Abstract：The paper discusses the process of optimizing parameters of GBDP by DOE theory detailedly. A series of experiments are conducted through building correct models, setting main impact factors and its corresponding horizontal values. Results show that compared with the traditional experimental method, the DOE theory can obviously reduce experiment number, shorten experimental period and cut down the cost of research meanwhile. The coercivity of magnet increases from 1615.88 kA/m to 2292.48 kA/m, increasing by 41.9% under the guidance of DOE theory.
[1] 胡盛青, 陈洪，周朝辉．添加Dy烧结NdFeB磁 体 的 研 究 进 展[J]. 金属功能材料，2014, 21(6): 52. [2] Oliver Gutfleisch, Matthew A. Willard, Ekkes Brück, Christina H. Chen, S. G. Sankar, and J. Ping Liu. Magnetic Materials and Devices for the 21st Century: Stronger, Lighter, and More Energy Efficient [J]. Advanced Materials. 201, 23, 821[3] D. S. Li, M. Nishimoto, S. Suzuki, etal. Coercivity enhancement of Nd-Fe-B sintered magnets by grain boundary modification via reduction – diffusion process[J]. Materials Science and Engineering, 2009, 1(1): 012020.[4] Naoko Oono, Masato Sagawa, Ryuta Kasada. Prodution of thick high-performance sintered neodymium magnets by grain boundary diffusion treatment with dysprosium-nickel-aluminum alloy[J]. Journal of Magnetism and Magnetic Materials. 2011, 323(3): 297[5] 杜世举, 李建，程星华. 烧结钕铁硼晶界扩散技术及其研究进展[J]. 金属功能材料，2016, 23(1): 51. [6] 孙绪新，包小倩，高学绪，张茂才，董清飞，周寿增. 结Nd-Fe-B磁体表面渗镀Dy2O3对磁体显微组织和磁性能的影响[J].中国稀土学报，2009，27(1)：86[7] H. Sepehri-Amin, T. Ohkubo, S. Nagashima, M. Yano, T. Shoji, A. Kato, T. Schrefl, K. Hono. High-coercivity ultrafine-grained anisotropic Nd–Fe–B magnets processed by hot deformation and the Nd–Cu grain boundary diffusion process[J]. Acta Materialia, 2013, 61, 6622 [8] 王建东，姜淑君，董 辉. 基于 DOE 试验设计方法的某六缸柴油机国Ⅴ性能开发[J]. 内燃机与动力装置 I．C．E ＆ Powerplant，2014, 31(4): 21.[9] 雷刚，王希杰，张攀. 基于 DOE 的汽车碰撞优化分析[J].重庆理工大学学报（自然科学），2011, 25(2),21.[10]向青春，张伟，邱克强，孙治国，孙爱新，杨桂星. 基于DOE的大型下架体铸钢件铸造工艺优化研究[J].机械工程学报，2017，53(06):88.[11]Fabio Aparecido Alves da Silva, Daniel Pedro Willemann, Analucia Vieira Fantin, Mauro Eduardo Benedet, Armando Albertazzi Gon?alves. Evaluation of a novel compact shearography system with DOE configuration[J]. Optics and Lasers in Engineering, 2017.[12]赵亚丽,李荣,黄宁.试验设计方法在长花键轴渗碳淬火变形控制中的应用[J].金属加工(热加工), 2012(S2):183-186. [13] 周磊，刘涛，林德，喻晓军. 复合靶气相沉淀制备晶界扩散稀土永磁材料的方法. 中国：CN104900359 A，2015.
2018, Vol. 25 
