Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method and product of sputtering and depositing bioactive gradient hydroxyapatite/Ti layer on Ti alloy surface

A hydroxyapatite, bioactive technology, applied in sputtering plating, metal material coating process, coating and other directions, to achieve the effect of simple film-making process, increased stability, and improved bonding strength

Inactive Publication Date: 2004-04-07
TIANJIN UNIVERSITY OF TECHNOLOGY
View PDF0 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of RF / DC magnetron co-sputtering technology to prepare composition and structure dual-gradient bioactive layers on metal surfaces has not been reported.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and product of sputtering and depositing bioactive gradient hydroxyapatite/Ti layer on Ti alloy surface
  • Method and product of sputtering and depositing bioactive gradient hydroxyapatite/Ti layer on Ti alloy surface
  • Method and product of sputtering and depositing bioactive gradient hydroxyapatite/Ti layer on Ti alloy surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0017] Embodiment: a kind of method (see figure 1 ), characterized in that it is realized by the following steps:

[0018] ①Raw material powder mixed ball mill: Calcium hydrogen phosphate dihydrate (CaHPO 4 2H 2 O) and calcium carbonate (CaCO 3 ) was mixed and ball-milled at a molar ratio of 6:4 for 16 hours;

[0019] ② Hydrothermal reaction: add enough deionized water, the temperature is 90°C, and the reaction time is 2 hours;

[0020] ③Drying and grinding, the drying temperature is 80°C, and the drying time is 8 hours. ;

[0021] ④ Target material mixing: Hydroxyapatite (HA) powder is mixed with 10% calcium oxide (CaO) powder, and the time in target material mixing is 8 hours;

[0022] ⑤Cold press forming: the pressure is 200-300MPa;

[0023] ⑥ Sintering: the temperature is 1150°C, placed in an air furnace for 3 hours;

[0024] ⑦ Double-slant target sputtering: use a multi-target magnetron sputtering apparatus for double-slant target sputtering, and the flow rate of ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The method of sputtering and depositing bioactive gradient hydroxyapatite / Ti layer on Ti alloy surface includes the following steps: mixing and ball milling material powder; hydrothermal reaction; stoving and grinding; mixing target material; cold pressing at 200-300 MPa to form; sintering; double-inclined target sputtering; and heat treatment of the sputtered film. The product has multilayer structure of Ti alloy matrix, compact transition TiO2 layer I with dispersed hydroxyapatite, TiO2 reinforced transition hydroxyapatite layer II, and porous hydroxyapatite layer. The present invention realizes the double gradient of both component and structure, and raises the interface binding strength effectively. The present invention has simple film preparing process and homogeneous film thickness, is suitable for surface activation of implant with complicated shape, and can prepare hard tissue for clinical need, especially as bearing bone repairing and substituting material.

Description

(1) Technical field: [0001] The invention belongs to the technology of preparing bioactive layers on the surface of metals and alloys, in particular to a method for co-sputtering deposition of hydroxyapatite (HA) / titanium (Ti) gradient bioactive layers on the surface of titanium alloys and its products. (two) background technology: [0002] Titanium and titanium alloys with bioactive layers combine the excellent mechanical properties of metals with the good biocompatibility of HA, and are indispensable materials for clinically replacing human load-bearing bone and teeth. The interfacial bonding between the coating and the substrate and the interfacial bonding with human bone tissue is the key to determine the quality of such materials. At present, the surface bioactivation of medical metals is mainly based on the preparation of hydroxyapatite (HA) coatings or films on the surface. Common preparation processes include: plasma spraying, laser cladding, sol-gel, electrocrystall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A61L27/32C23C14/06C23C14/34
Inventor 陈民芳
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com