Si-SiC Composite Impregnation Contact Layout to Reduce Adhesion
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Solution Overview
Problem
The existing methods for manufacturing Si—SiC-based composite structures face issues with adhesion between the impregnation metal supply body and the molded body, leading to reduced yield and manufacturing efficiency due to unpredictable adhesion variations, which complicates the removal process and results in discarded products.
Innovation Solution
A method involving a supply body with a specific surface contact configuration, including protrusions with controlled intervals and shapes, is used to impregnate molten Si into a molded body containing SiC, reducing adhesion and allowing for easier removal, thereby improving manufacturing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the entire lower surface of the impregnation metal supply body is in contact with the molded body, then the impregnation process can be performed, but the supply body adheres to the molded body causing reduced yield and manufacturing efficiency
Solution Approach 1:
The lower surface of the supply body is divided into multiple contact portions rather than a single continuous contact area. Each contact portion is separated by non-contact portions, creating a segmented contact pattern that reduces overall adhesion while maintaining impregnation functionality
Solution Approach 2:
Different regions of the supply body's lower surface have different properties: contact portions are designed to touch the molded body for impregnation, while non-contact portions are designed to remain elevated to prevent adhesion. This local differentiation of contact and non-contact zones optimizes both impregnation and adhesion control
2Manufacturing precision
If the supply body adheres to the molded body, then impregnation occurs, but the adhesion portion varies unpredictably making removal complicated
Solution Approach 1:
By segmenting the contact surface into discrete portions, the adhesion occurs only at specific predetermined locations rather than across the entire surface. This makes the adhesion pattern predictable and uniform across different products, simplifying the removal process
Solution Approach 2:
The contact portions are pre-designed and pre-positioned on the supply body before the impregnation process. This preliminary configuration ensures that adhesion will occur at known, predictable locations, allowing for standardized removal procedures
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach reduces adhesion, stabilizes the impregnation process, and enhances the uniformity of Si distribution, resulting in improved yield and performance consistency of the Si—SiC-based composite structures.
Implementation Method 1
heating a supply body containing Si under a state in which the supply body is in contact with the molded body
Implementation Method 2
impregnating a molten metal containing Si into a molded body containing SiC
Data Source
AI summary
Provided is a method of manufacturing a Si—SiC-based composite structure capable of improving the manufacturing efficiency of the Si—SiC-based composite structure. The method of manufacturing a Si—SiC-based composite structure includes a step of impregnating a molten metal containing Si into a molded body containing SiC by heating a supply body containing Si under a state in which the supply body is in contact with the molded body, wherein a contact portion of the supply body with the molded body is a part of a surface of the supply body facing the molded body.