Low-temperature sintered ceramic material and preparation method thereof
A technology of low temperature sintering ceramics and sintering aids, applied in the field of dielectric ceramic preparation, can solve the problems of deviation of ceramic components from stoichiometric ratio, affecting mass production, PbO volatilization, etc., achieving comprehensive storage density and high storage efficiency, and good use value. and application prospects, the effect of sintering and densification
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Embodiment 1
[0027] Preparation of low-temperature sintered PLZT ceramics under the addition of 2wt% in embodiment 1
[0028] A preparation method of low-temperature sintered PLZT ceramics, first, PbO, La 2 o 3 , ZrO 2 and TiO 2 Weighing, because lead is volatile, so PbO should be added by 3% to 5%, then put into the ball mill tank, use agate balls to mill, dry, and prepare mixed dry material; sieve the mixed dry material, and then heat up to Pre-fire at 900°C, keep it warm for 2 to 3 hours, and cool with the furnace to obtain PLZT calcined powder; add 2wt%, 4wt%, and 6wt% flux to the calcined powder for secondary ball milling to mix evenly, and dry , sieved to obtain a powder; adding 5-10% PVB solution in the powder as a binder for dry pressing; cold isostatic pressing the preliminarily formed sample; Put it into the muffle furnace, first raise the temperature to 600°C at 3°C / min, then keep it warm for 4h to 5h to complete debinding; The temperature was raised to 920°C in min, and th...
Embodiment 2
[0031] Embodiment 2 Adding 4wt% flux to prepare low-temperature sintered PLZT ceramics
[0032] A preparation method of low-temperature sintered PLZT ceramics, first, PbO, La 2 o 3 , ZrO 2 and TiO 2 Weighing, because lead is volatile, so PbO should be added by 3% to 5%, then put into the ball mill tank, use agate balls to mill, dry, and prepare mixed dry material; sieve the mixed dry material, and then heat up to Pre-fire at 900°C, keep warm for 2 to 3 hours, and cool with the furnace to obtain PLZT pre-fired powder; add 4wt% flux to the pre-fired powder for secondary ball milling to mix evenly, dry, sieve, and make powder material; add PVB solution with a mass percentage of 5 to 10% in the powder as a binder, and perform dry pressing; cold isostatic pressing of the preliminary formed sample; put the final sample into a muffle furnace, First heat up to 600°C at 3°C / min, then keep warm for 4h to 5h to complete debinding; then heat up to T at a heating rate of 5°C / min 1 , a...
Embodiment 3
[0034] Example 3 Adding 6wt% flux to prepare low temperature sintered PLZT ceramics
[0035] A preparation method of low-temperature sintered PLZT ceramics, first, PbO, La 2 o 3 , ZrO2 and TiO 2 Weighing, because lead is volatile, so PbO should be added by 3% to 5%, then put into the ball mill tank, use agate balls to mill, dry, and prepare mixed dry material; sieve the mixed dry material, and then heat up to Pre-fire at 900°C, keep it warm for 2 to 3 hours, and cool with the furnace to obtain PLZT calcined powder; add 2wt% flux to the calcined powder and perform secondary ball milling to mix evenly. After drying, sieving, the prepared powder material; add PVB solution with a mass percentage of 5 to 10% in the powder as a binder, and perform dry pressing; cold isostatic pressing of the preliminary formed sample; put the final sample into a muffle furnace, First heat up to 600°C at 3°C / min, then keep warm for 4h to 5h to complete debinding; then heat up to T at a heating rat...
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