Method for preparing electric ferroelectric thick film by liquid phase epitaxy
A technology of ferroelectric thick film and liquid phase epitaxy, which is applied in the direction of liquid phase epitaxial layer growth, chemical instruments and methods, circuits, etc., to achieve the effect of optimized performance and simple process
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[0016] Example 1:
[0017] 1. According to the stoichiometric ratio of 0.91PbZn 1 / 3 Nb 2 / 3 O 3 -0.09PbTiO 3 Carry out oxide raw material batching;
[0018] 2. Ball mill in an agate ball mill for 6 hours, and calcine at 900°C for 4 hours;
[0019] 3. The calcined powder is uniformly mixed according to 50wt% PZNT and 50wt% lead oxide and pressed into tablets;
[0020] 4. Put the compressed powder into a sealed crucible, heat up to 1150℃, keep it for 10 hours;
[0021] 5. Cool down to 1080°C, put in the strontium titanate seed crystal substrate from the top and perform epitaxial growth to obtain PZNT ferroelectric thick film material (PZNT thick film with different thickness can be obtained according to the different growth time).
Example Embodiment
[0022] Example 2:
[0023] 1. According to the stoichiometric ratio of 0.93PbZn 1 / 3 Nb 2 / 3 O 3 -0.07PbTiO 3 Carry out oxide raw material batching;
[0024] 2. Ball mill in an agate ball mill for 7 hours and calcine at 900°C for 6 hours;
[0025] 3. The calcined powder is uniformly mixed according to 40wt% PZNT and 60wt% lead oxide and pressed into tablets;
[0026] 4. Put the compressed powder into a sealed crucible, and heat up to 1100°C for 10 hours;
[0027] 6. Cool down to 1060°C, put the strontium titanate seed crystal substrate from the top for epitaxial growth to obtain PZNT ferroelectric thick film material (PZNT thick film with different thickness can be obtained according to the different growth time).
Example Embodiment
[0028] Example 3:
[0029] 1. According to the stoichiometric ratio of 0.65PbMg 1 / 3 Nb 2 / 3 O 3 -0.35PbTiO 3 Carry out oxide raw material batching;
[0030] 2. Ball mill in an agate ball mill for 8 hours, and calcine at 900°C for 8 hours;
[0031] 3. The calcined powder is uniformly mixed according to 50wt% PMNT and 50wt% lead oxide and pressed into tablets;
[0032] 4. Put the compressed powder into a sealed crucible, heat up to 1180℃ and keep it warm for 20 hours;
[0033] 5. Cool down to 1100°C, put in the strontium titanate seed crystal substrate from the top for epitaxial growth to obtain PMNT ferroelectric thick film material (PMNT thick film with different thickness can be obtained according to the different growth time).
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