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    • 5. 发明申请
    • PREPARATION METHOD FOR LOW-TEMPERATURE-SINTERABLE Pb-BASED PEROVSKITE DIELECTRIC POWDERS
    • 低温可烧结Pb基陶瓷电介质粉末的制备方法
    • WO00026924A1
    • 2000-05-11
    • PCT/KR1998/000347
    • 1998-10-31
    • C01G33/00C04B35/495C04B35/499H01B3/12C04B35/497
    • H01B3/12C01G33/006C01P2002/34C01P2006/10C01P2006/40C04B35/495C04B35/499
    • There is disclosed a preparation method for a perovskite PMN dielectric powder, including: mixing PbO powder with Nb2O5 powder; adding a solution in which Mg is dissolved to a slurry of the mixture; obtaining a PMN (Pb(Mg1/3Nb2/3)O3) precursor by removing the solvent from the above solution; and calcining the precursor powder at 800 DEG -950 DEG C and sintering the calcined powder. Also disclosed is a preparation method for a perovskite PMN-PT dielectric powder, including: mixing PbO with Nb2O5 powder; adding a solution in which Mg is dissolved to a slurry of the mixture; obtaining a PMN (Pb(Mg1/3Nb2/3)O3) precursor by removing the solvent from the solution; obtaining a PMN-PT (0.9Pb(Mg1/3Nb2/3)O3-0.1PbTiO3) precursor by mixing the above PMN precursor with PbTiO3 powder and drying the mixture; and calcining the PMN-PT precursor powder at 750 DEG -950 DEG C and sintering the calcined powder. Further disclosed is a preparation method for a perovskite PMN-PT dielectric powder, including: mixing PbO, Nb2O5 and TiO2 powder; adding a solution in which Mg is dissolved to a slurry of the mixture; obtaining a PMN-PT precursor powder by removing the solvent from the solution; and calcining the precursor powder at 800 DEG -950 DEG C and sintering the calcined powder.
    • 公开了一种钙钛矿PMN电介质粉末的制备方法,包括:将PbO粉末与Nb 2 O 5粉末混合; 将其中溶解有Mg 2+的溶液加入到混合物的浆料中; 通过从上述溶液中除去溶剂获得PMN(Pb(Mg1 / 3Nb2 / 3)O3)前体; 并将前体粉末在800-950℃下煅烧并烧结煅烧粉末。 还公开了一种钙钛矿PMN-PT电介质粉末的制备方法,包括:将PbO与Nb 2 O 5粉末混合; 将其中溶解有Mg 2+的溶液加入到混合物的浆料中; 通过从溶液中除去溶剂获得PMN(Pb(Mg1 / 3Nb2 / 3)O3)前体; 通过将上述PMN前体与PbTiO3粉末混合并干燥该混合物,得到PMN-PT(0.9Pb(Mg1 / 3Nb2 / 3)O3-0.1PbTiO3)前体; 并在750-950℃煅烧PMN-PT前体粉末并烧结煅烧粉末。 进一步公开了一种钙钛矿PMN-PT电介质粉末的制备方法,包括:混合PbO,Nb2O5和TiO2粉末; 将其中溶解有Mg 2+的溶液加入到混合物的浆料中; 通过从溶液中除去溶剂获得PMN-PT前体粉末; 并将前体粉末在800-950℃下煅烧并烧结煅烧粉末。