Alkali metals adsorbed on metal surfaces attract interest as prototype examples of simple chemisorption [1] and simple metal quantum well systems [2]. In spite of the numerous studies made the electronic structure is still rather poorly characterized. So far, observations of the filled states have been limited to the discrete states that may be formed by alkali metal valence electrons in the en...

Results of initial investigation of thermomechanical couplings in innovative β-Ti alloy called Gum Metal subjected to tension are presented. The experimental set-up, consisting of testing machine and infrared camera, enabled to obtain stress-strain curves with high accuracy and correlate them to estimated temperature changes of the specimen during the deformation process. Both ultra-low elastic...

Ten dental casting alloys were tested for alloy-element release into cell-culture medium, and this release was related to alloy composition, alloy microstructure, and alloy cytotoxicity (previously determined). Cell-culture medium was analyzed for alloy elements by flame atomic absorption. Concentrations of elements in the medium were normalized by dividing them by their atomic abundance in the...

Alkali metal salts M′[(η5-C5H5)M(CO)n] (M′ = alkali metal, M(CO)n = e. g. Fe(CO)2, Ru(CO)2, Mo(CO)3, W(CO)3) [1 – 7] are important starting materials for a wide range of half-sandwich complexes with covalent metal-metal and metal-element bonds. However, since these highly reactive anionic species are commonly prepared and reacted in situ, little is known about their solid-state structures, and ...

The first examples of Group 1 metal complexes of tris(2-dimethylaminoethyl)amine (Me(6)TREN) are reported including monomeric sodium complexes containing eta(4)-bound ligands, suggesting their potential use in alkali-metal-mediated synthetic applications.

Background: The purpose of this study was to compare and evaluate the effects of metal primer on the shear bond strength of denture base resin to base metal alloy after electrolytic and laser etching. Materials and Methods: A total of 48 cobalt‐chromium (Co‐Cr) alloy specimens were fabricated. The specimens were divided into 6 groups of 8 specimens each. Group I: Sandblasting (control group). G...

The gas-phase structures of alkali-metal cationized glutamine are investigated by using both infrared multiple photon dissociation (IRMPD) action spectroscopy, utilizing light generated by a free electron laser, and theory. The IRMPD spectra contain many similarities that are most consistent with glutamine adopting nonzwitterionic forms in all ions, but differences in the spectra indicate that ...