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| Design and preparation of ZrO2/stainless steel composite with different electrical conductivity |
| LAI Xuping1，LIU Xili2，WANG Lianghui2 |
| （1. Naval Equipment Department, Chengdu 610036, China;2. School of Materials Science and Engineering,
Southwest Jiaotong University, Chengdu 610031, China） |
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Abstract Ordinary materials are not compatible with good conductivity and mechanical properties, using 316L
stainless steel powder and ZrO2 powder as raw materials, the gradient ZrO2/316L composite materials with the
volume fraction of 50%, 60%, 70%, 80% and 90% of 316L stainless steel powder were prepared by vacuum hot
pressing sintering method, respectively. The results show that the composite is a ceramic matrix composite when
the sintering temperature is 1 300 ℃ and the volume fraction of 316L is 50%. When the volume fraction increas‐
es to 60%, the composite starts to form a 316L skeleton, and as the volume fraction of 316L increases, its internal
stainless steel morphology changes from diffusely distributed independent spheres to linked in sheets and eventu‐
ally becomes a metal matrix composite. The hardness and resistivity of the composites decrease with the increas‐
ing volume fraction of 316L.
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Received: 15 October 2021
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2022, Vol. 32 
