A kind of preparation method of titanium-based alloy anti-high temperature oxidation coating
A high-temperature oxidation-resistant, titanium-based alloy technology, applied in the direction of electrolytic inorganic material coating, etc., can solve the problems of reducing the bonding strength between the coating and the substrate, low bonding strength, expensive equipment, etc., to improve high-temperature oxidation resistance and simple preparation process , the effect of convenient operation
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Embodiment 1
[0026] First, the titanium-aluminum alloy sample (titanium-aluminum atomic ratio is 1:1) was polished to remove surface oxides with sandpaper, then ultrasonically cleaned in acetone and ethanol for 10 min, and finally dried with hot air for use. Add 50 mL of absolute ethanol, 50 mL of water, and 1 mL of tetraethyl orthosilicate (TEOS) to the beaker in sequence, and use 0.5 mol·L -1 Adjust the pH to about 2.0 with HAc, and stir at room temperature for 2 h to obtain a precursor solution for use. The former body solution is used as the electrolyte, the polished and cleaned titanium-aluminum alloy sample (titanium-aluminum atomic ratio is 1:1) is used as the cathode, the graphite electrode is used as the counter electrode, the electrode spacing is controlled at 1cm, and the current density is controlled at -0.1mAcm -2 , the deposition time is 1000s, after the deposition is completed, the working electrode is rinsed with deionized water and then dried at 40°C to obtain a micro-nano...
Embodiment 2
[0030] First, the titanium-aluminum alloy sample (titanium-aluminum atomic ratio is 3:1) was polished to remove surface oxides with sandpaper, then ultrasonically cleaned in acetone and ethanol for 10 min, and finally dried with hot air for use. Add 100mL of absolute ethanol, 75mL of water, 10mL of orthomethylsilicate (TMOS) to the beaker in sequence, and use 2.0mol·L -1 HNO 3 Adjust the pH to about 6.0, and stir at room temperature for 6 hours to obtain a precursor solution for use. The former body solution was used as the electrolyte, and the polished and cleaned titanium-aluminum alloy sample (titanium-aluminum atomic ratio was 3:1) was used as the cathode, and the graphite electrode was used as the counter electrode. The electrode spacing was controlled at 10cm, and the current density was controlled at -5.0mAcm -2 , the deposition time is 30s, after the deposition is completed, the working electrode is rinsed with deionized water and then dried at 150°C to obtain a micro...
Embodiment 3
[0034] First, the titanium-aluminum alloy sample (titanium-aluminum atomic ratio is 3:1) was polished to remove surface oxides with sandpaper, then ultrasonically cleaned in acetone and ethanol for 10 min, and finally dried with hot air for use. Add 75 mL of absolute ethanol, 100 mL of water, 3 mL of tetraethyl orthosilicate (TEOS) and 2 mL of orthomethyl orthosilicate (TMOS) to the beaker in sequence, and use 1.0 mol·L -1 Adjust the pH to about 6.0 with HCl, and stir at room temperature for 6 h to obtain a precursor solution for use. The previous body solution was used as the electrolyte, and the polished and cleaned titanium-aluminum alloy sample (titanium-aluminum atomic ratio was 3:1) was used as the cathode, and the graphite electrode was used as the counter electrode. The electrode spacing was controlled at 5cm, and the current density was controlled at -5.0mAcm -2 , the deposition time is 30s, after the deposition is completed, the working electrode is rinsed with deion...
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