Chlorine barium borate, chlorine barium borate nonlinear optical crystal, and preparation method and uses of chlorine barium borate nonlinear optical crystal
A nonlinear optics, barium chloroborate technology, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve the problems of high price, long growth period, serious layered growth habit, etc.
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Embodiment 1
[0039] According to the reaction formula: 13BaCO 3 +BaCl 2 +6H 3 BO 3 →2Ba 7 B 3 o 11 Cl+13CO 2 ↑+9H 2 O ↑ Synthesis of Ba 7 B 3 o 11 Cl compounds:
[0040] BaCO 3 , BaCl 2 、H 3 BO 3 Weigh it into a mortar with a molar ratio of 9:1:6, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, put it into a muffle furnace, slowly raise the temperature to 650°C, and keep the temperature constant for 24 hours. Cool to room temperature, take it out and put it into the muffle furnace after the second grinding, then raise the temperature to 750°C, keep the temperature for 24 hours, cool to room temperature, take it out and put it into the muffle furnace after the third grinding, and then raise the temperature to 900°C ℃, constant temperature for 48 hours, take out the single-phase polycrystalline powder of barium chloroborate compound obtained by grinding, and carry out X-ray analysis on the product, the obtained X-ray spectrum i...
Embodiment 2
[0047] According to the reaction formula: 13Ba(NO 3 ) 2 +BaCl 2 +6H 3 BO 3 →2Ba 7 B 3 o 11 Cl+26NO 2 ↑+6.5O 2 +9H 2 O ↑ Synthesis of Ba 7 B 3 o 11 Cl compounds:
[0048] Ba(NO 3 ) 2 , BaCl 2 、H 3 BO 3 Weigh the raw materials directly according to the molar ratio of 9:1:6, and combine the weighed raw materials with the flux Na 2 O-H 3 BO 3 Mixed at a molar ratio of 1:4, where Na 2 O and H 3 BO 3 The molar ratio is 2:5, put it into an open platinum crucible of Φ80mm×80mm, heat up to a temperature of 850°C, and keep the temperature at a constant temperature for 60 hours to obtain a mixed melt, which is then cooled to a temperature of 815°C;
[0049] Preparation of barium chloroborate seed crystals: Slowly cool the obtained mixed melt to room temperature at a rate of 1.5°C / h, and spontaneously crystallize to obtain barium chloroborate seed crystals;
[0050] Ba will be obtained 7 B 3 o 11 The Cl seed crystal is fixed on the seed rod, and the seed crystal...
Embodiment 3
[0054] According to the reaction formula: 13BaO+BaCl 2 +6H 3 BO 3 →2Ba 7 B 3 o 11 Cl+9H 2 O ↑ Synthesis of Ba 7 B 3 o 11 Cl compounds:
[0055] BaO, BaCl 2 、H 3 BO 3 Put it into a mortar with a molar ratio of 9:1:6, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, press it tightly, put it in a muffle furnace, and slowly raise the temperature to 550°C, keep the temperature constant After 24 hours, take out the crucible after cooling. At this time, the sample is relatively loose. Then take out the sample and grind it evenly, then put it in the crucible, keep the temperature in the muffle furnace at 900°C for another 48 hours, take it out, and put it in the mortar Ba 7 B 3 o 11 Cl compound, carry out X-ray analysis to this product, gained X-ray spectrogram and barium chloroborate Ba 7 B 3 o 11 The X-ray spectra obtained by Cl single crystal structure are consistent;
[0056] The synthesized Ba 7 B 3 o 11 The m...
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