Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Double active ion doped bicrystal glass ceramic fluorescence temperature probe materials and preparation method thereof

A technology for activating ions and fluorescence temperature, applied in the field of solid luminescent materials, can solve problems such as unfavorable fluorescent signal recognition, inability to meet high-precision measurement, etc., and achieve the effect of simple preparation process and low cost

Active Publication Date: 2015-12-30
HANGZHOU DIANZI UNIV
View PDF1 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

to Er 3+ Ionic 2 h 11 / 2 and 4 S 3 / 2 Take the thermally coupled energy level pair as an example. The emission peaks of the two are located at about 535 nm and 550 nm respectively, and the distance between them is about 15 nm. Since the two emission peaks are too close, they may even overlap, which is not conducive to the two fluorescence signals. identification, unable to meet the needs of high-precision measurement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Double active ion doped bicrystal glass ceramic fluorescence temperature probe materials and preparation method thereof
  • Double active ion doped bicrystal glass ceramic fluorescence temperature probe materials and preparation method thereof
  • Double active ion doped bicrystal glass ceramic fluorescence temperature probe materials and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] Example 1: 4molSiO 2 , 2.2molAl 2 o 3 , 1.2molNaF, 0.5molLiF, 1.09molGdF 3 , 0.995molGa 2 o 3 , 0.01molEuF 3 and 0.005molCr 2 o 3 The powder is accurately weighed and placed in an agate mortar, ground for more than half an hour to make it evenly mixed, then placed in a crucible, heated to 1600°C in a program-controlled high-temperature box-type resistance furnace, and then kept for 0.5 hours, then, the glass The melt is quickly poured into a preheated copper mold at 300°C and formed; the obtained precursor glass is placed in a resistance furnace and kept at 750°C for 1 hour to obtain 40SiO 2 : 22Al 2 o 3 : 12NaF : 5LiF : 9.95Ga 2 o 3 : 10.9GdF 3 : 0.1EuF 3 : 0.05Cr 2 o 3 (molar ratio) light green transparent glass ceramics.

[0029] Transmission electron microscopy studies show that there are a large number of GdF with a size of 30-40nm in the glass ceramics. 3 and 3~5nm Ga 2 o 3 The particles of the two crystal phases are uniformly distributed in the...

example 2

[0030] Example 2: 4molSiO 2 , 2.2molAl 2 o 3 , 1.2molNaF, 0.5molLiF, 1.0999molGdF 3 , 0.8molGa 2 o 3 , 0.0001molEuF 3 and 0.2molCr 2 o 3 The powder is accurately weighed and placed in an agate mortar, ground for more than half an hour to make it evenly mixed, then placed in a crucible, heated to 1600°C in a program-controlled high-temperature box-type resistance furnace, and then kept for 0.5 hours, then, the glass The melt is quickly poured into a preheated copper mold at 300°C for forming; the obtained precursor glass is placed in a resistance furnace, and kept at 750°C for 2 hours to obtain 40SiO 2 : 22Al 2 o 3 : 12NaF : 5LiF : 8Ga 2 o 3 : 10.999GdF 3 : 0.001EuF 3 : 2Cr 2 o 3 (molar ratio) light green transparent glass ceramics. The glass-ceramic contains a large amount of GdF 3 and Ga 2 o 3 Two crystal phase particles. The temperature-dependent photoemission spectrum of the sample was measured with a fluorescence spectrometer, and the Eu 3+ and Cr 3+ ...

example 3

[0031] Example 3: 4molSiO 2 , 2.2molAl 2 o 3 , 1.2molNaF, 0.5molLiF, 0.9molGdF 3 , 0.9999molGa 2 o 3 , 0.2molEuF 3 and 0.0001molCr 2 o 3 The powder is accurately weighed and placed in an agate mortar, ground for more than half an hour to make it evenly mixed, then placed in a crucible, heated to 1600°C in a program-controlled high-temperature box-type resistance furnace, and then kept for 0.5 hours, then, the glass The melt is quickly poured into a preheated copper mold at 300°C for forming; the obtained precursor glass is placed in a resistance furnace, and kept at 750°C for 2 hours to obtain 40SiO 2 : 22Al 2 o 3 : 12NaF: 5LiF: 9.999Ga 2 o 3 : 9GdF 3 : 2EuF 3 : 0.001Cr 2 o 3 (molar ratio) light green transparent glass ceramics. The glass-ceramic contains a large amount of GdF 3 and Ga 2 o 3 Two crystal phase particles. The temperature-dependent photoemission spectrum of the sample was measured with a fluorescence spectrometer, and the Eu 3+ and Cr 3+ Dua...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Sizeaaaaaaaaaa
Sensitivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses double active ion doped bicrystal glass ceramic fluorescence temperature probe materials and a preparation method thereof. The glass ceramic comprise components as follows: 30 mol%-50 mol% of SiO2,15 mol%-30 mol% of Al2O3, 0-20 mol% of NaF, 0-20 mol% of LiF, 0-15 mol% of ZnO, 5 mol%-15 mol% of ReF3, 5 mol%-20 mol% of Ga2O3, 0.001 mol%-2 mol% of LnF3 and 0.001 mol%-2 mol% of TM compounds, wherein Ln is the rare earth ion luminescence center; TM is the transition metal ion luminescence center. The glass ceramic is prepared with a melt quenching method and through follow-up crystallization and heat treatment. The glass ceramic has strong temperature-dependent emission intensity and can be taken as a self-correcting fluorescence temperature detecting material, and the sensitivity at the highest temperature can reach 8% K<-1>.

Description

technical field [0001] The invention relates to the field of solid luminescent materials, in particular to a dual crystal phase glass-ceramic composite material which can be used as a self-correcting fluorescent temperature probe and a preparation method thereof. Background technique [0002] Temperature is the most basic thermodynamic parameter. Accurate measurement of temperature is of great significance for exploring many important physical phenomena and application research of new materials. Traditional contact temperature measurement is often limited in spatial resolution and response time due to the need for heat exchange and thermal balance. Even when the measured object is relatively small, the measurement results can no longer reflect the actual temperature of the measured object. temperature. [0003] In recent years, a novel non-contact temperature detection technology—fluorescence temperature detection technology has attracted extensive attention from researche...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C03C10/16C03C6/06
Inventor 陈大钦万忠义刘珅周洋
Owner HANGZHOU DIANZI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com