Bismuthate glasls and preparing method thereof

A bismuth salt glass and glass technology, applied in the field of bismuth salt glass and its preparation, can solve the problems of poor glass stability and processing difficulties, and achieve the effects of high transition temperature, high stability, and good infrared transmission ability

Inactive Publication Date: 2005-02-23
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the glass of this system has poor stability and is difficult to process.

Method used

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  • Bismuthate glasls and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Composition as in Table 1 1 # Shown, specific preparation method comprises the following steps:

[0035] ①: Calculate the weight percent of the glass according to the mole percent (mol%) of the glass composition, then weigh the raw materials and mix them uniformly;

[0036] ②: Put the mixture into a platinum crucible and melt it in a silicon carbon rod electric furnace at 1000 ° C. The length of melting time is determined according to the amount of raw materials;

[0037] ③: After the glass is melted, the temperature is lowered to 950°C, and high-purity oxygen is introduced to remove water. The aeration time depends on the amount of raw materials;

[0038] ④: Stop the oxygen flow, raise the temperature of the molten glass to 1000°C for clarification and homogenization, the time also depends on the amount of raw materials, and then pour the molten glass into the preheated mold;

[0039] ⑤: Quickly put the glass into the muffle furnace whose temperature has been raised ...

Embodiment 2

[0044] Composition as in Table 1 2 # Shown, specific preparation method comprises the following steps:

[0045] ①: Calculate the weight percent of the glass according to the mole percent (mol%) of the glass composition, then weigh the raw materials and mix them uniformly;

[0046] ②: Put the mixture into a platinum crucible and melt it in a silicon carbon rod electric furnace at 1000 ° C. The length of melting time is determined according to the amount of raw materials;

[0047] ③: After the glass is melted, the temperature is lowered to 950°C, and high-purity oxygen is introduced to remove water. The aeration time depends on the amount of raw materials;

[0048] ④: Stop the oxygen flow, raise the temperature of the molten glass to 1000°C for clarification and homogenization, the time also depends on the amount of raw materials, and then pour the molten glass into the preheated mold;

[0049] ⑤: Quickly put the glass into the muffle furnace whose temperature has been raised ...

Embodiment 3

[0054] Composition as in Table 1 3 # Shown, specific preparation method comprises the following steps:

[0055] ①: Calculate the weight percent of the glass according to the mole percent (mol%) of the glass composition, then weigh the raw materials and mix them uniformly;

[0056] ②: Put the mixture into a platinum crucible and melt it in a silicon carbon rod electric furnace at 1000 ° C. The length of melting time is determined according to the amount of raw materials;

[0057] ③: After the glass is melted, the temperature is lowered to 950°C, and high-purity oxygen is introduced to remove water. The aeration time depends on the amount of raw materials;

[0058] ④: Stop the oxygen flow, raise the temperature of the molten glass to 1000°C for clarification and homogenization, the time also depends on the amount of raw materials, and then pour the molten glass into the preheated mold;

[0059] ⑤: Quickly put the glass into the muffle furnace that has been heated to 398°C. Aft...

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Abstract

A sort of glass with bismuthate and method of preparation. Percents of every part is as follow, BiO3, 20-80mol%; PbO, 10-70mol%; Sum of SrO and M2O(M is Li or Na), 10-20mol%, stability coefficient is as follow, delta T=80deg.C, delta Tmax=195deg.C, infrared cut-off wavelength>8.1mum and reaching max at 8.5mum. Host material for upconversion and infrared transmitting material.

Description

technical field [0001] The invention relates to bismuth salt glass, in particular to a bismuth salt glass and a preparation method thereof. Background technique [0002] Bi 2 o 3 , PbO and other heavy metal glasses with a content of more than 50% by mole fraction have attracted people's attention for many years due to their high refractive index, high dielectric constant and wide infrared transmission range. Systematic studies have shown that the phonon energy in this glass structure is low, and it is suitable as a parent material for rare earth luminescence, so this glass is considered to be one of the candidate photonic functional materials for improving the upconversion efficiency of rare earth (see previous Technology Daniel J. Coleman, Stuart D. Jackson, Paul Golding, Terence A. King. Measurements of the spectroscopic and energy transfer parameters for Er 3+ -doped and Er 3+ , Pr 3+ -codoped PbO-Bi 2 o 3 -Ga 2 o 3 glasses, J. Opt. Soc. Am. B 19(2002) 2927-2929...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/12C03C4/10
CPCC03C4/10C03C3/12C03C3/122
Inventor 孙洪涛胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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