Transparent cubic-ZrO2 ceramics for application as optical lenses

Autor:	Steffen Reichel, Ulrich Peuchert, Yvonne Menke, Akio Ikesue, Yoshio Okano
Rok vydání:	2009
Předmět:	Materials science Birefringence business.industry Sintering Absorbance Optics Hot isostatic pressing visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Transmittance Crystallite Ceramic Composite material business Refractive index
Zdroj:	Journal of the European Ceramic Society. 29:283-291
ISSN:	0955-2219
DOI:	10.1016/j.jeurceramsoc.2008.03.028
Popis:	Optical transparent polycrystalline ZrO2 ceramics were fabricated by solid-state sintering process using first vacuum sintering followed by hot isostatic pressing. In the visible wavelength range (400–800 nm), the in-line transmittance of 5.6-mm thick samples reaches 68% at exemplary wavelength 600 nm (corresponding to an in-line absorbance based on 10 of A10 = 0.08 cm−1), which is approximately 90% of theoretical limit. The refractive indices of the ZrO2 optoceramics at 630 nm (nd) are varying between 2.10 and 2.20, depending on TiO2 contents, the latter being used as sintering aid. The appearance of birefringence is strongly correlated to the addition of TiO2 as sintering additive in the ceramic samples, whereas addition of TiO2 and simultaneous increase in Y2O3 content resulted in a decrease of birefringence.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e2aa3268b8213264be050d02a6267611 https://doi.org/10.1016/j.jeurceramsoc.2008.03.028 Zobrazit plný text záznamu Full Text from ScienceDirect