Improvement of Thermoelectric Properties and Development of Fabrication Processes for Environmental-friendly Half-Heusler Thermoelectric Materials

环保型Half-Heusler热电材料热电性能的提高及制备工艺的发展

• 批准号: 19206073
• 负责人: KIMURA Yoshisato
• 金额: $ 29.45万
• 依托单位: Tokyo Institute of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2007
• 资助国家: 日本
• 起止时间: 2007 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-19206073/
• 关键词: 金属物性; 環境材料; 廃熱利用; 相平衡・状態図; 材料加工・処理; 環境エネルギー材料

We have focused on half-Heusler type compounds MNiSn (M=Ti, Zr, Hf) as environmental-friendly thermoelectric materials which allow us the materials design without depending on toxic elements. Thermoelectric properties of MNiSn were evaluated as their intrinsic physical properties, and the phase separation of TiNiSn from ZrNiSn and HfNiSn, i.e. between the same half-Heusler ordered structure, was determined with related phase equilibria. New fabrication processes were proposed based on the reaction between Sn (liquid) and TiNi (solid) as well as based on the reduction of SnO_2 and oxidization of Ti. Thermoelectric properties were evaluated for TiNiSn/Ti-oxides composite alloys.

我们专注于半身型化合物MNISN（M = Ti，Zr，HF）作为环境友好的热电材料，这些材料可让我们材料设计而无需依赖有毒元素。将MNISN的热电特性评估为它们的内在物理特性，并用相关的相位平衡确定TINISN与Zrnisn和HFNISN的相位分离。根据SN（液体）和Tini（固体）之间的反应以及基于SNO_2的还原和Ti的氧化，提出了新的制造过程。评估热电特性的Tinisn/Ti-Oxides复合合金。

项目成果

Thermoelectric Properties of Directionally Solidified Half-Heusler (Ma 0. 5, Mb 0. 5)NiSn (Ma, Mb = Hf, Zr, Ti) Alloys

定向凝固Half-Heusler (Ma 0. 5, Mb 0. 5)NiSn (Ma, Mb = Hf, Zr, Ti)合金的热电性能

• 发表时间: 2009
• 期刊: Journal of Electronic Materials 38
• 作者: Yoshisato Kimura;Hazuki Ueno;Yoshinao Mishima
• 通讯作者: Yoshinao Mishima

Half-Heusler型TINiSn合金の作製プロセス構築のための相平衡

Half-Heusler型TINiSn合金制备过程的相平衡

• 发表时间: 2010
• 作者: 大谷真也;木村好里;三島良直
• 通讯作者: 三島良直

SnO2の還元反応を利用した粉末冶金法によるTiNiSn熱電材料の作製プロセスと熱電特性

SnO2还原反应粉末冶金TiNiSn热电材料的制备工艺及热电性能

• 发表时间: 2009
• 作者: 加藤秀樹;木村好里;三島良直
• 通讯作者: 三島良直

Phase Stability and Thermoelectric Properties of Half-Heusler (M^a, M^b) NiSn (M^a, M^b=Hf, Zr, Ti)

Half-Heusler (M^a, M^b) NiSn (M^a, M^b=Hf, Zr, Ti) 的相稳定性和热电性能

• 发表时间: 2008
• 作者: Yoshisato Kimura;Hazuki Ueno;Takahiro Kenjo;Chihiro Asami;Yoshinao Mishima
• 通讯作者: Yoshinao Mishima

Half-Heusler型TiNiSn合金の液相反応焼結による作製と熱電特性評価

液相反应烧结Half-Heusler型TiNiSn合金的制备及热电性能评价

• 发表时间: 2009
• 作者: 木村好里;浅見千裕;三島良直;ら
• 通讯作者: ら