| 摘要 |
<p>A thermal spraying process used to manufacture a layer for a heat insulating layer made of pulverous material consisting of up to 80 mol.% zirconium silicate comprises selecting process parameters so that the layer has a structure with lamellar elements. A thermal spraying process used to manufacture a layer for a heat insulating layer made of pulverous material (10) consisting of up to 80 mol.% zirconium silicate whose particles have a diameter of 10-100 microns comprises partially melting the particles in a gas stream (42) under reducing conditions and at a temperature of more than 2000o C. The process parameters, including the dwell time of the particles in a heat-releasing medium, especially a plasma (41) or a flame, the temperature of the heat-releasing medium and the impulse carried to the particles are selected so that the layer formed from the particles has a structure with a lamellar elements. Suitable gases or gas mixtures, preferably hydrogen, are used as reducing agents to release silicon-containing gases, especially silicon monoxide, and/or the thermal release of silicon-containing gases is carried out based on a high temperature of the heat-releasing medium.</p> |
