Independent board with range of expertise.
Building the sustainable energy storage supply chain.
Partners, consultants memberships
Proven record of operational experience.
Vanadium mining & energy expertise.
Principles of honesty, integrity and ethics.
Disruptive Technology for Energy Storage to Steel Production
Progress of global deployment targeting cashflow and commercialization (Optioning, Licensing, Royalties and more)
Vanadium, Iron and Titanium recovered from Multiple Sources Efficiently and Sustainably
Development VTM Resource with 22.5km Geophysical Footprint
Former Crown Asset With Over 60yrs of Development next to Blackrock Metals Proposed VTM Mine and Concentrator
Copper Gold Exploration Projects and Royalties Available For Option or Sale
The Future of Sustainable Energy
Reusable and Lowest Cost Battery Electrolyte without Carbon
Current Demand and Price for Vanadium
Our latest press releases
Latest Vanadium Industry Developments
Sustainable Energy, Development, and Innovation
Conventional & Emerging Applications
VRB Stock Fundamentals
General Investment Information
Frequently asked Questions and Terminology
Extensive Compendium of most Relevant Research
Corporate Presentations & Global Directory
Materials science specialists from the National University of Science and Technology MISIS (NUST MISIS), have developed a unique three-layer steel-vanadium-steel material that can withstand temperatures of up to 700 degrees Celsius for prolonged periods, as well as high radiation levels, mechanical stress and aggressive chemicals.
That material can be used inside the enclosures of nuclear reactor rods, according to the university’s press service.
These rods are among the key functional units of any nuclear reactor, coming into direct contact with uranium fuel and controlling the nuclear reaction’s intensity. The main problem of the new-generation fast reactor that can reuse spent uranium fuel is the substantial loads placed on these rods.Maximum working temperatures of fuel assemblies’ enclosures reach 550-700 degrees Celsius inside the new-generation reactors. And sodium, a liquid-metal heat carrier, impacts their external surfaces. Therefore, the enclosures of current reactor rods are unable to withstand such huge loads.
New structural materials are needed to conduct aclosed-loop fuel cycle inside fast reactors.These materials should make the fuel burn much faster than it does currently. They should withstand damaging radiation levels of up to 180-200 dislocations per atom, as compared to 100-130 dislocations per atom for current materials.
The enclosures of steel rods are simply unable to function in such conditions. Materials science specialists have long been expected to develop a material capable of withstanding the simultaneous impact of several super-aggressive external factors.
“Our team has developed the sandwich-type three-layer steel-vanadium alloy-steel material whose ferritic stainless steel ensures substantial corrosion resistance. And the material’s vanadium alloy (V-4Ti-4Cr) guarantees heat and radiation resistance, so as to offset the impact of a nuclear reactor’s super-aggressive environment,” said project co-author and postgraduate student Alexandra Baranova from NUST MISIS’ Faculty of Materials Science and Physics of High-Strength Materials.
According to Baranova, the creation of this composite material is a formidable challenge because both materials must be as monolithic as possible at various seams and joints.
“It became possible to solve this problem by using a complicated deformation-thermal method for treating the three-layer blanks that includes hot co-extrusion, radial forging and joint rolling. This creates a ‘transitional zone’ on the boundary between the component materials. Therefore the materials diffuse into each other, and this guarantees their highly durable seams and joints,” Baranova noted.
This production process allowed steel and the vanadium alloy to penetrate each other, scientists said. Members of the research team managed to develop a prototype rod enclosure which is, in fact, a monolithic three-layer tube.
Laboratory tests proved the new alloy’s high durability at working temperatures of up to 700 degrees Celsius. Developers are set to launch a long-term project for assessing the new material’s radiation-resistance levels soon.
The information contained in this article and provided by VanadiumCorp is sourced from third-party content in the public domain and is for general information purposes only, with no representation, guarantees of completeness, warranty of any kind, express or implied regarding the accuracy, adequacy, validity, availability, completeness, usefulness or timeliness of any information contained within. Please also excuse any syntax as authors and reposted articles are sourced from global origins. UNDER NO CIRCUMSTANCE SHALL WE HAVE LIABILITY TO YOU FOR ANY LOSS OR DAMAGE OF ANY KIND INCURRED AS A RESULT OF THE USE OF THIS REPOSTED ARTICLE. THE USE OF THIS ARTICLE AND YOUR RELIANCE ON ANY INFORMATION CONTAINED HEREIN IS SOLELY AT YOUR OWN RISK. VANADIUMCORP ALSO ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR OMISSIONS IN THE CONTENT OF THIS ARTICLE.
Continue reading the full story here >>