کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1677013 1518094 2006 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Frequency distribution of dust particle size after removal of oxide on carbon steel using low-pressure arc
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Frequency distribution of dust particle size after removal of oxide on carbon steel using low-pressure arc
چکیده انگلیسی

Low-Pressure-Arc (LPA) technology promises to be of use as a new surface decontamination technology for radioactive metal wastes. The radioactive dust generated during a LPA process can cause re-contamination of wastes, therefore the dust needs to be collected. As a fundamental study of the collection of radioactive dust, we applied a LPA to the oxide film at pressures of 13, 190, and 8000 Pa in an argon atmosphere, and investigated the frequency distribution of dust particle size adhering to the specimen. By establishing a method of evaluating the frequency distribution of dust particle size from SEM photographs using non-parametric test, we obtained the following results on the dust adhering to the specimen; (1) more than 80% of the measured particles are distributed within a size of 0.2–1.2 μm to the total number of particles; (2) with the higher pressure, the number ratio of small particles declined, and the number ratio of large particles increased, especially near the track of cathode spot; (3) the further the distance from the removal area, the lower the number ratio of large particles becomes; (4) the ratio of the weight of the dust adhering to the specimen increased from 5% to 15% with the pressure.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volumes 506–507, 26 May 2006, Pages 323–326
نویسندگان
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