Accession Number : AD0706836
Title : PREPARATION OF HIGH-MODULUS FIBERS BY MASS TRANSPORT DURING FILM BOILING.
Descriptive Note : Technical rept.,
Corporate Author : ARMY MISSILE COMMAND REDSTONE ARSENAL ALA PHYSICAL SCIENCES LAB
Personal Author(s) : Nieberlein,Vernon A.
Report Date : 05 JAN 1970
Pagination or Media Count : 118
Abstract : A process for the preparation of SiC-on-tungsten fibers, was investigated. The process uses, instead of conventional vapor deposition, the mass transport associated with film boiling on an incandescent wire while submerged in a liquid reactant. The diameter of the deposit was used as a measure of the mass transport rate. Analyses of rates were made in both the kinetic limited regime and the diffusion limited regime. Variables investigated were concentration of the plating solution, voltage applied across the filament and position on the filament. The results obtained for mass transport rates were quite analogous to those obtained for heat transfer rates during film boiling and to heat transfer rates during free convection of a gas. (Author)
Descriptors : (*FIBERS, REFRACTORY MATERIALS), (*REFRACTORY COATINGS, FILM BOILING), TUNGSTEN, WIRE, SILICON CARBIDES, MASS TRANSFER, REACTION KINETICS, FILAMENTS
Subject Categories : Ceramics, Refractories and Glass
Coatings, Colorants and Finishes
Distribution Statement : APPROVED FOR PUBLIC RELEASE