Technology for preparing titanium porcelain TiN/ZrTiSiN composite transition blocking layer for oral baked porcelain

A preparation process and barrier layer technology, applied in metal material coating process, coatings, dental preparations, etc., can solve the problems of coating peeling, implant failure, restricting the research of single coating, etc., to achieve low cost and improve the combination of Strength, effect of improving bond strength and thermal stability

Inactive Publication Date: 2012-12-05
SICHUAN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, foreign studies have found that as the implantation time prolongs, the coating gradually falls off, leading to implant failure
According to the analysis, during the heating or cooling process, residual stress is generated between the metal substrate and the coating, which limits the adhesion strength of the coating. These deficiencies ultimately limit further research on a single coating.

Method used

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  • Technology for preparing titanium porcelain TiN/ZrTiSiN composite transition blocking layer for oral baked porcelain
  • Technology for preparing titanium porcelain TiN/ZrTiSiN composite transition blocking layer for oral baked porcelain
  • Technology for preparing titanium porcelain TiN/ZrTiSiN composite transition blocking layer for oral baked porcelain

Examples

Experimental program
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Effect test

Embodiment 1

[0036]The preparation process of the TiN / ZrTiSiN composite transitional barrier layer for dental porcelain with high bonding strength and high thermal stability used in this example includes the following steps:

[0037] a. Clean the substrate material:

[0038] After cleaning the substrate material Ti matrix with hydrofluoric acid for 15 minutes, put it into acetone and absolute ethanol for 20 minutes of ultrasonic cleaning respectively, put it into a vacuum chamber after drying, and then evacuate to a degree of 5.0×10 -4 Pa;

[0039] b. Treatment of the substrate before deposition:

[0040] Under the vacuum condition of step a, clean with bias backsputtering for 10 minutes and pre-sputtering for 5 minutes to remove the substrate material Ti matrix and target impurities; the backsputtering power is 150 W; the pre-sputtering power is 150 W; The back-sputtering bias and pre-sputtering bias were -500 V and -150 V, respectively; the back-sputtering and pre-sputtering gases wer...

Embodiment 2

[0049] The operation steps of this example, the coating equipment used and other working conditions are the same as those of Example 1, and the deposition thickness of the double-layer transitional diffusion barrier layer is kept constant at 2.65 μm, and the deposition time of the TiN layer and the ZrTiSiN layer is adjusted to change the The thicknesses of the TiN layer and the ZrTiSiN layer in the double-layer transition barrier layer can also meet the high bonding strength and high thermal stability performance requirements of the titanium porcelain series.

[0050] In this example, the deposition time of the TiN layer was 70 minutes, and the deposition thickness was 0.9 μm; the deposition time of the ZrTiSiN layer was 80 minutes, and the thickness was 1.75 μm, so that the TiN / ZrTiSiN composite transition barrier layer sample was obtained. The obtained sample was analyzed by three-point bending test, and its bonding strength was 60 MPa. No titanium oxide was found at the por...

Embodiment 3

[0052] The operation steps of this example, the coating equipment used and other working conditions are the same as those of Example 1, and the deposition thickness of the double-layer transition barrier layer is kept constant at 2.65 μm, and the N in the TiN layer and the ZrTiSiN layer is adjusted. 2 The flow rate is used to change the deposition time of the TiN layer and ZrTiSiN layer on the double-layer transition barrier layer, and then change the deposition thickness of each layer, which can also meet the requirements of high bonding strength and high thermal stability of the titano-ceramic series.

[0053] N in this example 2 The flow rate is 60 Sccm, the deposition time of the TiN layer is 60 minutes, and the deposition thickness is 0.65 μm; the deposition time of the ZrTiSiN layer is 120 minutes, and the thickness is 2 μm, and the TiN / ZrTiSiN composite transition barrier layer sample is prepared. The obtained sample was analyzed by three-point bending test, and its bon...

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Abstract

The invention discloses a technology for preparing a TiN / ZrTiSiN composite transition blocking layer deposited between titanium and porcelain widely applied in biological human substitute materials, and belongs to the technical field of metallic baked porcelain repair in medical oral implant and repair. A radio frequency magnetron sputtering process is adopted in the technology, and the technology comprises the steps of plating pretreatment, bias backwashing, deposition of a TiN / ZrTiSiN composite transition coating and the like. The sintering temperature of the titanium and the porcelain after the deposited TiN / ZrTiSiN composite transition blocking layer is processed can reach 850 DEG C, and the bonding strength can reach 60MPa. The preparation technology is easy to operate and convenient to popularize. The blocking layer material is prevented from forming a thick unsound oxide film by blocking diffusion reaction between oxygen and titanium at a sintering temperature, and the bonding strength between the titanium and the porcelain is remarkably improved.

Description

technical field [0001] The invention belongs to the technical field of metal-ceramic restoration in medical oral implantation and restoration, and relates to a preparation process of a TiN / ZrTiSiN composite transitional barrier layer for enhancing the comprehensive performance between titanium and porcelain. Background technique [0002] Today, titanium and titanium alloys have been gradually used as implant materials in dental implant and restoration technology to replace traditional stainless steel and cobalt-chromium alloys, and are widely used in clinical medical research. Due to the long-term existence and accumulation of titanium in body fluids, it will cause various neurological disorders and has great potential harm; and titanium has a very high affinity for oxygen. Poor oxide film affects the bonding between titanium and ceramics, leading to planting failure, such as the literature [Chen Minfang, Wu Xiulan. Study on in vitro compatibility of HA / Ti gradient film mate...

Claims

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Application Information

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IPC IPC(8): C23C14/35C23C14/16C23C14/06A61K6/04A61K6/027
Inventor 刘波张彦坡林黎蔚
Owner SICHUAN UNIV
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