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Its construction and principle of operation is simple. It consists of a titanium filament through which a high current (typically around 40 A) is passed periodically. This current causes the filament to reach the sublimation temperature of titanium, and hence the surrounding chamber walls become coated with a thin film of clean titanium.
A sublimatory [1] [2] or sublimation apparatus is equipment, commonly laboratory glassware, for purification of compounds by selective sublimation. In principle, the operation resembles purification by distillation , except that the products do not pass through a liquid phase .
In thermodynamics, the enthalpy of sublimation, or heat of sublimation, is the heat required to sublimate (change from solid to gas) one mole of a substance at a given combination of temperature and pressure, usually standard temperature and pressure (STP). It is equal to the cohesive energy of the solid.
Officials are warning of “bleeding eyes” virus, a.k.a. Marburg virus, after deaths in Rwanda. Here doctors share symptoms, treatments, and prevention.
Tennessee avoided an upset and remained No. 1 in the USA TODAY Sports men's basketball poll, but the rest of the top 10 got shuffled with losses.
SHANGHAI/BERLIN (Reuters) -Mercedes-Benz is betting on China's Momenta to help it win back market share in the world's biggest auto market, with plans for fresh investment and at least four future ...
As a new editor, you may feel a little overwhelmed by the sheer size and scope of Wikipedia.Don't fret! Here are some resources that you can look into: The contributing to Wikipedia page provides information, links, videos and other resources on the basics needed to edit Wikipedia.
Two of baseball's top free agent starters agreed to deals on Tuesday at the Winter Meetings in Dallas.