Process for laser preparation of hexagonal phase barium titanate ceramic
A phase barium titanate and laser technology, which is applied in the field of preparation of hexagonal phase barium titanate ceramics, can solve the problems of impurity pollution, difficult control of the sintering process, long sintering time, etc., and achieve high repeatability, pollution-free sintering, and short preparation time short effect
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Embodiment 1
[0027] Example 1: BaTiO is irradiated with German Rofin-sina RS2500 laser 3 Ceramic body; firstly, continuously increase the laser power density from 0 to sintering power density value of 466w / cm within 60s 2 , the rotation speed of the rotary table is 120° / s, after 20s of sintering time, then reduce the laser power to zero within 60s; the laser is turned off. The sample cools down to porcelain.
Embodiment 2
[0028] Example 2: BaTiO is irradiated with German Rofin-sina RS2500 laser 3 Ceramic body; firstly, within 50s, continuously increase the laser power density from 0 to the sintering power density value of 528w / cm 2 , the rotation speed of the rotary table is 90° / s, after 30s of sintering time, then reduce the laser power to zero within 50s; the laser is turned off. The sample cools down to porcelain.
Embodiment 3
[0029] Example 3: BaTiO is irradiated with German Rofin-sina RS2500 laser 3 Ceramic body; firstly, within 50s, continuously increase the laser power density from 0 to the sintering power density value of 590w / cm 2 , the rotation speed of the rotary table is 90° / s, after 25s of sintering time, then reduce the laser power to zero within 50s; the laser is turned off. The sample cools down to porcelain.
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