Titanium dioxide ceramic material prepared by sol-gel method

A ceramic material, titanium dioxide technology, applied in anodizing, ceramic products, metal material coating process and other directions, can solve the problems of poor compactness, corrosion resistance can not meet the needs of use

Active Publication Date: 2021-07-30
XIANGYA HOSPITAL CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since most of the films prepared by the sol-gel method are porous, their compactness is poor, which makes the corrosion resistance of the sol-gel coating unable to meet the needs of use in specific scenarios

Method used

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  • Titanium dioxide ceramic material prepared by sol-gel method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Sol-gel method prepared titanium dioxide ceramic material, including the following steps:

[0023] A. Take the magnesium alloy to a size of 6 × 6 × 2 mm by a medical magnesium alloy.

[0024] B. Pretreatment of the magnesium alloy, pretreatment includes degreasing, pickling, cleaning and drying, wherein the degreasing is preferably 10% sodium carbonate solution, the acid washing is 15% hydrochloric acid solution, and the cleaning treatment is anhydrous Ethanol ultrasound cleaning, drying under a nitrogen atmosphere;

[0025] C. Prepare micro-arc oxidation layers: the anode with magnesium alloy, at 10A · DM -2 The constant current density, the pulse frequency is 450Hz, the duty ratio of 40%, the termination voltage is 400 V, and the composition of the magnesium alloy is prepared, wherein the composition of the electrolytic solution is sodium hexamphosphate 35 g / L, hydroxide. Potassium 15g / L, hydroxide 8 g / L, phosphate dihydroine 12g / L, glycerol 25ml / L, triethanolam...

Embodiment 2

[0031] Sol-gel method prepared titanium dioxide ceramic material, including the following steps:

[0032] A. Take the magnesium alloy to a size of 6 × 6 × 2 mm by a medical magnesium alloy.

[0033] B. Pretreatment of the magnesium alloy, pretreatment includes degreasing, pickling, cleaning and drying, wherein the degreasing is preferably 10% sodium carbonate solution, the acid washing is 15% hydrochloric acid solution, and the cleaning treatment is anhydrous Ethanol ultrasound cleaning, drying under a nitrogen atmosphere;

[0034] C. Prepare micro-arc oxidation layers: the anode with magnesium alloy, at 10A · DM -2 The constant current density, the pulse frequency is 450Hz, the duty ratio of 40%, the termination voltage is 400 V, and the composition of the magnesium alloy is prepared, wherein the composition of the electrolytic solution is sodium hexamphosphate 35 g / L, hydroxide. Potassium 15g / L, hydroxide 8 g / L, phosphate dihydroine 12g / L, glycerol 25ml / L, triethanolam...

Embodiment 3

[0040] Sol-gel method prepared titanium dioxide ceramic material, including the following steps:

[0041] A. Take the magnesium alloy to a size of 6 × 6 × 2 mm by a medical magnesium alloy.

[0042]B. Pretreatment of the magnesium alloy, pretreatment includes degreasing, pickling, cleaning and drying, wherein the degreasing is preferably 10% sodium carbonate solution, the acid washing is 15% hydrochloric acid solution, and the cleaning treatment is anhydrous Ethanol ultrasound cleaning, drying under a nitrogen atmosphere;

[0043] C. Prepare micro-arc oxidation layers: the anode with magnesium alloy, at 10A · DM -2 The constant current density, the pulse frequency is 450Hz, the duty ratio of 40%, the termination voltage is 400 V, and the composition of the magnesium alloy is prepared, wherein the composition of the electrolytic solution is sodium hexamphosphate 35 g / L, hydroxide. Potassium 15g / L, hydroxide 8 g / L, phosphate dihydroine 12g / L, glycerol 25ml / L, triethanolami...

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Abstract

The invention relates to a titanium dioxide ceramic material prepared by a sol-gel method. Rare earth elements cerium and yttrium are doped on the surface of titanium dioxide porous ceramic by an ion implantation method. Essentially, ion implantation of rare earth elements can play a role in hole sealing, after ion implantation, a TiO2-Ce-Y composite ceramic material is formed on the surface of titanium dioxide ceramic or a near-surface area, and the corrosion resistance of porous titanium dioxide is improved. It is worthy of noting that the implantation amount of rare earth elements needs to be controlled within a reasonable range, if the implantation amount of the rare earth elements is too large, a Ce-Y film is formed on the surface of titanium dioxide ceramic, and if the implantation amount of the rare earth elements is too small, a proper hole sealing effect cannot be achieved, and the situations are not beneficial to improvement of the corrosion resistance of the porous titanium dioxide ceramic material.

Description

Technical field [0001] The present invention relates to the field of ceramic materials, and more particularly to a titanium dioxide ceramic material prepared from a sol-gel method. Background technique [0002] In the fields of orthopedics, oral surgery and thoracic surgery, high-strength materials for fracture repair and chest support are called bone fracture materials. The bone fixing material has many types of needle, plate, etc., which acts as a helper connection between bone blocks. At present, the extensive application of stainless steel and titanium alloys are much higher than the elastic modulus of human bone, and the resulting stress occlusion effect is not conducive to bone growth and healing. The magnesium alloy is close to the elastic modulus of the human bone and can effectively relieve stress occlusion effects. Magnesium alloys can provide stable mechanical properties in the early stage of fracture healing, gradually reduce their stress occlusion, so that the fractu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/46C04B35/624C04B38/00C04B41/85A61L31/08A61L31/02A61L31/14C23C18/12C25D11/30C23C14/48
CPCA61L31/022A61L31/088A61L31/14A61L2400/18A61L2420/06A61L2420/08C04B35/46C04B35/62222C04B35/624C04B38/0045C04B41/0027C04B41/009C04B41/5045C04B41/85C04B2235/3225C04B2235/3229C23C14/48C23C18/1216C23C18/1254C23C18/1295C25D11/024C25D11/026C25D11/30
Inventor 朱剑熹韩斐刘俊彦朱勇罗浩郭斌胡懿郃
Owner XIANGYA HOSPITAL CENT SOUTH UNIV
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