| 摘要 |
<p>Cohesive, vacuum tight bonds between ceramic bodies of the same or different composition in electric discharge vessels are made by applying to the respective surfaces a solution of, or binder free suspension of Li salt, pressing the surfaces together at 250 kg./cm2. and firing at 900-1,100 degrees C in a vacuum or inert gas atmosphere, and allowing to cool to room temp. over 30 mins. in an inert gas stream. Simpler than prior art soldering processes, and does not disturb ceramic properties in the function zone. Aqeuous LiF soln. or cold aqeous or alcoholic Li amide soln. are preferred. Pure or very pure Al and/or beryllium oxide are suggested substrates to be joined, at 150 kg./cm2. pressure and 1,000 degrees C.</p> |
