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Category: nuclear energy – Page 18

Discovery of extended slip bands reshapes understanding of material deformation under stress

University of California, Irvine scientists have expanded on a longstanding model governing the mechanics behind slip banding, a process that produces strain marks in metals under compression, gaining a new understanding of the behavior of advanced materials critical to energy systems, space exploration and nuclear applications.

In a paper published recently in Nature Communications, researchers in UC Irvine’s Samueli School of Engineering report the discovery of extended slip bands—a finding that challenges the classic model developed in the 1950s by physicists Charles Frank and Thornton Read.

While the Frank–Read theory attributes slip band formation to continuous dislocation multiplication at active sources, the UC Irvine team found that extended slip bands emerge from source deactivation followed by the dynamic activation of new dislocation sources.

Shortcut in ‘magnetic bottles’ design offers an answer to a complex 70-year-old fusion challenge

Abundant, low-cost, clean energy—the envisioned result if scientists and engineers can successfully produce a reliable method of generating and sustaining fusion energy—has taken one step closer to reality, as a team of researchers from the University of Texas at Austin, Los Alamos National Laboratory and Type One Energy Group has solved a longstanding problem in the field.

One of the big challenges holding back has been the ability to contain inside fusion reactors. When high-energy alpha particles leak from a reactor, that prevents the plasma from getting hot and dense enough to sustain the fusion reaction. To prevent them from leaking, engineers design elaborate magnetic confinement systems, but there are often holes in the , and a tremendous amount of computational time is required to predict their locations and eliminate them.

In their paper published in Physical Review Letters, the research team describes having discovered a shortcut that can help engineers design leak-proof magnetic confinement systems 10 times as fast as the gold standard method, without sacrificing accuracy. While several other big challenges remain for all magnetic fusion designs, this advance addresses the biggest challenge that’s specific to a type of fusion reactor first proposed in the 1950s, called a stellarator.

“Unbreakable Armor for Tomorrow’s Nuclear Powerhouses” as Next-Gen Reactors Boast Cutting-Edge Shielding Design to Revolutionize Safety Standards

IN A NUTSHELL 🔬 Scientists at the University of South China have developed innovative algorithms to optimize radiation shielding for next-generation nuclear reactors. 💡 The newly created algorithms, RP-NSGA and RP-MOABC, significantly improve performance by integrating a reference-point-selection strategy with established optimization techniques. 📈 Experiments demonstrated that these algorithms achieve substantial reductions in volume and.

China Lights Up the Sky with a Secret Weapon Test

China conducted a secret weapon test that has caught the US intelligence community off guard. Back in August, China lit up the sky when it tested a nuclear-capable hypersonic missile, which travels faster than the speed of sound. The global shipping supply crisis might affect Christmas, thanks in part to China’s power shortage. And a man in Jiangsu Province takes drastic measures after his daughter fails to solve a math problem correctly. Watch this episode of China Uncensored for that and more of this week’s China news headlines.

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Fusion Breakthrough: Magnet Powerful Enough to Levitate an Aircraft Carrier Marks Final Step Before ITER Reactor Assembly

In a critical fusion breakthrough, scientists from the international ITER nuclear fusion energy project have announced the completion of the sixth and final component of the reactor’s central solenoid, a magnet powerful enough to levitate an aircraft carrier.

Described as a “landmark achievement” by the 30-country ITER collaboration, the pulsed superconducting electromagnet and other completed components will be assembled at the group’s designated site in southern France.

“By integrating all the systems needed for fusion at industrial scale, ITER is serving as a massive, complex research laboratory for its 30-plus member countries, providing the knowledge and data needed to optimize commercial fusion power,” the group explained in a statement announcing the achievement.

ITER completes world’s largest and most powerful pulsed magnet system

In a landmark achievement for fusion energy, ITER has completed all components for the world’s largest, most powerful pulsed superconducting electromagnet system.

ITER is an international collaboration of more than 30 countries to demonstrate the viability of fusion—the power of the sun and stars—as an abundant, safe, carbon-free energy source for the planet.

The final component was the sixth module of the Central Solenoid, built and tested in the United States. When it is assembled at the ITER site in Southern France, the Central Solenoid will be the system’s most powerful magnet, strong enough to lift an aircraft carrier.

Rapid lithium extraction eliminates use of acid and high heat, scientists report

Lightweight lithium metal is a heavy-hitting critical mineral, serving as the key ingredient in the rechargeable batteries that power phones, laptops, electric vehicles and more. As ubiquitous as lithium is in modern technology, extracting the metal is complex and expensive. A new method, developed by researchers at Penn State and recently granted patent rights, enables high-efficiency lithium extraction—in minutes, not hours—using low temperatures and simple water-based leaching.

“Lithium powers the technologies that define our modern lives—from smartphones to electric vehicles—and has applications in grid energy storage, ceramics, glass, lubricants, and even medical and nuclear technologies,” said Mohammad Rezaee, the Centennial Career Development Professor in Mining Engineering at Penn State, who led the team that published their approach in Chemical Engineering Journal.

“But its extraction must also be environmentally responsible. Our research shows that we can extract lithium, and other , more efficiently while drastically reducing energy use, greenhouse gas emissions and waste that’s difficult to manage or dispose of.”

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