A kind of microwave dielectric ceramic material and preparation method thereof
A technology of microwave dielectric ceramics and dielectrics, applied in ceramics, inorganic insulators, etc., can solve problems such as effects and controllability need to be improved
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[0017] The preparation method includes the following steps:
[0018] Step 1, the raw material Li 2 CO 3 , Nb 2 O 5 , TiO 2 And CaCO 3 Powder according to chemical formula LiNb 0.6 Ti (0.5-x) Ca x O 3 (x=0.01-0.1) Ingredients, planetary ball milling with deionized water as medium for 5 hours, drying at 100℃ after taking out, sieving with 60 mesh screen, and then pre-burning at 870℃ for 4 hours to synthesize the main LNT raw material whose crystal phase is M phase;
[0019] Step 2. Use deionized water as the medium to mill the above LNT raw material planetary ball for 5 hours, take it out and dry it at 100°C, add PVA solution with 4% of it as a binder to granulate, press and shape, and finally at 1100°C Sintered in the atmosphere for 2 hours to prepare doped and modified LiNb 0.6 Ti (0.5-x) Ca x O 3 (x=0.01-0.1) Ceramic material.
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