Pregled bibliografske jedinice broj: 1090614
ZnO-Al2O3-SiO2 glass ceramics: Influence of composition on crystal phases, crystallite size and appearance
ZnO-Al2O3-SiO2 glass ceramics: Influence of composition on crystal phases, crystallite size and appearance // Journal of non-crystalline solids, 553 (2021), 120481, 8 doi:10.1016/j.jnoncrysol.2020.120481 (međunarodna recenzija, članak, znanstveni)
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Naslov
ZnO-Al2O3-SiO2 glass ceramics: Influence of
composition on crystal phases, crystallite size
and appearance
Autori
Kurajica, Stanislav ; Šipušić, Juraj ; Zupancic, Martina ; Brautović, Igor ; Albrecht, Martin
Izvornik
Journal of non-crystalline solids (0022-3093) 553
(2021);
120481, 8
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
glass-ceramics ; gahnite ; nucleation ; nanocrystals ; dichroism
Sažetak
The influence of composition of ZnO-Al2O3-SiO2 glass with TiO2 as nucleating agent on crystal phases, crystallite size, and appearance of prepared glass-ceramics has been investigated. Thirteen samples with different ratios of ZnO, Al2O3, and SiO2 were prepared by melting the batches. As-prepared and nucleated bulk glass samples were studied using differential thermal analysis (DTA), X-ray diffraction (XRD), and transmission electron microscopy (TEM). It was found that gahnite (ZnAl2O4) is the main phase crystallizing in the course of thermal treatment, while corundum (Al2O3), willemite (Zn2SiO4), zinc titanate (Zn2Ti3O8), and rutile (TiO2) appear in some of the samples as minor phases. Without nucleation, gahnite crystallite size impairs transparency in all samples. When the samples are nucleated, a part of them were translucent and dichroic, grey in reflected, and amber-colored in transmitting light. Translucent sample was found to be densely populated with uniformly distributed and irregularly shaped nano-sized gahnite crystal grains.
Izvorni jezik
Engleski
Znanstvena područja
Kemijsko inženjerstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Projekti:
HRZZ-IP-2018-01-2963 - Hidrotermalna sinteza dopiranog cerij oksidnog nanokatalizatora (HOuDiNI) (Kurajica, Stanislav, HRZZ - 2018-01) ( CroRIS)
Ustanove:
Fakultet kemijskog inženjerstva i tehnologije, Zagreb,
Sveučilište u Dubrovniku
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
Uključenost u ostale bibliografske baze podataka::
- CA Search (Chemical Abstracts)
