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Vitreous Substrate

Last updated: November 17, 2016

What Does Vitreous Substrate Mean?

A vitreous substrate is a plate of material designed to have the properties of glass, such as a surface that provides an easy spread of fluids and high luster. They find their use in mechanical applications and in furnaces as structural components. Since they have high purity, they are also used in research through examining samples by using scanning electron microscopes (SEMs). They can also be used to achieve quality aesthetics.

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Corrosionpedia Explains Vitreous Substrate

Most of these products are made by carbon when it is in its glassy state. Vitreous substrates made from pure carbon possess ceramic and glassy properties. The enamel coating used to form vitreous substrates on metals is achieved through pre-treatment of the surface. Porcelain is the most used enamel material when firing is done above 1,472°F / 800°C to achieve the glassy coating; this is mostly applied to cast iron and steel.

The process involves spraying the enamel on the surface of a metal substrate and fusion is achieved through a thermal process of firing. The thermal process creates an inseparable bond between the substrate and the enamel.

Properties of this substrate include:

  • Chemical and temperature resistance
  • Has enhanced mechanical and physical properties
  • Can be cleaned and reused
  • It has increased hardness
  • Enhanced impact resistance
  • It has enhanced corrosion or abrasion resistance
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