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Understanding the Multiple Layers of Vacuum Metalizing

February 8, 2016 by · Leave a Comment 

A rise in popularity has led to vacuum metalizing being a preferred deposition method.

Vacuum metalizing is the process of metal evaporation inside a vacuum-sealed chamber that bonds to a desired substrate to create a thin metalized layer. Similar to other deposition methods, a routine reaction occurs to extract the necessary elements from the material to form the thin layer, vacuum metallization is the preferred method for reflective coatings, heat shielding, vapor barriers, and more.

This coating method involves physical processes and a high rate of temperature to achieve the desired result.

Process Breakdown (First and Second Surfaces)

The initial surface that is being vacuum metalized is comprised of 3 different metal types: the base coat, the top coat, and the high purity condensation.

The base coat is essentially an aesthetic feature as it allows for a fresh glossy surface for evaporated material to adhere to.

The top coat is essentially the protective layer that covers the base coat and the metalized layer.

Both of these coats are important as they protect and provide adhesion to any oxidation or degradation that occurs from the aluminum’s initial contact and ultra violet lights.

The second surface focuses on the deposition process. The evaporated metal is then deposited on the clear substrate and back coated with a unique form of opaque paint. An example would be automotive emblems. The deposition allows for there to be a radiant and glossy appearance.

These two surfaces occur in a specially-designed sputter deposition system that’s engineered to the specific metal-types used. By utilizing a high rate of temperature and physical interaction, it’s one of the more rugged but capable application methods available on the market today.


 

Denton Vacuum, LLC can provide you with the tools needed to achieve ion beam sputter deposition for your personal or commercial needs. Visit them online today.

Hackers attack Egyptian gov’t sites; Internet back (AP)

February 2, 2011 by · Leave a Comment 

AP – A loose international group of hacker activists says it is attacking Egyptian government websites, taking them offline soon after the country restored Internet service Wednesday.

Here is the original:
Hackers attack Egyptian gov’t sites; Internet back
(AP)