Oct 31 2007
Morgan Technical Ceramics (MTC), comprising Morgan Advanced Ceramics and Morgan Electro Ceramics, is a leading manufacturer of innovative ceramic, glass, precious metal, piezoelectric and dielectric materials. Providing solutions for critical functions in the aerospace industry, MTC offers components and materials for instrumentation and control systems, transducers and sensors, seals and thermocouples, as well as aero engine repair components.
MTC’s advanced ceramic products- from pump bearings to hermetic seals, thermocouples and sensors to brazing alloys and tooling- provide specific physical benefits critical for aerospace applications. These benefits include exceptional stiffness-to-weight ratio, excellent chemical resistance, dimensional stability through a range of temperatures, high mechanical strength and superior electrical properties.
MTC’s advanced ceramics, including Alumina and Silicon Nitride, are used in aircraft instrumentation and control systems, such as missile guidance systems, satellite positioning equipment, ignition systems, fire detection and suppression, instrument displays and engine monitoring equipment. Additionally, the company’s piezoelectric and dielectric ceramic materials are used in aerospace transducers and sensors. Applications include accelerometers for measuring vibration, gyroscopes that measure the acceleration and pitch of aircraft, missiles and satellites, as well as fuel level sensors. For example, the 60 ultrasonic fuel level sensors in each Boeing 777 utilize Morgan Electro Ceramics’ PZT5A2 piezoceramic material.
MTC’s seals, thermocouples and feedthrus are ideal for aerospace applications that provide a physical interface between different components, due to their ability to withstand the high temperatures, vibration and mechanical shock typical to aircraft engines and other high stress locations. Thermocouples and fire detection feedthrus are constructed from a variety of metal components and high purity Alumina (Al203) ceramic. These corrosion-resistant materials are designed to yield stable hermeticity in severe environments. To ensure component durability, all of MTC’s ceramic-to-metal assemblies are subjected to thermal cycling from -55°F to 1000°F, as well as extended periods at elevated temperatures up to 1000°F.
MTC’s brazing alloys are used in the repair of gas turbine engine components. One example is the use of pre-sintered preforms (PSP) for high temperature braze repair applications. With turbine temperatures reaching up to 1300ºC (2350ºF) and the presence of hot corrosive gases, components experience considerable erosion and wear. MTC’s ability to provide pre-sintered preforms in customized shapes and a range of near net thicknesses eliminates the need for most post-braze machining and extends the life of engine components by up to 300 percent. This makes the use of MTC’s pre-sintered preforms a more reliable and cost effective process than traditional welding, which requires post-braze machining or grinding.