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Production of titanium and titanium-alloy glass ceramic coating

A technology of glass ceramics and titanium alloys, applied in the field of biological coating and glass ceramics, can solve the problems of difficult coating composition and crystal structure, high cost and high equipment requirements, and achieve the effect of excellent mechanical properties and good biological activity.

Inactive Publication Date: 2007-06-20
INST OF METAL RESEARCH - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, plasma spraying is carried out at high temperature, the coating composition and crystal structure are difficult to control, and the equipment requirements are high, the cost is expensive, and the long-term implantation tends to loosen

Method used

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  • Production of titanium and titanium-alloy glass ceramic coating
  • Production of titanium and titanium-alloy glass ceramic coating
  • Production of titanium and titanium-alloy glass ceramic coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Analytical pure CaCO 3 , Na 2 CO 3 ,TiO 2 , ZrO 2 and H 3 PO 4(weight concentration 85%) was used as raw material to prepare glass slurry with 1-10# components as described in Table 1, and the raw material was mixed evenly with an electric mixer, and then placed in a drying oven at 50° C. for 24 hours. Pound the dried raw material into powder (with a particle size of 5-10 μm) and place it in a platinum crucible at 1350°C for 0.5h, take it out immediately, pour it on a stainless steel plate, and press it quickly to obtain glass.

[0030] Table 1 CaO-P 2 o 5 -Na 2 O-TiO 2 -ZrO 2 glass composition

[0031] serial number

Embodiment 2

[0033] The obtained glass 2# is ball-milled into powder (with a particle size of 1-10 μm). The glass-ceramic powder is made into 0.01M methanol slurry, and the pure titanium rod is sandblasted with alumina with a particle size of 0.5mm (surface roughness is 1μm), and then suspended with a thin wire, lifted at a speed of 1mm / s, and placed in the air. After natural drying in medium temperature, keep it in a resistance furnace at 700°C for 1 hour, and then cool down with the furnace. The macro image of the real object is shown in Figure 1, and the X-ray diffraction pattern of the coating surface is shown in Figure 2.

Embodiment 3

[0035] The obtained glass 4# is ball-milled into powder (with a particle size of 1-10 μm). The glass ceramic powder is made into 2M methanol slurry, the Ti6Al4V alloy sheet is sandblasted with alumina with a particle size of 3mm (surface roughness is 5μm), and then suspended with a thin wire, lifted at a speed of 5mm / s, and naturally in the air After drying, keep it in a resistance furnace at 900°C for 1 hour, and then cool down with the furnace. The X-ray diffraction pattern of the coating surface is shown in Figure 3.

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Abstract

Production of titanium and titanium alloy glass ceramic coating is carried out by mixing raw materials, drying, heating while melting, press to prepare glass, grinding into powder, adding into methanol to prepare slurry, sand blowing by alumina, immersing pure titanium, Ti6A14V, Ti29Nb13Ta4.6Zr and Ti24Nb4Zr7.6Sn alloy into mixed solution, leaching and high-temperature sintering to obtain the final product. The glass ceramic consists of CaO and P205 80-90mol%, Na2O 4-7mol%, TiO2 and ZrO2 residues. It is non-toxic, has better biological activity and binding ability. It can be used to induce implant surface bone growth.

Description

Technical field: [0001] The invention relates to the fields of biological coatings and glass ceramics, in particular to the field of preparation of surface active coatings when titanium and titanium alloys are used as hard tissue repair and replacement materials, specifically a method for preparing titanium and titanium alloy glass ceramic coatings. Background technique: [0002] In developed countries, arthritis and fractures are one of the main reasons why the elderly cannot walk. In Japan, there are 100,000 cases of artificial hip joint replacement and artificial knee joint surgery every year. Therefore, it is of great significance to develop artificial joints and artificial bones with long-term stable quality in the market. See References [1]: Li Qing. Titanium Alloy Surface Coating Applied to Bio-Bone Research Bio-Orthopedic Materials and Clinical Research. 2004, 1[3]: 45-49. Titanium and titanium alloys have become important hard tissue repair and replacement material...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23D5/02C23D1/02C23D3/00C23D7/00C23D9/00B05C3/02
Inventor 郑彩云李述军陶晓杰郝玉琳杨锐郭正晓
Owner INST OF METAL RESEARCH - CHINESE ACAD OF SCI