Articles tagged with Shape Memory Alloys
LIST's patented infrared welding process enables rapid assembly of thick carbon-fibre-reinforced thermoplastic components, reducing weight, costs and environmental impact. The innovation is estimated to reduce CO2 emissions by 12.5 tonnes per wing rib.
The study reveals that the alloy's initial state exhibits superior corrosion resistance due to dense and stable passivation films composed mainly of TiO₂ and NiO. However, post-fracture, the formation of fragmented amorphous phases and nanocrystalline grains accelerates corrosion processes.
Researchers at the University of Groningen developed an atomistic model that predicts the driving force for microstructural twinning in shape memory alloys. This discovery can lead to the creation of new crystalline materials with improved reversible deformations, vibration damping, and impact absorption.
Professor Paul Motzki is developing ultra-flat, compact, and lightweight cooling units using shape memory alloys and dielectric elastomer actuators. He aims to create climate-friendly and energy-efficient alternative to conventional systems.
Researchers developed a novel Cu-Al-Mn alloy with a special shape memory effect at temperatures as low as -200°C, surpassing previous limitations. The alloy's potential applications include high-performance actuators for cooling systems in space telescopes and advanced carbon-neutral initiatives.
Researchers at Pohang University of Science and Technology developed a novel dry adhesive technology using shape memory polymers, allowing for precise micro-LED chip transfer with minimal residue. The technology offers significant advantages over conventional methods, including high adhesion strength and easy release.
Researchers at Saarland University have developed smart implants that can monitor and promote healing in fractured bones. The miniaturized technology, part of the EU-funded SmILE project, enables the use of thin intramedullary nails to support bone stability during healing.
Developed using lightweight shape memory materials, the gripper systems function without additional sensors, reducing energy consumption and increasing flexibility. They can be controlled in real-time with short pulses of electric current, enabling safe human interaction and minimizing production costs.
Researchers at Johns Hopkins University Applied Physics Laboratory have created a shape-shifting antenna that can change its shape based on temperature, transforming communications capabilities. The technology has transformative potential in military, scientific and commercial applications, enabling dynamic RF band adaptability.
Researchers have developed functional interlocking metasurfaces that offer more structural strength and stability than traditional techniques like bolts and adhesives. These metasurfaces can selectively disengage and re-engage on demand while maintaining consistent joint strength.
Researchers at Texas A&M University are investigating the historical effects of strain on shape-memory alloys to improve predictive capabilities. They will use a synergistic experimental and numerical approach to understand and predict history effects in these alloys, with potential applications in heart stents and airplane wing flaps.
Scientists at Shandong University have created a novel approach to fabricate high-performance NiTiNb shape memory alloys using laser powder bed fusion. The in-situ alloying process yields good mechanical and functional properties, surpassing conventional casting methods. By integrating material synthesis and structure forming, research...
A research group from Tohoku University has made a breakthrough in developing a palladium-based metamagnetic shape memory alloy that exhibits low energy loss, even at low temperatures. The new alloy significantly reduces energy loss compared to existing materials, making it suitable for applications such as magnetic sensors and actuators.
Researchers at Huazhong University of Science and Technology have developed a systematic review of laser powder bed fusion (LPBF)-fabricated NiTi alloys. The study highlights the effect of process parameters on printability, mechanical properties, and functional behaviors of NiTi shape memory alloys. These findings provide evidence for...
Scientists at Tokyo University of Science created a fracture-resistant alloy through heat-treatment, exhibiting improved elastocaloric properties and resistance to cyclical loads. The Cu-Zn-Al alloy showed significant increases in grain size, leading to enhanced cooling capabilities and paving the way for innovative refrigeration systems.
Researchers from Texas A&M University developed a 3D-printed shape memory alloy with superior tensile superelasticity, nearly doubling the maximum reported in literature. The study used laser powder bed fusion to fabricate defect-free nickel-titanium parts with increased superelasticity.
Researchers at Texas A&M University used an Artificial Intelligence Materials Selection framework to discover a new shape memory alloy with the highest efficiency ever recorded. The alloy's narrow transformation temperature window and high cyclic stability make it ideal for thermal energy harvesting and storage.
Researchers at Texas A&M University have developed a shape-memory alloy filler that can be inserted into airplane wings to reduce noise during landing. The material can deploy itself into the perfect position, eliminating air circulation and jarring sounds.
Researchers created an alloy of titanium, tantalum and scandium that functions for a long time even at high temperatures. By adding a few percent of scandium, the alloy avoids the unwanted omega phase, which was previously a major limitation in high-temperature shape memory alloys.
Researchers found that rapidly cooled copper-based shape memory alloys performed better than slowly cooled samples due to the formation of nickel-rich dots. This discovery could lead to more energy-efficient HVAC and refrigeration systems using heat pumping technology.
Shape memory alloys are underutilized in commercial applications due to limited understanding of their internal microstructures. Researchers used novel 3D X-ray microscopy techniques to visualize these structures, revealing surprising results that shed light on decades-old areas of contention in SMA micromechanics. The study's findings...
Researchers from Empa and re-fer AG have developed a new building material called memory-steel, which uses shape-memory alloys to permanently prestress concrete structures. The material eliminates the need for hydraulic prestressing, reducing space requirements and making it suitable for confined spaces.
Scientists create six-step cycle that uses magnetic materials to cool down, reducing greenhouse impact of traditional refrigerants. The technology could be more efficient than vapor compression and has potential for widespread use.
Researchers at Texas A&M University have discovered new smart materials that can work at extremely high temperatures, enabling improved fuel burn efficiency in jet engines. These materials also have the potential to reduce airplane noise over residential areas, offering a promising new application in various industries.
Scientists at Max Planck Institute discovered robust Bain distortion in premartensite phase of Pt-substituted Ni2MnGa, which transforms to martensite with additional Bain distortion on further cooling. This phenomenon enhances applicability as magnetic actuators and refrigeration technology due to lower hysteresis.
The NSF grant aims to improve the properties of magnetic shape-memory alloys, enabling efficient and economical production of magnetic actuators used in various industries. The researchers will use binder jet printing to enhance the microstructure and properties of these alloys.
Researchers have created a new alloy that exhibits superelastic behavior at the nanoscale, requiring much higher stress to deform than larger materials. This discovery opens up new channels for developing flexible microsystems and electromechanical nanosystems, including implantable devices with potential applications in smart healthcare.
Researchers at Tohoku University discovered a new shape memory alloy with superelastic effect, raising potential for various industries. The alloy exhibits shape recovery upon heating, making it suitable for self-deployable space habitat frames and damping devices.
Researchers created a mathematical equation for an ideal dynamic climbing rope that would slow falling climbers like brakes on cars. The study suggests using shape memory materials, which can be deformed and return to their original shape, to achieve this effect.
A team of scientists at Berkeley Lab has developed a new material that exhibits the highest shape-memory effect ever recorded in an oxide material. This breakthrough discovery opens up exciting possibilities for future nanoelectromechanical devices and other state-of-the-art nanosystems.
Shape-memory alloys exhibit unique properties that make them suitable for earthquake-resistant construction and retrofit applications. A Georgia Tech model assesses the behavior of these alloys under loading conditions, predicting internal temperature and stress distributions.
Researchers at Northwestern University and Boise State University have developed a less expensive shape-shifting memory foam using a nickel-manganese-gallium alloy. The new material exhibits 'magnetic shape-memory' properties, allowing it to retain its new shape when exposed to a magnetic field.
Scientists at the University of the Basque Country have developed robots with improved precision control using shape-memory alloys. These materials enable precise positioning, making them suitable for applications such as machine tooling and large-dimension telescopes.
Researchers at UCSD create hybrid composite alloy material combining shape-memory nickel-titanium with super-elastic foams and glass beads for enhanced flexibility and resilience. The new material absorbs high-velocity impacts, potentially stopping cracks and collateral damage.