Formation of Crystallographic Texture by Hot-Pressing of Rare-Earth Permanent Magnet Compounds

本研究的目的是调查 负责晶体学发展的机制 铁钕硼化合物在加工时的织构 通过低温热压。 质地将由 实验上使用X射线衍射技术。 机制 晶体学取向的研究将通过光学 扫描电子显微镜和透射电子显微镜 电镜 相关的磁性（例如， 磁化强度、剩磁、矫顽场）将被测量。 这一研究对于提高对 技术上重要的高能量的热处理 永久磁铁 美国一直是世界领导者， 研究永磁体，但日本人是世界 这些材料的制造商。 美国磁铁 制造商的竞争力越来越强， 这是我们继续保持竞争力增长所必需的。 培训 学生在磁性材料领域也是一个非常 这项研究的重要方面，因为只有少数大学在 美国正在积极地对学生进行这方面的培训。

The objective of this research is to investigate the mechanisms responsible for the development of crystallographic texture in iron neodymium boron compounds when they are processed by low temperature hot pressing. The texture will be determined experimentally using x-ray diffraction techniques. The mechanism of crystallographic orientation will be studied by optical microscopy, scanning electron microscopy, and transmission electron microscopy. The pertinent magnetic properties (e.g. magnetization, remanence, coercive field) will be measured. The research is important to improvement of understanding of the thermal processing of technologically important high energy permanent magnets. The United States has been a world leader in research on permanent magnets, but the Japanese were the world leaders in manufacturing of these materials. The U.S. magnet manufacturers are becoming more competitive, and research such as this is needed to continue our competitive growth. The training of students in the area of magnetic materials is also a very important aspect of this research, as only a few universities in the U.S. are actively training students in this topic.