ChemInform Abstract: Phase Stability of Yttria-Stabilized Zirconia with Dissolved Cerium and Neptunium Oxides under Oxidizing and Reducing Atmospheres

Autor:	Tsumetaka Banba, Hajime Kinoshita, Masayoshi Uno, Ken-ichi Kuramoto, Shinsuke Yamanaka, Hisayoshi Mitamura, Tadashi Yanagi
Rok vydání:	2000
Předmět:	Cerium Chemical engineering Dopant Chemistry Neptunium Phase (matter) Oxidizing agent Sintering chemistry.chemical_element Cubic zirconia General Medicine Yttria-stabilized zirconia
Zdroj:	ChemInform. 31
ISSN:	1522-2667 0931-7597
DOI:	10.1002/chin.200041003
Popis:	Phase stability and effects of sintering atmosphere on the crystalline structure of Np-doped yttria-stabilized zirconia (YSZ) were evaluated in comparison with those same properties and conditions for Ce-doped YSZ. Different sintering atmospheres for Ce-doped YSZ led to differences in phase formation through reduction of the dopant from Ce4+ to Ce3+. On the other hand, YSZ specimens containing up to 40 mol% Np formed only a fluorite-structure phase regardless of sintering atmosphere. Yttria-stabilized zirconia thus seems to accommodate Np within a wide range of concentrations and to have excellent phase stability under both oxidizing and reducing atmospheres.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::11837606e8d959691e6a524d233114b5 https://doi.org/10.1002/chin.200041003 Zobrazit plný text záznamu Plný text