Ceramic material of ceramic electrode for tumor treating fields and preparation method thereof

A method for preparing ceramic material of ceramic electrode for tumor treating fields, wherein the preparation method comprises the following steps:

• 1) synthesizing a[0.67Bi0.995Ce0.005FeO3-0.33BaTiO3]-b[Sr1-xPbxTi1-yZryO3]−c[Pb(Mg1/3Nb2/3)O3] in one step by a solid phase method:
• synthesizing a[0.67Bi0.995Ce0.005FeO3-0.33BaTiO3]-b[Sr1-xPbxTi1-yZryO3]−c[Pb(Mg1/3Nb2/3)O3] powder by taking Bi2O3, CeO2, Fe2O3, BaCO3, TiO2, SrCO3, Pb3O4, ZrO2, MgO, Nb2O5 as raw materials under the temperature of 750 DEG C. to 850 DEG C. for 4 hours;
• Where 0<a<0.06, 0.05<b<0.18, a+b+c=1;
• 0.6≤x≤0.8, 0<y<0.2;
• 2) carrying out fine grinding on the a[0.67Bi0.995Ce0.005FeO3-0.33BaTiO3]-b[Sr1-xPbxTi1-yZryO3]-c[Pb(Mg1/3Nb2/3)O3] powder synthesized in the step 1), adding a binder for granulation after fine grinding, and carrying out compression molding to obtain a biscuit;
• 3) performing plastic discharge to remove organic substances in the biscuit;
• and
• 4) sintering that biscuit to obtain a ceramic material.