Changes in surface structure and mechanical characteristics of Al–5 wt%Si alloy after irradiation by electron beam

Effect of 2 MeV electron beam at the current density 0.09 nA/cm2 on surface structure, nanocrystallite size of (ZrTi)CN nanocomposite coating on steel was investigated at Scanning Electron and Atomic Force microscopes, and also X-ray diffractometer. Using the Rietveld method, two structure phases were indentified in the pristine samples: (ZrTi)(CN)-cubic (space group Fm-3m) and TiC — trigonal (sp.gr.R-3m). Electron beam irradiation to the fluency of [Formula: see text] electron/cm2 resulted in the phase transition of TiC from trigonal (sp.gr.R-3m) to cubic structure (sp.gr.Fm-3m). Besides, nanocrystallite size and shape have changed after the fluency [Formula: see text] electron/cm2. The lattice parameters have increased up to [Formula: see text] electron/cm2 fluence and the nanorcrystallite size of nanocomposite was enlarged 26%, which was attributed to generation of defects.

Download Full-text

Surface structure of alumina ceramics during irradiation by a pulsed electron beam

Technical Physics ◽

10.1134/s1063784213010039 ◽

2013 ◽

Vol 58 (1) ◽

pp. 111-113 ◽

Cited By ~ 14

Author(s):

V. A. Burdovitsin ◽

E. S. Dvilis ◽

A. V. Medovnik ◽

E. M. Oks ◽

O. L. Khasanov ◽

...

Keyword(s):

Electron Beam ◽

Surface Structure ◽

Alumina Ceramics ◽

Pulsed Electron Beam

Download Full-text

Stereospecific Ziegler−Natta Model Catalysts Produced by Electron Beam-Induced Deposition of TiCl4: Deposition Kinetics, Film Structure, and Surface Structure

The Journal of Physical Chemistry B ◽

10.1021/jp013239q ◽

2002 ◽

Vol 106 (6) ◽

pp. 1386-1391 ◽

Cited By ~ 27

Author(s):

Seong Han Kim ◽

Gabor A. Somorjai

Keyword(s):

Electron Beam ◽

Surface Structure ◽

Film Structure ◽

Model Catalysts ◽

Deposition Kinetics ◽

Electron Beam Induced Deposition

Download Full-text

Effect Of The High-Temperature Pulse Deuterium Plasma On The Surface Structure Of Vanadium And Its Physical-Mechanical Characteristics

10.1063/1.1593933 ◽

2003 ◽

Author(s):

I. V. Borovitskaya

Keyword(s):

High Temperature ◽

Surface Structure ◽

Mechanical Characteristics ◽

Deuterium Plasma ◽

Temperature Pulse

Download Full-text

Surface Structure of Sulfur Coated GaAs

MRS Proceedings ◽

10.1557/proc-163-1017 ◽

1989 ◽

Vol 163 ◽

Cited By ~ 1

Author(s):

Yoshihisa Fujisaki ◽

Shigeo Goto

Keyword(s):

Electron Beam ◽

Surface Structure ◽

Chemical Bond ◽

Photoelectron Spectroscopy ◽

Strong Dependence ◽

High Energy ◽

Chemical Bonds ◽

High Energy Electron ◽

X Ray ◽

Beam Diffraction

AbstractSurface structure of (NH4)2S treated GaAs. is investigated using PL (PhotoLuminescence), XPS (X-ray Photoelectron Spectroscopy) and RHEED (Reflection of High Energy Electron beam Diffraction). The data taken with these techniques show the strong dependence upon the crystal orientations coming from the stabilities of chemical bonds of Ga-S and As-S on GaAs crystals. The greater enhancement of PL intensity, the clearer RHEED patterns and the smaller amount of oxides on (111)A than (111)B implies the realization of a more stable structure composed mainly of the Ga-S chemical bond.

Download Full-text