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注射成型烧结永磁铁氧体辐射环的制备及脱脂工艺研究 被引量:2
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作者 李青华 王文光 +3 位作者 柴立民 左珑 张深根 田建军 《金属热处理》 EI CAS CSCD 北大核心 2007年第11期74-76,共3页
应用粉末注射成型(PIM)烧结技术制备了锶铁氧体辐射环,并对其微观组织、磁性能、脱脂及烧结工艺进行了研究。结果表明,粉末注射成型样品采用溶剂脱脂、热脱脂和烧结工艺处理后,得到的辐向取向永磁环脆性降低,开裂明显减少,环形保持良好... 应用粉末注射成型(PIM)烧结技术制备了锶铁氧体辐射环,并对其微观组织、磁性能、脱脂及烧结工艺进行了研究。结果表明,粉末注射成型样品采用溶剂脱脂、热脱脂和烧结工艺处理后,得到的辐向取向永磁环脆性降低,开裂明显减少,环形保持良好。其密度达到4.89g/cm3,磁性能参量如下:剩余磁感应强度Br为0.398T,内禀矫顽力Hcj为236.8kA/m,最大磁能积(BH)max为29.2kJ/m3,该磁性能水平与传统粉末冶金磁体的磁性能相当,将注射成型烧结技术应用于永磁铁氧体的制备具有很好的应用前景。 展开更多
关键词 粉未注射成型(PIM) 锶铁氧体 辐向取向永磁环 磁性能
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Sintering products molded by injecting ceramic and metal powders
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作者 刘平安 曾令可 李秀艳 《Journal of Central South University of Technology》 2005年第3期269-271,共3页
The injection molding products with different volume ratios of ZrO2 ceramic powder to 316L stainless steel powder were prepared. Properties and structure of the products were characterized by X-ray diffraction(XRD),... The injection molding products with different volume ratios of ZrO2 ceramic powder to 316L stainless steel powder were prepared. Properties and structure of the products were characterized by X-ray diffraction(XRD), scanning electron microscope(SEM) and transmission electron microscope (TEM). The results show that the compressive stress exists in the products and the bend strength reaches 300MPa. ZrO2 phase and stainless steel phase are uniform in samples. The toughness of ceramic increases with the increasing the content of stainless steel. Through TEM study of the interface, some crystalline orientation relationships are determined. 展开更多
关键词 metal ceramic powder injection molding TOUGHNESS STRESS
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