A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
ANOMALOUS NERNST EFFECT ELEMENT, MANUFACTURING METHOD THEREOF, AND THERMOELECTRIC CONVERSION DEVICE
To provide an anomalous Nernst effect element that can obtain a larger anomalous Nernst effect than conventional elements by using sintering conditions and a sintering program different from conventional ones, can be easily shaped, and can be manufactured at a lower cost, and a manufacturing method thereof.SOLUTION: An anomalous Nernst effect element 1 includes a sintered body 2 having crystal grains containing Co, Mn, and Ga, and the average grain size of the crystal grains is 8 to 30 μm. The sintered body 2 includes crystal grains of Co2MnGa, and the crystal grains have a Heusler structure. The sintered body 2 is manufactured by sintering a powder containing Co, Mn, and Ga or a compact of the powder, and is sintered at a sintering temperature of 700 to 1075°C using a spark plasma sintering method.SELECTED DRAWING: Figure 1
【課題】従来とは異なる焼結条件及び焼結プログラムにより、従来よりも大きな異常ネルンスト効果を得ると共に、形状加工がし易く、より安価に製造することが可能な異常ネルンスト効果素子及びその製造方法を提供する。【解決手段】異常ネルンスト効果素子１は、Ｃｏ、Ｍｎ、Ｇａを含有した結晶粒を有する焼結体２を含み、結晶粒の平均粒径が８～３０μｍであることを特徴とする。焼結体２は、Ｃｏ２ＭｎＧａの結晶粒を含み、その結晶粒がホイスラー構造を持つ。焼結体２は、Ｃｏ、Ｍｎ、Ｇａを含有する粉末又はその圧粉成形体を焼結して作製し、７００～１０７５℃の焼結温度で放電プラズマ焼結法を用いて焼結する。【選択図】図１
ANOMALOUS NERNST EFFECT ELEMENT, MANUFACTURING METHOD THEREOF, AND THERMOELECTRIC CONVERSION DEVICE
To provide an anomalous Nernst effect element that can obtain a larger anomalous Nernst effect than conventional elements by using sintering conditions and a sintering program different from conventional ones, can be easily shaped, and can be manufactured at a lower cost, and a manufacturing method thereof.SOLUTION: An anomalous Nernst effect element 1 includes a sintered body 2 having crystal grains containing Co, Mn, and Ga, and the average grain size of the crystal grains is 8 to 30 μm. The sintered body 2 includes crystal grains of Co2MnGa, and the crystal grains have a Heusler structure. The sintered body 2 is manufactured by sintering a powder containing Co, Mn, and Ga or a compact of the powder, and is sintered at a sintering temperature of 700 to 1075°C using a spark plasma sintering method.SELECTED DRAWING: Figure 1
【課題】従来とは異なる焼結条件及び焼結プログラムにより、従来よりも大きな異常ネルンスト効果を得ると共に、形状加工がし易く、より安価に製造することが可能な異常ネルンスト効果素子及びその製造方法を提供する。【解決手段】異常ネルンスト効果素子１は、Ｃｏ、Ｍｎ、Ｇａを含有した結晶粒を有する焼結体２を含み、結晶粒の平均粒径が８～３０μｍであることを特徴とする。焼結体２は、Ｃｏ２ＭｎＧａの結晶粒を含み、その結晶粒がホイスラー構造を持つ。焼結体２は、Ｃｏ、Ｍｎ、Ｇａを含有する粉末又はその圧粉成形体を焼結して作製し、７００～１０７５℃の焼結温度で放電プラズマ焼結法を用いて焼結する。【選択図】図１
ANOMALOUS NERNST EFFECT ELEMENT, MANUFACTURING METHOD THEREOF, AND THERMOELECTRIC CONVERSION DEVICE
異常ネルンスト効果素子及びその製造方法、並びに熱電変換デバイス
FUKABORI AKIHIRO (author) / SUZAKI TOMOFUMI (author) / USHIJIMA KEITA (author) / KOTADO MIWA (author) / NAKATSUJI SATORU (author) / SAKAI AKITO (author)
2024-09-12
Patent
Electronic Resource
Japanese
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