Post-Transition Metals
Post-Transition Metals
Electron Microscopy Sciences Colloidal Alumina, 1 Pint 16 OZ
As an acidic colloidal dispersion, Colloidal Alumina chemical-mechanical action provides superior surfaces on germanium, silicon, gallium arsenide, zinc sulphide, fluorides, sapphire, ferrite's and silicon carbide. Low scatter finishes can be obtained on pure metals such as nickel, tungsten, copper, beryllium, steel and aluminum. Epoxy resin materials and plastics can also be fully polished using this colloidal dispersion.
Colloidal Alumina can be used full strength or diluted. Polyurethane and short nap cloths are recommended.
Properties: pH: 3 - 3.5; solids: 20%; viscosity: thixotropic.
Electron Microscopy Sciences Beryllium Support Film, 25x25 mm
A beryllium support film will reduce background interference for microanalysis to a minimum. It is particularly useful where analyses for Carbon or silicon are required and supports contain these elements cannot be used.
A deposition of 250 Angstroms thick Beryllium onto the 0.005" thick, 25x25 mm squares of a Cu substrate. The Be can be removed by dissolving the substrate in nitric acid (50:50). The Be film will then be removed from the acid, washed in distilled water and mounted on TEM grids.
Be support film is its very fine grain size which produces a very sharp ring pattern that can be used for in-situ calibration.