Acoustic studies of metal-ceramic composites with meso- and nanosize particles |
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| Authors: | A A Abramovich M A Kadyrov and I S Mikhailova |
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| Institution: | 1.St. Petersburg State Technological University of Plant Polymers,St. Petersburg,Russia |
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| Abstract: | The elasticity moduli and absorption coefficients of longitudinal ultrasonic waves with a frequency of 2–50 MHz depending
on the steel concentration and sintering temperature of 1400–1700°C in vacuum were studied in samples of cermet-type composites
on the basis of corundum and stainless steel. The results were discussed from the point of view of the elastic waves propagating
in the fine-disperse two-phase medium at the presence of the intergrain and interphase boundaries, noticeably affecting the
physical properties of the composite. |
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