Ceramic X-ray Focusing Electrode Joining
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Solution Overview
Problem
Conventional X-ray emitting devices face structural instability due to the joining of glass tubes and metal focusing electrodes, leading to mechanical weakness, thermal stress, and high manufacturing complexity, including difficulties in miniaturization and cost-effective production.
Innovation Solution
The use of ceramic-based materials for both the electron transfer and focusing parts, which can be easily joined using ceramic adhesives or hardened paste, eliminating the need for metallization and brazing, thereby enhancing structural integrity and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If glass tube and metal focusing electrode are joined using metallization and brazing, then electrical conductivity and thermal resistance are improved, but structural stability and manufacturing simplicity deteriorate
Solution Approach 1:
The patent applies homogeneity by making both the tube and focusing electrode from ceramic materials with matching thermal expansion coefficients. This eliminates the material incompatibility between glass and metal, allowing direct joining without complex metallization and brazing processes while maintaining electrical conductivity and structural stability.
Solution Approach 2:
The patent changes the material parameters by selecting ceramic materials with specific thermal expansion coefficients that match between the tube and focusing electrode. This parameter matching enables simplified joining processes while maintaining the required electrical and thermal properties.
2Reliability
If glass tube and metal focusing electrode are joined, then electrical conductivity is improved, but mechanical strength and thermal stress resistance worsen
Solution Approach 1:
The patent uses homogeneous ceramic materials for both components with matched thermal expansion coefficients, eliminating the mechanical weakness and thermal stress problems inherent in joining dissimilar materials like glass and metal.
Solution Approach 2:
The patent employs ceramic composite materials that provide both electrical conductivity and mechanical strength, replacing the composite joining of glass and metal with a homogeneous ceramic structure that inherently resists thermal stress and mechanical failure.
3Reliability
If metallization and brazing treatment is applied, then electrical conductivity is improved, but manufacturing cost and time increase
Solution Approach 1:
The patent eliminates complex metallization and brazing processes by using homogeneous ceramic materials that can be directly joined, significantly reducing manufacturing steps, cost, and time while maintaining electrical conductivity.
Solution Approach 2:
The patent extracts and eliminates the complex metallization and brazing processes from the manufacturing workflow by using materials that can be directly joined, thereby improving productivity and reducing manufacturing cost.
4Object-affected harmful factors
If glass tube is used, then X-ray absorption is minimized, but mechanical strength and durability deteriorate
Solution Approach 1:
The patent uses ceramic materials that combine the low X-ray absorption property of glass with the mechanical strength and durability of ceramics, creating a tube material that satisfies both requirements simultaneously.
Solution Approach 2:
The patent changes the material parameters by selecting ceramic compositions that maintain low X-ray absorption while providing enhanced mechanical strength and durability compared to conventional glass tubes.
Data Source
AI summary
The present invention provides an X-Ray emitting device that comprises a focusing electrode composed of a ceramic-based material, which can be manufactured by a simple process and is excellent in durability.