Skeletal Composite Material Internal Skeleton Structure
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Solution Overview
Problem
Conventional metal matrix composites (MMCs) are not well-suited for applications involving fracture mechanics, as they tend to fragment unpredictably and produce complex internal crack patterns difficult to predict using standard methods, and their uses are limited by their structural and material constraints.
Innovation Solution
The development of skeletal composite materials featuring an internal skeleton structure made of different materials than the matrix, which can be designed to fracture predictably, resist corrosion, or disintegrate at controlled rates, using a low temperature, high pressure process to maintain unique properties and prevent inter-component reactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional MMCs are used for fracture mechanics applications, then the material can be manufactured with standard processes, but the fragmentation is unpredictable and produces complex internal crack patterns
Solution Approach 1:
The invention divides the composite material into distinct functional segments: a skeleton structure made of one material and a matrix made of another material. This segmentation allows each component to have optimized properties - the skeleton provides predictable fracture paths while the matrix provides structural support, resolving the contradiction between predictable fragmentation and simple crack patterns
Solution Approach 2:
The invention uses a composite material system where a skeleton structure (made of material A) is embedded within a matrix (made of material B). This composite approach allows the skeleton to control fragmentation predictability while the matrix provides structural integrity, simultaneously improving reliability and reducing crack pattern complexity compared to conventional homogeneous MMCs
2Adaptability or versatility
If the skeleton structure and matrix are made of different materials, then the material properties can be optimized for specific applications, but inter-component reactions may occur
Solution Approach 1:
The invention introduces a coating layer as an intermediary between the skeleton structure and the matrix. This coating prevents direct chemical contact and reactions between the two different materials, allowing the skeleton and matrix to have optimized different properties while maintaining compositional stability. The coating acts as a barrier that enables material versatility without compromising chemical stability
3Stability of the object's composition
If low temperature processing is used, then inter-component reactions are prevented, but the manufacturing process requires high pressure
Solution Approach 1:
The invention changes the temperature parameter of the processing to be low, which prevents inter-component reactions between the skeleton and matrix materials. To compensate for the low temperature and still achieve proper consolidation and bonding, the process uses high pressure. This parameter change strategy resolves the contradiction by trading temperature for pressure, maintaining compositional stability while achieving manufacturability
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 skeletal composite materials enable controlled fragmentation, filtration, and selective corrosion applications, offering improved predictability and versatility beyond conventional MMCs, with the skeleton structure and matrix maintaining their distinct properties to achieve desired outcomes.
Implementation Method 1
The skeletal composite material is made using a low temperature, high pressure process to prevent the skeleton structure and the matrix from reacting with each other
Data Source
AI summary
A skeletal composite material includes an internal skeleton structure surrounded by a matrix material. The skeleton structure and the matrix are made of different materials having different properties. It should be appreciated that the skeleton structure and the matrix can be made of any suitable material including metal, ceramic, carbon, polymers, or combinations of these materials. Preferably, the skeleton structure and/or the matrix are made primarily of metal or ceramic. The skeletal composite material can be made by filling a skeleton structure with powder, compacting the skeleton structure and powder to form a preform, and consolidating the preform to form the skeletal composite material.