Crystallographic alignment analysis of Nd2Fe14B materials using standard x‐ray powder diffraction spectra
| Autor: | E. G. Brewer, G. P. Meisner |
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| Rok vydání: | 1992 |
| Předmět: | |
| Zdroj: | Journal of Applied Physics. 72:2659-2664 |
| ISSN: | 1089-7550 0021-8979 |
| DOI: | 10.1063/1.351567 |
| Popis: | The crystallographic alignment quality of anisotropic magnetic materials made from die‐upset Nd2Fe14B (MQ‐III) materials was determined using a phenomenological analysis of θ‐2θ x‐ray diffraction spectra. This analysis consisted of fitting a calculated diffraction spectrum for aligned Nd2Fe14B to an observed spectrum collected on a bulk MQ‐III slab oriented with the c‐axis alignment parallel to the direction normal to the surface of the slab. The calculated spectrum was then used as a standard for intensity shifts of diffraction peaks corresponding to crystallographic reorientation from random to c‐axis alignment. Intensity shifts for other samples for Nd2Fe14B materials having various degrees of c‐axis alignment were determined and compared to the standard shifts giving an alignment factor representing the nature and extent of the crystallographic alignment in the sample. |
| Databáze: | OpenAIRE |
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