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偏滤器材料研制是近年来聚变研究中的一个重要课题。用小试样模拟试验测试了不同功率密度下的材料表面温度分布。用热等静压焊接方法制作了钨为表面的模拟偏滤器材料小试样 ,用电子束作为热源 ,在真空室中用直径为 0 .3mm的NiCr NiSi热电偶测量了 2～ 9mW m2 功率密度下材料表面的温度分布。结果发现在冷却充分的情况下 ,表面最高温度约 40 0℃ ,钨铜焊缝处的平均温度约 15 0℃ ,可以满足偏滤器正常的工作需要
Development of divertor materials is an important issue in fusion research in recent years. The surface temperature distribution of materials under different power densities was tested with small sample simulations. A small sample of simulated divertor material with tungsten as the surface was produced by hot isostatic pressing method. The power density of 2 ~ 9 mW m2 was measured with a NiCr NiSi thermocouple with a diameter of 0.3 mm in a vacuum chamber using electron beam as a heat source. Under the material surface temperature distribution. The results show that under the condition of sufficient cooling, the maximum surface temperature is about 400 ℃, and the average temperature of tungsten-copper weld is about 150 ℃, which can meet the normal working requirements of divertor