Hollow Ceramic Sphere Composite With 3D-Printed Gradient Layers
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Solution Overview
Problem
Current materials lack effective methods to enhance the mechanical, thermal, and dielectric properties of organic and metal composites while maintaining low density and impact resistance, particularly in the context of hollow ceramic spheres used in petroleum and natural gas exploitation and 3D printing applications.
Innovation Solution
A 3D printing method and preparation process incorporating hollow ceramic spheres into high polymer and metal materials, involving layer-by-layer printing and mixing with curing agents and plasticizers to form impact-resistant gradient complex parts and dielectric materials, optimizing the composition and structural parameters for improved mechanical, thermal, and dielectric properties.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If hollow ceramic spheres are added into organic dielectric material or metal material, then mechanical strength and impact resistance are improved, but density increases
Solution Approach 1:
The patent uses composite materials by combining hollow ceramic spheres with metal or high polymer powders in specific proportions (30-70 wt% ceramic spheres). This creates a composite structure that leverages the high strength of ceramic spheres while maintaining the lightweight characteristics of the matrix material, achieving improved mechanical strength without excessive density increase.
Solution Approach 2:
The patent applies local quality through gradient layered structures where different layers have different compositions and properties. The surface layer contains high-hardness metal material, the middle layer contains the hollow ceramic sphere composite, and the bottom layer contains high polymer soft material. This localized differentiation allows each layer to optimize for its specific function while the overall structure maintains low density and high strength.
2Temperature
If hollow ceramic spheres are added into organic dielectric material, then heat conductivity coefficient and dielectric properties are improved, but manufacturing complexity increases
Solution Approach 1:
The patent changes physical and chemical parameters by controlling the size distribution (10-500 μm), wall thickness ratio (1/3 to 2/3), and composition proportions of hollow ceramic spheres in the composite. These parameter optimizations ensure good flowability and packing density during 3D printing, improving heat conductivity and dielectric properties while maintaining manufacturing feasibility through standardized parameter ranges.
3Strength
If gradient layered structure is formed by combining hollow ceramic spheres with other materials, then impact resistance is improved, but processing difficulty increases
Solution Approach 1:
The patent segments the protective material into distinct gradient layers with different functions: a surface layer of high-hardness metal material for wear resistance, a middle layer of hollow ceramic sphere composite for impact absorption, and a bottom layer of high polymer soft material for energy dissipation. This segmentation allows each layer to be optimized independently while simplifying the overall processing through standardized layer-by-layer 3D printing fabrication.
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 resulting composite materials exhibit enhanced mechanical strength, impact resistance, and dielectric properties with controlled layer thickness and composition, achieving a balance of low density and high strength, suitable for various structural applications.
Implementation Method 1
melting and curing the powder by using a heat source to form a metal layer or a high polymer layer
Implementation Method 2
curing the raw material by using a heat source to form a high polymer layer containing the hollow ceramic spheres
Data Source
AI summary
A composite containing hollow ceramic spheres and a preparation method are provided. The composite includes an impact-resistant gradient complex part containing a hollow ceramic sphere complex, prepared by using a 3D printing method and a hollow ceramic sphere-high polymer complex dielectric material obtained in a blending and fusing way. The obtained composite has the characteristics of relatively low density and high strength. The impact-resistant gradient complex part is a layered complex, the composition and properties of the complex may be regulated in a direction vertical to a layer according to a design, for example, mechanical properties of the complex are transitioned from soft to hard to form gradient change by regulating the change of the composition, and meanwhile, the thickness among layers with different properties is accurately controlled as required. The dielectric, heat conducting and mechanical properties of the hollow ceramic sphere-high polymer complex dielectric material are greatly improved.