10/23/061 Overview Magnets and magnetic materials are critical to our nation’s defense Weapons systems that use magnetic materials: Thomas & Skinner is the world leader in high- performance magnets and magnetic materials used in strategic weapons systems

10/23/062 Aegis Radar -- used widely by Army and Navy Valves in nuclear submarines Hellfire missile guidance systems Military aircraft, including F-18, F-22, F-35 Power klystrons –ground-based earth-to-satellite communications amplifiers (KPA’s) and troposcatter communication terminals Minuteman IV ICBM Strategic Defense Applications: Magnetics

10/23/063 Magnetics Crib Sheet Hard Magnets vs Soft Magnetic Materials Hard (Permanent) Magnets Magnetic field WITHOUT an electric current Three general types: –Alnico –Rare Earth SmCo NdFeB –Hard Ferrites Soft Magnetic Materials Magnetic field ONLY with an electric current Multiple types, including: –Electrical steel –Soft Ferrites –Powdered iron

10/23/ Company founded by John Esterline, EE professor at Purdue University James Thomas & O.H. Skinner acquired magnetics division Thomas & Skinner, Inc.

10/23/065 Today Today Employee-owned manufacturer of magnetic materials headquartered in Indianapolis, Indiana. Markets: Thomas & Skinner, Inc.

10/23/066 Goal: Provide the highest quality, domestically- produced custom magnetic components –Stay close to customer base –Maintain technological advantage –Avoid low-technology, low-price segments low-quality and/or high-volume applications Strategy: Compete with anyone in the world for high- quality, high-performance magnetics, bar none Thomas & Skinner, Inc.

10/23/067 Products: Alnico magnets Transformer laminations Employees: Indianapolis, IN Osgood, IN Exports to: Thomas & Skinner, Inc. Soft ferrites Fairfield, NJ -- 68

10/23/068 Hard (permanent) magnet –Known for stability and operating temp. range Max operating temp: 550° C (1000° F) Base materials: –Al uminum –Ni ckel –Co balt –balance of Iron Cast and Sintered in Indianapolis Alnico

10/23/069 Soft (non-permanent) magnetic material –Regulates the voltage in electrical devices Wrapped with copper wire Creates a magnetic field Base material: electrical steel (3.25% silicon) –US Mills: AK Steel Allegheny Ludlum Products stamped in Indianapolis Transformer Laminations

10/23/0610 Soft (non-permanent) magnetic material –Regulates voltage in electrical devices Wrapped with copper wire Creates a magnetic field –Antennas –Sensors Base material: MnZn and NiZn (ceramics) Powder production and machining –New Jersey Soft Ferrites

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