Palladium has long been recognised for its hydrogen sorption and separation capabilities. Alloying with different metals to produce binary alloys has been shown to further improve many of its essential properties significantly. Currently palladium-silver alloys are used commercially for the hydrogen purification process, however, other binary alloys have also been shown to significantly improve...

The improved yield strength of annealed dispersionstrengthened copper (DSC) over conventional OFE copper makes it a possible candidate for use in extremely high potential gradient particle accelerator structures where stability is of critical importance. Test brazes of such structures show that the surface of DSC is not readily wetted by conventional goldbased braze alloys used for copper. Surf...

Although brasses are essentially copper and zinc alloys, they also contain other alloying elements such as lead, silicon, aluminium, iron, tin, manganese, nickel or arsenic whose presence and content are responsible for the wide variety of properties inherent to these materials. In this article, the effect of the chemical composition of brasses, considering each alloying element and the effecti...

In this research, electroplated magnetically isotropic and anisotropic soft alloys and screen-printed soft ferrites applicable to micromachined micromagnetic devices are fabricated and characterized using in situ measurement techniques. Appropriate magnetic materials and deposition methods, such as electroplating and screen-printing techniques, are examined and material test structures are fabr...

Transition metal model pseudopotential (TMMP) technique has been applied to study the short range order (SRO) in nickel alloys Ni100–x–Rhx and Ni100–x–Pdx and a copper alloy Cu100–x–Rhx (x = 2, 5, 8, 11 at. %). All these transition metal alloys form fcc solid solutions for the chosen compositions. The static electrical permittivity ε(q) was taken from the Hubbard–Sham model and/or Geldart–Vosko...

Recently, the industry has seen an increase in the number of Pb-free solder alloy choices beyond the common neareutectic Sn-Ag-Cu (SAC) alloys. New wave solder alloys have been developed with the intent of addressing concerns with copper dissolution, barrel fill, wave solder defects, and the high cost of alloys containing significant amounts of silver. Concerns regarding the poor drop/shock per...

Noroviruses (family Caliciviridae) are the primary cause of viral gastroenteritis worldwide. The virus is highly infectious and touching contaminated surfaces can contribute to infection spread. Although the virus was identified over 40 years ago the lack of methods to assess infectivity has hampered the study of the human pathogen. Recently the murine virus, MNV-1, has successfully been used a...

Abstract This article presents a compositional analysis of metal artifacts from the Postclassic period ( a.d. 1100–1450) city Mayapan, Yucatan, Mexico. We document metallurgical production at R-183, an elite residential group and one most significant archaeological contexts associated with metalworking Mayapan. Salvage excavations in 1998 recovered small cache containing 282 copper bells, two m...