A kind of preparation method of barium chloroborate whisker
A barium chloroborate and whisker technology, which is applied in the field of preparation of barium chloroborate whiskers, can solve the problems of preparation and performance of barium chloroborate whiskers that have not been seen yet, and achieve a rich variety, complete crystal structure and high yield. Effect
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Embodiment 1
[0019] Embodiment 1 A kind of preparation method of barium chloroborate whisker, comprises the following steps:
[0020] (1) 6.11g barium-containing compound——BaCl 2 2H 2 O, 5.96g boron-containing compound——Na 2 B 4 o 7 10H 2 O and 12.07g of flux——KCl were mixed evenly and then ground to a particle size of less than 60 mesh to obtain a mixture.
[0021] The molar ratio of Ba in the barium-containing compound to B in the boron-containing compound is 1:2.5, and the mass ratio of the sum of the total mass of the barium-containing compound and the boron-containing compound to the flux is 1:1.
[0022] (2) Put the mixture in a corundum crucible, put it into a high-temperature furnace, raise the temperature to 690°C at a heating rate of 5-10°C / min, heat at a constant temperature for 4 hours, and cool naturally to room temperature to obtain a sintered product.
[0023] (3) Put the sintered material into deionized water, soak for 2 to 6 hours, filter, wash with deionized water, ...
Embodiment 2
[0024] Embodiment 2 A kind of preparation method of barium chloroborate whisker, comprises the following steps:
[0025] (1) 6.31g barium-containing compound—Ba(OH) 2 ·8H 2 O, 4.95g boron-containing compound——H 3 BO 3 Mix with 39.41g of flux—NaCl and grind until the particle size is less than 60 mesh to obtain a mixture.
[0026] The molar ratio of Ba in the barium-containing compound to B in the boron-containing compound is 1:4, and the mass ratio of the sum of the total mass of the barium-containing compound and the boron-containing compound to the flux is 1:3.5.
[0027] (2) Put the mixture in a corundum crucible, put it into a high-temperature furnace, raise the temperature to 750°C at a heating rate of 5-10°C / min, heat at a constant temperature for 15 hours, and cool naturally to room temperature to obtain a sintered product.
[0028] (3) Put the sintered material into deionized water, soak for 2 to 6 hours, filter, wash with deionized water, and dry at 100 to 200°C t...
Embodiment 3
[0029] Embodiment 3 A kind of preparation method of barium chloroborate whisker, comprises the following steps:
[0030] (1) 5.23g barium-containing compound—Ba(NO 3 ) 2 2H 2 O, 5.72g boron-containing compound——Na 2 B 4 o 7 10H 2 O and 27.38g of flux——KCl were mixed evenly and then ground to a particle size of less than 60 mesh to obtain a mixture.
[0031] The molar ratio of Ba in the barium-containing compound to B in the boron-containing compound is 1:3, and the mass ratio of the sum of the total mass of the barium-containing compound and the boron-containing compound to the flux is 1:2.5.
[0032] (2) Put the mixture in a corundum crucible, put it into a high-temperature furnace, raise the temperature to 720°C at a heating rate of 5-10°C / min, heat at a constant temperature for 8 hours, and cool naturally to room temperature to obtain a sintered product.
[0033] (3) Put the sintered material into deionized water, soak for 2 to 6 hours, filter, wash with deionized wa...
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