PZT nanocomposites reinforced by small amount of oxides

Nanostructured ceramics: a review of their potential

“…The electrical properties of PZT are often very sensitive to solid-solution reactions with neighbouring phases or sintering additives or through the reduction of the ferroelectric phase during sintering. These issues provided the background to the work carried out by Niihara and coworkers, 18 where small additions of nanoparticulate oxides were expected to have a large effect on the mechanical and electrical properties of the ferroelectric material.…”

Fabrication and mechanical reinforcement of piezoelectric nanocomposites with ZrO2 nanoparticles embedded in situ

“…In the past years, some attempts to improve the mechanical properties have been done by the addition of oxide particles like ZrO 2 , MgO, and Bi 4 Ti 3 O 12 [3][4][5], but the piezoelectric constant d 33 and the electromechanical coupling factor K P decreased dramatically. Recently, significant improvement of mechanical properties, corresponding with a slightly sacrificed value of d 33 , was achieved in PZT/ZrO 2 , PZT/MgO and PZT/ZnO composites [6][7][8], while the problem of the deterioration of K P still remains unsolved.…”

Magnesia induced coagulation of aqueous PZT powder suspensions for direct coagulation casting

“…Desorption of ammonium poly(acrylate) from particle surface resulted in insufficient dispersant surface coverage and hence coagulation of the suspensions. The reactions leading to coagulation of alumina suspensions is as shown It has been reported that incorporation of small amount (<1 vol.%) of MgO increased the mechanical properties of PZT ceramics without deteriorating its piezoelectric properties [24]. This encouraged us to study the coagulation of PZT powder suspensions using MgO as the coagulating agent.…”