Superconducting Ceramic Composition for Ambient-Pressure Operation
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Solution Overview
Problem
Existing superconducting materials require high pressures, making them impractical for industrial applications, and there is a need for materials that exhibit superconductivity at room temperature and ambient pressure.
Innovation Solution
A superconducting ceramic represented by Formula A10-xBx(PO4)6O, where A is Ca, Ba, Sr, Sn, or Pb, and B is Cu, Cd, Zn, Mn, Fe, Ni, or Ag, with x ranging from 0.1 to 2.0, is produced through a solid-phase method involving the reaction of lanarkite with copper phosphide, forming superconducting quantum wells (SQWs) at specific intervals and allowing tunneling between them.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If high-pressure conditions are applied to achieve room-temperature superconductivity, then the critical temperature increases, but the pressure requirement becomes impractically high for industrial applications
Solution Approach 1:
The patent changes the chemical composition parameters of the superconducting material by incorporating specific elements (such as iron, nickel, or cobalt) into the crystal lattice structure. This compositional modification allows the material to achieve room-temperature superconductivity without requiring extreme pressure conditions, thus resolving the contradiction between achieving high critical temperature and maintaining practical operating pressure.
Solution Approach 2:
The patent employs composite material design by creating a multi-element ceramic system with specific stoichiometric ratios. The composite structure combines different metallic elements within a ceramic matrix, enabling the material to exhibit superconductivity at room temperature and ambient pressure through synergistic effects of the constituent elements, thereby eliminating the need for high-pressure conditions.
2Reliability
If conventional superconducting materials are used, then superconductivity can be achieved, but the material requires extremely high pressure making it impossible to apply to industrial fields
Solution Approach 1:
The patent modifies the chemical composition parameters by introducing specific dopant elements and adjusting stoichiometric ratios in the ceramic material. This parameter optimization enables the material to maintain reliable superconductivity at ambient pressure, dramatically improving ease of manufacture and industrial applicability without sacrificing superconducting properties.
Solution Approach 2:
The patent develops a superconducting material that can be manufactured using conventional ceramic processing techniques without requiring expensive high-pressure equipment. The material uses relatively abundant elements and standard sintering processes, making it economically viable for industrial applications while maintaining reliable superconductivity.
3Measurement precision
If the amount of superconductor in the material is increased, then electrical properties unique to superconductors become identifiable, but the material composition becomes more complex
Solution Approach 1:
The patent creates localized superconducting regions within the ceramic matrix by controlling the distribution and concentration of superconducting phases. These localized regions, while comprising a small fraction of the total material volume, are sufficient to produce measurable bulk superconducting properties such as zero resistance and magnetic flux pinning, thereby achieving detectable superconductivity without requiring complex overall composition.
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 ceramic material exhibits superconductivity at room temperature and ambient pressure, with increased strength and hardness, and demonstrates zero resistance and diamagnetism, suitable for industrial applications.
Implementation Method 1
the ceramic material exhibits superconductivity at room temperature and ambient pressure, with increased strength and hardness, and demonstrates zero resistance and diamagnetism
Implementation Method 2
forming superconducting quantum wells (SQWs) at specific intervals and allowing tunneling between them
Data Source
AI summary
Disclosed are a room-temperature and ambient-pressure superconducting ceramic and methods for producing the same. The superconducting ceramic is represented by Formula 1: A10-xBx(PO4)6O wherein A is Ca, Ba, Sr, Sn or Pb, B is Cu, Cd, Zn, Mn, Fe, Ni or Ag, and x is 0.1 to 2.0. The superconducting ceramic exhibits superconductivity at room temperature and ambient pressure. The methods are suitable for producing the superconducting ceramic.