A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Shape-Memory Metal Transforms Millions Of Times
An alloy of shape-memory metal has been created by a team of German and American scientists. This metal is capable of being bent and reshaped 10 million times, which seems to be a record.
(I have absolutely no idea what this colorful graphic means)
Manfred Wuttig, a material scientist at the University of Maryland who helped lead the team, said the metal's "fortuitous discovery," was part of a long, frustrating hunt for durable shape-memory metal. As Wuttig and his colleagues detail in a new paper in the journal Science, understanding the secret to this material's hardiness may open the floodgates to a new generation of shape-memory materials that make it into the real world.
"This really is a huge breakthrough, and could make shape-memory alloys much more widely used in everyday technology" says Richard James, a leading shape-memory materials scientist at the University of Minnesota, who was not involved in the research, "I've personally made many, many [shape-memory] alloys that have various super interesting properties, but no one would be able to use them as they last only a few cycles."
The new metal keeps its astounding durability, Wuttig and James agree that scientists now have a platform to test and create new hyper-durable shape-changing alloys. While Wuttig's new alloy was only created in a thin film measuring several hundred micrometers, "the next step is to scale this up into a bulk alloy. But I see no reason why this would be an issue."
The first time I encountered the idea of a shape-memory metal alloy was in the amazing 1966 short novel Babel 17 by Samuel R. Delany:
He raised his hand. "Suppose you needed a gun"—in the Barons's hand now was a sleek vibra-gun of a model later than she had ever seen — ''or a crescent wrench." Now he held a foot long wrench. He adjusted the opening. "Or a machete." The blade glistened as he waved his arm back...
An unexpected property of polarized matter is tensile-memory." They moved toward an archway Into the next room. "Annealed in any shape for a time, and codified, the structure of that shape is retained down to the molecules. At any angle to the direction that the matter has been polarized in, each molecule has completely free movement. Just jar it, and it falls into that structure like a rubber figure returning to shape." The Baron glanced back at the case.
"Simple, really. There"—he motioned toward the filing cabinets along the wall—"is the real weapon: approximately three thousand individual plans incorporating that little polarized chunk..."
(Read more about Tensile Memory Polarized Matter)
Scroll down for more stories in the same category. (Story submitted 10/12/2016)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
you like to contribute a story tip?
Get the URL of the story, and the related sf author, and add
Comment/Join discussion ( 0 )
Related News Stories -
Your Martian Dream Home, Made By Fungi
'... it was the cheapest building material known.' - Larry Niven, 1968.
3D Printed Glass Uses Stereolithography Techniques
'All that with glass...' - Frank Herbert, 1972.
Engineered Living Building Materials
'... it was the cheapest building material known.' Larry Niven, 1968.
Unsinkable Metal Latest Gates Obsession
'A metal... light as cork.' - Edgar Rice Burroughs, 1929.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
CyberOne Robot By Xiaomi vs. Optimus Robot By Tesla
'I shall introduce myself... I am a robot.'
Giving Snakes Their Legs Back
Then some unknown race had chanced upon the dreamers and decided to 'help them out.'
'Ring Nation' Show Predicted By William Gibson In 1999
'... you had your trademark Lucky Dragon Global Interactive Video Column outside.'
SolarXOne Solar-Powered Drone Flies (almost) Forever
'It's an Indian Air Force drone; its solar cells could power an entire farm.'
Video! Chess Robot Breaks Opponent's Finger In Match
'A robot may not injure a human being.'
Virtual Co-Embodyment - Two People Control One Virtual Body
'... we were supposed to be forming five unit composites first."
The Wanderer: Eyebot From Fallout, Eye From Zelazny
'We send our eyes on their appointed rounds, and they can hover or soar or back up...'
Experts Decry Planet-Scale Schemes To Limit Global Heating
'Light from the sun hit those little spheres and bounced.'
OrganEx Revives The Organs In Dead Pig
'Wakened into half-life activity one hour a month...'
NAVER Labs Haptic Device 2.0 Robot vs. IKEA
'... the two pairs of waldoes in the screen followed in exact, simultaneous parallelism.'
Spaceships Should Last So Long
'THE SPACE VESSEL was traveling swiftly… For over five thousand years they had Voyaged on and on.’
Shine On, Portable Wind Turbine
'Sometimes a man has a windmill on his roof...'
Amazing Indoor Robotic Drones Mimic Dolphins and Whales
'They circled the vast audiences, dancing, twittering, chirping...'
Space Station Shutters
'The sun-quilt was a patchwork of colors and materials on the inward side, but silvered on the outward side...'
Tiny Mining - Extract Precious Industrial Minerals From Your Own Body
'Jim, I saw them reduce four of my doctors and nurses into those little cubes!'
MIT Proposes Space Bubbles To Combat Climate Change, Misses The Point Of Space Bubbles
'Fats Jordan was hanging in the center of the Big Glass Balloon, hugging his guitar to his massive black belly above his purple shorts..'
More SF in the News Stories
More Beyond Technovelgy science news stories