Hacker News with Generative AI: Materials Science

Physicists have shown that an idealized form of magnetism is heatproof (quantamagazine.org)
Sunlight melts snowflakes. Fire turns logs into soot and smoke. A hot oven will make a magnet lose its pull. Physicists know from countless examples that if you crank the temperature high enough, structures and patterns break down.

Physics, Magnetism, Heat, Materials Science

3 points by headalgorithm 1 day ago | 0 comments

MatterGen: A new paradigm of materials design with generative AI (microsoft.com)
Materials innovation is one of the key drivers of major technological breakthroughs.

Generative AI, Materials Science, Artificial Intelligence, Research

8 points by abhi9u 2 days ago | 0 comments

Plastic crystals could replace greenhouse gases used in refrigerators (techxplore.com)
A team of chemical engineers at Deakin University, working with colleagues from the University of Western Australia, the University of Sydney and Monash University, all in Australia, has found that a type of plastic crystal can be used as a refrigerant, possibly replacing the greenhouse gas currently used in most refrigerators.

Refrigeration, Chemistry, Materials Science, Sustainability, Environment

10 points by geox 13 days ago | 2 comments

Soft Metalens for Broadband Ultrasonic Focusing Through Aberration Layers (nature.com)
Aberration layers (AL) often present significant energy transmission barriers in microwave engineering, electromagnetic waves, and medical ultrasound.

Science, Materials Science, Acoustics, Ultrasound, Optics

16 points by bookofjoe 13 days ago | 2 comments

University of Alabama Engineer Pioneers New Process for Recycling Plastics (news.ua.edu)
Plastic recycling is commonplace but imperfect. Part of the problem, says Dr. Jason Bara, is that current processes yield lower-quality plastics with reduced value and fewer end uses. In a circular plastic economy, any plastic could be broken down to its component parts and then reconstituted into new products with little or no waste.

Engineering, Recycling, Plastics, Materials Science

169 points by thunderbong 13 days ago | 200 comments

Nature inspires self-assembling helical polymer (phys.org)
Inspired by this twisty ladder, researchers from Hiroshima University's Graduate School of Advanced Science and Engineering have developed an artificial polymer that organizes itself into a controlled helix.

Science, Materials Science, Chemistry, Polymer Science

4 points by PaulHoule 21 days ago | 0 comments

Inverse Design of Complex Nanoparticle Heterostructures via DL on Graphs (chemrxiv.org)

Nanotechnology, Machine Learning, Chemistry, Materials Science

23 points by pizza 22 days ago | 8 comments

Physicists measure quantum geometry for first time (phys.org)
MIT physicists and colleagues have for the first time measured the geometry, or shape, of electrons in solids at the quantum level.

Physics, Quantum Mechanics, Materials Science

63 points by pseudolus 26 days ago | 13 comments

Piezoelectric Generators (americanpiezo.com)
Piezoelectric ceramics, when mechanically activated with pressure or vibration, have the capacity to generate electric voltages sufficient to spark across an electrode gap.

Piezoelectricity, Energy Harvesting, Electronics, Materials Science

6 points by danboarder 28 days ago | 0 comments

Self-Assembly Trick Makes Transistors and Diodes (ieee.org)
Using liquid metal, scientists have devised a new way to make electronics that assemble themselves.

Nanotechnology, Electronics, Materials Science

4 points by rbanffy 31 days ago | 0 comments

Silicon Anode Batteries for EVs Are Ready for Production (ieee.org)
While the world is waiting—and waiting—for the giant leap to solid-state batteries, a nimble step to silicon anode cells is well underway. That transitional stage includes a key ingredient made in the U.S., not China.

Batteries, Electric Vehicles, Technology, Materials Science

12 points by rbanffy 35 days ago | 0 comments

Copper evolution and beyond: Advanced interconnects for future CMOS nodes (research.ibm.com)
Even after 27 years, IBM’s innovation in introducing Cu (copper) damascene technology for BEOL (Back-End-of-Line) in CMOS semiconductor production remains the industry standard for high-performance and low-power logic integrated circuit chip manufacturing.

Semiconductors, CMOS, Materials Science, Technology, Innovation

28 points by sandwichsphinx 35 days ago | 4 comments

Researchers discover new third class of magnetism (nottingham.ac.uk)
A new class of magnetism called altermagnetism has been imaged for the first time in a new study. The findings could lead to the development of new magnetic memory devices with the potential to increase operation speeds of up to a thousand times.

Magnetism, Science, Materials Science, Nanotechnology

146 points by pavel_lishin 36 days ago | 55 comments

Engineering tunable catch bonds with DNA (nature.com)
Unlike most adhesive bonds, biological catch bonds strengthen with increased tension.

Biotechnology, Science, DNA, Engineering, Materials Science

15 points by PaulHoule 37 days ago | 1 comments

Is it possible to build a perfectly spherical prince Ruperts drop (2015) (stackexchange.com)
Prince Rupert's Drops are glass objects created by dripping molten glass into cold water. While the outside of the drop quickly cools, the inside remains hot for a longer time. When it eventually cools, it shrinks, setting up very large compressive stresses on the surface.

Physics, Materials Science, Glass, Engineering

49 points by nadermx 37 days ago | 18 comments

Shooting electrons at plastic to make microscopic features [video] (youtube.com)

Nanotechnology, Materials Science, Physics, Video

5 points by supakeen 38 days ago | 0 comments

Lower-cost sodium-ion batteries are finally having their moment (arstechnica.com)
Sodium-ion batteries for electric vehicles and energy storage are moving toward the mainstream. Wider use of these batteries could lead to lower costs, less fire risk, and less need for lithium, cobalt, and nickel.

Energy Storage, Batteries, Electric Vehicles, Materials Science

14 points by givinguflac 41 days ago | 25 comments

Exotic New Superconductors Delight and Confound (quantamagazine.org)
This year, superconductivity — the flow of electric current with zero resistance — was discovered in three distinct materials. Two instances stretch the textbook understanding of the phenomenon. The third shreds it completely.

Physics, Superconductivity, Materials Science

9 points by rbanffy 43 days ago | 0 comments

Portland airport grows with expansive mass timber roof canopy (design-milk.com)
As an alternative to concrete and other conventional composites, wood has re-emerged as a popular building material. Long thought of as too fragile and prone to damage, this natural resource has been re-engineered into a suite of fortified structural elements known as mass timber: glued, nailed doweled panels and beams able to shore-up everything from large residences to full-scale skyscrapers. The especially articulated roof of the recently expanded main terminal at Portland Airport (PDX) might be its most impressive application yet.

Architecture, Sustainability, Materials Science, Design, Aviation

413 points by surprisetalk 43 days ago | 266 comments

Diamonds are forever? World-first carbon-14 diamond battery made (gov.uk)
The world's first carbon-14 diamond has been produced with the potential to provide power for thousands of years.

Science, Energy, Materials Science, Sustainability

17 points by miles 44 days ago | 13 comments

A clean break: Scientists convert plastics into soaps and detergents (phys.org)
A long research project encompassing five or six years finally led to a breakthrough, with Liu, a professor within Virginia Tech's Department of Chemistry housed in the College of Science, and his team of undergraduate and graduate students finding a way to convert certain plastics into soaps, detergents, lubricants, and other products.

Chemistry, Sustainability, Materials Science, Innovation

7 points by PaulHoule 45 days ago | 3 comments

Durable all inorganic perovskite tandem photovoltaics – Nature (nature.com)
All-inorganic perovskites prepared by substituting the organic cations (e.g. methylammonium (MA+) and formamidinium (FA+)) with inorganic cations (e.g. Cs+) are effective concepts to enhance the long-term photo- and thermal-stability of perovskite solar cells (PSCs)1,2.

Science, Materials Science, Photovoltaics

7 points by rbanffy 46 days ago | 1 comments

Chinese researchers indicate diamonds can store data for millions of years (readwrite.com)
Research has suggested that diamond-based storage technology could preserve vast amounts of information for up to millions of years.

Data Storage, Materials Science, Nanotechnology, China

29 points by ms7892 49 days ago | 12 comments

Quantum scars make their mark in graphene (nature.com)
By patterning an ultrathin layered structure with tiny wells, physicists have created and imaged peculiar states known as quantum scars — revealing behaviour that could be used to boost the performance of electronic devices.

Quantum Physics, Materials Science, Graphene

8 points by thunderbong 51 days ago | 1 comments

Bye-bye microplastics: new plastic is recyclable and ocean-degradable (riken.jp)
Researchers led by Takuzo Aida at the RIKEN Center for Emergent Matter Science (CEMS) have developed a durable plastic that won’t contribute to microplastic pollution in our oceans.

Plastic Pollution, Materials Science, Environmental Science, Recycling

7 points by JeanKage 52 days ago | 2 comments

Tunable ultrasound propagation in microscale metamaterials (news.mit.edu)
A new study coauthored by Portela; Rachel Sun, Jet Lem, and Yun Kai of the MIT Department of Mechanical Engineering (MechE); and Washington DeLima of the U.S. Department of Energy Kansas City National Security Campus presents a design framework for controlling ultrasound wave propagation in microscopic acoustic metamaterials.

Acoustics, Metamaterials, Nanotechnology, Materials Science, Engineering

32 points by XzetaU8 55 days ago | 6 comments

Bye-bye microplastics: new plastic is recyclable and ocean-degradable (eurekalert.org)
Researchers led by Takuzo Aida at the RIKEN Center for Emergent Matter Science (CEMS) have developed a new durable plastic that won’t pollute our oceans.

Environment, Sustainability, Materials Science, Plastics

9 points by jbotz 55 days ago | 0 comments

Pulling gold out of e-waste suddenly becomes super-profitable (newatlas.com)
A new method for recovering high-purity gold from discarded electronics is paying back US$50 for every dollar spent, according to researchers – who found the key gold-filtering substance in cheesemaking, of all places.

Recycling, Materials Science, Technology, Sustainability, Business

8 points by infrml 56 days ago | 2 comments

Chemists Create World's Thinnest Spaghetti (phys.org)
The world's thinnest spaghetti, about 200 times thinner than a human hair, has been created by a UCL-led research team.

Chemistry, Science, Materials Science

129 points by pseudolus 57 days ago | 61 comments

Light-based photocatalytic system can break down PFAS at room temperature (phys.org)
Researchers at Colorado State University have found a new approach for breaking down PFAS—a group of human-made "forever" chemicals commonly used for their water-resistant properties that can carry health risks from long-term exposure.

Chemistry, Environmental Science, Water Contamination, Materials Science

21 points by kmckiern 58 days ago | 1 comments