Composite Superconducting Materials Above 77K
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Solution Overview
Problem
Current superconducting materials require cooling below liquid nitrogen temperature (77K) to achieve a superconducting state, limiting their practical applications and ease of implementation due to the need for complex cooling methods.
Innovation Solution
Composite superconducting materials are created by combining electrically conductive and ferroelectric materials through methods like powder mixing, sputtering, or atomic layer deposition, allowing for coupled charge carriers to be confined and achieving a superconducting state above 77K by leveraging the electrical polarizability of ferroelectric materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional superconducting materials are used, then superconductivity is achieved below 77K, but complex cooling methods are required
Solution Approach 1:
The patent applies composite materials by combining ferroelectric materials with electrically conductive materials to create a composite structure that exhibits superconductivity at temperatures above 77K. The ferroelectric component provides electrical polarizability that enhances the superconducting properties of the conductive material, allowing operation at higher temperatures without requiring complex cooling systems.
Solution Approach 2:
The patent changes the physical parameters of the superconducting system by introducing ferroelectric materials with specific electrical polarizability characteristics. This parameter change enables the superconducting transition temperature to rise above 77K, fundamentally altering the operational temperature regime and simplifying cooling requirements.
2Reliability
If conventional superconducting materials are used, then superconductivity is achieved, but liquid based cooling is required which complicates implementation and maintenance
Solution Approach 1:
By changing the material composition to include ferroelectric components, the patent raises the superconducting transition temperature above 77K. This parameter change allows the system to operate with simpler cooling methods such as thermoelectric cooling instead of liquid nitrogen, greatly improving ease of operation and maintenance while maintaining superconducting state stability.
Solution Approach 2:
The patent enables replacement of mechanical liquid-based cooling systems with solid-state thermoelectric cooling methods. The elevated transition temperature allows thermoelectric coolers to maintain the superconducting state without requiring liquid nitrogen tanks, pumps, and associated mechanical infrastructure, thereby simplifying device implementation and maintenance.
3Ease of operation
If superconducting materials with Tc above 77K are used, then liquid nitrogen cooling can be replaced with thermoelectric cooling, but new material compositions are required
Solution Approach 1:
The patent employs composite materials combining ferroelectric and electrically conductive components to achieve Tc above 77K. While this requires new material compositions, the use of composite structures allows leveraging existing materials with known properties, potentially simplifying the manufacturing process compared to developing entirely new single-phase superconductors.
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
These composites can exhibit superconductivity above 77K, simplifying device implementation and maintenance, and enable the use of liquid nitrogen or thermoelectric cooling, enhancing their applicability in quantum sensing and computing.
Implementation Method 1
Superconductivity is a naturally occurring phenomenon manifested by near zero electrical resistance and the occurrence of spontaneous diamagnetism below a critical transition temperature, Tc
Implementation Method 2
a first electrically polarizable ferroelectric material having an electrical polarization
Data Source
AI summary
Superconductors and processes that form superconductors as composites of electrically polarizable ferroelectric materials and electrically conductive materials. The materials are chosen such that the binding energy of charge carriers within the materials exceeds the repulsive energy of the carriers and the energy carried by thermal vibrations (phonons) within the materials.