摘要
以化学镀铜石墨烯作为增强相,采用粉末冶金法制备石墨烯增强NiFe_(2)O_(4)基金属陶瓷复合材料,重点探讨了镀铜石墨烯添加量(质量分数,下同)对该金属陶瓷复合材料的气孔率、抗弯强度和抗热震性能的影响.结果表明:添加镀铜石墨烯可以有效提高NiFe_(2)O_(4)基金属陶瓷复合材料的致密度、抗弯强度和抗热震性能;当镀铜石墨烯添加量为3%时,材料的气孔率获得最小值2.30%,抗弯强度达到最大值71.03 MPa,强度剩余率为95.01%;添加适合的石墨烯可以改善相界面的结合强度,进而提升复合材料的抗弯强度和抗热震性能.
Graphene reinforced NiFe_(2)O_(4) based cermet composites were prepared by powder metallurgy with electroless copper-plated graphene as the reinforcement phase.The effects of copper-plated graphene addition amount(mass fraction,the same as below)on porosity,bending strength,and thermal shock resistance of NiFe_(2)O_(4) based cermet composites were studied.The results show that the addition of copper-coated graphene can effectively improve the density,bending strength,and thermal shock resistance of NiFe_(2)O_(4) based cermet composites.When the amount of copper-coated graphene is 3%,the porosity of the material is 2.30%,the bending strength is 71.03 MPa,and the residual strength is 95.01%.The addition of graphene in the appropriate range can improve the bonding strength of the phase interface,which is conducive to the improvement of bending strength and thermal shock resistance.
作者
王雪芹
钱映
张志刚
Wang Xueqin;Qian Ying;Zhang Zhigang(Northeastern University,Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education),Shenyang 110819,China;Northeastern University,School of Metallurgy,Shenyang 110819,China)
出处
《材料与冶金学报》
北大核心
2025年第2期182-187,共6页
Journal of Materials and Metallurgy
基金
中央高校基本科研业务专项资金资助项目(N2325007,N2125015)。
作者简介
王雪芹(1997-),女,硕士研究生,E-mail:1099482704@qq.com;通讯作者:张志刚(1983-),男,副教授,E-mail:zhangzg@smm.neu.edu.cn.
