Ultrasonic Velocity Measurements Applied to Process Control of Metal Matrix Composites Densification
Discontinuous metal-matrix composites are emerging as advanced materials for applications requiring high performance isotropic mechanical properties. They offer significant improvement in the mechanical and physical properties over conventional monolithic alloys which can result in significant weight savings. They also have the advantage of tailoring certain properties to meet specific requirements. There are, however, some impediments that adversely limit the use of metal-matrix composites, such as production cost and lack of suitable nondestructive techniques to be applied for the control of processing parameters used in their manufacturing. The control of these parameters will result in the manufacturing of composites with uniform properties and the detection of defects at early stages of processing cycles, which reduce manufacturing cost and enhance productivity.
KeywordsPorosity Quartz Anisotropy Carbide Attenuation
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