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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Terfenol-D ： ウィキペディア英語版 Terfenol-D Terfenol-D, an alloy of the formula x1-x (x ~ 0.3), is a magnetostrictive material. It was initially developed in the 1970s by the Naval Ordnance Laboratory in USA. The technology for manufacturing the material efficiently was developed in the 1980s at Ames Laboratory under a U.S. Navy funded program. It is named after terbium, iron (Fe), Naval Ordnance Laboratory (NOL), and the D comes from dysprosium. The alloy has the highest magnetostriction of any alloy, up to 0.002 m/m at saturation; it expands and contracts in a magnetic field. Its initial application was in naval sonar systems. It sees application in magnetomechanical sensors, actuators, and acoustic and ultrasonic transducers, e.g. in the SoundBug device (its first commercial application by FeONIC). Magnetostrictive actuators have also been considered for use in fuel injectors for diesel engines because of the high stresses that can be produced.〔(【引用サイトリンク】title=Fuel Injector Patent )〕 ==See also== * Galfenol 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Terfenol-D」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.