Naslov
X-ray diffraction study of structural changes in GaAs crystalline compound induced by high-energy ball milling and subsequent post-annealing tretments

Autori
Stubičar, Nada ; Popović, Darko ; Bermanec, Vladimir ; Stubičar, Mirko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Zbornik sažetaka / Radić, Nikola - Zagreb : Hrvatsko Vakuumsko Društvo (HVD), 2005, 27-27

Skup
12. Medjunarodni sastanak "Vakuumska znanost i tehnika"

Mjesto i datum
Trakošćan, Hrvatska, 18.05.2005

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
X-ray diffraction; Structural changes; Gallium arsenide (GaAs) crystalline compound; High-energy ball milling; As2O3; Ga2O3.

Sažetak
X-ray diffraction method was applied to detect structural changes in gallium arsenide (GaAs) crystalline compound induced by a high-energy ball-milling and subsequent post-annealing treatments. During milling (up to 10 h) in air at room temperature the GaAs crystals disintegrate into two phases: one crystalline phase indentified as an arsenic oxide (As2O3) and one amorphous phase. During the subsequent annealing (up to 1 h) in the temperature range 450-750 0C, the amorpous phase transforms into gallium oxide (Ga2O3) phase, while As2O3 phase evaporates and escapes from the solid milled sample. This study is interesting as a recycling path of GaAs and is convenient from the ecological aspect.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Geologija, Kemija

POVEZANOST RADA