R&D on long ceramic‐lined pipes produced by a centrifugal‐thermit process
Author: Odawara, Osamu
Source: International Journal of Materials and Product Technology, Volume 8, Numbers 2-4, November 1993 , pp. 232-234(3)
Publisher: Inderscience Publishers
Abstract:Long ceramic‐lined pipes(>3 m) have been produced by a thermit reaction induced under the effect of a centrifugal force("Centrifugal‐Thermit Process"). The significant feature for the production of long ceramic‐lined pipes is mainly in its reaction propagation under centrifugal effect as well as the centrifugal force and reaction heat; the reaction first proceeds rapidly along the inner surface of the reactant and then in the radial direction, resulting in a homogeneous quality in the direction of pipe length. It is very important in improving the quality of the ceramic‐lined pipes to find the proper conditions of the reactant and centrifugal force; the former mainly determines the produced ceramic layer quality and the latter the achievement of layer separation and the mechanical properties of the pipes. In the present R&D, the conditions of thermal insulation, centrifugal force, the additives to thermit powders, etc. are optimized in order to bring out the potential of the ceramic‐lined pipes produced by the centrifugal‐thermit process.
Document Type: Research Article
Affiliations: Department of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 227, Japan
Publication date: 1993-11-01
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