Technological requirements for thermonuclear reactors are immense. There is an urgent need for new production methods that will enable cost-effective manufacturing of large components for these reactors. American scientists from the University of Wisconsin-Madison have developed a tantalum coating using cold spray technology that provides excellent protection for the walls of a thermonuclear reactor under challenging conditions.
Researchers conducted tests on the tantalum coating, which met all expectations. It was found that this material effectively captures hydrogen molecules, which is beneficial for compact thermonuclear devices. Upon impact, tantalum molecules flatten out and cover the entire surface, creating a microstructure that facilitates the capture of hydrogen particles.
The research work was published in the journal “Physica Scripta”. Professor Kumar Sridharan, known for introducing cold spray technology for fusion reactor applications, also participated in the study.
Thermonuclear reactors utilize the process of nuclear fusion, which involves the fusion of light atomic elements into heavier ones. The energy generated from this reaction can be converted into clean electrical energy. However, during the fusion process, some hydrogen ions can escape from the plasma, leading to power losses. The tantalum coating significantly improves this situation by effectively capturing hydrogen particles colliding with the walls.
The new technology of cold sprayed coating also offers other advantages. The ability to repair reactor components on-site by applying a new coating eliminates the need to remove and replace damaged parts. Professor Oliver Schmitz emphasizes that the prospect of changing the alloy and incorporating other refractory metals to enhance the composite for nuclear applications is very exciting.
FAQ
What is a thermonuclear reactor?
A thermonuclear reactor is a device that utilizes the process of nuclear fusion, which involves the fusion of light atomic elements into heavier ones. The thermonuclear reaction generates massive amounts of heat energy, which can be converted into electrical energy.
How does cold spray coating technology work?
Cold spray coating technology involves propelling coating particles onto a surface at supersonic speeds. Upon impact, the particles flatten out, covering the entire surface. This process creates a microstructure that facilitates the capture of hydrogen particles.
Sources:
– University of Wisconsin-Madison, https://www.wisc.edu
– Journal “Physica Scripta”, https://www.iop.org
The source of the article is from the blog aovotice.cz