High-nonlinearity ZnO-based polycrystalline ceramic as well as preparation method and application thereof
A high nonlinearity, ceramic technology, applied in the field of high nonlinearity ZnO-based polycrystalline ceramics and its preparation, can solve the problems of limiting the application of wide-bandgap semiconductor materials, immature growth technology, etc., and achieves reduction of material cost and simple preparation method. , the effect of reducing exercise time
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[0025] The present invention will be further described in detail below in conjunction with specific embodiments, which are explanations of the present invention rather than limitations.
[0026] A preparation method of highly nonlinear ZnO-based polycrystalline ceramics, comprising the following steps:
[0027] 1) Use analytically pure raw materials: 93.42mol% ZnO, 1.2mol% Bi 2 o 3 ,1.1mol%Co 2 o 3 ,0.5mol%MnCO 3 , 1.3mol% NiO, 1.48mol% SiO 2 and 1mol% Sb 2 o 3 , after weighing according to the stoichiometric ratio, ball mill in a planetary ball mill, and the mixed slurry after ball milling is dried, ground and sieved, the drying temperature is 80°C, the time of ball milling is 12h, and the speed of ball milling is 300r. min -1 , The screen is 100 mesh screen.
[0028] 2) Preparation: After step 1), the uniformly mixed precursor powder is granulated, stale, tabletted, and debinding, and then sintered in an air atmosphere; the sintering conditions are: heat up from roo...
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