Microwave dielectric ceramic Ba3Ti2V4O17 capable of realizing low temperature sintering and preparation method thereof

Microwave dielectric ceramic Ba3Ti2V4O17 capable of realizing low temperature sintering and preparation method thereof

  • CN 103,342,558 A
  • Filed: 06/25/2013
  • Published: 10/09/2013
  • Est. Priority Date: 06/25/2013
  • Status: Active Application
First Claim
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1. but the application of a vanadate conduct low-temperature sintered microwave dielectric ceramic is characterized in that the chemical constitution formula of described vanadate is:

  • Ba 3Ti 2V 4O 17;

    Preparation method'"'"'s concrete steps of described vanadate are;

    (1) with purity is BaCO more than 99.9% 3, TiO 2And V 2O 5Starting powder press Ba 3Ti 2V 4O 17The chemical formula weigh batching;

    (2) step (1) raw material wet ball-milling was mixed 12 hours, solvent is distilled water, the pre-burning 6 hours in 750 ℃

    of air atmosphere of oven dry back;

    (3) in the powder that step (2) makes, add binding agent and granulation after, compression moulding again, sintering 4 hours in 830 ~ 850 ℃

    of air atmosphere at last;

    Described binding agent employing mass concentration is 5% polyvinyl alcohol solution, and dosage accounts for 3% of powder total mass.

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