نتایج جستجو برای: electron beam irradiation

تعداد نتایج: 456538  

Journal: :Nano letters 2016
Ai Leen Koh Emily Gidcumb Otto Zhou Robert Sinclair

In this work, we present systematic studies on how an illuminating electron beam which ionizes molecular gas species can influence the mechanism of carbon nanotube oxidation in an environmental transmission electron microscope (ETEM). We found that preferential attack of the nanotube tips is much more prevalent than for oxidation in a molecular gas environment. We establish the cumulative elect...

برهانی زرندی, محمود ,

In this research, the effects of cooling rate and high energy electron beam irradiation on the change of crystallinity of polypropylene was investigated. For this work, samples of polypropylene heated to 230 ºC and then rapidly cooled with different speed of cooling. Crystalliny of samples were determined by differential scanning calorimetry and infrared spectroscopy. It was shown that percenta...

Journal: :Journal of Radioanalytical and Nuclear Chemistry 2018

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