Spray coating method for producing dielectric ceramic powder body and obtained products thereof

A ceramic powder and dielectric technology, applied in the field of electronic ceramic powder, can solve the problems of low drying temperature, loss of barium ions, long production cycle, etc., and achieve the effects of ultra-high uniformity, good dispersion and low production cost
CN101314545AInactive Publication Date: 2008-12-03GUANGDONG FENGHUA ADVANCED TECH HLDG
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GUANGDONG FENGHUA ADVANCED TECH HLDG
Publication Date
2008-12-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a spray coating method for preparing dielectric ceramic powder and the dielectric ceramic powder prepared. The spray coating method comprises the following steps: A. main crystal phase ceramic powder and modified metallic ion composite soluble inorganic salt precursor or sol are processed into slurry with good fluidity; B. the slurry in the step A is prepared by deionized water into slurry with a solid content between 5 and 70 percent; and C. the slurry obtained in the step B is stirred and simultaneously conveyed to a spray drier by a feed pump, the feed rate is controlled to between 0.01 and 6.01 liters per minute, and the dielectric ceramic powder required is prepared after spray drying of the slurry at a hot blast temperature of between 120 and 450 DEG C; or D. the dielectric ceramic powder obtained in the step C is placed into a high temperature furnace at a temperature of between 250 and 1200 DEG C for calcinating 0.5 to 6 hours. The method is economic and simple; doped compositions and main crystal phase materials are uniformly distributed; and prepared dielectric powder crystal grains reach submicron or nano level and have superhigh evenness and dispersity.
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Description

technical field

[0001] The invention relates to a spray coating method for preparing electronic ceramic powder and the obtained electronic ceramic powder, in particular to a spray coating method for dielectric ceramic powder for electronic components and the obtained dielectric ceramic powder. Background technique

[0002] The preparation of fine electronic ceramic materials is usually based on the synthesis of the main component sinter or main crystal phase, and the predetermined function is realized by adding one or more doping and modifying components. With the rapid rise of 3G mobile technology and the continuous integration of 3C technology, the continuous rapid development of handheld electronic device terminals represented by mobile phones, GPS, MP3, MP4, flash drives, DC, DV, Bluetooth, and small-sized notebook computers. The continuous development of equipment in the direction of miniaturization, ultra-miniaturization and high reliability has promoted the continuous...

Claims

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