Microwave Heating for Multi-Component Material Synthesis

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Solution Overview

Problem

Traditional material preparation methods are inefficient and costly due to their reliance on single-component ratios, slow external heating, limited temperature control, high raw material consumption, and inability to simultaneously treat materials at multiple temperatures, hindering the development of new materials.

Innovation Solution

A high-throughput micro-synthesis method using microwave energy to create temperature gradient fields for simultaneous sintering, melting, and heat treatment of multi-component materials, allowing for the rapid synthesis and processing of multiple samples with different component combinations and temperature conditions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If traditional external heating method is used, then materials can be heated uniformly, but heating time is long and heating efficiency is low

Engineering Contradiction:
Improveheating efficiencyVSAvoidheating time
Core Design Contradiction:
TemperatureVSLoss of time

Solution Approach 1:

The patent replaces traditional external thermal radiation heating with microwave electromagnetic field heating. The microwave heating device generates electromagnetic waves that directly interact with the material, converting electromagnetic energy to thermal energy internally, thereby eliminating the slow external-to-internal heat conduction process and achieving rapid, efficient heating.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent employs periodic microwave heating cycles with multiple stages: initial heating phase, intermediate holding phase, and final heating phase. This periodic action allows the material to reach target temperature efficiently while maintaining uniform temperature distribution through controlled heating intervals.

Inventive Principle:
Principle #19Periodic action

2Productivity

If only one component ratio is prepared each time, then preparation process is simple, but R&D efficiency is low and cost is high

Engineering Contradiction:
ImproveR&D efficiencyVSAvoidpreparation process complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the material preparation process into multiple independent sample units, each with different component ratios, that can be prepared simultaneously in one experimental run. This segmentation allows parallel processing of multiple compositions without increasing individual sample complexity, thereby大幅提高 R&D efficiency.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a universal preparation system that can handle multiple component ratios using the same experimental setup and process parameters. The microwave heating device and preparation methodology serve multiple functions by accommodating various material compositions simultaneously, eliminating the need for separate preparation processes for each ratio.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Productivity

If only one temperature is selected during preparation, then temperature control is simple, but efficiency of selecting optimal preparation conditions is greatly reduced

Engineering Contradiction:
Improvescreening efficiencyVSAvoidtemperature control complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent segments the temperature control system into multiple independent heating zones, each capable of operating at different temperatures simultaneously. This allows the preparation process to explore multiple temperature conditions in parallel, efficiently screening optimal preparation temperatures without requiring complex sequential testing.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements variable temperature control by adjusting microwave power levels and heating durations for different sample positions. This parameter change capability enables simultaneous experimentation across a range of temperatures, accelerating the identification of optimal preparation conditions while maintaining manageable system complexity.

Inventive Principle:
Principle #35Parameter changes

4Manufacturing precision

If discrete sample preparation method is used, then each sample can be optimized individually, but time consumption and R&D cost are high

Engineering Contradiction:
Improvesample optimization precisionVSAvoidtime consumption
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent merges multiple discrete sample preparations into a single integrated experimental process. Multiple samples with different compositions are prepared and heated simultaneously in one microwave heating cycle, maintaining individual sample optimization capability while reducing total time consumption and resource usage through combined processing.

Inventive Principle:
Principle #5Merging (Combining)

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 method significantly enhances the efficiency of screening optimal component combinations and heat treatment conditions, reduces raw material consumption, and lowers production costs by enabling the simultaneous heating and treatment of multiple samples at various temperatures, thereby accelerating the material development process.

Implementation Method 1

Microwave belongs to electromagnetic wave, and when it is interacted with objects, it can accelerate the movement of the microscopic particles in the object, and convert the electromagnetic energy of the microwave into heat energy, thereby realizing the heating of objects

Methodology Applied
Scientific EffectMicrowave heating: Dielectric Heating

Implementation Method 2

under the same temperature field or different temperature gradient fields, small-sized block combinatorial material samples with multiple components can be rapidly synthesized in one time

Methodology Applied
Scientific EffectTemperature gradient field: Temperature Gradient

Data Source

PatentUS10562098B2High throughput micro-synthesis method of multi-component materials
Publication Date: 2020.02.18 CHINA IRON & STEEL RESEARCH INSTITUTE GROUP CO LTD
  • US10562098B2 patent drawing
  • US10562098B2 patent drawing
  • US10562098B2 patent drawing

AI summary

The present invention belongs to the technical field of high throughput preparation and hot working of materials, and in particular to a high throughput micro-synthesis method of multi-component materials based on the temperature gradient field controlled by microwave energy. This invention, characterized by flexible material selection, quick temperature rising and high-efficient heating, uses microwave heating both to achieve quick preparation of small block combinatorial materials under the same temperature field in one time and to realize micro-synthesis under the different temperature gradient fields in one time including high-throughput sintering-melting and heat treatment of materials. This invention successfully overcomes drawbacks of current material preparation, such as unitary combination of components, low-efficient external heating, unique control temperature, huge material consumption and high cost during material preparation and heat treatment.