Preparation method of fiber reinforced porous magnesium
A technology of porous magnesium and fiber, which is applied in the preparation of new porous materials and fiber reinforced porous magnesium or magnesium alloys. It can solve the problems that the strengthening process performance is difficult to control accurately and the strengthening effect is limited, so as to achieve accurate and controllable structural characteristics. Enhance the strengthening effect and improve the effect of mechanical properties
Inactive Publication Date: 2015-09-16
SHANGHAI JIAO TONG UNIV
View PDF4 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, a single strengthening method not only has limited strengthening effects, but also the strengthening process and performance after strengthening are not easy to accurately control
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] The invention relates to a new strengthening method of porous magnesium, which integrates the preparation process and strengthening process of porous magnesium, adopts conventional metallurgical casting and electrochemical corrosion methods, and at the same time through the composite strengthening method of structure optimization and organization optimization. The performance and structure of porous magnesium are improved to prepare strong and tough porous magnesium or porous magnesium alloy; the spatial structure of the strong and tough porous magnesium or porous magnesium alloy is controlled by the three-dimensional spatial structure of the pore-forming fiber, and the reinforcement method is determined by the reinforcing phase It is determined by the spatial distribution and structure of the reinforcing fibers in the medium.
[0024] The present invention will be described in detail below in conjunction with specific embodiments. It should be noted that those skilled ...
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
Login to View More Abstract
The invention relates to a preparation method of fiber reinforced porous magnesium. The fiber reinforced porous magnesium includes a matrix and a reinforcement phase, wherein the matrix is porous magnesium, and the reinforcement phase is metallic reinforcement fiber. The preparation method includes: weaving or winding metallic pore-forming fiber and metallic reinforcement fiber with different corrosion potentials into a three-dimensional space configuration, combining the three-dimensional space configuration with metal magnesium into a metal fiber / magnesium composite structure through casting or powder metallurgy, then removing pore-forming fiber by electrochemical method, letting the remaining metallic reinforcement fiber form the reinforcement phase and porous magnesium form the matrix. The porosity, pore size, pore distribution and pore connectivity of porous magnesium are precisely controlled through the space configuration woven or winded by the pore-forming fiber, and the form distribution and volume fraction of the reinforcement phase are precisely controlled by the space configuration woven or winded by the reinforcement fiber. The method provided by the invention enhances the reinforcement effect, lowers the process cost, and makes the porous magnesium structure precisely controllable and the mechanical properties excellent. And the prepared fiber reinforced porous magnesium can be applicable to biomedicine, energy exchange, purification and filtration, catalytic electrodes and other fields.
Description
technical field [0001] The invention relates to a preparation method of a novel porous material, in particular to a preparation method of fiber-reinforced porous magnesium or magnesium alloy applicable to biomedicine, energy exchange, purification and filtration, catalytic electrodes, etc., and belongs to the technical field of new materials. Background technique [0002] Due to their large surface area and excellent electrical, thermal, and mechanical properties, porous materials are widely used in biomedicine, energy exchange, and catalysis. In recent years, porous magnesium or magnesium alloys have been favored due to their excellent mechanical properties such as high specific strength and high specific stiffness, excellent structure, rich metal magnesium content, and low price. The traditional method of strengthening porous magnesium is mainly through alloying, such as preparing porous magnesium alloy, or preparing gradient structure, such as preparing porous magnesium w...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): C22C49/04C22C47/08C22C47/14C22C111/00
Inventor 何国江国锋
Owner SHANGHAI JIAO TONG UNIV