Preparation of Protonic Conductor BaZr0.5Ce0.3Ln0.2O3-δ (Ln = Y, Sm, Gd, Dy) by using a Solid State Reactive Sintering Method
2014 (English)Conference paper (Refereed)
A pure and well crystalized yttrium doped hafnium oxide Hf0.69Y0.31O2-δ (YSH) is obtained by using a modified solid state reaction method, where a water-based milling medium and freeze drying are implemented to reduce the agglomeration. The mean sizes of the YSH powder, which is obtained through a traditional alcohol-based milling method, is more than 1 um. However, the powder size can be reduced to 100 nm by using the water-based milling method. In addition, the calcination temperature can be lowered 200 ℃ to get a pure phase by using the water-based milling method, compared to the alcohol-based milling method. The relative density of YSH ceramic materials can reach to 97.5% by conventional sintering at 1650 ℃ after during 10 h.
Place, publisher, year, edition, pages
2014. Vol. 87, 1-5 p.
, Advances in Science and Technology
IdentifiersURN: urn:nbn:se:kth:diva-165067DOI: 10.4028/www.scientific.net/AST.87.1OAI: oai:DiVA.org:kth-165067DiVA: diva2:807038
13th International Ceramics Congress (CIMTEC2014)
QC 201504232015-04-222015-04-222015-06-15Bibliographically approved