Lead-based piezoelectric ceramics typically require sintering temperatures higher than 1000 degrees C at which significant lead loss can occur. Here, we report a double precursor solution coating (PSC) method for fabricating low-temperature sinterable polycrystalline [Pb(Mg1/3Nb2/3)O-3](0.63)-[PbTiO3](0.37) (PMN-PT) ceramics. In this method, submicrometer crystalline PMN powder was first obtained by dispersing Mg(OH)(2)-coated Nb2O5 particles in a lead acetate/ethylene glycol solution (first PSC), followed by calcination at 800 degrees C. The crystalline PMN powder was subsequently suspended in a PT precursor solution containing lead acetate and titanium isopropoxide in ethylene glycol to form the PMN-PT precursor powder (second PSC) that could be sintered at a temperature as low as 900 degrees C. The resultant d(33) for samples sintered at 900 degrees, 1000 degrees, and 1100 degrees C for 2 h were 600, 620, and 700 pm/V, respectively, comparable with the known value. We attributed the low sintering temperature to the reactive sintering nature of the present PMN-PT precursor powder. The reaction between the nanosize PT and the submicrometer-size PMN occurred roughly in the same temperature range as the densification, 850 degrees-900 degrees C, thereby significantly accelerating the sintering process. The present PSC technique is very general and should be readily applicable to other multicomponent systems.