| 摘要 |
<p>The present invention converts the regions of the graphite components in a CZ apparatus that are most prone to erosion to silicon carbide, forming a protective treatment (or "coating"). The coating may cover the entire component or preselected areas of the component. The resulting coating slows erosion of the graphite component and prolongs the lifetime of the component. The method of the invention includes applying a silicon-containing paste to graphite (or other carbon) component and heating the component so that the silicon combines with carbon from the graphite component to form a protective coating. The paste is preferably a mixture of a silicon-containing powder and a carbon-containing liquid.</p> |
