Directional atomic ordering in nanocrystalline soft magnetic materials: Development of ultra-efficient magnetic core materials

纳米晶软磁材料中的原子定向有序化：超高效磁芯材料的开发

• 批准号: DP0452954
• 负责人: Prof Kiyonori Suzuki
• 金额: $ 13.22万
• 依托单位: Monash University
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2004
• 资助国家: 澳大利亚
• 起止时间: 2004-03-01 至 2007-09-18
• 项目状态: 已结题
• 来源: https://dataportal.arc.gov.au/RGS/Web/Grants/DP0452954
• 关键词: Directional; atomic; ordering; nanocrystalline; soft

Soft magnetic materials are used as magnetic cores in electromagnetic devices such as transformers. The latest material development is the use of nanocrystalline soft magnetic alloys. Our theory and experiments have shown that the magnetic softness of nanocrystalline alloys is greatly influenced by directional atomic ordering, which increases magnetic anisotropy and consequently increases heat loss. We will employ a novel magnetic annealing technique to establish the relationship between this anisotropy and the soft magnetic properties of nanocrystalline alloys. Emphasis will be placed on eliminating the induced anisotropy in iron-cobalt based alloys and thereby produce ultra-efficient, magnetic core materials.

软磁材料被用作变压器等电磁设备中的磁芯。最新的材料开发是使用纳米晶软磁合金。我们的理论和实验表明，纳米晶合金的磁性软度受到原子定向有序的极大影响，这增加了磁各向异性，从而增加了热损耗。我们将采用一种新的磁退火技术，以建立这种各向异性和纳米晶合金的软磁性能之间的关系。重点将放在消除铁钴基合金中的感生各向异性，从而产生超高效的磁芯材料。