Multi-Component Alloy Plating Film With Ionic Liquid Composition Control
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Solution Overview
Problem
Existing methods struggle to form multi-component alloy plating films, particularly those containing Cr, with controlled composition and at practical processing speeds, due to challenges in simultaneously depositing metal elements with different redox potentials.
Innovation Solution
A method involving electrodeposition using a plating solution composed of an ionic liquid and water, with a specific domain ratio, allows for the formation of multi-component alloy plating films by continuously supplying multiple metal elements, including Cr, to achieve controlled composition and increased flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional plating methods are used to form multi-component alloy plating films, then the film can be deposited, but the composition cannot be controlled and the processing speed is insufficient
Solution Approach 1:
The patent changes the fundamental parameter of the plating solution from conventional aqueous or organic solutions to an ionic liquid-based solution. This parameter change enables simultaneous deposition of multiple metal elements with different redox potentials while maintaining controlled composition, resolving both the precision and productivity contradictions.
Solution Approach 2:
The ionic liquid acts as an intermediary medium that facilitates the simultaneous deposition of multiple metal elements. It mediates between metal ions with different redox potentials, allowing them to co-deposit in controlled ratios while maintaining high processing speed, thus resolving the composition control issue without sacrificing productivity.
2Adaptability or versatility
If metal elements with different redox potentials are deposited simultaneously, then multi-component alloy can be formed, but the composition control becomes difficult
Solution Approach 1:
By changing the solvent parameter to ionic liquid, the patent achieves simultaneous deposition of metal elements with different redox potentials while maintaining precise atomic ratio control. The ionic liquid's unique properties enable this versatile multi-component formation with controlled composition.
Solution Approach 2:
The patent employs feedback control through the ionic liquid medium, which responds to the deposition process and adjusts the dissolution and deposition rates of different metal elements accordingly. This feedback mechanism maintains precise atomic ratios even when forming versatile multi-component alloys with different redox potentials.
3Adaptability or versatility
If Cr is included in the multi-component alloy plating film, then the film composition becomes more complex, but the crystalline structure formation becomes difficult
Solution Approach 1:
The patent changes the plating solution parameter to ionic liquid, which enables the formation of Cr-containing multi-component alloys with controlled crystalline structures. The ionic liquid medium facilitates the simultaneous deposition of Cr with other metal elements while maintaining atomic ratio control and promoting crystalline structure formation.
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
The method enables the formation of multi-component alloy plating films with controlled composition and improved processing speed, resulting in films with excellent mechanical properties and balanced strength-toughness, suitable for various applications.
Implementation Method 1
a formation step of forming a multi-component alloy plating film by electrodeposition with use of a plating solution that includes a plurality of types of metal elements, an ionic liquid, and water
Data Source
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AI summary
A method for forming a multi-component alloy plating film includes formation step of forming a multi-component alloy plating film by electrodeposition with use of a plating solution that includes a plurality of types of metal elements, an ionic liquid, and water, the multi-component alloy plating film containing the plurality of types of metal elements as principal components. The plating solution has a non-polar domain and a polar domain, the polar domain having a volume of not more than 10 when the non-polar domain has a volume of 1. With this configuration, the degree of flexibility of the types of metal elements to be used is increased and the composition is controlled, so that a multi-component alloy plating film is formed at a practical processing speed.