Posted February 25, 2018 06:12:38 A new aluminum alloy that is better at absorbing heat than steel could make aluminum-based products more resilient to heat, according to a paper published online February 24 in the journal Science.
The aluminum-rich alloy, called Zn-Sulfur-Cu-Al2O3 (zS3), is better able to absorb heat than either steel or cast iron, according the researchers, led by Robert R. Wood at the University of California, Davis.
The authors used an experiment with a series of aluminum alloy plates made from a combination of zS3 and steel plates.
The researchers measured the strength of the alloy’s plates by using a heat-shock test to test the alloy for heat absorption.
They found that zS4 was superior to alloys made from steel and cast iron.
“Our results suggest that the zS1 alloy has a similar thermal conductivity as steel and that its performance can be enhanced by the use of Zn(sulfur)Co-As, a new aluminum-containing additive, to improve its heat resistance,” the researchers wrote.
The ZnS3 alloy is currently under investigation by the US Department of Energy’s (DOE) Advanced Research Projects Agency-Energy (ARPA-E) for use in energy-efficient aluminum composites.
“The zS2 is also currently being investigated as a candidate for a low-cost alloy that may be used in future energy-saving technologies,” Wood said.
Wood and his colleagues were able to find zS5, which is similar to the Zn1 alloy, by combining different amounts of zR6.
They used an alloy of zT6 with zT4 as the base material.
The zR5 alloy is also being studied by ARPA-Es scientists.
Wood said the research is important because the Zr-1 alloy is one of several promising candidates that are being investigated for use as energy-absorbing metals.
Other zS6-based metals include Zr6-Zn3, Zn6-T3 and Zr7-T6, he said.
Zn7 is already in use in some aluminum compositions, and the researchers found that its properties are similar to those of zr6, Wood said in a statement.
“Although the Znr6-type metal does not have the same properties as the zR7-type, it is better suited for use on low-temperature applications like air-conditioning systems,” Wood added.
The research was supported by the DOE Office of Science, the U.S. Department of Defense Office of Energy Efficiency and Renewable Energy, the National Science Foundation, the University at Albany and the US Army Research Office.
The study was supported in part by the UF/IFAS Department of Materials Science and Engineering.
Wood is a senior fellow at the Woods Institute for the Environment, where he focuses on the chemistry, physics and engineering of carbon, nitrogen, oxygen and other organic molecules.
He received his Ph.
D. from the University, and his B.S., M.S./B.A. and R.S.-certified in organic chemistry from the California Institute of Technology.
Wood’s work was supported through grants from the UFS (Advanced Technology Vehicles), the DOE, the US Defense Advanced Research Project Agency (DARPA) and the U-M Energy Center.