HOME >> MEDICINE >> NEWS
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
kgibson@ameslab.gov
515-293-1405
DOE/Ames Laboratory
6-Feb-2006


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:
*Name:
*Comment:
*Email:


(Date:10/11/2018)... ... October 11, 2018 , ... The Danisco ... leading scientists in their fields recognized by DuPont Nutrition & Health for scientific ... to the future of food, nutrition and health. , This year’s medalists are: ...
(Date:10/11/2018)... ... October 11, 2018 , ... Bizmatics Inc. is a ... and specialties. PrognoCIS , their Health IT Software – provides physicians with ... Houston Healthconnect (GHH), the region’s health information exchange (HIE), serves 24 counties in ...
(Date:10/6/2018)... ... 2018 , ... The iaedp™ Foundation, provider of first-quality education ... of eating disorders (ED), today welcomed KellerLife Center for Eating Disorders as the ... Presidents Council members, it is an honor for us to have KellerLife Center ...
(Date:10/5/2018)... ... 05, 2018 , ... Ophthalmic Instruments, Inc. (OII), a leading ... Major Rob Soltes Memorial Golf Tournament benefitting the Blinded Veterans Association. OII is, ... Day, Monday, October 8th at Oak Creek Golf Club in Irvine, Calif. , ...
(Date:10/5/2018)... Texas (PRWEB) , ... October 05, 2018 , ... ... Cerner Health Conference (CHC) 2018, an annual conference on the latest innovations in ... host this year’s event Oct. 8-11 throughout downtown Kansas City, Missouri. , "We’re ...
Breaking Medicine News(10 mins):
(Date:10/6/2018)... ... October 06, 2018 , ... A ... preferences on bariatric surgery patients. The study looked at patients’ preferences for certain ... to surgery, the patients said they preferred such popular high-calorie foods as ice ...
(Date:10/5/2018)... ... October 05, 2018 , ... Shango Las Vegas dispensary will team ... Shango Premium Cannabis has created pink merchandise to raise funds for the Las Vegas ... funds has been a challenge for Shango. After being spurned by three national and ...
(Date:10/5/2018)... ... , ... A September 24th article on Phys.Org reports on findings ... earth’s first predator, the conodont. Though tiny, the eel-like creatures had teeth they were ... they conodonts could chew. The creatures’ teeth would break, but would quickly be replaced ...
Breaking Medicine Technology:
Cached News: