Featured Research

from universities, journals, and other organizations

Glasses strong as steel: A fast way to find the best

Date:
April 13, 2014
Source:
Yale University
Summary:
Scientists have devised a dramatically faster way of identifying and characterizing complex alloys known as bulk metallic glasses, a versatile type of pliable glass that's stronger than steel. The new method allows researchers to screen about 3,000 alloys per day and simultaneously ascertain certain properties, such as melting temperature and malleability.

Scientists at Yale University have devised a dramatically faster way of identifying and characterizing complex alloys known as bulk metallic glasses (BMGs), a versatile type of pliable glass that's stronger than steel.

Related Articles


Using traditional methods, it usually takes a full day to identify a single metal alloy appropriate for making BMGs. The new method allows researchers to screen about 3,000 alloys per day and simultaneously ascertain certain properties, such as melting temperature and malleability.

"Instead of fishing with a single hook, we're throwing a big net," said Jan Schroers, senior author of the research, which was published online April 13 in the journal Nature Materials. "This should dramatically hasten the discovery of BMGs and new uses for them."

BMGs are metal alloys composed typically of three or more elements, such as magnesium, copper, and yttrium (Mg-Cu-Y). Certain combinations of elements, when heated and cooled to specific temperatures at specific rates, result in materials with unusual plasticity and strength. They can be used for producing hard, durable, and seamless complex shapes that no other metal processing method can.

Already used in watch components, golf clubs, and other sporting goods, BMGs also have likely applications in biomedical technology, such as implants and stents, mobile phones, and other consumer electronics, said Schroers, who is professor of mechanical engineering and materials science at the Yale School of Engineering & Applied Science.

He said there are an estimated 20 million possible BMG alloys. About 120,000 metallic glasses have been produced and characterized to date.

Using standard methods, it would take about 4,000 years to process all possible combinations, Schroers has calculated. The new method could reduce the time to about four years.

The technique combines a process called parallel blow forming with combinatorial sputtering. Blow forming generates bubble gum-like bubbles from the alloys and indicates their pliability. Co-sputtering is used for fabricating thousands of alloys simultaneously; alloy elements are mixed at various controlled ratios, yielding thousands of millimeter size and micron thick samples.

"Instead of blowing one bubble on one material, we blow-form 3,000 bubbles on 3,000 different materials," Schroers said.

Since 2010, he and his research team have tested about 50,000 alloys using the new method and identified three specific new BMG alloys. They are focused on 10 alloy families.

Ideal BMGs offer plasticity during the manufacturing process, durability, and biocompatibility, along with affordability, Schroers said. Some constituent elements can be costly.


Story Source:

The above story is based on materials provided by Yale University. The original article was written by Eric Gershon. Note: Materials may be edited for content and length.


Journal Reference:

  1. Shiyan Ding, Yanhui Liu, Yanglin Li, Ze Liu, Sungwoo Sohn, Fred J. Walker, Jan Schroers. Combinatorial development of bulk metallic glasses. Nature Materials, 2014; DOI: 10.1038/nmat3939

Cite This Page:

Yale University. "Glasses strong as steel: A fast way to find the best." ScienceDaily. ScienceDaily, 13 April 2014. <www.sciencedaily.com/releases/2014/04/140413135957.htm>.
Yale University. (2014, April 13). Glasses strong as steel: A fast way to find the best. ScienceDaily. Retrieved November 26, 2014 from www.sciencedaily.com/releases/2014/04/140413135957.htm
Yale University. "Glasses strong as steel: A fast way to find the best." ScienceDaily. www.sciencedaily.com/releases/2014/04/140413135957.htm (accessed November 26, 2014).

Share This


More From ScienceDaily



More Matter & Energy News

Wednesday, November 26, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

NASA's First 3-D Printer In Space Creates Its First Object

NASA's First 3-D Printer In Space Creates Its First Object

Newsy (Nov. 26, 2014) The International Space Station is now using a proof-of-concept 3D printer to test additive printing in a weightless, isolated environment. Video provided by Newsy
Powered by NewsLook.com
Bolivian Recycling Initiative Turns Plastic Waste Into School Furniture

Bolivian Recycling Initiative Turns Plastic Waste Into School Furniture

Reuters - Innovations Video Online (Nov. 26, 2014) Innovative recycling project in La Paz separates city waste and converts plastic garbage into school furniture made from 'plastiwood'. Tara Cleary reports. Video provided by Reuters
Powered by NewsLook.com
Blu-Ray Discs Getting Second Run As Solar Panels

Blu-Ray Discs Getting Second Run As Solar Panels

Newsy (Nov. 26, 2014) Researchers at Northwestern University are repurposing Blu-ray movies for better solar panel technology thanks to the discs' internal structures. Video provided by Newsy
Powered by NewsLook.com
Today's Prostheses Are More Capable Than Ever

Today's Prostheses Are More Capable Than Ever

Newsy (Nov. 26, 2014) Advances in prosthetics are making replacement body parts stronger and more lifelike than they’ve ever been. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Space & Time

Matter & Energy

Computers & Math

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins