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Showing posts with the label shielding

Gas–liquid–solid synthesis method for producing ultra-clean MXenes delivers 160X higher macroscopic electrical conductivity

https://phys.org/news/2026-02-ultra-mxenes-higher.html "MXene production uses harsh chemical etching resulting in chaotic mix of surface atoms (oxygen, fluorine, chlorine) trapping/ scattering electrons, significantly degrading electrical performance/ stability... overcome using MAX phases (solid precursors), molten salts, iodine vapor... uniform halogen termination, precision control, high purity... focused on titanium carbide MXene production... also: 13X THz conductivity, 4X charge carrier mobility... high-speed electronics, shielding, energy/ catalysis"

High-performance radar & 5G/6G base stations manage heat/ improve signal quality for smarter, faster, reliable communication and sensing

https://www.eurekalert.org/news-releases/1103734 "fluorographene nanofiber composite paper... scalable, cost-effective, lightweight... 96.3% transmittance,  thermal conductivity high-power device heat dissipation, 197.4 MPa tensile strength, 11.6 MJ·m-3 toughness/ durability under extreme conditions... preparation time 14 hrs (was 50), nearly 50% less raw material cost for large-scale industrial production... forgoes harsh acids, uniform dispersion for minimal signal loss... antenna covers, em/ thermal shielding: sensors, aerospace, high-frequency electronics" Related: Coordination thermodynamic control of magnetic domain configuration evolution toward low‑frequency electromagnetic attenuation https://www.eurekalert.org/news-releases/1116114 Carbon nanotube 'black paint' absorbs terahertz radiation to cut 6G interference https://phys.org/news/2026-03-carbon-nanotube-black-absorbs-terahertz.html#google_vignette

Bio-based, phase-change MXene/ CNT foams for integrated EMI shielding, thermal management, and IR stealth from thermal cameras

https://www.eurekalert.org/news-releases/1098105 "uses tree derived rubber eucommia ulmoides gum... CNTs / MXenes integrated into salt-template created 2 mm thick porous foam... low IR emissivity due to MXene/ smooth surface, 0.15 W·m⁻¹·K⁻¹ thermal insulation by trapping air, 49.7 dB shielding effectiveness in X-band, blocking >99.9989 % EMI... absorbs/ releases 36.8 J/g preventing heat buildup... compressive strength 825% higher than pure eucommia ulmoides gum foam, maintains 83.5 % shielding performance after rigorous 12-days under high heat/ humidity" Related: Rational high entropy doping strategy via modular in-situ/post solvothermal doping integration for microwave absorption https://www.eurekalert.org/news-releases/1098222 Novel technique shines light on next-gen nanomaterials: how MXenes truly work https://www.eurekalert.org/news-releases/1100844 Liquid metal modified hexagonal boron nitride flakes for efficient electromagnetic wave absorption and thermal management...

Microwave synthesis produces MXene 25 times faster than traditional methods while using 75% less energy

https://phys.org/news/2025-03-microwave-synthesis-mxene-faster-traditional.html "MXene protects from harmful radiation... overcomes multi-step up to 40 hour fabrication, using 90 minute 1-step microwave synthesis, uses 75% less energy... customize MXene's composition changing radiation type protects against... tested their material across the X-band—radio frequencies ranging from 8.0–12.0 GHZ—but to protect against electronic materials in outer space, more testing against cosmic radiation is needed"

Single thin polymer composite film absorbs over 99% of multi-band electromagnetic waves, a world first

https://www.eurekalert.org/news-releases/1061807 "absorption/ shielding <0.5mm thick, <1% reflectance... flexible, durable maintaining shape even after being folded/ unfolded thousands of times, making suitable for use in rollable phones/ wearables... synthesized magnetic material altering ferrite crystal structure... incorporated conductive patterns on film’s back side... adjusting conductive pattern's shape reduces electromagnetic wave reflection at specific frequencies... carbon nanotube thin film applied to the back... smartphones, autonomous vehicle radar” Related: A researcher’s long quest leads to a smart composite breakthrough https://www.eurekalert.org/news-releases/1110952

Lead-free composite shielding material for neutron and gamma-ray

https://english.hf.cas.cn/nr/rn/202112/t20211217_294617.html "novel composite materials are named modified-Gd2O3/B4C/HDPE... The optimal composite achieved as high as 98% neutron shielding rate with the thickness of 15 cm... superior to conventional boron-containing polyethylene for collimating shield which applied to neutron and gamma spectrum diagnostic system of Experimental Advanced Superconducting Tokamak (EAST). And it is expected to be promising radiation shielding material used in neutron-gamma mixed fields" Related: Researchers develop neutron-shielding film for radiation protection https://phys.org/news/2023-11-neutron-shielding.html Engineered composite materials offer broad-spectrum synergistic radiation shielding https://phys.org/news/2025-06-composite-materials-broad-spectrum-synergistic.html A new space radiation shield: Flexible boron nitride nanotube film shows promise https://phys.org/news/2025-11-space-shield-flexible-boron-nitride.html Bismuth melanin biom...