Ceradyne, Inc. develops, manufactures and markets advanced technical ceramic products, ceramic powders and components for defense, industrial, energy, automotive/diesel and commercial applications. The Company operates through four segments: Advanced Ceramic Operations division, ESK Ceramics subsidiary, Thermo Materials division and Boron segment. The Company�s products include lightweight ceramic armor and enhanced combat helmets for soldiers and other military applications; ceramic industrial components for erosion and corrosion resistant applications; ceramic powders, including boron carbide, boron nitride, titanium diboride, calcium hexaboride, zirconium diboride and fused silica, which are used in manufacturing armor and a range of industrial products and consumer products, and evaporation boats for metallization of materials for food packaging and other products. On January 3, 2011, The Company acquired VIOX Corporation.