Title: Composition and preparing process for low-temp. sintered relaxation ferroelectric ceramic material in lead system
Application Number: 93107512 Application Date: 1993.06.30
Publication Number: 1081016 Publication Date: 1994.01.19
Approval Pub. Date: Granted Pub. Date: 1994.11.09
International Classifi-cation: C04B35/00,H01G4/12,H01G7/06
Applicant(s) Name: Qinghua Univ. Address: 100084
Inventor(s) Name: Gui Zhilun, Li Longtu
Attorney & Agent: LUO WENQUN
Abstract:
     Low-temp sintered W-Mg-Zr lead titanate relaxation ferroelectric ceramic modified and doped by ZnO, MnO2, Nb2O5, SiO2, Fe2O3, Al2O3 and CeO2 is made up through such technological steps as proportional mixing WO3, Pb3O4, magnesium subcarbonate, TiO2, ZnO, MnO2, Nb2O5, SiO2, Fe2O3 and lead oxide together, grinding, screening with sieve of 60-80 meshes, presinter at 700-850 deg.C, temp preservation for 1-2 hours, pulverization and screening with 120 or 200 mesh sieve.
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