Temat: yttrium - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Transparent yttrium oxide ceramics as potential optical isolator materials
Autorzy:: Kruk, A
Wajler, A
Mrozek, M
Zych, L
Gawlik, W
Brylewski, T
Powiązania:: https://bibliotekanauki.pl/articles/173500.pdf
Data publikacji:: 2015
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: transparent ceramics
optical properties
yttrium oxide
Opis:: The objective of the presented study was to investigate the usefulness of transparent, sintered yttrium oxide for application as optical isolators, i.e., materials with high Verdet constant. The study utilizes the magneto-optical Faraday effect. To obtain yttrium oxide sinters, a commercial Y2O3 powder was applied, with LiF added to facilitate sintering. As a result of hot-press sintering and heating, transparent, dense sinters were obtained. The structure and morphology of the powders and bulk samples and the optical properties of the latter were investigated by means of X-ray diffraction, scanning electron microscopy, visible and near-infrared reflectance spectroscopy, and a study of magneto-optical (Faraday) effects. Measurements of the Faraday effect in the wavelength range of 500–1000 nm indicate high Verdet constants for the above-described materials, which means that they can be effectively applied in laser optics.
Źródło:: Optica Applicata; 2015, 45, 4; 585-594
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: On the possibility of using arc plasma melting technique in preparation of transparent yttria ceramics
Autorzy:: Kruk, Andrzej
Jany, Benedykt R.
Owczarczyk, Karolina
Madej, Dominika
Powiązania:: https://bibliotekanauki.pl/articles/173603.pdf
Data publikacji:: 2019
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: plasma arc melting
transparent ceramic
yttrium oxide
optical properties
Opis:: A state-of-the-art fabrication of Y₂O₃ transparent ceramic by arc plasma synthesis using commercial micron-size powders is reported. The morphological observations of the surface by scanning electron microscope shows that a dense microstructure can be obtained. Arc melted samples are made of a white core and transparent layer. X-ray diffraction studies and also Raman spectroscopy confirm that only one phase occurred in the core and in the transparent layer, and that the physicochemical difference exists. The obtained Y₂O₃ shell ceramics have pores but also relative low absorbance in the VIS-NIR region after double side polishing. The optical band gap and the refractive index are reported. It is concluded that arc plasma melting allows obtaining quickly (10 minutes) dense and highly transparent polycrystalline samples, especially in the VIS-IR spectral region.
Źródło:: Optica Applicata; 2019, 49, 2; 355-364
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

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