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SYNTHETIC METHOD OF NANO-SIZE LEAD-FREE PIEZOCERAMIC POWDER BY MECHANOCHEMICAL PROCESS
SYNTHETIC METHOD OF NANO-SIZE LEAD-FREE PIEZOCERAMIC POWDER BY MECHANOCHEMICAL PROCESS
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机译：机械化学法合成无铅无铅微粉的方法
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摘要
A method for synthesizing nano-size leadless piezoceramic powder by a mechanochemical process is provided to omit a calcination process, to lower a sintering temperature, and to improve characteristics of leadless piezoceramics. A method for synthesizing nano-size leadless piezoceramic powder having a composition of (K_xNa_(1-x))NbO_3(wherein, x=0-1) by a mechanochemical process includes the steps of: setting a ratio of milling balls and raw material powder, a milling time, a milling container, a material of the milling balls, etc; putting the milling balls and raw material powder into the preset milling container according to the preset ratio; and synthesizing the nano-size leadless piezoceramic powder at ambient temperature by a mechanochemical process for the preset milling time using a vibratory/shaker mill. The vibratory/shaker mill operates at a rate of 900-1200 rpm.
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