719-722 (1995)

S.Yamada：“通过光声方法评估功能梯度材料的热物理性质”Proc.4th 亚洲热物理性质会议。