Additive manufacturing, also called 3-D printing, is commonly used to build complex three-dimensional objects, layer by layer. A*STAR researchers have shown that the process can also help to make a high-performance alloy ...
Engineering
Mar 18, 2019
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7
Hundreds of millions of people worldwide risk exposure to toxic pollution, environmental groups warned Monday, publishing a list of the world's worst areas, including an African processing site for European electronics.
Environment
Nov 5, 2013
3
0
To prevent components from becoming corroded or worn, they are often coated using hexavalent chromium. Starting in September of 2017, though, this will only be permitted with exceptions. The extreme high-speed laser material ...
Engineering
May 30, 2017
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4
Previously controversial values of the energy gap of a van der Waals material—chromium tribromide—were reported based on various optical measurements. A University of Wyoming faculty member and his research team used ...
Materials Science
Jan 19, 2021
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35
The origin of Mercury, the closest planet to the sun, is mysterious in many ways. It has a metallic core, like Earth, but its core makes up a much larger fraction of its volume—85% compared to 15% for Earth.
Planetary Sciences
Jul 10, 2023
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250
Hexavalent chromium continues to contaminate water sources around the world, with one US company fined just this February for putting employees at risk. Hexavalent chromium is considered to be extremely toxic, especially ...
Materials Science
May 6, 2020
0
140
(PhysOrg.com) -- A chain of chemical reactions between organic waste and naturally occurring chromium appears to explain the long-standing elevated levels of the chemical chromium-6, a human carcinogen, in groundwater at ...
Environment
Feb 8, 2010
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0
Toxic heavy metals found in wastewater have health and safety ramifications for communities affected by pollution. Hexavalent chromium is a dangerous, cancer-causing byproduct of industrial processes that is known to cause ...
Analytical Chemistry
Mar 30, 2023
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12
Depositing one layer of atoms at a time can result in materials that greatly improve fuel cells, batteries and other devices. In this research, scientists precisely added chromium to iron oxides to control the electronic ...
Materials Science
Jun 26, 2017
0
5
The pollutants measured in the sediments of Guánica Bay, Puerto Rico, in a new NOAA study were among the highest concentrations of PCBs, chlordane, chromium and nickel ever measured in the history of NOAA's National Status ...
Environment
Feb 7, 2014
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