Nanoparticle Dislocation Site Density via Hydrogen Cycling
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Solution Overview
Problem
Standard nanoparticle production techniques result in a relatively low dislocation site density, hindering the creation of commercially viable products with desirable properties related to dislocation site density in materials.
Innovation Solution
A unique dislocation site density technique involving cyclic loading and deloading of hydrogen in multilayer thin film structures and the use of nanoscale materials to create stress-created dislocation defects and void sites, allowing for high-density hydrogen cluster formation in packed beds of nanoparticles and at interfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If standard nanoparticle production techniques are used, then manufacturing simplicity is maintained, but dislocation site density is insufficient
Solution Approach 1:
The patent applies preliminary action by introducing void-inducing materials during the nanoparticle fabrication process itself, rather than attempting to create dislocation sites afterward. The void-inducing material is incorporated into the nanoparticle structure during manufacturing, and upon removal or transformation, it creates the desired dislocation sites and voids in advance, before the nanoparticle is used in its final application.
Solution Approach 2:
The patent uses void-inducing materials as intermediaries to achieve the desired dislocation site density. These materials serve as temporary mediators that facilitate the creation of dislocation sites during fabrication, and are subsequently removed or transformed, leaving behind the intended structural features without requiring direct manipulation of the nanoparticle lattice.
2Reliability
If dislocation site density is increased through advanced techniques, then material properties are enhanced, but manufacturing complexity increases
Solution Approach 1:
The patent applies parameter changes by modifying the fabrication process parameters to include controlled introduction of void-inducing materials at specific concentrations and distributions. By changing the parameters of the manufacturing process (composition, temperature, pressure conditions during fabrication), the patent achieves enhanced dislocation site density while managing production complexity through systematic parameter optimization.
3Quantity of substance
If void sites are created in nanoparticle structures, then hydrogen cluster formation is enhanced, but structural integrity may be compromised
Solution Approach 1:
The patent applies local quality by creating void sites and dislocation regions at specific local positions within the nanoparticle structure, rather than uniformly throughout. The void-inducing materials are strategically placed or distributed to create localized regions of high dislocation density and void formation, while maintaining the overall structural integrity of the nanoparticle. This localized approach allows enhanced hydrogen cluster formation in specific regions without compromising the global structural strength.
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 approach enables the formation of high-density hydrogen clusters, enhancing the properties of materials for applications in superconductors, charged particle sources, and power systems by increasing dislocation site density and corresponding cluster formation.
Implementation Method 1
stress-created dislocation defects and void sites, allowing for high-density hydrogen cluster formation
Implementation Method 2
packed beds of nanoparticles and at interfaces
Data Source
AI summary
A method includes operating a gas loading system with a source of one or more isotopes of hydrogen, a gas loading chamber containing a number of metallic nanoparticles, the metallic nanoparticles being selected to provide for a predetermined hydrogen cluster formation density, a vacuum system, and a valve system in communication with the gas loading chamber, the source of one or more isotopes of hydrogen and the vacuum system; providing the gas loading chamber with a first quantity of the one or more isotopes of hydrogen from the source of one or more isotopes of hydrogen; monitoring an operating temperature; and cycling a loading pressure of the gas loading chamber using the source of one or more isotopes of hydrogen in response to providing the gas loading chamber and monitoring the operating temperature.