Examples include silicon nitride, zirconia, SiSiC, silicon carbide, boron carbide, alumina, mullite, and ceramic matrix composites (CMC’s).
Engineered ceramics have found increasing applications for high temperature, corrosion resistance, low wearability and a number of other applications. An example of a Class 10 specimen preparation technique is for aluminium oxynitride (AlON) which is a ceramic composed of aluminum, oxygen and nitrogen. It is a transparent ceramic that is harder than glass.
AlON is very hard therefore specimen preparation procedures generally require a CMP (chemical mechanical polishing) component to remove induced microstructural damage. When examining the surface, it is recommended that a sputter coating be used to increase surface reflectivity.
|CLASS 10 Engineered Ceramics|
|Alumina or Sapphire
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