کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4921253 1429336 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of low energy helium plasma irradiation on potassium doped tungsten
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی مهندسی انرژی و فناوری های برق
پیش نمایش صفحه اول مقاله
Effects of low energy helium plasma irradiation on potassium doped tungsten
چکیده انگلیسی
Effects of helium plasma irradiation on spark plasma sintering (SPS) W-K, pure W and traditionally sintered commercial W-K have been studied, concerning the density, grain size and potassium content as the influence factors. Pinholes are formed under 120 eV He ions at 600 °C and 1 × 1023 m−2 fluence on the surface of all samples. It is found that SPS-sintered W-K shows the best irradiation resistance among the present samples, and SPS-sintered pure W exhibits higher irradiation tolerance than commercial W-K. Different He-plasma tolerance was observed among the SPS-sintered W-K samples due to varied potassium content and grain size. In addition, the microstructure evolution under helium irradiation, the growth-migration of helium bubbles and their interactions of potassium bubbles have also been discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fusion Engineering and Design - Volume 117, April 2017, Pages 8-13
نویسندگان
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