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  HOME > Characteristics of Fine Ceramics > Chemical - Chemical Resistance 
Chemical
Chemical Resistance Biocompatibility
Highly Resistant to Chemicals
Fine Ceramics (also known as “advanced ceramics”) possess high levels of chemical stability. As a result, Fine Ceramic materials are highly resistant to chemical corrosion.


Applications: Valves, devices and pump components for fluid handling and chemical processing applications in chemicals factories; Fine Ceramic scissors.

Description
Chemical Resistance

Even the strongest materials may have a limited range of applications if they are chemically soluble. Harsh chemicals are frequently used in factories; even water is corrosive to many common metals. In order to measure chemical resistance, several tests were conducted with Fine Ceramics and iron that had been soaked in
chemicals — including hydrochloric acid, sulfuric acid, nitric acid, sodium hydroxide and hydrofluoric acid. The results were analyzed, and materials that dissolved in relatively large quantities were determined to be more sensitive to chemicals.

Stainless steel dissolved in hydrochloric acid, and, similarly, stainless steel, zirconia and silicon nitride dissolved in hydrofluoric acid, all exhibit high levels of solubility. Alumina and silicon carbide displayed resistance to all of the chemicals in the tests. Alumina and silicon carbide are substances which possess particularly high levels of resistance to chemicals (low chemical solubility).

Chemical Resistance
Image : Chemical Resistance Graph  Alumina and Silicon Carbide (Measuring method / Measurements conform to JIS R 1614-1993 / ISO 17092: 2005)
  For more information, please see Excerpt of Graph Values.
   
 
The term "Fine Ceramics" is interchangeable with "advanced ceramics," "technical ceramics" and "engineered ceramics." Use varies by region and industry.
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