Porous Ceramic Thermal Insulation Member for Compressive Stability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional thermal insulation members with soft structures, such as fiber or foam, lack stability when sandwiched between objects and deform under compressive forces, leading to reduced thermal insulation performance.
Innovation Solution
A thermal insulation member with a porous ceramic structure featuring ZrO2 particles and additional materials like SiO2, TiO2, or La2O3 on their surfaces, forming a strong skeleton that maintains mechanical strength and thermal insulation effectiveness even under compressive forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If a soft structure such as fiber structure or foam structure is used for thermal insulation, then thermal insulation performance is improved, but mechanical strength and stability under compressive forces deteriorate
Solution Approach 1:
The patent uses a composite structure combining ZrO2 particles (providing mechanical strength) with porous material (providing thermal insulation). The ZrO2 particles form a skeleton that maintains structural integrity while the porous structure provides heat transfer suppression, resolving the contradiction between mechanical strength and thermal insulation performance
Solution Approach 2:
The patent employs a porous structure of ceramic material that provides thermal insulation through air trapping in pores while maintaining mechanical strength through the ceramic skeleton formed by ZrO2 particles. The porous structure suppresses heat transfer by conduction, convection, and radiation while the ZrO2 framework prevents collapse under compression
2Loss of energy
If a soft structure such as fiber structure or foam structure is used for thermal insulation, then thermal insulation performance is improved, but stability when sandwiched between objects deteriorates
Solution Approach 1:
The composite of ZrO2 particles and porous material creates a structure that is both thermally insulating and mechanically stable. The ZrO2 skeleton provides rigidity and stability when sandwiched between objects, while the porous structure maintains thermal insulation performance
Solution Approach 2:
The patent changes the physical parameters of the thermal insulation material by using ceramic particles with specific size ranges (0.1-10 μm) and controlling the porous structure characteristics. This creates a material with optimized balance between stability under compression and thermal insulation performance
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 thermal insulation member provides high mechanical strength and excellent thermal insulation performance while being sandwiched between objects, with compressive strength, Young's modulus, and thermal conductivity within specified ranges, ensuring effective heat transfer suppression.
Implementation Method 1
The thermal insulation member has a porous structure of ceramic having pores, and ZrO2 particles and different type material existing on surfaces of the ZrO2 particles form a skeleton of the porous structure
Data Source
AI summary
A thermal insulation member is directly or indirectly sandwiched between a first object and a second object and thereby suppresses or interrupts heat transfer between the first object and the second object. The thermal insulation member comprises: a first main surface opposed to the first object; and a second main surface positioned on the opposite side from the first main surface and opposed to the second object. The thermal insulation member has a porous structure of ceramic having pores. ZrO2 particles and different type material exist on surfaces of the ZrO2 particles form a skeleton of the porous structure. The different type material includes at least one selected out of SiO2, TiO2, La2O3, and Y2O3.