Metallic materials are the basis of dental materials science, which is an important part of dentistry. As a result of their good mechanical properties and some biological properties, metals are widely used in oral rehabilitation of dentition and mandibular defects, orthodontic and dental implants, as well as in the equipment for dental operations. Commonly used metals include nickel chromium, c...

Nitrogen-doped graphene decorated by iron-nickel alloy is introduced as a promising electrode material for supercapacitors. Compared to pristine and Ni-decorated graphene, in acid media, the introduced electrode revealed excellent specific capacitance as the corresponding specific capacitance was multiplied around ten times with capacity retention maintained at 94.9% for 1,000 cycles. Briefly, ...

Rotary root canal instruments manufactured from nickel-titanium alloy have proved to be a valuable adjunct for root canal therapy. Over the past two decades, instrument design has been considerably modified; progress has been made in manufacturing, as well as alloy processing. Clinical procedures and ideal working parameters are still being refined as new instruments continue to be introduced t...

OBJECTIVE The objective of this study was to test the hypothesis that there is no difference between stainless steel and low-nickel stainless steel wires as regards mechanical behavior. Force, resilience, and elastic modulus produced by Quad-helix appliances made of 0.032-inch and 0.036-inch wires were evaluated. METHODS Sixty Quad-helix appliances were made, thirty for each type of alloy, be...

The ferrochrome alloy is produced by electric arc melting of the mineral chromite (FeCr2O4). It is largely used for the production of stainless steels. Increasing the amount of chromium content in the steel allows for increased corrosion and oxidation resistance. Other alloying elements, such as nickel (Ni) or molybdenum (Mo), aid in making the steel more passive and increasing its stainless pr...

Approach • Develop a methodology that provides high-throughput fabrication and analyses of novel alloy materials of arbitrary composition. • Evaluate multi-component alloys consisting of platinum, ruthenium, nickel and zirconium that are corrosion-resistant in acid for catalytic activity. • Analyze results of polarization studies to develop a rationale for catalyst performance. • Evaluate promi...

Raney nickel catalyst alone removes sulfur in reasonable yield from organic sulfur compounds, such as thiols, thioethers, disulfides, hemithioacetals, hemithioketals, diketals, thioamides, thiolesters, thiophenes, thioazoles, sulfoxides, sulfones, isothiocyanates, thioureas, and also organoselenium and tellurium compounds. This desulfurization reaction, therefore, has been used for the solution...

Korrosionsprobleme traten an den Kesselwän­ den von Wirbelschichtkesseln auf, in denen 100 % Altholz unter „Low-NOx­Verhältnissen“ verbrannt wurde. In einem ersten Schritt zum Verständnis der Auswirkungen des Brennstoffs wurden Ablagerungen an verschiedenen Positi­ onen der unteren Kesselwände gesammelt und analysiert. Ein großer Teil dieser Kesselwände war mit der Nickel-Basis-Legierung Alloy ...

Objective: To evaluate marginal discrepancies between cast implant superstructure and EDM processed implant structure. Materials and methods: For the purpose of this study, an experimental model was prepared on which nine cast implant superstructure in nickel-chromium were fabricated which was then subjected to EDM processing. One-screw test was used to verify fit of superstructure both preand ...