CAJ | 학술논문

利用机械合金化和放电等离子烧结技术制备了Fe73.5Cu1Nb3Si13.5B9非晶纳米晶合金块体磁性材料。采用XRD、SEM 和 DSC 分析了 Fe73.5Cu1Nb3Si13.5B9合金粉体的相组成、微观形貌和热物性参数；利用 Gleeble3500、SEM和VSM分析了烧结温度、升温速率、烧结压力、保温时间和冷却方式等烧结工艺参数对烧结块体抗压强度、压缩断口形貌和磁性的影响。结果表明，烧结温度的升高、烧结压力的增大和冷却速率的增加有利于提高烧结块体的抗压强度；升温速率的增加和保温时间的延长使烧结块体的抗压强度先增高后降低；同时，烧结温度的升高和保温时间的延长使烧结块体的饱和磁化强度增大，矫顽力先降低后增加。
이용궤계합금화화방전등리자소결기술제비료Fe73.5Cu1Nb3Si13.5B9비정납미정합금괴체자성재료。채용XRD、SEM 화 DSC 분석료 Fe73.5Cu1Nb3Si13.5B9합금분체적상조성、미관형모화열물성삼수；이용 Gleeble3500、SEM화VSM분석료소결온도、승온속솔、소결압력、보온시간화냉각방식등소결공예삼수대소결괴체항압강도、압축단구형모화자성적영향。결과표명，소결온도적승고、소결압력적증대화냉각속솔적증가유리우제고소결괴체적항압강도；승온속솔적증가화보온시간적연장사소결괴체적항압강도선증고후강저；동시，소결온도적승고화보온시간적연장사소결괴체적포화자화강도증대，교완력선강저후증가。
Bulk Fe73.5Cu1Nb3Si13.5B9 amorphous nanocrystalline alloys embedded by nanocrystalline are prepared by mechanical all-oying and spark plasma sintering. The dependence of the compressive strength and magnetic properties on sintering parameters is discussed. The phase composition, micro morphology and thermophysical properties of the alloy powders are analyzed. The com-pressive strength, compression fracture morphology and magnetic properties of sintered samples are measured. The results show that the compressive strength of the sintered samples increases initially and subsequently decreases with heating rate and holding time, suggesting that increasing sintering temperature, sintering pressure and cooling rate could be favorable for enhancing the compressive strength. The saturation magnetization and the coercivity show different behaviors with sintering temperature and hold-ing time.