CoFe2O4/BaTiO3-(Na0.5Bi0.5)TiO3 material and preparation method thereof
A cofe2o4, chemical technology, applied in the field of material science, can solve the problems of high temperature and reduce the performance of composite materials, and achieve the effect of improving performance, excellent ferroelectricity, and inhibiting mutual reactions
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Embodiment 1
[0045] CoFe 2 o 4 / BaTiO 3 -(Na 0.5Bi 0.5 )TiO 3 The chemical expression of the material is xCoFe 2 o 4 / (1-x)0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 , where x is CoFe 2 o 4 The mass percentage of , and x = 0.1.
[0046] The above-mentioned CoFe 2 o 4 / BaTiO 3 -(Na 0.5 Bi 0.5 )TiO 3 The preparation method of material comprises the following steps:
[0047] (1) According to chemical communication 0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 will analyze pure BaCO 3 、TiO 2 、 Bi 2 o 3 、Na 2 CO 3 After preparation, it was mixed evenly by wet ball milling for 4 hours, then dried, sieved, briquetting, and then pre-fired at 880°C for 6 hours to obtain a block product, and then the block sample was crushed and passed through a 120-mesh sieve to obtain 0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 Powder;
[0048] (2) According to the general chemical formula CoFe 2 o 4 Weigh analytically pure Co 3 o 4 , Fe 2 o 3 After preparation, wet ball mill for 6 hours,...
Embodiment 2
[0058] CoFe 2 o 4 / BaTiO 3 -(Na 0.5 Bi 0.5 )TiO 3 The chemical expression of the material is xCoFe 2 o 4 / (1-x)0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 , where x is CoFe 2 o 4 The mass percentage of , and x = 0.2.
[0059] The above-mentioned CoFe 2 o 4 / BaTiO 3 -(Na 0.5 Bi 0.5 )TiO 3 The preparation method of material comprises the following steps:
[0060] (1) According to chemical communication 0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 will analyze pure BaCO 3 、TiO 2 、 Bi 2 o 3 、Na 2 CO 3 After preparation, it was mixed evenly by wet ball milling for 5 hours, then dried, sieved, briquetting, and then pre-fired at 920°C for 4 hours to obtain a block product, and then the block sample was crushed and passed through a 120-mesh sieve to obtain 0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 Powder;
[0061] (2) According to the general chemical formula CoFe 2 o 4 Weigh analytically pure Co 3 o 4 , Fe 2 o 3 After preparation, wet ball mill for 5 hours...
Embodiment 3
[0071] CoFe 2 o 4 / BaTiO 3 -(Na 0.5 Bi 0.5 )TiO 3 The chemical expression of the material is xCoFe 2 o 4 / (1-x)0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 , where x is CoFe 2 o 4 The mass percentage of x=0.3.
[0072] The above-mentioned CoFe 2 o 4 / BaTiO 3 -(Na 0.5 Bi 0.5 )TiO 3 The preparation method of material comprises the following steps:
[0073] (1) According to chemical communication 0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 will analyze pure BaCO 3 、TiO 2 、 Bi 2 o 3 、Na 2 CO 3 After preparation, it was mixed evenly by wet ball milling for 6 hours, then dried, sieved, briquetting, and then pre-fired at 900°C for 5 hours to obtain a block product, and then the block sample was crushed and passed through a 120-mesh sieve to obtain 0.65BaTiO 3 -0.35 (Na 0.5 Bi 0.5 )TiO 3 Powder;
[0074] (2) According to the general chemical formula CoFe 2 o 4 Weigh analytically pure Co 3 o 4 , Fe 2 o 3 After preparation, wet ball mill for 4 hours, then d...
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