Composite Fire Seal Structure for High-Temperature Durability
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Solution Overview
Problem
Current fire-seal materials are expensive and lack long-term durability in harsh, high-temperature environments, necessitating the development of more effective and cost-efficient solutions.
Innovation Solution
The fire seal comprises a fire-resistant bulk material with a decomposition temperature of at least 400°C, combined with phase-changing materials having distinct phase transition temperatures, supported by the bulk material, to enhance heat absorption and material stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current fire-seal materials are used, then fire resistance is achieved, but cost is high and long-term durability in harsh environments is insufficient
Solution Approach 1:
The fire seal employs a composite structure consisting of a bulk material matrix embedded with dispersed phase-changing material particles. This composite architecture combines the fire resistance of the bulk material with the heat absorption capabilities of the phase-changing material, achieving enhanced durability in high-temperature environments while using cost-effective components rather than expensive proprietary materials
2Use of energy by moving object
If phase-changing material particles with average size less than 1μm are used, then heat absorption and dispersal efficiency is improved, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies a particle size parameter range (average less than 1μm) for the phase-changing material particles. This parameter optimization balances heat absorption efficiency—smaller particles provide larger surface area for phase change—with manufacturing feasibility. The sub-micron scale is sufficiently small to enhance thermal performance while remaining achievable through conventional particle production and dispersion techniques
3Reliability
If decomposition temperature of bulk material is increased to at least 400°C, then fire resistance is improved, but material selection and processing difficulty increase
Solution Approach 1:
The fire seal achieves fire resistance through localized material properties: the bulk material is selected specifically for its decomposition temperature of at least 400°C, while the phase-changing material particles provide complementary heat absorption. This local optimization of material properties at different scales (matrix vs. dispersed particles) achieves superior fire resistance without requiring all components to be complex high-performance materials
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 configuration effectively absorbs and disperses heat, maintaining material integrity and preventing burn-through, while also providing enhanced pressure retention and resistance to various fluids and thermal stresses.
Implementation Method 1
a phase-changing material (120) having a phase transition temperature (T T ) and that is supported by the bulk material (110)
Implementation Method 2
the phase-changing material (120) comprises particles having an average particle size of less than 1μm
Implementation Method 3
a bulk material that decomposes at a decomposition temperature (T D ); and wherein: the bulk material (110) is fire resistant
Data Source
Figure 1~2
Figure 3
Figure 4
AI summary
A fire seal includes a bulk material and a phase-changing material supported by the bulk material. The bulk material of the fire seal is fire resistant.