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Anhydrous oxyhalide tellurite glass and preparation method thereof

An oxyhalotellurite and glass technology, applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problem of not increasing the phonon energy, and achieve the improvement of anti-devitrification ability, enhanced luminescence and laser output. Effect

Active Publication Date: 2017-07-25
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

It can meet the requirements of improving glass anti-devitrification ability and not increasing phonon energy at the same time

Method used

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  • Anhydrous oxyhalide tellurite glass and preparation method thereof
  • Anhydrous oxyhalide tellurite glass and preparation method thereof
  • Anhydrous oxyhalide tellurite glass and preparation method thereof

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with specific examples.

[0027] Table 1 provides the glass formula of 7 specific examples of the present invention:

[0028] Table 1

[0029]

[0030]

[0031] The present invention provides a kind of anhydrous oxyhalogen tellurate glass, and provides the preparation method of the anhydrous oxyhalogen tellurate glass, refer to figure 1 The preparation process comprises the following steps:

[0032] 1), according to the proportioning relationship of Table 1 Example 1, take the raw materials, add 2% ammonium bifluoride by weight, and mix evenly;

[0033] 2) Dry the mixture in a vacuum oven at 110°C for 3 hours;

[0034] 3) Put the raw material into an alumina crucible and melt it in a furnace at 850°C;

[0035] 4) After the glass is melted, use a quartz tube to feed dry high-purity oxygen into the molten glass, the flow rate of oxygen is 0.5L / min, and the time is 3 hours;

[0036] 5) Pour the...

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Abstract

The invention discloses anhydrous oxyhalide tellurite glass and a preparation method thereof. The anhydrous oxyhalide tellurite glass comprises 60 to 85 mol% of TeO2, 5 to 20 mol% of MO, 0 to 5 mol% of R2O and 1 to 20 mol% of XY3, wherein M represents one or more of Mg, Ca, Sr, and Ba, R represents one or more of Li, Na and K, X represents one or more of Ga, In and Zr and Y represents F or Cl). The oxyhalide tellurite glass is prepared by a high temperature melting method, the glass transition temperature is between 340 to 390 DEG C and a glass stability parameter delta T is greater than or equal to 85 DEG C. The preparation method adopts dehydration processes such as raw material drying, ammonium bifluoride fluorination reaction, high temperature melting and feeding of oxidizing dry gas so that the content of the hydroxyl group in the glass is 0.005 cm<-1>. The anhydrous oxyhalide tellurite glass is a good candidate material for preparation of infrared optical fibers.

Description

technical field [0001] The invention designs an anhydrous oxyhalogen tellurate glass and a preparation method thereof, in particular an anhydrous oxyhalogen tellurate glass with good glass-forming performance and low phonon energy and a preparation method thereof. Background technique [0002] Tellurite glass has high refractive index, low phonon energy, strong rare earth doping ability, and infrared cut-off wavelength of 6.6 μm. Compared with fluoride glass and chalcogenide glass, it has good chemical stability, high thermal stability, and anti-devitrification. Ability and other advantages. It has been verified as an excellent matrix material for mid-infrared highly nonlinear structural fibers and rare earth-doped fiber lasers. In recent years, a large number of research results on tellurate and oxyhalogen tellurate glasses have been published in the form of scientific papers and granted patents, but there are still shortcomings. [0003] The hydroxyl group seriously affe...

Claims

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Application Information

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IPC IPC(8): C03C3/23C03C4/10C03B5/16
CPCC03B5/16C03C3/23C03C4/10
Inventor 薛天锋黎宇唐景平廖梅松胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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