High-Strength Porous YSZ Ceramics Fabricated by TBA-Based Gelcasting with High Solid Loading Slurry

Autor:	Sheng Lian Yao, Chan Gan Wang, Yong Huang, Yanhao Dong, Jun Zhou
Rok vydání:	2012
Předmět:	Materials science Mechanical Engineering Microstructure Dispersant Compressive strength Mechanics of Materials visual_art visual_art.visual_art_medium Slurry General Materials Science Cubic zirconia Ceramic Composite material Porosity Yttria-stabilized zirconia
Zdroj:	Key Engineering Materials. :310-314
ISSN:	1662-9795
DOI:	10.4028/www.scientific.net/kem.512-515.310
Popis:	Porous yttria-stabilized zirconia (YSZ) ceramics were fabricated by tert-butyl alcohol (TBA)-based gelcasting method using high solid loading slurry. Micron pores were generated by using low-cost carbon powder as the pore-forming agent. The TBA-based slurries of 50% solid loading appropriate for gelcasting were successfully prepared by using commercial dispersant BYK-163. The rheological behavior of the slurries were measured and discussed. The porosity, microstructure, compressive strength and thermal conductivity of the porous ceramics were tested and analyzed. The results show that this low-cost technology is significant for fabricating porous ceramics with both high compressive strength and low thermal conductivity.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0abbeb4b02be74a0adfa1891546be7a3 https://doi.org/10.4028/www.scientific.net/kem.512-515.310 Zobrazit plný text záznamu