Method for manufacturing nanometer titania ceramic whisker through titanium alloy micro-arc oxidation
A nano-titanium dioxide, micro-arc oxidation technology, applied in chemical instruments and methods, nanotechnology, crystal growth and other directions, can solve the problems of many whisker defects, cumbersome procedures, high energy consumption, etc., to achieve high purity, simple steps, easy effect of operation
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Embodiment 1
[0038] A method for preparing nano-titanium dioxide ceramic whiskers by micro-arc oxidation of titanium alloys, comprising the following steps: the model is TC 4 The titanium alloy samples were pretreated by first polishing, followed by ultrasonic cleaning in absolute ethanol for 10 min. The pretreated titanium alloy sample was placed in the stainless steel electrolytic cell of the micro-arc oxidation system, with the titanium alloy as the anode and the stainless steel as the cathode, micro-arc oxidation was performed at 25°C for 40 minutes to obtain nano-titanium dioxide ceramic whiskers. Among them, the electrolyte solution of micro-arc oxidation is obtained by mixing water as a solvent, and mixing various solutes according to the following concentration ratio:
[0039]
[0040] The electrical parameters of micro-arc oxidation are: the current density is 3A / dm 2 ; The duty cycle is 20%; The frequency is 100Hz.
Embodiment 2
[0042] A method for preparing nano-titanium dioxide ceramic whiskers by micro-arc oxidation of titanium alloys, comprising the following steps: the model is TC 4The titanium alloy samples were pretreated by first polishing, followed by ultrasonic cleaning in absolute ethanol for 20 min. The pretreated titanium alloy sample was placed in the stainless steel electrolytic cell of the micro-arc oxidation system, with the titanium alloy as the anode and the stainless steel as the cathode, micro-arc oxidation was performed at 35°C for 10 min to obtain nano-titanium dioxide ceramic whiskers. Among them, the electrolyte solution of micro-arc oxidation is obtained by mixing water as a solvent, and mixing various solutes according to the following concentration ratio:
[0043]
[0044] The electrical parameters of micro-arc oxidation are: the current density is 9A / dm 2 ; The duty cycle is 50%; The frequency is 400Hz.
Embodiment 3
[0046] A method for preparing nano-titanium dioxide ceramic whiskers by micro-arc oxidation of titanium alloys, comprising the following steps: the model is TC 4 The titanium alloy samples were pretreated by first polishing, followed by ultrasonic cleaning in absolute ethanol for 15 min. The pretreated titanium alloy sample was placed in the stainless steel electrolytic cell of the micro-arc oxidation system, with the titanium alloy as the anode and the stainless steel as the cathode, micro-arc oxidation was performed at 30°C for 25 minutes to obtain nano-titanium dioxide ceramic whiskers. Among them, the electrolyte solution of micro-arc oxidation is obtained by mixing water as a solvent, and mixing various solutes according to the following concentration ratio:
[0047]
[0048] The electrical parameters of micro-arc oxidation are: the current density is 6A / dm 2 ; The duty cycle is 35%; The frequency is 200Hz.
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