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Method for preparation of luminescent glass ceramic with low-melting point glass powder

A low-melting glass, luminescent glass technology, applied in glass manufacturing equipment, glass molding, semiconductor devices of light-emitting elements, etc., can solve problems such as high toxicity, and achieve the effect of avoiding thermal degradation

Active Publication Date: 2019-05-07
BINHAI IND RES INST OF TIANJIN UNIV CO LTD
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  • Abstract
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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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  • Method for preparation of luminescent glass ceramic with low-melting point glass powder
  • Method for preparation of luminescent glass ceramic with low-melting point glass powder
  • Method for preparation of luminescent glass ceramic with low-melting point glass powder

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Embodiment Construction

[0037] 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 method for preparation of luminescent glass ceramic with low-melting point glass powder. The method includes: mixing bulk drugs evenly, and performing melting at 300-700DEG Cfor 15-90min to obtain molten glass; subjecting the molten glass at 300-700DEG C to quenching, and performing natural cooling to room temperature to obtain bulk glass; crushing the bulk glass, and putting the product into a ball mill for ball milling to obtain low-melting point glass powder. The low-melting point glass powder obtained by the method provided by the invention has low glass phase transition temperature, which is adjustable in the range of 200-500DEG C, is suitable for making of seal glass and vacuum components and packaging of LED, and is especially suitable for making of luminescent glass ceramic with phosphor powder material. The luminescent glass ceramic is especially suitable for laser illumination. Glass ceramic molds and sinters at a low temperature, can effectively avoid the thermal degradation of phosphor powder at high temperature, and has important application value in the field of laser lighting.

Description

[0001] This application is a divisional application of the parent application “Low-melting point glass powder and glass ceramics for laser lighting made thereof”, the application number of the parent application is 2016110912313, and the application date is December 01, 2016. technical field [0002] The technical field of special glass production and manufacturing of the present invention, specifically relates to a method for preparing luminous glass ceramics with low melting point glass powder. Background technique [0003] 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 ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C12/00C03C6/06C03C8/24C03C14/00C03B19/06F21K9/90F21V19/00F21Y115/10
CPCC03B32/02C03C4/12C03C10/16C03C12/00F21K9/90F21V19/002
Inventor 陈静静毛智勇王达健杨超高文宇
Owner BINHAI IND RES INST OF TIANJIN UNIV CO LTD
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