| 摘要 |
<p>A method and an apparatus for flame spraying materials onto a substrate to produce a coating thereon is described which involves generating a flame in a flame spraying gun (12); and feeding the material to be sprayed through the flame in the conventional way. The flame preferably imparts a temperature to the material to be sprayed of 1500 DEG C or less, preferably 1200 DEG C or less. Further, the apparatus preferably includes a cooler (16, 11, 29, 30) for cooling the substrate (19) by bringing a cryogenic fluid into contact with the substrate. Preferably the substrate is cooled so that the solidified coating (40) thereon has a temperature between 25 DEG C and 150 DEG C, preferably 25 DEG C and 100 DEG C. The apparatus and method are particularly suitable for producing superconducting coatings. <IMAGE></p> |
