A graphene/stainless steel composite armor material
An armor material, stainless steel technology, applied in transportation and packaging, metal processing equipment, etc., can solve the problems of short service life, bulky, poor wear resistance, etc., and achieve the effect of low manufacturing cost, simple process operation and high production efficiency
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Embodiment 1
[0036] The present embodiment provides a kind of preparation method of graphene and stainless steel composite armor material, and concrete steps are as follows:
[0037] The graphene-coated stainless steel powder includes the following components in parts by mass: 0.05% of graphene and 99.95% of stainless steel. Graphene can be prepared by Hummer's method. Stainless steel is the following components by mass percentage: C: 0.03%; Si: 0.5%; Mn: 2.0%; P: 0.04%; Ni: 12.0%; Cr: 16.0%; Mo: 3.0%; the balance is Fe and unavoidable impurities; the particle size of stainless steel powder is 10μm.
[0038] 1) After the graphene is ultrasonically dispersed in a 95% alcohol solution, it is placed at a speed of 9000rpm, and the line speed is in a centrifugal nano-disperser of 115m / s to obtain the graphene alcohol solution after centrifugal dispersion. The number of layers of graphene nanosheets in the olefin alcohol solution is less than 10, accounting for more than 90% of all graphene na...
Embodiment 2
[0043] The graphene-coated stainless steel powder includes the following components in parts by weight: 9% graphene and 91% stainless steel. Stainless steel is the following components by mass percentage: C: 0.02%; Mn: 1.0%; S: 0.02%; Ni: 14.0%; Cr: 17.0%; Mo: 2.0%; the balance is Fe and unavoidable impurities . The particle diameter of the stainless steel powder was 100 μm.
[0044] 1) after the graphene is ultrasonically dispersed in the alcohol solution of 95% concentration, then it is 8000rpm to place the rotating speed, and the linear speed is in the centrifugal nano-disperser of 100m / s to obtain the graphene alcohol solution after the centrifugal dispersion, the In the graphene alcohol solution, graphene nanosheets with less than 10 layers account for more than 90% of all graphene nanosheets;
[0045] 2) The graphene nanosheet organic solution is atomized into small droplets under pressure through a spray device with a shower mesh size of 100 μm, and evenly sprinkled o...
Embodiment 3
[0049] The graphene-coated stainless steel powder includes the following components in parts by weight: 5% graphene and 95% stainless steel. Stainless steel is the following components by mass percentage: Si: 1.0%; P: 0.045%; S: 0.03%; Ni: 10.0%; Cr: 18.0%; Mo: 2.5%; the balance is Fe and unavoidable impurities . The particle diameter of the stainless steel powder was 60 μm.
[0050] 1) After graphene is ultrasonically dispersed in an organic solvent (concentration is 40% alcohol solution), then it is placed in a centrifugal nano-disperser with a speed of 7000rpm and a line speed of 85m / s to obtain the centrifugally dispersed graphene nanometer. Sheet organic solution, in the graphene nanosheet organic solution, the number of graphene nanosheet layers below 10 accounts for more than 90% of all graphene nanosheets;
[0051] 2) The graphene nanosheet organic solution is atomized into small droplets under pressure through a spray device with a shower mesh size of 180 μm, and ev...
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