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Abstract
Disruption erosion tests on La2O3 containing and pure tungsten materials were performed by the electron beam irradiation facility. As a result, it was found that the disruption erosion of La2O3 – W evaluated from the weight loss was three times larger than that of pure – W. The surface observations suggest that the splashing of the melted layer during the electron beam irradiation occurs only for the La2O3 – W, which results in the larger weight loss in disruption erosion. This is considered to be due to the lower melting point of the added La2O3.
