How do the electronic properties of a metal atom change when clusters of different sizes and geometry are formed? Nilius et al. (p. 1853) used scanning tunneling microscopy (STM) to build gold chains with defined numbers of atoms on a nickel-aluminum alloy surface. They then used the STM to perform scanning tunneling spectroscopy on these structures. Conductivity spectra taken at 30 points alon...

Nickel-based alloys are well-known multicomponent with a composition carefully balanced to provide the desired properties for various industrial applications. While these corrosion resistant, under severe conditions can still occur, which result in serious damage system operation. To improve their reliability, of nickel-based be tailored particular operating conditions. resistance, alloying ele...

Nickel-Based Superalloys Nickel-based superalloys are used in the manufacturing of aircraft engine parts and widely studied for their outstanding mechanical resistance at high temperatures. In article number 2100414, Jean Almoric co-workers carried out a chemical characterization very resolution (<30nm) γ-γ' alloy allowing semi-quantification γ' precipitates. This is achieved with an innovative...

A need t o find a suitable replacement for cadmium electroplated coatings on mediumto highstrength steels has accelerated the development of economically viable alternatives. This edited version of a presentation at the 30th annual AerospaceIAirline Plating & Metal Finishing Forum examines the development of Australia's Defence Science and Technology Organisation's (DSTO) zinc-nickel electropla...

Energy Dispersive X-Ray Fluorescence (EDXRF) technique has been used to study two Rupee Indian coins minted during the period 1993 to 2010 for their elemental concentrations. From the analysis of the coins, it is found that the coins are made of binary alloy and it was observed that from 2005 onwards, the composition of the coins has been changed from Cupro-Nickel to Ferritic Stainless Steel (F...

During the refining process of Incoloy825 nickel-based alloy, reaction between slag and Al Ti in alloy can result oxidation loss. Therefore, effect TiO2 Al2O3 contents (CaO–SiO2–Al2O3–MgO–CaF2–TiO2) on final was investigated by slag-metal experiment a 1-kg MoSi2 resistance furnace. The thermodynamic model established based ion molecular coexistence theory kinetic two-film theory. experimental r...

introduction: failures might occur at metal‒porcelain interfaces as a problem with metal‒ceramic restorations even with the application of airborne-particle abrasion technique. this study was undertaken to evaluate the effect of nd:yag laser treatment on the bond strength of porcelain fused to metal. methods:  twenty-four cylindrical specimens (4 mm in diameter and 4 mm in height) were made of ...

introduction: file fracture is one of the main procedural mishaps in endodontic treatment. the aim of this in vitro study was to compare the fracture rate of three niti rotary systems; hero 642, mtwo and flexmaster in artificial canals. methods and materials: in this study, bovine long bone was used. after primary preparation of bones, longitudinal sections with 4-cm diameter were cut and encod...