Ceramics have excellent corrosion resistance. They are highly resistant to corrosion from water, neutral and acidic liquids, concentrated acids and acid mixtures, chlorine, bromine, iodine, and organic compounds. Ceramics also have superior chemical attack resistance compared to other metals and materials. They can withstand extended exposure times and temperatures above 100°C without visible corrosion. Borosilicate glass, a type of ceramic, can even withstand caustic solutions of up to 30% concentration at ambient temperatures without difficulties.
In addition to their corrosion resistance, ceramics are also highly resistant to wear. They can withstand high temperatures, pressures, and other extreme conditions. Some ceramics, such as those with physical vapor deposition coatings like titanium nitride, are not only resistant to wear but also highly resistant to tarnishing and corrosion. These coatings are used for decorative finishes on items like watches, door handles, plumbing fixtures, and marine fixtures. They provide superior hardness, durability, and resistance to wear.
Ceramics are used in a variety of applications where corrosion resistance is crucial. For example, in melting aluminum and other nonferrous metals, ceramics are used as crucibles that offer a high level of resistance to the highly corrosive fluxes and metal treatments involved. Glass-lined steel equipment is another example, where the glass is fused to the steel to provide excellent corrosion resistance. Borosilicate glass 3.3 reactors are also popular in research and development and kilo plant production applications due to their superior corrosion resistance and process visibility.
In summary, ceramics have exceptional corrosion resistance to a wide range of chemicals and substances. They are highly resistant to wear and can withstand harsh environments, high temperatures, and pressures. These properties make ceramics the preferred materials for use in various industries and applications.
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