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was described. The relationship between the zirconia powder characteristics and properties of the ceramic moulds was investigated. The particle size distribution, morphology of particles, viscosity...Effect of particle size distribution on properties of zirconia ceramic mould for TiAl investment castingCHEN Yan-fei, XIAO Shu-long, TIAN Jing, XU Li-juan, CHEN Yu-yong(School of Materials Science......
Influence of heat treatment on nanocrystalline zirconia powder and plasma-sprayed thermal barrier coatings JIANG Xian-liang(蒋显亮)1, LIU Chun-bo(刘纯波)1, LIU Min(刘 敏)2, ZHU Hui-zhao(朱晖朝)2 1. School.... The cubic phase content increased with increasing calcination temperature. Calcination of the powder made the yttria distributed on the surface of the nanocrystalline particles dissolve in zirconia when......
will provide important reference to the development and application of the nanostructured zirconia ceramic coating. 2 Experimental ZrO2-8%Y2O3 (mass fraction, the same below) powder agglomerated... zirconia ceramic crucibles. Heat treatment temperatures were 1 200, 1 250, 1 300, 1 350 and 1 400 ℃, respectively and the heat treatment time was 2 h. After each heat treatment, the powder sample......
distribution including the initial nanostructure of the powder, equiaxed grains and columnar grains. Air plasma sprayed nanostructured zirconia coatings consist of only the nontransformable tetragonal phase, though the reconstituted nanostructured powder shows the presence of the monoclinic, the tetragonal and the cubic phases. The mean grain size of the coating is about 42 nm. Key words: yttria; zirconia......
Article ID: 1003-6326(2005)02-0261-05 Selective laser sintering of polymer-coated Al2O3/ZrO2/TiC ceramic powder BAI Pei-kang(白培康), CHENG Jun(程 军), LIU Bin(刘 斌) (Department of Materials Science and Engineering, North University of China, Taiyuan 030051, China) Abstract: A type of polymer-coated Al2O3/ZrO2/TiC ceramic powder was prepared. The laser sintering mechanism of polymer......
Germany 2017 Abstract: Ytterbia and erbia dual-doped zirconia (ZrO2: Yb3+, Er3+) nanophosphors were successfully synthesized by high-temperature fuel combustion at 1000 °C for 2 h. The effects... that the dual-doped Yb3+ and Er3+ ions result in the non-radiative relaxation, energy migration, and cross relaxation. Key words: nanostructure; luminescence; upconversion; zirconia 1 Introduction In recent......
%(mole fraction) yttria stabilized zirconia(YSZ) with wax and binder was molded into thimble-shape substrate with a powder injection-molding machine. Subsequently, it was degreased and sintered using.... It is obvious that the Fig.1 Schematic diagram of structure of zirconia oxygen sensor: 1 Lead of heater; 2 Lead of internal electrode; 3 Lock ring; 4 Disk spring; 5 Insulating ceramic; 6 Hexagonal......
Preparation of alumina-doped yttria-stabilized zirconia nanopowders by microwave-assisted peroxyl-complex coprecipitation QI Liang(齐 亮), XU Ming-xia(徐明霞), TIAN Yu-ming(田玉明), ZHAO Jin-wei(赵今伟...; accepted 25 April 2006 Abstract: Alumina-doped yttria-stabilized zirconia (ADYSZ) nanopowders were prepared by microwave-assisted peroxyl-complex coprecipitation (MAPCC) using ZrOCl2·8H2O, Y2O3......
]. Ceramic inks consist of ceramic powder, organic solvents and additives. It is vital that the ceramic powder is well dispersed in the liquid carrier, for the ceramic ink flows through small nozzles (40-100... Ink formulation BaTiO3 powder with a median particle size of 0.2 ?m and a specific surface area of 6.5 m2/g was used as raw material for the preparation of BaTiO3 ceramic ink by the mechanical mixing......
; (3) Fig.1 Schematic drawing of ultrasonic spray pyrolysis system The generated powder was collected with a ceramic filter at the end of the tube. 2.2 Characterizations... Preparation of doping titania antibacterial powder by ultrasonic spray pyrolysis WEI Shun-wen(韦顺文)1, PENG Bing(彭 兵)1, CHAI Li-yuan(柴立元)1, LIU Yun-chao(刘云超)1, LI Zhu-ying(李竹英)2 1. School......