Silicon carbide whisker rapidly and efficiently obtained on surface of carbon fiber reinforced composite material and preparation method of silicon carbide whisker
A technology for reinforced composite materials and silicon carbide whiskers, which is applied in the field of quickly and efficiently obtaining silicon carbide whiskers on the surface of carbon fiber reinforced composite materials and its preparation. It can solve the problems of difficulty in generating SiC whiskers and high equipment requirements, and achieve low equipment requirements. , Whisker uniformity, the effect of uniform whisker distribution
Active Publication Date: 2021-07-30
DALIAN UNIV OF TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The temperature of this method needs to be higher than the melting point of silicon, which requires high equipment, and this method can basically only generate SiC whiskers on one surface, so it is difficult to generate SiC whiskers on all surfaces of composite materials.
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
[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only some embodiments of the present invention, but not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordina...
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
| Property | Measurement | Unit |
|---|---|---|
| density | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides a silicon carbide whisker rapidly and efficiently obtained on the surface of a carbon fiber reinforced composite material and a preparation method of the silicon carbide whisker. The silicon carbide whisker is prepared by the following steps: pretreating a low-density carbon felt in a mixture consisting of silicon powder, graphite powder and a resin alcohol solution; and putting a carbon fiber reinforced composite material block into an interlayer of the pretreated carbon felt at a relatively low temperature, and growing the obtained product on each surface of the carbon fiber reinforced composite material after temperature treatment. The method has the advantages of low cost, low equipment requirement, simple and convenient process flow and the like, a large amount of SiC whiskers can be rapidly and efficiently prepared on the surface of the carbon fiber reinforced composite material, the whisker growth efficiency is high, and the generated whiskers are uniformly distributed.
Description
technical field [0001] The invention relates to a method for quickly and efficiently obtaining silicon carbide whiskers on the surface of a carbon fiber reinforced composite material and a preparation method thereof. Background technique [0002] At present, carbon fiber-reinforced carbon-based (C / C) and silicon carbide-based (C / SiC) composite materials have the advantages of low density, high specific strength and modulus, high temperature resistance, etc., and are widely used in the aerospace field, becoming a lightweight The main material of qualitative structure and exothermic structure. However, carbon-based materials are easily oxidized in an aerobic environment exceeding 400 °C, which will cause oxidation loss of carbon fibers or carbon matrix, greatly damage the mechanical properties of composite materials, and affect the safety of components. Therefore, it is necessary to carry out anti-oxidation protection for carbon fiber reinforced composites. Preparing ceramic...
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): C04B41/87
CPCC04B41/87C04B41/009C04B41/5059C04B35/806C04B41/4596C04B41/4556
Inventor 李佳艳郝建洁施伟
Owner DALIAN UNIV OF TECH