Structure comparison of PMN–PT and PMN–PZT nanocrystals prepared by gel-combustion method at optimized temperatures

Synthesis of 0.64Pb(Mg1/3Nb2/3)O3–0.36PbTiO3 ceramic near morphotropic phase boundary for high performance piezoelectric, ferroelectric and pyroelectric applications

“…PMN-PT solid solutions have a phase boundary, known as morphotropic phase boundary (MPB), that separates the rhombohedral (R) and the tetragonal (T) ferroelectric phases. This MPB is found for composition lying between 0.73PMN-0.27PT and 0.66PMN-0.34PT (0.27 < x < 0.34) [11]. At higher temperatures (above para-to ferroelectric phase transition temperature), the system becomes cubic for all PT concentrations.…”

Highly (111)-oriented and pyrochlore-free PMN–PT thin films derived from a modified sol–gel process

“…doi:10.1016/j.jallcom.2010.01.109 acetic acid as a catalyst. Acetyl acetone as a stabilizing agent was mixed in the Pb-Mg-Nb-Ti solution at 80 • C and stirred for 2 h. Magnesium acetate rather than alkoxide of magnesium [15] was used as magnesium source to prepare stable PMN-PT sol. Thus, the hydrolysis and polymerization reaction is easier to control.…”

Piezo Spirometer: A New Device for the Diagnosis of Pulmonary Failure

“…The solutions of lead, titanium, niobium, and magnesium were added to the aqueous solution of citric acid under continuous stirring at 60-70 º C and finally, at the end, the pH of the sol was maintained at 7 by the addition of ammonium hydroxide. In order to obtain the gel, the peroxo-citrato-nitrate sol of PMN-PT was heated at about 95 º C. PMN-PT nano-powders were produced by the citrate-nitrate gel-combustion technique [9][10][11]. The flow diagram of the nano-powder's processing method employed in this study is shown in Figure 2.…”