Our site saves small pieces of text information (cookies) on your device in order to deliver better content and for statistical purposes. You can disable the usage of cookies by changing the settings of your browser. By browsing our site without changing the browser settings you grant us permission to store that information on your device.
R. RUDOLF1,2, M. GILIĆ3, M. ROMČEVIĆ3,* , I. ANŽEL1
Chemically pure copper (99.99) prepared in a sample of square cross-section (10×10 mm2) and about 50 mm long was extremely plastically deformed with the repeated application of Equal Channel Angular Pressing. AFM investigation gives us information on microstructure with ultrafine grains. The structure of the sample surface, such as the copper oxide and surface roughness over-layer, registered by ellipsometry. Two types of lines are registered by Raman spectroscopy: narrow, with the width ∼ 7 cm-1, and wide (∼ 40 cm-1), indicates that nano-sized crystal structures related with three dimensional amorphous boundary spaces exist in the specimen..
Copper, Amorphisation, Atomic force microscopy, Ellipsometric spectroscopy, Raman spectroscopy.
R. RUDOLF, M. GILIĆ, M. ROMČEVIĆ, I. ANŽEL, Optical properties of plastically deformed copper: amorphous state with residual nanocrystals, Optoelectronics and Advanced Materials - Rapid Communications, 5, 9, September 2011, pp.932-935 (2011).
Submitted at: Sept. 2, 2011
Accepted at: Sept. 15, 2011
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
Active accounts were imported to the new platform and assigned a random password by default. In order to access your account you need to access the login page and go through the Lost Password dialog (involves the system sending you an email with instructions) in order to reset your password. This step is necessary as passwords are kept in hashed form and the new platform uses modern hashing algorithms incompatible with the previous ones.