Zircon contains small amounts of uranium, thorium and radium in its crystalline structure. The ceramic industry is one of the major consumers of zirconium compounds that are used as an ingredient at ∼10-20 % by weight in glaze. In this
Journal of physics. Condensed matter : an Institute of Physics journal, 23(10), 105402-105402 (2011-02-23)
Iron is a ubiquitous impurity in metamict (radiation-damaged and partially amorphized) materials such as titanite (CaSiTiO(5)). Using (57)Fe Mössbauer spectroscopy we find that iron in metamict titanite is partitioned between amorphous and crystalline regions based on valence. Trivalent iron exists
The aim of this study was to characterize the surface of Y-TZP after abrasion with various airborne particles. The Y-TZP blanks were cut into 44 discs and sintered according to the manufacturer's instructions. The specimens were treated as follows: (a)
Science (New York, N.Y.), 340(6135), 941-945 (2013-03-23)
The end-Triassic extinction is characterized by major losses in both terrestrial and marine diversity, setting the stage for dinosaurs to dominate Earth for the next 136 million years. Despite the approximate coincidence between this extinction and flood basalt volcanism, existing
Selective accumulation of zircons and ilmenites in diverticula of the sea urchin Scaphechinus mirabilis (Agazzis, 1863).
Yu N Elkin et al.
Doklady biological sciences : proceedings of the Academy of Sciences of the USSR, Biological sciences sections, 446, 297-299 (2012-11-07)
Unser Team von Wissenschaftlern verfügt über Erfahrung in allen Forschungsbereichen einschließlich Life Science, Materialwissenschaften, chemischer Synthese, Chromatographie, Analytik und vielen mehr..