Sentences with phrase «as hafnium»
The Temagami Banded Iron Formation, which was formed 2.7 billion years ago during the Neoarchean period, can be used as an archive because the isotopic composition of many chemical elements such as Hafnium and Neodymium directly mirrors the composition of Neoarchean seawater.
https://www.sciencedaily.com/ Not exact matches
Nuclear reactors utilize control rods made from elements such as cadmium, boron or hafnium, all of which are efficient neutron absorbers.
A Cologne working group involving Prof. Carsten Münker and Dr. Elis Hoffmann and their student Sebastian Viehmann (working with Prof. Michael Bau from the Jacobs University Bremen) have managed for the first time to determine the isotope composition of the rare trace elements Hafnium and Neodymium in 2.7 - billion - year - old seawater by using high purity chemical sediments from Temagami Banded Iron Formation (Canada) as an archive.
Ma, who says he has worked with both the Intel and IBM research groups but is not privy to either's design, adds that the presence of silicon dioxide would require chipmakers to add nitrogen to the hafnium oxide as well.
«Our new catalysts contain a transition metal, such as zirconium or hafnium, bound to several organic ligands and act as a bank for oxygen atoms and electrons,» Manz said.
Tungsten contains one isotope of mass 182 that is created when an isotope of the element hafnium undergoes radioactive decay, meaning its elemental composition changes as it gives off radiation.