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.
KeywordsElastic Constant Shear Velocity Ultrasonic Velocity Ultrasonic Measurement Cold Isostatic Pressing
Unable to display preview. Download preview PDF.
- 1.G.A. Matzkanin, “Application of NDE for the Process Control of Metal-Matrix Composite Fabrication”, Proc. NDE Applied to Process Control of Composite Fabrication, eds. G.W. Carriveau and D. Chong, NTIAC Publication, p. 245, 1994.Google Scholar
- 2.B. Grelsson and K. Salama, “Elastic Constants of Particle and Fiber Reinforced Metal-Matrix Composites”, Res. Nondestructive Evaluation, Vol. 2, p. 83, 1990.Google Scholar
- 3.M. Mohrbacher and K. Salama, “Elastic Nonlinearity in Metal-Matrix Composites”. Res. Nondestructive Evaluation, Vol. 3, p. 159, 1991.Google Scholar
- 4.A.T. El-Sayed, M.H. Rahman, Y.C. Chen and K. Salama, “Relationship between Elastic Constants and Particle Deformation in Metal-Matrix Composites”, Paper presented in the 25th Annual Review of Progress in QNDE, Snowbird, Utah, July 1998.Google Scholar
- 5.Metals Handbook, Ninth Edition, Vol. 2, American Society for Metals, 1979.Google Scholar
- 7.M. Orrhede, “Elastic Constants and Thermal Expansion of Aluminum/Silicon Carbide Composites”, Masters Thesis, University of Houston, December 1993.Google Scholar
- 8.D. F. Lee, “Ultrasonic Nondestructive Characterization of SiC-Reinforced Aluminum Metal-Matrix Composites”, Masters Thesis, University of Houston, December 1987.Google Scholar
- 9.N. Mourik, Y. C. Chen and K. Salama, “Ultrasonic Characterization of Elastic Anisotropy in Aluminum-SiC and-Al2O3 Metal-Matrix Composites”, Review of Progress in QNDE, Vol. 16B, p. 1143, 1997.Google Scholar
- 10.J. H. Shyong, C. T. Gie and C. H. Huang, “The Nondestructive Characterization of Metal-Matrix Composites”, Proc. The 5th Int’l Conference on Composites Engineering, Las Vegas, Nevada, July 199Google Scholar
- 11.D.F. Lee, K. Salama and E. Schneider, “Ultrasonic Characterization of SiC-Reinforced Aluminum”, Proc. The 3rd Int’l Symp. on Nondestructive Characterization of Materials, Saarbrucken, Germany, October 1988.Google Scholar