Waermeleitrohr-Wandmaterial aus refraktaeren Metallen mit Zusaetzen an Sauerstoff-stabilisierenden Elementen

摘要

1,194,530. Heat pipes. METALLGESELLSCHAFT A.G. 20 May, 1969 [25 May, 1968], No. 25643/69. Heading F4U. A heat pipe employing lithium as the heat transfer fluid is made from a refractory material containing 5 to 500 p.p.m. of an oxygen stabilizing agent. The refractory material may be tantalum, a tantalum-5% tungsten alloy, niobium or a niobium-1% zirconium alloy, and the stabilizing agent may be yttrium or a rare earth metal, e.g. cerium or lanthanum.