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09-18 

The purity of metals is relative to impurities

09-18 

Common film structures for glass coating

It refers to the heat transfer through 1 square meter of insulating glass per unit time under stable heat transfer conditions, with a temperature difference of 1 ℃ between the air on both sides of the glass, expressed in W/m2K. The lower the K value, the better the insulation performance of the insulating glass, and the more significant the energy-saving effect.

09-18 

Precautions for using platinum crucible

Platinum, also known as platinum, is more expensive than gold and is often used due to its many excellent properties. Platinum has a melting point of up to 1774 ℃, stable chemical properties, and does not undergo any chemical changes or absorb moisture after being burned in air. Most chemical reagents have no corrosive effect on it.

09-18 

Infrared film preparation technology for optical thin films

Magnetron sputtering technology is a mature and widely used technique in the fields of functional and decorative coating. In the process of vacuum magnetron sputtering, the collision between ions and cathodes causes the target material to be sputtered out with particles with 4~6 eV, with an ionization rate of about 10%.

09-18 

Physical and chemical methods for preparing metal powders

Chemical displacement method is based on the activity of metals, using highly active metals to displace less active metals from metal salt solutions, and further processing and refining the resulting metal (metal powder particles) using other methods. This method is mainly applied to the preparation of inert metal powders such as Cu, Ag, Au, etc.

The purity of metals is relative to impurities

Common film structures for glass coating

Precautions for using platinum crucible

Infrared film preparation technology for optical thin films

Physical and chemical methods for preparing metal powders

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