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

Transparent pyroelectric ceramic and preparing process thereof

A pyroelectric ceramic and transparent technology, applied in the field of transparent pyroelectric ceramics and its preparation, can solve problems such as difficulty in meeting practical application requirements, and achieve the effect of great application value and simple process

Inactive Publication Date: 2009-04-08
ZHEJIANG UNIV
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are few such materials that have been developed so far, and it is difficult to meet the needs of practical applications.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] First, PbO, ZrO with a purity of more than 99% 2 ,TiO 2 , ZnO, Nb 2 o 5 and La 2 o 3 Weigh according to the stoichiometric ratio of the above expression, grind and mix with a mortar, and pre-calcine in the atmosphere at 800° C. for 1 hour to synthesize powder. After the powder is loaded into a cylindrical graphite mold, the spark plasma sintering system is used to sinter in vacuum at 900°C to obtain a dense ceramic sintered body, and the sintered body is heat-treated at 900°C in air for 1 hour to obtain a transparent pyroelectric ceramic.

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
transmittivityaaaaaaaaaa
Login to View More

Abstract

The present invention discloses transparent pyroelectric ceramic in the expression of (1-x)PbO.x / 2La2O3.0.90ZrO2.0.025TiO2.0.025ZnO.0.025Nb2O5, where, x is 0-0.02. The transparent pyroelectric ceramic is prepared with PbO, ZrO2, TiO2, ZnO, Nb2O5 and La2O3 in the stoichoimetric ratio and through a discharging plasma sintering process, which includes the steps of grinding and mixing the materials, pre-baking in atmosphere at 800 deg.c for 1-3 hr to obtain powder, filling the powder into graphite mold, vacuum sintering in a discharging plasma sintering system at 800-1000 deg.c to obtain dense ceramic sintering body, and heat treatment in the air at 800-1200 deg.c for 1-3 hr. The transparent pyroelectric ceramic of the present invention has excellent pyroelectric performance and high light transmittance, and may be used in photoelectronic device and thermal photoelectronic device in the electronic industry field.

Description

technical field [0001] The invention relates to a transparent pyroelectric ceramic used for components such as photothermoelectric devices and pyroelectric detectors in the electronic industry and a preparation method thereof. Background technique [0002] Pyroelectric ceramics are widely used in devices such as infrared detectors, thermal imaging systems, and direct conversion of thermoelectric energy, while transparent electronic ceramics are widely used in optoelectronic devices. In recent years, the development of novel photothermoelectric devices has drawn more and more attention to transparent pyroelectric ceramics. However, there are few such materials that have been developed so far, and it is difficult to meet the needs of practical applications. Contents of the invention [0003] The purpose of the present invention is to provide a new transparent pyroelectric ceramic with good pyroelectric performance and good light transmittance and its preparation method for ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/499C04B35/48C04B35/64
Inventor 吴勇军陈湘明
Owner ZHEJIANG 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