| 摘要 |
<p>An insulating material, selected from glass or glass-ceramic, is bonded to a metal member, having a coefficient of thermal expansion between about 5-18 x 10<->6 in/in DEG C, by: first applying a coating of boron solution comprising 0-10 weight percent H3BO3 and 10-30 weight percent Na2B4O7 to the metal member, and then, applying the insulating material directly to the coated metal member in a manner to form a solid insulating layer, and a boron glass coating about 25-150 microns thick consisting essentially of about 30-50 weight percent Na2O and about 50-70 weight percent B2O3, the boron coating being disposed between the metal member and the insulating layer.</p> |
