Super alloys or high performance alloys have an ability to function at temperatures above 540ºC(1000ºF) with deformation resistance and high surface stability.
Ununseptium was identified on April 5, 2010 by a group of scientists (Russian and American) working at the Joint Institute for Nuclear Research in Dubna, Russia. The group was headed by Yuri Oganessian.
By G.P. Thomas
17 Dec 2012
Seaborgium was first prepared by Albert Ghiorso and his team at the Lawrence Berkeley Laboratory in Berkeley, California in 1974. They bombarded californium-249 atoms with oxygen-18 ions in a Super-Heavy Ion Linear Accelerator to produce seaborgium.
By G.P. Thomas
17 Dec 2012
Samarium was first observed spectroscopically by a Swiss chemist, Jean Charles Galissard de Marignac in 1853 while working with dydimia. Paul-Émile Lecoq de Boisbaudran, a French chemist first isolated samarium along with didymium from the mineral samarskite in 1879.
Rutherfordium was first discovered by a team of scientists led by Georgy Flerov at the Russian Joint Institute for Nuclear Research (JINR) in Dubna in 1964 while bombarding plutonium atoms with neon.
By G.P. Thomas
17 Dec 2012
Radon was first discovered by Fredrich E. Dorn from Germany in 1900 while working with the element radium. Later, in 1908, Robert Gray and William Ramsay isolated the gas which was named as niton. The gas has been called as radon by IUPAC since 1923.
By G.P. Thomas
17 Dec 2012
In 1898, Marie Sklodowska Curie and Pierre Curie discovered radium while studying the radioactivity in pitchblende. They found that the mineral was still radioactive even after removing uranium from it.
By G.P. Thomas
17 Dec 2012
Kasimir Fajans and O.H. Göhring first produced protactinium-234 in 1913 while examining the radioactive decay of uranium. They named the element brevium, which means brief.
By G.P. Thomas
17 Dec 2012
Bohuslav Brauner, a Czech chemist predicted the existence of promethium in 1902. Although several groups claimed to have discovered the element, none of them were able to confirm their discovery.
By G.P. Thomas
17 Dec 2012
In 1841, Carl Mosander separated two elements didymium and lanthanum from cerium. Although didymium was considered as an element for several years, scientists suspected whether didymium has a mixture of elements.
By G.P. Thomas
17 Dec 2012