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So acetylene is faster than ethylene, and ethylene is faster than propene, etc. [6] The molecular weight factor in polymer deposition is dependent on the monomer flow rate, in which a higher molecular weight monomer typically near 200 g/mol needs a much higher flow rate of 15 × 10 4 g/cm 2, whereas lower molecular weights around 50 g/mol ...
The simplest type of glow discharge is a direct-current glow discharge. In its simplest form, it consists of two electrodes in a cell held at low pressure (0.1–10 torr; about 1/10000 to 1/100 of atmospheric pressure).
A flicker light bulb, flicker flame light bulb or flicker glow lamp is a gas-discharge lamp which produces light by ionizing a gas, usually neon mixed with helium and a small amount of nitrogen gas, by an electric current passing through two flame shaped electrode screens coated with partially decomposed barium azide. The ionized gas moves ...
Glow-discharge optical emission spectroscopy (GDOES) is a spectroscopic method for the quantitative analysis of metals and other non-metallic solids. The idea was published and patented in 1968 by Werner Grimm from Hanau, Germany .
A plasma afterglow (also afterglow) is the radiation emitted from a plasma after the source of ionization is removed. [1] The external electromagnetic fields that sustained the plasma glow are absent or insufficient to maintain the discharge in the afterglow.
H: abnormal glow discharge I: unstable region: glow-arc transition J: electric arc K: electric arc A-D region: dark discharge; ionisation occurs, current below 10 microamps. F-H region: glow discharge; the plasma emits a faint glow. I-K region: arc discharge; large amounts of radiation produced. A Townsend discharge can be sustained only over a ...
Radioluminescent paint is a self-luminous paint that consists of a small amount of a radioactive isotope (radionuclide) mixed with a radioluminescent phosphor chemical. The radioisotope continually decays, emitting radiation particles which strike molecules of the phosphor, exciting them to emit visible light.
The density of such boundaries is lower in polymers with very low crystallinity (amorphous polymer) or very high degree of crystalline polymers, consequentially, the transparency is higher. [5] For example, atactic polypropylene is usually amorphous and transparent while syndiotactic polypropylene, which has crystallinity ~50%, is opaque. [ 30 ]