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Ti/apatite coating material intermetallic compound transition layer preparing method

An intermetallic compound and coating material technology, which is applied to coatings, devices for coating liquids on surfaces, pre-treatment surfaces, etc. The process is simple and adjustable, and the effect of improving corrosion resistance

Inactive Publication Date: 2006-10-25
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Al 2 o 3 The transition layer is mostly obtained by sandblasting. Although the transition layer has good corrosion resistance and biological inertness, it is brittle and has a large difference in mechanical properties from the Ti matrix. The transition is not good, and the post-processing performance is not good.
In addition, although TiO with low metal ion dissolution can be prepared by anodic oxidation 2 transition layer, but there is a large difference in thermal expansion coefficient between it and the apatite outer coating, and the preparation process of this method is complicated, and it is difficult to obtain high-quality Ti substrate / transition layer / apatite coating material
Although the bioglass transition layer has certain biological activity, its mechanical properties and its bonding strength with the Ti matrix are not ideal.
The above-mentioned various transition layer materials cannot well solve the problem of bonding strength between coatings and the dissolution of metal ions.

Method used

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  • Ti/apatite coating material intermetallic compound transition layer preparing method
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  • Ti/apatite coating material intermetallic compound transition layer preparing method

Examples

Experimental program
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Effect test

Embodiment 1

[0013] Example 1, substrate preparation: using pure titanium as the substrate material, firstly use SiC sandpaper to polish the titanium substrate, then place the titanium substrate in distilled water for ultrasonic cleaning for 30 minutes, and then place the titanium substrate in 10% mass concentration Soak in HCl solution for 5 hours, take out the titanium substrate, and use acetone with a mass concentration of 99.5%, ethanol with a mass concentration of 99.7%, and deionized water to ultrasonically clean for 20 minutes, and finally dry the titanium sheet sample at 80 °C; suspend The preparation of liquid: get purity and be 99.5%, particle size is that 100 mesh mass percentages are 14.2% Al powder, and 71.8% mass concentration is that the ethanol of 99.7% and the sodium alginate of 14% are placed in the resin ball mill tank with agate ball After ball milling for 2 hours, pass through a 250-mesh sieve to obtain a slurry, and then mix the sieved slurry with ethanol with a mass c...

Embodiment 2

[0014] Example 2, substrate preparation: using pure titanium as the substrate material, firstly use SiC sandpaper to polish the titanium substrate, then place the titanium substrate in distilled water for ultrasonic cleaning for 30 minutes, and then place the titanium substrate in 15% mass concentration Soak in HCl solution for 7 hours, take out the titanium substrate, and use acetone with a mass concentration of 99.5%, ethanol with a mass concentration of 99.7%, and deionized water to ultrasonically clean for 20 minutes, and finally dry the titanium sheet sample at 80°C; suspend The preparation of liquid: get the Al powder that purity is 99.5%, and particle size is 130 mesh mass percentages and is 14.6%, and the mass concentration of 71.2% is that the ethanol of 99.7% and the sodium alginate of 14.2% are placed in the resin ball mill jar with agate ball After ball milling for 2 hours, pass through a 250-mesh sieve to obtain a slurry, then mix the sieved slurry with ethanol wit...

Embodiment 3

[0015] Example 3, substrate preparation: using pure titanium as the substrate material, first use SiC sandpaper to polish the titanium substrate, then place the titanium substrate in distilled water for ultrasonic cleaning for 30 minutes, and then place the titanium substrate in a 20% mass concentration Soak in HCl solution for 6 hours, take out the titanium substrate, and use acetone with a mass concentration of 99.5%, ethanol with a mass concentration of 99.7%, and deionized water for 20 minutes, and finally dry the titanium sheet sample at 80°C; suspend The preparation of liquid: get the Al powder that purity is 99.5%, and particle size is that 180 mesh mass percents are 14.3%, and the mass concentration of 71.3% is that the ethanol of 99.7% and the sodium alginate of 14.4% are placed in the resin ball mill jar with agate ball After ball milling for 2 hours, pass through a 250-mesh sieve to obtain a slurry, then mix the sieved slurry with ethanol with a mass concentration of...

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Abstract

The invention discloses the producing method of the transitional layer of the compound among the metals of the Ti / apatite coating material. The pure titanium is polished, cleaned and added into the HC1 solution to dip. Then it is cleaned by the acetone, the ethanol and the removing ion water, finally, it is dried under the temperature 80 degree; the A1 powder, the ethanol and the algae acid sodium are put into pitch ball milling jar with the agate ball to milling bally, the gained material mix with the ethanol to produce the material slurry; the mixing material slurry gained by the method of the dipping and drawing is smeared evenly on the titanium base body to dry, the smeared titanium base body sample is put in the vacuum stove, then the stove is vacuum, then the v-TiA1 chemical layer among the mater can be gained by the sinter and the nature cooling to the room temperature. The invention adopts the dipping-smearing-sintering process to gain the v-TiA1 transitional layer among the outer layers of the Ti base / apatite, finally, the v-TiA1 transitional layer having the merits such as the close, the high thickness and the roughness and the good connection with the base body and the outer coat can be produced.

Description

technical field [0001] The invention relates to a preparation method of an intermetallic compound transition layer, in particular to a preparation method of a Ti / apatite coating material intermetallic compound transition layer. Background technique [0002] Ti matrix / apatite coating materials can give full play to the mechanical properties such as toughness and strength of metal materials and the biological properties of biocompatibility and osteoinductivity of active outer coatings, so it has once become a hot spot in the field of biomaterials research. However, in clinical applications, it is found that the mismatch of the thermal expansion coefficient between the Ti matrix and the apatite outer coating will cause the coating to peel off, which will aggravate the wear and corrosion of the matrix material, and make the dissolution of metal ions more serious. This greatly limits the wide application of Ti matrix / apatite coating materials in the biological field. [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23F17/00B05C3/02B05D3/00B22F3/10C23G1/02C23G5/00
Inventor 王芬张玲
Owner SHAANXI UNIV OF SCI & TECH