2009
DOI: 10.1016/j.jallcom.2009.02.005
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Industrial precipitation of yttrium chloride and zirconyl chloride: Effect of pH on ceramic properties for yttria partially stabilised zirconia

Abstract: a b s t r a c tTwo 3 mol% partially stabilised zirconia (P-SZ) samples suitable for the SOFC market were manufactured from solutions through to ceramics using a method similar to a known industrial process. The only difference in preparation of the two 3 mol% P-SZ samples was the pH of precipitation which was set at pH 3 or 12. Particle size measurements by dynamic light scattering were used to characterise the precipitate and the filtration rates were investigated. Five point N 2 -BET was used to investigate … Show more

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Cited by 3 publications
(3 citation statements)
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(47 reference statements)
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“…The second step, an exothermic process, centered at 206.7°C is attributed to the dehydroxylation of the sample. In the synthesis procedure, amorphous zirconia is in hydroxide or hydroxide/oxide form [12,16]. The third step, the formation of tetragonal zirconia from amorphous material, occurs at temperature maximum of 467.8°C [7,16,22].…”
Section: Thermal Analysismentioning
confidence: 99%
See 1 more Smart Citation
“…The second step, an exothermic process, centered at 206.7°C is attributed to the dehydroxylation of the sample. In the synthesis procedure, amorphous zirconia is in hydroxide or hydroxide/oxide form [12,16]. The third step, the formation of tetragonal zirconia from amorphous material, occurs at temperature maximum of 467.8°C [7,16,22].…”
Section: Thermal Analysismentioning
confidence: 99%
“…On the chemical syntheses, zirconium salts have been used in an alkaline aqueous media, leading to the production of non-crystalline aqueous hydrogels, which require grinding after drying and calcination processes [8][9][10]. The hydrogel can then be used to produce crystalline material by hydrothermal process [2,11,12]. However, in these procedures, size and shape control of the particles are difficult and sometimes impossible in addition to time wasting.…”
Section: Introductionmentioning
confidence: 99%
“…In order to produce Y 2 O 3 -stabilized zirconia with homogeneous distribution, sol -gel processes or coprecipitation have been adopted, based on the hydrolysis of stoichiometric mixtures of zirconyl chloride and yttrium trichloride (see, e.g., Carter et al , 2009 ). The hydroxides formed are subsequently subjected to aceotropic distillation, drying, calcining between 850 and 950 ° C, wet milling, and spray -drying.…”
Section: Plasma Routementioning
confidence: 99%