Ames Laboratory innovation key to a 'lead-free' Europe

Lead has long been recognized as a highly toxic material that can cause brain damage. Its use in paint was banned in 1978 and it was later removed from gasoline to further protect human health. But a burgeoning source electronic waste poses a substantial new threat to the environment as lead and other chemicals leach from computers, cell phones and other electronic devices being buried in landfills.

Beginning July 1, the European Union will strictly limit the amount of lead and other hazardous materials lurking within the circuitry of any electronic appliance sold.1 Given the global nature of the electronics industry, however, the European ban is in essence international in scope. As electronics and appliance manufacturers scramble to meet those tough new restrictions, a lead-free solder developed at the U.S. Department of Energy's Ames Laboratory is playing a key role.

Solder is the shiny metallic "glue" that holds components on circuit boards and bonds other electrical connections. Though a computer's circuit boards contain only small amounts of lead solder, the problem is overall volume. By some estimates, about 3,000 tons of electronic waste is discarded daily just in the U.S.

Composed of lead and tin, traditional solder melts and flows easily, but sets up quickly to create a strong, durable bond between the mating surfaces. A solder blend of 63 percent tin and 37 percent lead, results in a eutectic alloy one that acts like a pure metal with a single melting (and solidification) point.

"Finding a substitute for lead that gave the solder similar properties was difficult," said Ames Laboratory senior metallurgist Iver Anderson. "With our basic understanding of alloys, we developed a tin-silver-copper alloy that offered a lower melting temperature and greater strength than other lead-free alternatives being considered."

The Ames Laboratory's solder technology was patented in 1996 and more than 60 companies

Contact: Kerry Gibson
DOE/Ames Laboratory

Page: 1 2 3

Related medicine news :

1. Story tips from the Department of Energys Oak Ridge National Laboratory, May 2007
2. Rush University Simulation Laboratory honored for innovation
3. Story tips from the Department of Energys Oak Ridge National Laboratory, July 2006
4. How innovation drives our economy set for June 5 at UD
5. World-leading innovation in child-allergy detection
6. Binghamton University researchers ready nanotechnology innovations for market
7. Plastic surgery reflects on its past; Highlights innovations for the future of the specialty
8. Karolinska Institutet prize for innovations in medical pedagogics
9. OSA Frontiers in Optics annual meeting celebrates 90th anniversary of innovation in optics
10. Research team sweeps the board with intensive care innovations
11. Refinements and innovations enhance safety, effectiveness

Post Your Comments:

(Date:10/12/2017)... ... 12, 2017 , ... CitiDent and San Francisco dentists, Dr. ... Oventus O2Vent technology. As many as 18 million Americans are estimated to suffer ... Oral appliances can offer significant relief to about 75 percent of people with ...
(Date:10/12/2017)... PALM CITY, Fla. (PRWEB) , ... October 12, 2017 , ... ... of cold therapy products, announced today the introduction of an innovative new design of ... the multipurpose pad so you get maximum comfort while controlling your pain while using ...
(Date:10/12/2017)... ... 2017 , ... Information about the technology: , Otomagnetics has ... prevention of a major side effect of chemotherapy in children. Cisplatin and carboplatin ... cisplatin, hearing loss is FDA listed on-label as a dose limiting toxicity. Hearing ...
(Date:10/12/2017)... ... 12, 2017 , ... Leading pediatric oncology experts at Children’s National Health ... Congress of the International Society of Paediatric Oncology (SIOP) Oct. 12-15. Chaired ... Cancer and Blood Disorders at Children’s National, and Stephen P. Hunger, M.D., Chief ...
(Date:10/12/2017)... ... October 12, 2017 , ... Health Literacy ... health literacy software tool, and the Cancer Patient Education Network (CPEN), an independent ... today announce a new strategic alliance. , As CPEN’s strategic partner, HLI ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)... their devotion to personalized service, SMP Pharmacy Solutions announces their ... South Florida Business Journal,s 50 Fastest-Growing Companies, and listed for ... specialty pharmacy has found its niche.  To that end, the ... by SFBJ as the 2017 Power Leader in Health Care. ... award in October, Bardisa said of the three achievements, "It,s ...
(Date:9/23/2017)... Sept. 22, 2017 Janssen Biotech, Inc. (Janssen) ... letter from the U.S. Food and Drug Administration (FDA) ... sirukumab for the treatment of moderately to severely active ... clinical data are needed to further evaluate the safety ... active RA. ...
(Date:9/19/2017)... Ky. , Sept. 19, 2017   ZirMed Inc ... predictive analytics, today announced that it has been ranked #1 ... Black Book™ Rankings 2017 User Survey. ZirMed was ... solution for large hospitals and medical centers over 200 beds ... Black Book,s healthcare technology user survey history. ...
Breaking Medicine Technology:
Cached News: