Homium oxide magneto-optical transparent ceramics with high Verdet constant and high optical quality prepared by a uniform nickel ion doping technique
A technology of uniform doping and optical quality, applied in the field of preparation of rare earth oxide magneto-optical transparent ceramics, can solve the problems of unfavorable magneto-optical performance, improvement, limited capacity, etc. Effect
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Embodiment 1
[0037] A technique for uniformly doping nickel ions to prepare holmium oxide magneto-optical transparent ceramics with high Feld constant and high optical quality, comprising the following steps:
[0038] Step 1: Prepare a holmium nitrate solution with a concentration of 0.2mol / L, then add nickel chloride hexahydrate solid into the holmium nitrate solution to dissolve and stir evenly, wherein the doping amount of nickel ions is controlled to a molar ratio of 2.0%; commercially available Sodium hydroxide solid was dissolved in distilled water to obtain a sodium hydroxide solution with a concentration of 1.0 mol / L.
[0039] Step 2: Add 1.0 mol / L sodium hydroxide dropwise to the mixed solution of nickel chloride and holmium nitrate at a temperature of 2°C to obtain a light green precipitated precursor, and control the pH of the titration end point to 7.8. Continue to age for 0.5h after the titration, and the product is washed by centrifugation to remove soluble impurities;
[00...
Embodiment 2
[0044] This embodiment proposes a uniform nickel ion doping technique to prepare holmium oxide magneto-optical transparent ceramics with high Verdet constant and high optical quality, which includes the following steps:
[0045] Step 1: Prepare a holmium nitrate solution with a concentration of 0.075mol / L, then add nickel chloride hexahydrate solid into the holmium nitrate solution to dissolve and stir evenly, wherein the doping amount of nickel ions is controlled at a molar ratio of 1.0%; commercially available Sodium hydroxide solid was dissolved in distilled water to obtain a sodium hydroxide solution with a concentration of 0.5 mol / L.
[0046] Step 2: At a temperature of 3°C, 0.5 mol / L sodium hydroxide was added dropwise to the mixed solution of nickel chloride and holmium nitrate to obtain a light green precipitated precursor, and the pH of the titration end point was controlled to be 8.6. Continue aging for 1.5h after the titration, and the product is washed by centrifug...
Embodiment 3
[0051] This embodiment proposes a uniform nickel ion doping technique to prepare holmium oxide magneto-optical transparent ceramics with high Verdet constant and high optical quality, which includes the following steps:
[0052] Step 1: Prepare a holmium nitrate solution with a concentration of 0.06mol / L, then add nickel chloride hexahydrate solid into the holmium nitrate solution to dissolve and stir evenly, wherein the doping amount of nickel ions is controlled to a molar ratio of 0.5%; commercially available Sodium hydroxide solid was dissolved in distilled water to obtain a sodium hydroxide solution with a concentration of 0.2 mol / L.
[0053] Step 2: At a temperature of 10°C, 0.2 mol / L sodium hydroxide was added dropwise to the mixed solution of nickel chloride and holmium nitrate to obtain a light green precipitated precursor, and the pH of the titration end point was controlled to be 8.2. Continue to age for 6 hours after the titration, and the product is washed by centr...
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