Zn–ZnO nanokompozītu pārklājumu iegūšana un struktūras midificēšana atkvēlināšanas laikā

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Zn–ZnO nanokompozītu pārklājumu iegūšana un struktūras midificēšana atkvēlināšanas laikā

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Darba mērķis bija ar mehanoaktivētās oksidēšanas metodi iegūto Zn-ZnO naokompozīto pārklājumu īpašību noskaidrošana atkarībā no atkvēlināšanas temperatūras. Darba gaitā tika novērots, ka iegūtie pārklājumi pēc atkvēlināšanas pārvēršas no tumšām ar metālisku spīdumu apveltītām Zn-ZnO kārtiņām par pilnībā caurspīdīgām ZnO kārtiņām. Iegūti dati par šo pārklājumu mikrostruktūru, nanostruktūru, optiskajām, elektriskajām un mehāniskajām īpašībām. Rezultāti rāda, ka atkarībā no atkvēlināšanas temperatūras mainās pārklājumu struktūra, kas būtiski ietekmē visas iepriekšminētās īpašības. Optimālās atkvēlināšanas temperatūras 873-923K rezultātā palielinās pārklājumu elektropretestība (no ~10-2 līdz 107 Ω•cm), mikro- un nanocietība (no ~3 līdz >10 GPa). Atslēgvārdi: mikrocietība, nanocietība, struktūra, mehanoaktivētā oksidēšana.

year	journal	country	edition	language
2008-01-01

https://dspace.lu.lv/dspace/handle/7/27403

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