Home Businesses Advanced Materials Group Specialty materials for thin film deposition, microelectronic packaging products and inorganic chemicals. Aerospace Metal Composites Manufacturer of High Performance Metal Matrix Composites and Alloys. Beryllium & Composites Global producer of beryllium-based metals and metal matrix composites. Ceramics Global leader in high-performance engineered ceramics. Electrofusion Focused on beryllium x-ray windows, ultra high vacuum ( UHV ) components and Truextent acoustic solutions. Large Area Coatings Specializing in flexible sputtered thin films that provide consistent electrical and optical properties. Performance Alloys One of the world's leading suppliers of high-performance alloys. Precision Optics Largest manufacturers of precision thin film coatings and optical filters. Technical Materials The world’s leading resource for customized, high-performance specialty strip metal products.