Mid-infrared anhydrous tellurate glass and preparation method thereof

A tellurite glass, infrared technology, applied in the field of glass and its preparation, can solve the problems of difficult optical fiberization, easy to be corroded by moisture, low thermal damage threshold, etc.

Inactive Publication Date: 2012-07-11
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

Glass materials that can be used in the mid-infrared band, fluoride glass is a typical representative, which is mainly due to its low phonon energy (450cm -1 ), but at the same time, fluoride glass also has inherent defects, such as brittleness and fragility, low tensile strength, easy to be eroded by moisture, poor chemical stability, low thermal damage threshold, difficult to fiberize, and low operating temperature of the fiber body (≤150℃) etc.

Method used

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  • Mid-infrared anhydrous tellurate glass and preparation method thereof
  • Mid-infrared anhydrous tellurate glass and preparation method thereof
  • Mid-infrared anhydrous tellurate glass and preparation method thereof

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Embodiment Construction

[0030] The invention provides a kind of mid-infrared anhydrous tellurate glass, the composition of the mid-infrared anhydrous tellurate glass includes: 55-80mol% TeO 2 And 15~45mol% ZnF 2 , in order to increase the mechanical strength of its material and increase its rare earth solubility to increase the practical application range, the composition of the mid-infrared anhydrous tellurate glass provided by the present invention also includes 5-20mol% of sodium ion compounds, such as Na 2 The unit of X is all possible, such as the commonly used Na 2 f 2 or Na 2 CO 3 .

[0031] Among the above components, the preferred components of the present invention include: 57-75mol% TeO 2 , 20~35mol% ZnF 2 And 5 ~ 15mol% of sodium ion compounds; more preferred components include: 60 ~ 70mol% of TeO 2 , 25~35mol% ZnF 2 And 5-10mol% sodium ion compound.

[0032] A sodium ion compound can be Na 2 f 2 or Na 2 CO 3 , or a mixture of the two; no matter which, as long as the compound...

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Abstract

The invention relates to mid-infrared anhydrous tellurate glass and a preparation method of the tellurate glass. The mid-infrared anhydrous tellurate glass is prepared by the components of: 55-80mol% of TeO2 and 20-45mol% of ZnF2. The mid-infrared anhydrous tellurate glass provided by the invention is anhydrous, capable of satisfying requirements of mid-infrared window glass and signal transmission in an atmospheric window range of 0.3-5 micrometers and expected to be widely applied to national defense industry and economic construction.

Description

technical field [0001] The invention relates to a glass and a preparation method thereof, in particular to a mid-infrared anhydrous tellurate glass and a preparation method thereof. Background technique [0002] Infrared window glass and infrared signal transmission optical fiber have broad application prospects in the fields of national security and national defense construction, astrophysical detection, and spectroscopy research. Glass materials that can be used in the mid-infrared band, fluoride glass is a typical representative, which is mainly due to its low phonon energy (450cm -1 ), but at the same time, fluoride glass also has inherent defects, such as brittleness and fragility, low tensile strength, easy to be eroded by moisture, poor chemical stability, low thermal damage threshold, difficult to fiberize, and low operating temperature of the fiber body (≤150°C) and so on. In comparison, no (less) water-free tellurite glass has low phonon energy (600-800cm -1 ) a...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/23
Inventor 林傲祥周志广何建丽湛欢
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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