Ferromagnetic Fibre Composite Coating for Lightweight Magnetic FRPC
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Solution Overview
Problem
Fibre reinforced polymer composites (FRPCs) lack enhanced magnetic properties and efficient manufacturing methods for ferromagnetic fibre plies, limiting their structural and functional capabilities in applications requiring both strength and magnetism.
Innovation Solution
A ferromagnetic fibre reinforced polymer composite is created by encapsulating ferromagnetic fibre plies in a binder matrix, with a layer of metal or ionic metal compound nucleation material between the fibre ply and the ferromagnetic material, allowing for patterned deposition of ferromagnetic materials like iron, nickel, or cobalt, and using conductive nucleation materials like silver to facilitate ionic deposition without acid washing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If ferromagnetic material is deposited directly onto fibre ply, then magnetic properties are achieved, but deposition requires acid washing and complex surface preparation
Solution Approach 1:
A nucleation material layer is introduced as an intermediary between the fibre ply and ferromagnetic material. This nucleation layer (comprising metal or ionic metal compound) enables ionic deposition of ferromagnetic material without requiring acid washing of the fibre surface, thereby simplifying the manufacturing process while ensuring reliable magnetic properties.
2Strength
If multiple fibre plies are used to provide structural strength, then mechanical strength is improved, but overall composite mass increases
Solution Approach 1:
Ferromagnetic properties are applied locally only to specific fibre plies rather than all plies. The composite structure includes at least one ferromagnetic fibre ply interspersed between non-ferromagnetic fibre plies, providing necessary magnetic functionality while minimizing overall mass compared to making all plies ferromagnetic.
Solution Approach 2:
The invention uses a composite structure combining ferromagnetic and non-ferromagnetic fibre plies within a binder matrix. This multi-material approach allows the composite to achieve both structural strength and magnetic properties while optimizing mass by using ferromagnetic material only where functionally required.
3Stability of the object's composition
If ferromagnetic fibre plies are encapsulated in binder matrix, then structural integrity is improved, but magnetic properties may be reduced
Solution Approach 1:
The binder matrix is used as a thin encapsulating layer that provides structural integrity while minimizing interference with magnetic properties. The ferromagnetic fibre plies are substantially encapsulated in the binder matrix, but the thin film nature of the binder allows magnetic field penetration and maintains magnetic functionality.
4Reliability
If ferromagnetic material layer thickness is increased, then magnetic properties are enhanced, but material mass and deposition cost increase
Solution Approach 1:
The patent replaces conventional thick ferromagnetic coatings with a thin layer (less than fibre diameter, preferably 0.1 to 10 microns) combined with a nucleation material layer. The nucleation material enables efficient ionic deposition that achieves sufficient magnetic properties with minimal ferromagnetic material thickness, reducing both mass and deposition cost.
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 enhances the magnetic properties of FRPCs, reduces material mass, and enables the creation of lightweight, strong composite structures suitable for various applications, including vehicle panels and electronic equipment, by integrating functionalized fibre layers and conductive fillers within a resin or ceramic binder.
Implementation Method 1
allowing for patterned deposition of ferromagnetic materials like iron, nickel, or cobalt, and using conductive nucleation materials like silver to facilitate ionic deposition without acid washing
Implementation Method 2
The layer of ferromagnetic material may be magnetised, or be caused to be temporarily magnetised by causing the material to be an electromagnetic, by subjecting said ferromagnetic material to an electrical field
Implementation Method 3
wherein said at least one ferromagnetic fibre ply comprises a fibre ply comprising at least one layer of a ferromagnetic material
Data Source
AI summary
The invention relates to ferromagnetic fibre composites, particularly ferromagnetic coated fibre plies in fibre reinforced polymer composites (FRPC), more preferably to a ferromagnetic FRPC, and composites with a plurality of functionalised fibre layers. The composite structure comprising at least one ferromagnetic fibre ply, wherein said ferromagnetic fibre ply is substantially encapsulated in a binder matrix to form a fibre reinforced polymer composite, wherein said at least one ferromagnetic fibre ply comprises a fibre ply and on at least one surface of said ply comprising at least one layer of a ferromagnetic material.