On production, properties, and application of quick-cooled fibers

Abstract

Fibers of metals, alloys, and intermetallic compounds with microcrystalline and amorphous structure at melt cooling speeds up to 106 K/s have been produced by the method of suspended drop extraction from melt. The conditions of quick-cooled metal and alloy formation possessing a high com- plex of mechanical and physical characteristics are shown. The process diagram of manufacture of porous-fibrous metal materials designed for ag- gressive medium filtration and noise suppression in the hot channel designs of gas-turbine engines is proposed. In testing the noise suppression of porous-fibrous metal materials, the effective factor of sound absorption no below than 0.8 is obtained in a range of frequencies of 80–10 000 Hz at the sound pressure level of 110–150 dB.