Biodegradable iron-zinc alloy and preparation method thereof

An iron-zinc and biological technology, applied in the field of biodegradable iron-zinc alloy and its preparation, can solve the problems of hindering the corrosion process of the iron-zinc alloy substrate, slow electrodeposition speed, and large difference in melting point, etc. Degradability and mechanical properties, fast cooling effect

Active Publication Date: 2018-09-07
JIANGXI UNIV OF SCI & TECH
View PDF1 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the melting points of the two are very different, and it is impossible to obtain iron-zinc alloys by conventional smelting methods.
[0005] At present, the preparation method of iron-zinc alloy mainly adopts the method of electrodeposition, but the speed of electrodeposition is very slow, and oxygen atoms will be introduced

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
  • Biodegradable iron-zinc alloy and preparation method thereof
  • Biodegradable iron-zinc alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0046] Example 1

[0047] Using 50μm iron powder and 50μm zinc powder as raw materials, weighing 0.9g iron powder and 0.1g zinc powder in a mass ratio of 90:10, ball milling under the protection of 99.999% high purity argon, ball mill speed 350r / min, ball-to-battery ratio 10:1. Ball milling time is 40h. After ball milling, iron-zinc supersaturated solid solution alloy powder is obtained.

[0048] The obtained iron-zinc supersaturated solid solution alloy powder is placed in the molding chamber of the optical fiber sintering system, and the sintering temperature is controlled under the process conditions of 99.999% high-purity argon protection, spot diameter 100μm, laser power 180W, and scanning speed 10mm / s At 1300°C, a biodegradable iron-zinc alloy is prepared by a selective laser melting process.

[0049] Phase inspection found ( figure 1 ), the prepared iron-zinc alloy only has iron diffraction peaks, indicating that zinc is completely dissolved in the iron matrix to form a super...

Example Embodiment

[0052] Example 2

[0053] Using 50μm iron powder and 50μm zinc powder as raw materials, weighing 0.9g iron powder and 0.1g zinc powder in a mass ratio of 90:10, ball milling under the protection of 99.999% high purity argon, ball mill speed 350r / min, ball-to-battery ratio 10:1. Ball milling time is 40h. After ball milling, iron-zinc supersaturated solid solution alloy powder is obtained.

[0054] Under the process conditions of 99.999% high-purity argon protection, spot diameter 100μm, laser power 100W, and scanning speed 25mm / s, the sintering temperature is controlled to 1000°C, and the iron-zinc alloy is prepared by a selective laser melting process.

[0055] Phase detection found that the prepared iron-zinc alloy only has iron diffraction peaks, indicating that zinc is completely dissolved in the iron matrix to form a supersaturated solid solution; the grain size is 5-12μm; electrochemical analysis found that the iron-zinc alloy is in the simulated body fluid Corrosion potential ...

Example Embodiment

[0056] Example 3

[0057] Using 50μm iron powder and 50μm zinc powder as raw materials, weighing 0.9g iron powder and 0.1g zinc powder in a mass ratio of 90:10, ball milling under the protection of 99.999% high purity argon, ball mill speed 350r / min, ball-to-battery ratio 10:1. Ball milling time is 40h. After ball milling, iron-zinc supersaturated solid solution alloy powder is obtained.

[0058] Under the process conditions of 99.999% high-purity argon protection, spot diameter 100μm, laser power 80W, and scanning speed 30mm / s, the sintering temperature is controlled to 800℃, and the iron-zinc alloy is prepared by a selective laser melting process.

[0059] Phase detection found that the prepared iron-zinc alloy only has iron diffraction peaks, indicating that zinc is completely dissolved in the iron matrix to form a supersaturated solid solution; the grain size is 5-10μm; electrochemical analysis found that the iron-zinc alloy is in the simulated body fluid Corrosion potential in ...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Corrosion potentialaaaaaaaaaa
Corrosion current densityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a biodegradable iron-zinc alloy and a preparation method thereof, and belongs to the technical field of design and manufacture of biomedical iron-zinc alloys. The iron-zinc alloy consists of 80-95% of iron and 5-20% of zinc according to the mass percentage. The preparation method comprises the steps: preparing an iron powder and a zinc powder according to the designed components, carrying out ball milling for more than 20 h at the rotational speed of 240-400 r/min under protection of argon gas, to obtain an iron-zinc alloy powder; then using the iron-zinc alloy powder,and under the protection of argon gas, adopting a selective laser sintering process, controlling the laser power to 100-200 W, controlling the scanning rate to 10-30 mm/s, controlling the sintering temperature to 750-1400 DEG C, controlling the light spot diameter to 80-120 [mu]m, and thus preparing the iron-zinc alloy. The biodegradable iron-zinc alloy is molded by combining mechanical alloyingwith selective laser sintering. The biodegradable iron-zinc alloy has suitable degradation rate, high mechanical strength and good biocompatibility, and has a good application prospect in the field ofbone tissue repair.

Description

technical field [0001] The invention relates to a biodegradable iron-zinc alloy and a preparation method thereof, and belongs to the technical field of biomedical iron-zinc alloy design and manufacture. Background technique [0002] Biodegradable materials have attracted great attention in recent years. Currently common biodegradable materials are mainly divided into three categories, including biopolymers, bioceramics and biodegradable metals. Among them, the strength of biopolymer materials is insufficient, and the plasticity and toughness of bioceramics are poor, so their clinical application is greatly limited. Recently, the research of a new generation of medical metal materials with biodegradable properties represented by iron-based and zinc-based alloys has received special attention. This new type of medical metal material has changed the traditional idea that people usually use metal implant materials as biologically inert materials, and cleverly uses the characte...

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
IPC IPC(8): C22C38/00C22C33/02B22F9/04
CPCB22F9/04B22F2009/041C22C33/0278C22C38/002
Inventor 帅词俊杨友文彭淑平
Owner JIANGXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap