The new composite material combines strong electromagnetic shielding, high absorption, improved toughness, and electrothermal performance through a carefully engineered layer-by-layer structure. Its fracture toughness reached 2.68 MJ m⁻³, representing a 173% improvement compared to conventional materials.
Researchers develop new concept to accurately model wind turbine loads, focusing on local gusts' impact on material fatigue. This enhances turbine design and efficiency by reducing uncertainties in load estimations.
Researchers from Osaka University have developed tough biodegradable plastics with movable cyclodextrin crosslinks, which improve both durability and degradation capabilities. The new polymers can be broken down by enzymes into useful precursor molecules, reducing waste generation.
Researchers at the University of California, San Diego have discovered a way to make ceramics tougher and more resistant to cracking. By using metal atoms with more electrons in their outer shell, they unlocked the potential to enable ceramics to handle higher levels of force and stress.
Researchers from the University of Tokyo simulated fracture in amorphous solids to better understand material fatigue. They found that the critical strain for irreversible deformation is the same for both fatigue and monotonic fractures.
Computer simulations reveal subtle changes in density near a stiff pillar cause a broader concentration of force than expected. The study's findings suggest that even small variations can significantly impact the properties of composite materials.
Researchers successfully predicted properties of over 120,000 crystal structures using convolutional neural networks, confirming diamond's hardness and suggesting potential superhard materials exist.
Researchers at HKU and Lawrence Berkeley National Lab have developed a new super D&P steel with an unprecedented strength-toughness combination, addressing safety-critical industrial challenges. The breakthrough results in a yield strength resistance of ~2GPa and superior fracture toughness of 102MPåm½.
Lobachevsky University researchers develop high-density ceramic composite inert fuel matrices to burn plutonium and transmute minor actinides. The composites exhibit improved hardness, fracture toughness, and thermophysical properties.
Researchers have created a high-entropy alloy that exhibits exceptional damage tolerance, tensile strength and fracture toughness values, even improving its properties at cryogenic temperatures. The alloy's unique nano-twinning phenomenon contributes to its remarkable mechanical behavior.
Researchers evaluated the fracture toughness of Si3N4/S45C joints with interface cracks of different lengths. The specimen with a 4mm crack exhibited higher apparent fracture toughness due to reduced residual stress. Fracture propagation directions varied depending on crack length.
Researchers at the Max Planck Institute of Metals Research have identified two temperature-dependent mechanisms controlling the brittle-to-ductile transition in materials. Dislocation mobility dominates fracture toughness above a characteristic temperature, whereas dislocation nucleation controls fracture toughness below this temperature.