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KoreanLead-free piezoelectric ceramics Na0.5Bi0.5TiO3 nanowires
Lead-free piezoelectric ceramics Na0.5Bi0.5TiO3 nanowires are piezoelectric ceramic material preparation area. The traditional method of preparation of NBT powder solid-phase sintering is to get the powder due to high temperature processing is easy to join and size distribution uneven. This method is characterized in that includes the following steps: weighing of the molar ratio of 1:1:2 bismuth nitrate, sodium nitrate and tetrabutyl titanate were dissolved in acetic acid followed by deionized water and ethanol, then three kinds of solution mixed and stir, made sol; drying, to obtain the gel powder; gel powder 8 ~ 10M sodium hydroxide added to the aqueous solution, even after mixing, into the sealed reactor 140 ℃ ~ 180 ℃ under the crystallization 12 ~ 24h; crystallization after filtration, washing with deionized water, drying, or the required product. Purpose is to provide a cheap and simple production process, raw materials, energy consumption, with a pure phase of perovskite structure, uniform particle size of lead-free piezoelectric ceramics Na0.5Bi0.5TiO3 Nanowires method.
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