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Low-melting point glass powder and glass ceramics for laser lighting made therefrom

A technology of low-melting glass and glass frit, which is applied to lighting devices, lighting and heating equipment, components of lighting devices, etc., can solve the problems of high toxicity and avoid thermal deterioration

Active Publication Date: 2019-05-07
BINHAI IND RES INST OF TIANJIN UNIV CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

U.S. Patent No. P5153151 discloses a phosphate sealing glass with a transition temperature of 300 to 340°C, but the glass has a disadvantage of containing highly toxic Tl 2 o

Method used

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  • Low-melting point glass powder and glass ceramics for laser lighting made therefrom
  • Low-melting point glass powder and glass ceramics for laser lighting made therefrom
  • Low-melting point glass powder and glass ceramics for laser lighting made therefrom

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Embodiment Construction

[0035] In a specific embodiment of the invention, SnF 2 Purchased from Hubei Henglvyuan Technology Co., Ltd., with a purity of 99.5%; other drugs were purchased from Shanghai Aladdin Biochemical Technology Co., Ltd., with an analytical purity. SnF 2 Introduced by stannous fluoride, P 2 o 5 Introduced by ammonium dihydrogen phosphate, glass powder phase transition temperature adjustment component B 2 o 3 Introduced by boric acid, V 2 o 5 Introduced by ammonium metavanadate, others are introduced by corresponding oxides. The model of the differential scanning calorimeter is the Q2000 model of TA Instruments Company of the United States. YAG: Ce 3+ Yellow phosphor was purchased from Shenzhen Xingliangli Technology Co., Ltd. CaAlSiN 3 : Eu 2+ The red phosphor was prepared according to the following literature: [1] Pei Haoyu. Preparation and performance research of Eu-doped CaAlSiN_3 and YAG red phosphor [D]. Nanchang University, 2015. When the glass liquid is cooled an...

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Abstract

The invention discloses a low-melting-point glass powder and glass ceramics for laser lighting produced therefrom. The preparation method of the low-melting-point glass powder is as follows: uniformly mixing raw materials and melting at 300-700°C for 15-90 minutes to obtain molten glass ; Quenching the molten glass at 300-700°C, and naturally cooling to room temperature to obtain bulk glass; pulverizing the bulk glass and putting it into a ball mill to obtain low-melting-point glass powder. The low-melting-point glass powder of the present invention has Low glass phase transition temperature, and its glass phase transition temperature can be adjusted in the range of 200-500 ° C, suitable for the production of sealing glass and vacuum components and LED packaging, especially suitable for the production of luminous glass with phosphor materials Ceramics, the luminescent glass ceramics are especially suitable for laser lighting. Forming and sintering glass ceramics at a relatively low temperature can effectively avoid thermal degradation of phosphors at high temperatures, and has important application value in the field of laser lighting.

Description

technical field [0001] The technical field of special glass production and manufacture of the present invention, in particular, relates to a low melting point glass powder and the glass ceramics for laser lighting produced therefrom. Background technique [0002] Low-melting point glass refers to a special glass whose glass transition temperature is significantly lower than ordinary glass, and can be widely used as a bonding phase in sealing glass and electronic paste. With the rapid development of the electronics industry, low melting point glass is widely used in the sealing and protection of electronic components and display devices, such as sealing vacuum fluorescent display (VFD), plasma display (PDP) and cathode ray tube (CRT) and other vacuum devices. In terms of LED packaging and its white light adjustment, low-melting glass is needed to replace organics for packaging. Glass ceramics for LED / laser (LD) lighting are also in urgent need of low melting point glass pow...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C12/00C03C10/16C03B32/02C03C4/12F21K9/90F21V19/00F21Y115/30
CPCC03B32/02C03C4/12C03C10/16C03C12/00F21K9/90F21V19/002
Inventor 王达健高文宇毛智勇陈静静田华杨超安娜史远东
Owner BINHAI IND RES INST OF TIANJIN UNIV CO LTD
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