Barium calcium zirconate titanate leadless piezoelectric ceramic material and preparation method thereof
A barium calcium zirconate titanate and lead-free piezoelectric technology, which is applied in the field of barium calcium zirconate titanate lead-free piezoelectric ceramic materials, can solve the problems of high sintering temperature of piezoelectric ceramics and difficult application of lead-free piezoelectric ceramics, etc. Achieve the effect of good performance stability and high safety
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[0018]The present invention will be further described in conjunction with embodiment now. Table 1 provides the formulas of a total of 4 samples of the embodiment of the present invention.
[0019] The main raw material of the formula of totally 4 samples of the embodiment of the present invention adopts piezoelectric ceramic raw material, at first adopts conventional chemical raw material to synthesize respectively with solid-phase method during preparation (Ba 0.85 Ca 0.15 )(Ti 0.9 Zr 0.1 )O 3 、BiFeO 3 、 Bi 2 WO 3 , Ba(Yb 1 / 2 Nb 1 / 2 )O 3 , and then according to the above formula ingredients, the prepared material is mixed with dehydrated alcohol by planetary ball mill ball mill, material: ball: dehydrated alcohol=1:3: (0.6~1.0) (mass ratio), after ball milling for 4~8 hours , dry to obtain dry powder, add the polyvinyl alcohol solution that accounts for its weight 8~10% concentration and be 10% (percentage by weight) in the dry powder, carry out granulation, pass th...
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