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A platform for research: civil engineering, architecture and urbanism
ELECTRET MATERIAL AND METHOD FOR PRODUCING ELECTRET MATERIAL
To provide an electret material that has high heat resistance and is less prone to relaxation of polarization.SOLUTION: An electret includes first phases composed of zirconia and a second phase composed of oxide ceramic different from the first phase. The first phases are dispersed and scattered in the second phase. The first phases contain metastable phases with a crystal system being metastable at room temperature.SELECTED DRAWING: Figure 1
【課題】 耐熱性が高く、分極の緩和が生じにくいエレクトレット材料を提供する。【解決手段】 ジルコニアからなる第１相と、上記第１相と異なる酸化物系セラミックスからなる第２相と、を含有するエレクトレット材料であって、上記第１相は、上記第２相の中で分散して点在し、上記第１相は、結晶系が室温において準安定な準安定相を含むことを特徴とするエレクトレット材料。【選択図】 図１
ELECTRET MATERIAL AND METHOD FOR PRODUCING ELECTRET MATERIAL
To provide an electret material that has high heat resistance and is less prone to relaxation of polarization.SOLUTION: An electret includes first phases composed of zirconia and a second phase composed of oxide ceramic different from the first phase. The first phases are dispersed and scattered in the second phase. The first phases contain metastable phases with a crystal system being metastable at room temperature.SELECTED DRAWING: Figure 1
【課題】 耐熱性が高く、分極の緩和が生じにくいエレクトレット材料を提供する。【解決手段】 ジルコニアからなる第１相と、上記第１相と異なる酸化物系セラミックスからなる第２相と、を含有するエレクトレット材料であって、上記第１相は、上記第２相の中で分散して点在し、上記第１相は、結晶系が室温において準安定な準安定相を含むことを特徴とするエレクトレット材料。【選択図】 図１
ELECTRET MATERIAL AND METHOD FOR PRODUCING ELECTRET MATERIAL
エレクトレット材料及びエレクトレット材料の製造方法
KAWASHIMA SHINTARO (author) / WAKIHARA YOSHINORI (author) / ITO YASUTAKA (author) / KANO HARUHIDE (author)
2022-07-01
Patent
Electronic Resource
Japanese
Inorganic microcrystalline electret material and preparation method thereof
| European Patent Office | 2022