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公开(公告)号:US20120315182A1
公开(公告)日:2012-12-13
申请号:US13506434
申请日:2012-04-18
申请人: Karl A. Gschneider, JR. , Frederick A. Schmidt , Alexandra O. Tsokol , Vitalij K. Pecharsky , Lawrence L. Jones , Paul B. Wheelock
发明人: Karl A. Gschneider, JR. , Frederick A. Schmidt , Alexandra O. Tsokol , Vitalij K. Pecharsky , Lawrence L. Jones , Paul B. Wheelock
CPC分类号: C22C28/00 , B22F9/20 , C22C1/0491 , C22C27/04 , H01F1/015
摘要: A method for preparing R5X4 alloy materials where R is a rare earth element selected from one or more of La, Ce, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Lu, Sc, and Y and X represents a non-rare earth alloying element such as silicon, germanium, tin, lead, gallium, indium and mixtures thereof. The method involves carbothermically reducing amounts of a rare earth element-containing oxide, an alloying element-containing oxide and/or alloying element in elemental or alloy form, and carbon at elevated temperature to form an R5X4 alloy material, which is melted, solidified, and optionally heat treated. Such a method provides an economical and efficient technique of configuring magnetic refrigerant, magnetostrictive and magnetoresistive alloys and products.
摘要翻译: 一种制备R5X4合金材料的方法,其中R是选自La,Ce,Sm,Eu,Gd,Tb,Dy,Ho,Er,Tm,Lu,Sc和Y中的一种或多种的稀土元素,X和X表示 非稀土合金元素如硅,锗,锡,铅,镓,铟及其混合物。 该方法包括在元素或合金形式的碳纳米管中减少含稀土元素的氧化物,含合金元素的氧化物和/或合金元素的量,并在升高的温度下形成碳,以形成熔融固化的R 5 X 4合金材料, 并任选地进行热处理。 这种方法提供了一种经济有效的配置磁性制冷剂,磁致伸缩和磁阻合金和产品的技术。