Naslov
X-Ray Diffraction Study of Structural Changes in GaAs Crystalline Compound Induced by High-Energy Ball Milling and Subsequent Post-Annealing Treatments

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

Izvornik
Strojarstvo (0562-1887) 48 (2006), 1-2; 51-53

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
arsenic oxide evaporation; crystallization of gallium oxide; decomposition of GaAs compound; GaAs crystals; heat treatment of milled samples; high-energy ball milling; structural changes; X-ray diffraction analysis

Sažetak
X-ray diffraction method was applied to detect structural changes in gallium arsenide (GaAs) crystalline compound induced by the 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 identified as an arsenic oxide (As2O3) and one amorphous phase. During the subsequent annealing (up to 1 h) in the temperature range 450-750 oC, the amorphous phase transforms into gallium oxide (Ga2O3) phase, while (As2O3) phase evaporates and escapes from the solid milled sample. This study is intersting as a recycling path of GaAs and is convenient from the ecological aspect.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija

POVEZANOST RADA