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液铀的表面张力,曾有Rosen,Spriet,Cahill和Hoage等人进行测定,结果互不一致。我们研究建立一套可在真空或保护气氛下高温送样的液态金属表面张力测定仪进行试验。我们用卧滴法,自建设备(如图1)实测。为了防止铀在测试中氧化和玷污,保护气体在入炉前先经纯化,并在炉内用铀屑(10)再次纯化;试样(20)先放在水冷玻璃管(14)中,待炉内气体高度纯化后才推上ZrO_2托板(8)。托板用水平仪调整水平。
The surface tension of liquid uranium has been measured by Rosen, Spriet, Cahill and Hoage et al. The results are inconsistent. We have studied the development of a liquid metal surface tensiometer capable of delivering samples at elevated temperatures under vacuum or in a protective atmosphere. We use lying drop method, self-built equipment (Figure 1) measured. In order to prevent uranium from being oxidized and contaminated during the test, the protective gas is purified before entering the furnace and purified again with uranium dust (10) in the furnace. The sample (20) is placed in a water-cooled glass tube (14) The furnace gas was highly purified before pushing onto the ZrO 2 plate (8). Pallet level with the level adjustment.