The growth of monoclinic W18O49 nanowires by heat treatment of a tungsten filament at ∼873K and the decomposition of these nanowires under 200keV electron irradiation at ∼1023K have been investigated using in situ transmission electron microscopy (TEM). In situ TEM observation of the growth confirmed the vapor-solid growth mechanism of the monoclinic W18O49 nanowires. In situ irradiation experiments revealed the formation of metallic bcc tungsten from monoclinic W18O 49 nanowires under 200keV electron irradiation.
ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering