Structured Carrier Boundary for Composite Material Bonding
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Solution Overview
Problem
Conventional methods for producing functional composite materials result in insufficient mechanical connection and thermal contact between the carrier material and the functional coating, leading to strength issues and restricted heat transport, particularly during temperature changes and in applications like calcinations and adsorbent activations.
Innovation Solution
A method involving a structured boundary layer with a crosslinking depth, where the carrier material is interlocked with the functional surface material, forming a series of interstitial features with specific height and width ratios to enhance mechanical strength and thermal contact, using techniques like consumptive crystallization and controlled zeolite growth to create a mountain and valley structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional coating methods are used to apply functional material to carrier material, then the coating process is simple, but the mechanical connection and thermal contact between carrier and coating are insufficient
Solution Approach 1:
The invention applies surface structuring to the carrier that creates curved, three-dimensional features (protrusions and recesses) rather than flat surfaces. This curvature and geometric complexity increase the mechanical interlocking capability between carrier and coating, resolving the contradiction between simple coating processes and strong mechanical connections.
Solution Approach 2:
The invention transitions from two-dimensional flat surface contact to three-dimensional structured surface contact by creating protrusions and recesses with specific depths and geometries. This dimensional enhancement increases the effective contact area and mechanical interlocking without complicating the coating application process itself.
2Ease of manufacture
If conventional coating methods are used to apply functional material to carrier material, then the coating process is simple, but the thermal contact between carrier and coating is insufficient
Solution Approach 1:
The curved surface features created by the structuring process increase the thermal contact area between carrier and coating, improving heat transfer efficiency while maintaining process simplicity. The geometric complexity enhances thermal coupling without requiring complex coating procedures.
Solution Approach 2:
By moving from 2D to 3D surface contact through protrusion and recess formation, the invention increases the thermal interface area and reduces thermal transition resistance, improving energy efficiency without complicating the manufacturing process.
3Strength
If in situ crystallization or consuming crystallization is used to achieve firm contact, then mechanical properties and thermal coupling improve, but strength problems occur during rapid temperature changes
Solution Approach 1:
The invention creates localized stress distribution through the structured surface features, where protrusions and recesses distribute thermal and mechanical stresses more evenly throughout the interface. This local quality variation prevents concentrated stress points that cause detachment during thermal cycling.
Solution Approach 2:
The curved geometric features of the structured surface accommodate thermal expansion and contraction more effectively than flat surfaces, reducing stress concentrations and improving reliability during rapid temperature changes while maintaining strong mechanical bonds.
4Quantity of substance
If coating thickness is increased to provide better protection, then functional performance improves, but heat transport in the composite is severely restricted
Solution Approach 1:
The invention uses 3D surface structuring to increase the effective coating thickness and functional material quantity while maintaining improved heat transport pathways through the structured interface, partially mitigating the heat transport restriction that would normally occur with thicker coatings.
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 structured material boundary significantly improves mechanical strength and thermal contact, allowing for thicker functional layers with optimal heat transport and reduced risk of coating detachment under thermal and mechanical loads, particularly beneficial in catalysis and adsorption processes.
Implementation Method 1
When zeolites are used according to the invention, recourse is had to consumptive crystallization and controlled carrier dissolution with controlled zeolite growth takes place.
Implementation Method 2
controlled carrier dissolution with controlled zeolite growth takes place
Implementation Method 3
This minimizes the thermal transition resistance between the carrier and the surface material
Data Source
Figure 1
Figure 1a
Figure 2
AI summary
The invention relates to a functional composite material comprising a carrier (1) and a functional surface material (2). The composite material is characterized in that the carrier has a structured boundary layer (3) with a lower boundary (4) and an upper boundary (5) having a crosslinking depth (d) between the lower and upper boundaries and a material boundary (6) alternating between the lower and upper boundaries on the surface facing the functional surface material, wherein the material boundary (6) is formed as a continuous sequence of surface features (7) of the carrier with spaces (8), each feature having a height (h) equal to the crosslinking depth, and at least one feature and at least one space (8) are located within a horizontal width (b) of the boundary layer corresponding to a multiple of the crosslinking depth.