Method of preparing Ni-Co nano compound multi-layered alloy
A nano-composite and alloy technology, applied in coatings, electrolytic coatings, etc., can solve the problems of no leap-forward improvement in performance, no solution, lack of coating microstructure control, and lack of performance design, so as to facilitate structural design and control, Effects of slowing down, good corrosion and wear resistance
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Embodiment 1
[0021] Mix 2nm TiO with a mass ratio of 1:1 2 The nanopowder is made into a paste with distilled water, 5wt.% benzyltriethylammonium chloride is added, and the grinding medium is zirconia grinding balls, which are ground in a ball mill for 20 minutes, and the material is discharged to obtain pretreated TiO 2 nanoparticles.
[0022] Take 800mL of deionized water, add NiSO under magnetic stirring 4 ·6H 2 O 200g, CoSO 4 ·7H 2 O 20g, NiCl 2 ·6H 2 O 15g, H 3 BO 3 30g, add the pretreated TiO 2 Nanoparticles 15g, dilute to 1L with deionized water after feeding, mechanically stir for 60min, then ultrasonically disperse for 15min to mix evenly;
[0023] The electrolyte is heated to 70°C, the steel sheet is used as the cathode and the nickel plate is used as the anode, and the three-current cycle step method is used for electrodeposition under mechanical stirring, and the deposition parameter is i 1 =5A / dm 2 , t 1 = 1 min; i 2 =3A / dm 2 , t 2 = 10min; i 3 =3A / dm 2 , t 3...
Embodiment 2
[0025] According to the mass ratio of 1:1 ratio will be 20nm SiO 2 The nano-powder is made into a paste with distilled water, and 2wt.% of N,N,N-trimethyl-1-tetradecylammonium bromide is added, and the grinding medium is zirconia grinding balls, and it is ground in a ball mill for 50 minutes to produce material, to obtain the pretreated SiO 2 nanoparticles.
[0026] Take 900mL of deionized water, add NiSO under magnetic stirring 4 ·6H 2 O 250g, CoSO 4 ·7H 2 O 30g, NiCl 2 ·6H 2 O 20g, H 3 BO 3 20g, add pretreated SiO 2Nanoparticles 25g, dilute to 1L with deionized water after feeding, stir mechanically for 30min, then ultrasonically disperse for 10min and mix evenly;
[0027] The electrolyte is heated to 60°C, the steel sheet is used as the cathode and the nickel plate is used as the anode, and the three-current cycle step method is used for electrodeposition under mechanical stirring, and the deposition parameter is i 1 =6A / dm 2 , t 1 = 5min; i 2 =5A / dm 2 , t ...
Embodiment 3
[0029] Adjust the 150nm TiN nano powder into a paste with distilled water according to the mass ratio of 1:1, add 0.1wt.% cetyltrimethylammonium chloride, use zirconia grinding balls as the grinding medium, and grind in a ball mill for 30 minutes , and discharged to obtain pretreated TiN nanoparticles.
[0030] Take 850mL of deionized water, add NiSO under magnetic stirring 4 ·6H 2 O 300g, CoSO 4 ·7H 2 O 40g, NiCl 2 ·6H 2 O 35g, H 3 BO 3 15g, add 40g of pretreated TiN nanoparticles, dilute to 1L with deionized water after adding, mechanically stir for 90min, then ultrasonically disperse for 20min and mix well;
[0031] The electrolyte was heated to 55°C, with the steel sheet as the cathode and the nickel plate as the anode, and under mechanical stirring, the three-current cycle step method was used for electrodeposition, and the deposition parameter was i 1 =5.9A / dm 2 , t 1 = 3min; i 2 =4A / dm 2 , t 2 = 5min; i 3 =2A / dm 2 , t 3 =5min; repeat cycle N=15, take out...
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