Graded Multilayered Microsphere Composites for Hypersonic Thermal Protection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Traditional materials for extreme environment hypersonic airframe structures are expensive and require long fabrication cycles, making them unsuitable for affordable and robust airframe structures and thermal protection systems.

Innovation Solution

A graded multilayered composite system comprising a metal matrix material with microspheres on both sides, combined with graded or non-graded layers such as metallic or ceramic liners, cooling channels, and environmental barrier coatings, optimized for thermomechanical loading.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional materials are used for extreme environment hypersonic airframe structures, then durability and reliability are improved, but manufacturing cost increases and fabrication cycle time extends

Engineering Contradiction:

ImprovedurabilityVSAvoidfabrication cycle time

Core Design Contradiction:

ReliabilityVSProductivity

Solution Approach 1:

The airframe structure is divided into multiple layers with different material compositions and functions. Each layer is designed to address specific performance requirements (thermal protection, structural strength, weight reduction) independently, allowing parallel manufacturing processes and reducing overall fabrication time while maintaining reliability

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Traditional monolithic materials are replaced with composite material systems combining metal matrices, ceramics, and polymers in layered configurations. These composites provide enhanced durability and thermal resistance comparable to traditional materials but enable faster manufacturing through modular assembly and specialized processing techniques

Inventive Principle:

Principle #40Composite materials

2Reliability

If traditional materials are used for extreme environment hypersonic airframe structures, then reliability is improved, but manufacturing cost increases

Engineering Contradiction:

ImprovedurabilityVSAvoidmanufacturing cost

Core Design Contradiction:

ReliabilityVSEase of manufacture

Solution Approach 1:

Different regions of the airframe structure are assigned different material compositions and layer configurations tailored to local performance requirements. High-temperature zones receive enhanced thermal protection layers while structural zones prioritize strength, optimizing material usage and reducing overall manufacturing cost while maintaining reliability

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

Composite material systems provide the necessary durability and thermal resistance at lower costs compared to traditional monolithic materials. The layered composite structure allows for cost-effective manufacturing through standardized material stacks and efficient processing methods

Inventive Principle:

Principle #40Composite materials

3Strength

If multilayered composite structures are implemented, then strength-to-weight ratio is improved, but manufacturing complexity increases

Engineering Contradiction:

Improvestrength-to-weight ratioVSAvoidmanufacturing complexity

Core Design Contradiction:

StrengthVSDevice complexity

Solution Approach 1:

The multilayered structure is segmented into discrete layers that can be manufactured and prepared independently before assembly. This segmentation allows for specialized equipment to be used for each layer type and simplifies quality control, reducing overall manufacturing complexity while maintaining the high strength-to-weight ratio

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Composite material systems inherently provide high strength-to-weight ratios through their layered architecture. The manufacturing complexity is managed through established composite processing techniques and modular assembly procedures that streamline production

Inventive Principle:

Principle #40Composite materials

4Temperature

If graded multilayered composites are used, then thermal protection performance is improved, but manufacturing precision requirements increase

Engineering Contradiction:

Improvethermal protection performanceVSAvoidgradation control precision

Core Design Contradiction:

TemperatureVSManufacturing precision

Solution Approach 1:

The graded multilayered composite structure utilizes controlled changes in material composition, density, and thickness across different layers to optimize thermal protection performance. By systematically varying these parameters through standardized grading schemes, the patent achieves superior thermal management while managing manufacturing precision through repeatable processing protocols

Inventive Principle:

Principle #35Parameter changes

Data Source

PatentUS20250249505A1Tuned multilayered material systems and methods for manufacturing

Publication Date: 2025.08.07 THE BOEING CO

AI summary

A graded multilayered composite comprises a metal matrix material having a first side and a second side opposite the first side. A first layer of microspheres is dispersed on the first side of the metal matrix material. A second layer of microspheres is dispersed on the second side of the metal matrix material.