HOME >> MEDICINE >> NEWS
Novel Ames Lab composite may replace depleted uranium

AMES, Iowa -- Armor-piercing projectiles made of depleted uranium have caused concern among soldiers storing and using them. Now, scientists at the U.S. Department of Energy's Ames Laboratory are close to developing a new composite with an internal structure resembling fudge-ripple ice cream that is actually comprised of environmentally safe materials to do the job even better.

Ames Laboratory senior scientist Dan Sordelet leads a research team that is synthesizing nanolayers of tungsten and metallic glass to build a projectile. "As the projectile goes further into protective armor, pieces of the projectile are sheared away, helping to form a sharpened chisel point at the head of the penetrator," said Sordelet. "The metallic glass and tungsten are environmentally benign and eliminate health worries related to toxicity and perceived radiation concerns regarding depleted uranium."

Depleted-uranium-based alloys have traditionally been used in the production of solid metal, armor-piercing projectiles known as kinetic energy penetrators, or KEPs. The combination of high density (~18.6 grams per cubic centimeter) and strength make depleted uranium, DU, ideal for ballistics applications. Moreover, DU is particularly well-suited for KEPs because its complex crystal structure promotes what scientists call shear localization or shear banding when plastically deformed. In other words, when DU penetrators hit a target at very high speeds, they deform in a "self-sharpening" behavior.

"It's very desirable to have this type of behavior together with high density, so that's why DU is used, but there has been strong global interest in replacing it since the start of the Gulf War in 1991." said Sordelet.

A popular replacement for DU is tungsten because at 19.3 grams per cubic centimeter, it's a little bit denser than DU. However, tungsten has a very simple crystal structure known as a body-centered cubic structure. "If I made the same solid
'"/>

Contact: Saren Johnston
sarenj@ameslab.gov
515-294-3474
DOE/Ames Laboratory
31-Jan-2007


Page: 1 2 3 4

Related medicine news :

1. Novel candidate biomarker for heart failure also strongly predicts risk of death
2. Novel treatments may help alleviate constipation, IBS in women
3. Novel catheter technique successfully patches holes in the heart
4. Novel anti-oxidant and anti-inflammatory agent shows effectiveness on key endpoints in trial
5. Novel computed imaging technique uses blurry images to enhance view
6. Novel brain areas associated with the recognition of gender, ethnicity and the identity of faces
7. Novel program enhances dementia caregivers quality of life
8. Novel gene therapy may lead to cure in hemophilia A patients
9. Novel therapy combinations gain ground in treating hepatitis
10. Novel stem cell technology leads to better spinal cord repair
11. Novel virus entry mechanism could lead to new drugs against poxviruses

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Novel Ames Lab composite may replace depleted uranium

(Date:4/19/2015)... Lowcostcarinsuranceprice.com has released a new blog ... drivers arrested for DUI. The blog post also discusses ... . , Some pills can have dangerous side ... who are under medication should ask their doctor’s advice ... can be considered driving under the influence and clients ...
(Date:4/19/2015)... Chicago, IL (PRWEB) April 19, 2015 A ... of medical equipment from a major hospital in Brooklyn, NY ... sold including radiology, surgery, endoscopy, lab, anesthesia, exam and much ... 21 and Wednesday, April 22 starting at 9:00am CDT each ... 1400 N. 25th Avenue, Melrose Park, IL 60160. Anyone ...
(Date:4/18/2015)... For some people, tattoos are works of ... rest of their lives, as they have spent a great ... a great amount of thought on their designs. For others, ... them or simply want them removed for personal or professional ... and in 2012-13 there was a 43 percent increase in ...
(Date:4/18/2015)... 18, 2015 Carinsurancehints.com has released a new ... that offer financial protection against fire damage. , ... benefits in case their vehicle is set intentionally on fire. ... by rioting or by other things. , It is ... a single website http://www.carinsurancehints.com/ , in just a ...
(Date:4/18/2015)... Lowcostcarinsuranceprice.com has released a new blog ... auto insurance prices . , Drivers who ... theft may have to pay more for auto insurance ... policies can also offer protection against vehicle theft. ... online on a single website: http://lowcostcarinsuranceprice.com/ . ...
Breaking Medicine News(10 mins):Health News:Driving On Medication - Possible Effects On Auto Insurance Prices 2Health News:Centurion to Sell Surplus Medical Equipment in Online and On-Site Auction 2Health News:Dennis Dass, M.D. is Shattering the Past While Revealing the Future 2Health News:Online Auto Insurance Quotes For Plans That Cover Fire Damages! 2Health News:High Rates Of Car Theft Can Have An Impact on Auto Insurance Prices! 2
(Date:4/17/2015)... --Research and Markets ( http://www.researchandmarkets.com/research/dl9gbg/admetoxicology ) has ... Global Strategic Business Report" report to their offering. ... ADME-Toxicology Testing in US$ Million by the following Segments: ... The report provides separate comprehensive analytics for the ... , Europe , ...
(Date:4/17/2015)... Research and Markets ( http://www.researchandmarkets.com/research/5hkm2f/medical_oxygen ) ... Systems - Global Strategic Business Report" report to ... markets for Medical Oxygen Systems in US$ Thousands by ... Cylinders & Regulators, and Oxygen Conserving Devices. The report ... Canada , Japan , ...
(Date:4/17/2015)... April 17, 2015   IBA Molecular, a ... announced today that it has signed a definitive agreement ... Inc. (IBAM NA), to Illinois Health and Science (IHS). Under ... an independent company headquartered in Dulles, Virginia ... advantage of new product and footprint synergies. IBA Molecular ...
Breaking Medicine Technology:ADME-Toxicology Testing (In-Vivo, & In-Vitro) Market - Global Strategic Business Report 2015: Pharma Industry Renews Focus on Cost Optimization 2Medical Oxygen Systems - 2015 Global Strategic Business Report Featuring Leading Players, Caire, Invacare & Philips Respironics 2Health Care System to Acquire IBA Molecular North America 2Health Care System to Acquire IBA Molecular North America 3
Cached News: