Analysis of Chemical, Microstructural and Mechanical Properties of a CuAlBe Material Regarding Its Role as a Non-Sparking Material.

We developed and analyzed a novel non-sparking material based on CuAlBe for applications in potentially explosive environments. Using a master alloy of CuBe, an established material for anti-sparking tools used in oil fields, mines, or areas with potentially explosive gas accumulations, and pure Al, we used an Ar atmosphere induction furnace to obtain an alloy with ~10 wt% Al and ~2 wt% Be percentages and good chemical and structural homogeneity. The new material was tested in an explosive gaseous mixture (10% H or 6.

Microstructural, Corrosion Resistance, and Tribological Properties of AlO Coatings Prepared by Atmospheric Plasma Spraying.

An usual material, EN-GJL-250 cast iron, used for automotive braking systems, was covered with a ceramic material (105NS-1 aluminium oxide) using an industrial deposition system (Sulzer Metco). The main reason was to improve the corrosion and wear (friction) resistance properties of the cast-iron. Samples were prepared by mechanical grinding and sandblasting before the deposition.

Pediatric neurosurgery--a golden decade.

Pediatric neurosurgery, once an annex of general neurosurgery, has evolved into a well-defined and complex medical specialty. The last 10 years have witnessed major advances in documentation of the minute details of CNS diseases of childhood, refinement of the specific means of action and better adaptation of therapeutic efforts to the requirements of a developing organism. Pediatric neurosurgeons are now increasingly involved in beneficial cooperation within complex medical teams.