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为了在大面积铝上制备氧化铀的牢固、均匀涂层,我们采用了电化法。对其中影响氧化铀在铝上沉积速度的因素作了试验。由此得出应用此法的良好工作条件为:硝酸铀酰的浓度是5—12克/升UO_2(NO_3)_2·6H_2O;温度是78—85℃;溶液pH值为2—3;铝表面打磨细致程度以较高为宜。根据这些条件,我们制出了面积为12.4×47厘米~2、厚度为0.18毫克/厘米~2和0.39毫克/厘米~2的、牢固而均匀的单面氧化铀涂层。为了检定氧化铀涂层的均匀性,我们利用了核2—50微米原子核乳胶来测量铀放射的α粒子数目,结果表明氧化铀涂层不均匀性<2%。
In order to prepare a solid, uniform coating of uranium oxide on a large area of aluminum, we used an electrochemical method. The factors affecting the deposition rate of uranium oxide on aluminum were tested. It is concluded that the good working conditions for the application of this method are as follows: the concentration of uranyl nitrate is 5-12 g / L UO 2 (NO 3) 2 · 6H 2 O; the temperature is 78-85 ℃; the pH value of the solution is 2-3; Polished to a higher level of detail is appropriate. Based on these conditions, we produced a solid, uniform, single-side uranium oxide coating with an area of 12.4 x 47 cm 2, a thickness of 0.18 mg / cm 2 and 0.39 mg / cm 2. In order to test the uniformity of uranium oxide coatings, we used a nuclear 2-50 micron nucleus of latex to measure the number of alpha particles emitted by uranium, which showed <2% uranium oxide coating non-uniformity.