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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_2O4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_2O4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.
Abstract：Graphene reinforced NiFe_2O4 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_2O4 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_2O4 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.
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基本信息:
DOI：10.14186/j.cnki.1671-6620.2025.02.012
中图分类号:TB333
引用信息:
[1]王雪芹 ,钱映 ,张志刚 .镀铜石墨烯添加量对NiFe_2O_4基金属陶瓷复合材料性能的影响[J].材料与冶金学报,2025,24(02):182-187.DOI:10.14186/j.cnki.1671-6620.2025.02.012.
基金信息:
中央高校基本科研业务专项资金资助项目(N2325007,N2125015)
2025-03-15
2025-03-15