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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

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Metallization of ceramic materials based on the kinetic energy of detonation waves

Chmielewski T., Golański D., Włosiński W.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2015

Vol. 63, nr 2

449--456

The paper presents an innovatory low-energy detonation-spraying method suitable for the metallization of ceramic materials, in which the energy necessary for joining the metallic coating with the ceramic is delivered in a mechanical way. In the proposed method, the metallic particles, shot from the spraying gun, impinge onto the ceramic substrate with a high velocity, and their kinetic energy is transformed into heat delivered in a specified portion directly to the region of the metal/ceramic joint being formed. The stress distribution and the temperature field at the coating/substrate interface were analyzed also numerically with the aim to optimize the metallization process parameters so as to stimulate the formation of the coating/ceramic joint and, at the same time, to control the region of heat dissipation, the temperature, and the stress state induced in the joint.