Smart Susceptor Cladding for Thermal Runaway
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Smart susceptors with complex geometries often experience thermal runaway and overheating due to preferred current paths, leading to uneven heating and temperature variations during manufacturing processes.
Innovation Solution
A smart susceptor assembly with a cladding made of electrically conductive materials such as copper, silver, or gold is applied to the susceptor, which alters the electrical and thermal performance by providing a passive heat exchanger and adjusting the leveling temperature, preventing overheating and ensuring more uniform heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a smart susceptor with complex geometry is used for heating materials, then the heating capability is improved, but thermal runaway and overheating occur due to preferred current paths
Solution Approach 1:
The patent applies cladding selectively to specific regions of the smart susceptor where preferred current paths cause localized overheating. This local modification alters the electrical and thermal properties only in those critical areas, redistributing current density and preventing thermal runaway while preserving the overall heating capability of the complex geometry susceptor.
Solution Approach 2:
The cladding acts as an intermediary layer between the electromagnetic field and the smart susceptor material. It modifies the interaction by providing an alternative current path with different electrical resistance characteristics, thereby mediating the energy transfer and preventing direct overheating of the susceptor in critical regions.
2Power
If the susceptor operates at high temperature for efficient heating, then heating efficiency is improved, but uneven heating and temperature variations occur
Solution Approach 1:
The cladding creates a self-regulating system where temperature variations automatically adjust current distribution. As certain regions reach higher temperatures, the cladding's electrical resistance increases in those areas, naturally redirecting current to cooler regions and promoting more uniform heating without external control mechanisms.
Solution Approach 2:
The patent utilizes changes in electrical resistance parameters of the cladding material with temperature to achieve uniform heating. The resistance of the cladding increases with temperature, which automatically modulates current density distribution across the susceptor surface, preventing localized overheating while maintaining overall heating efficiency.
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 cladding reduces temperature variations across the susceptor surface, allowing for precise thermal control and maintaining the susceptor at its designed leveling temperature, thereby preventing thermal runaway and ensuring consistent heating of materials.
Implementation Method 1
a cladding disposed on at least a portion of the smart susceptor, wherein the cladding includes an electrically conductive material
Implementation Method 2
providing a passive heat exchanger and adjusting the leveling temperature
Implementation Method 3
the susceptor begins to inductively heat due to the initially small skin depth and high magnetic permeability
Implementation Method 4
When placed into the electromagnetic flux field generated, for example, by an induction coil that is part of the smart susceptor assembly, the susceptor begins to inductively heat
Implementation Method 5
a cross sectional region through which electrons flow through the susceptor (i.e., the skin depth) is small. Thus, at these relatively low temperatures, an electrical resistance of the susceptor is high
Data Source
AI summary
A smart susceptor assembly, including a smart susceptor, and a cladding disposed on at least a portion of the smart susceptor, wherein the cladding includes an electrically conductive material.