heavy rare earth elementとは 意味・読み方・使い方

To provide a rare earth magnet having excellent magnetic characteristic, thermal stability, and heat resistance without using heavy rare earth element.例文帳に追加

重希土類元素を使用せずに優れた磁気特性と熱安定性と耐熱性とを併せ持つ希土類磁石を提供する。 - 特許庁

The process for producing the magnet comprises a first step in which a heavy rare earth compound containing Dy or Th as a heavy rare earth element is adhered onto a sintered compact of a rare earth magnet and a second step in which the heavy rare earth compound-adhered sintered compact is subjected to heat treatment, wherein the heavy rare earth compound is a Dy or Th iron compound.例文帳に追加

本発明の磁石の製造方法は、希土類磁石の焼結体に、重希土類元素としてＤｙ又はＴｂを含む重希土類化合物を付着させる第１工程と、重希土類化合物が付着した焼結体を熱処理する第２工程とを有し、重希土類化合物は、Ｄｙ又はＴｂの鉄化合物である、ことを特徴とする。 - 特許庁

To improve the characteristics of a magnetic material without using a heavy rare-earth element as a scarce resource.例文帳に追加

希少資源である重希土類元素を使用せずに磁性材料の特性を改善すること。 - 特許庁

Thereafter, the sintered magnet body is heated while the heavy rare-earth element RH (at least one element selected from the group consisting of Dy, Ho and Tb) is supplied to the surface of the sintered magnet body, and the heavy rare-earth element RH is diffused into the rare-earth sintered magnet body from the surface.例文帳に追加

次に、焼結磁石体の表面に重希土類元素ＲＨ（Ｄｙ、Ｈｏ、およびＴｂからなる群から選択された少なくとも１種）を供給しつつ、焼結磁石体を加熱し、表面から重希土類元素ＲＨを希土類焼結磁石体の内部に拡散させる。 - 特許庁

Thus, the heavy rare earth element RH is diffused into the sintered magnet body 1 while supplying the heavy rare earth element RH to the surface of the sintered magnet body 1.例文帳に追加

こうして、重希土類元素ＲＨを焼結磁石体１の表面に供給しつつ、重希土類元素ＲＨを焼結磁石体１の内部に拡散させる。 - 特許庁

The method includes adding to a solution containing the heavy and light rare earth elements, an alkali metal sulfate so as to become 27 g/l or more in terms of a sulfate ion concentration, and coprecipitating the heavy rare earth element and the double sulfate of the light rare earth element to recover.例文帳に追加

重希土類元素と軽希土類元素とを含有する溶液に、アルカリ金属硫酸塩を硫酸イオン濃度として２７ｇ／ｌ以上となるように添加し、重希土類元素を軽希土類元素の硫酸複塩に共沈させて回収する。 - 特許庁

After that, a heavy rare earth element RH is diffused into the rare earth sintered magnet body from the surface thereof by heating the sintered magnet body while supplying the heavy rare earth element RH (at least one substance selected from the group consisting of Dy, Ho and Tb) to the surface of the sintered magnet body.例文帳に追加

次に、焼結磁石体の表面に重希土類元素ＲＨ（Ｄｙ、Ｈｏ、およびＴｂからなる群から選択された少なくとも１種）を供給しつつ、焼結磁石体を加熱し、表面から重希土類元素ＲＨを希土類焼結磁石体の内部に拡散させる。 - 特許庁

To provide an R-Fe-B rare earth sintered magnet, wherein a heavy rare earth element RH is diffused in the outer shell portion of main phase crystal grains over the whole magnet by efficiently utilizing the heavy rare earth element RH, even if the magnet is comparatively thick.例文帳に追加

重希土類元素ＲＨを効率よく活用し、磁石が比較的厚くとも、磁石全体にわたって主相結晶粒の外殻部に重希土類元素ＲＨを拡散させたＲ−Ｆｅ−Ｂ系希土類焼結磁石を提供する。 - 特許庁