Sintering of α-alumina for highly transparent ceramic applications

Autor:	Sandrine Trombert, Marie-Hélène Ritti, Stéphane Landais, Jean-Luc Lunel, Johan Petit, Alessandra Sergent, Robert Marino, Philippe Dethare
Rok vydání:	2011
Předmět:	Materials science Birefringence Scattering Metallurgy Sintering Grain size Hot isostatic pressing visual_art Materials Chemistry Ceramics and Composites visual_art.visual_art_medium Relative density Diffuse reflection Ceramic
Zdroj:	Journal of the European Ceramic Society. 31:1957-1963
ISSN:	0955-2219
Popis:	In this paper we present our results on the sintering of α alumina ceramics by hot isostatic pressing. It describes a simple method for obtaining precise relative density values on our almost 100% dense samples. Then, transparency results are discussed with respect to grain size and residual porosity measurements, comparing them to scattering calculations. Our results are not far from the best reported transmission values: almost 60% for a 1 mm thick sample. The other 40% diffuse light comes from the birefringence of alumina for the most part. However, they are transparent enough to see detailed structures at several kilometers through them.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e7593e29164c1c096ebab77b97d63478 https://doi.org/10.1016/j.jeurceramsoc.2011.04.034 Zobrazit plný text záznamu Full Text from ScienceDirect