Yttrium tantalate high-temperature ceramic and preparation method thereof

A technology of high-temperature ceramics and yttrium tantalate, which is applied in the field of preparation of yttrium tantalate high-temperature ceramics and yttrium tantalate high-temperature ceramics, can solve problems such as affecting performance, and achieve the effects of low preparation cost, good ferroelasticity and good stability

Active Publication Date: 2016-11-30
KUNMING UNIV OF SCI & TECH
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] About yttrium tantalate (YTaO 4 ) high-temperature ceramic material preparation process, Wang Fuzhi and others used yttrium oxide (Y 2 o 3 ), tantalum oxide (Ta 2 o 5 ) as raw material, adding co-solvent (LiCO 3 ) sintered into yttrium tantalate (YTaO 4 ), but once sintered, the added co-

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
  • Yttrium tantalate high-temperature ceramic and preparation method thereof
  • Yttrium tantalate high-temperature ceramic and preparation method thereof
  • Yttrium tantalate high-temperature ceramic and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0031] Example 1

[0032] In this embodiment, a new type of high temperature resistance, oxidation resistance, and wear resistance yttrium tantalate (YTaO 4 1) The ceramic material and its preparation method specifically include the following steps:

[0033] Weigh 8.0611 g of yttrium oxide and 15.7749 g of tantalum oxide, mix them in absolute ethanol, and place them in a planetary ball mill (the rotating speed of the ball mill is 300, and the milling time is 180 min), and the ball milled solution is dried at 60°C After 24 hours, it was passed through a 100-mesh sieve, and then molded with a mold (holding pressure of 8MPa and holding time of 60min). After compression molding, it was pre-fired at 1100°C for 5 hours.

[0034] After calcining the raw materials for the first time, grind the mixture evenly, dissolve it in absolute ethanol again, and place it in a planetary ball mill (the speed of the ball mill is 300r / min, and the milling time is 180min). After drying at 60°C for 24 hours...

Example Embodiment

[0035] Example 2

[0036] In this embodiment, a new type of high temperature resistance, oxidation resistance, and wear resistance yttrium tantalate (YTaO 4 1) The ceramic material and its preparation method specifically include the following steps:

[0037] Weigh 8.0611g of yttrium oxide and 15.7749g of tantalum oxide, mix them in absolute ethanol, and place them in a planetary ball mill (the speed of the mill is 500r / min, and the milling time is 60min). The ball milled solution is heated at 80°C. After drying for 10 hours, it is passed through a 300-mesh sieve, and then molded with a mold (holding pressure of 12MPa and holding time of 30min). After compression molding, it is pre-fired at 800°C for 10 hours.

[0038] After calcining the raw materials for the first time, grind the mixture evenly, dissolve it in absolute ethanol again, and place it in a planetary ball mill (the rotating speed of the ball mill is 500r / min, and the milling time is 60min). After drying at 80°C for 10 ho...

Example Embodiment

[0040] Example 3

[0041] In this embodiment, a new type of high temperature resistance, oxidation resistance, and wear resistance yttrium tantalate (YTaO 4 1) The ceramic material and its preparation method specifically include the following steps:

[0042] It includes the following steps:

[0043] Weigh 8.0611 g of yttrium oxide and 15.7749 g of tantalum oxide, mix them in absolute ethanol, and place them in a planetary ball mill (the speed of the ball mill is 400r / min, the milling time is 120min), and the ball milled solution is heated at 70°C After drying for 16 hours, it is passed through a 200-mesh sieve, and then pressed into a mold with a mold (holding pressure is 9 MPa, and holding time is 40 min). After compression molding, it is pre-fired at 900°C for 9 hours.

[0044] After calcining the raw materials for the first time, grind the mixture evenly, dissolve it in absolute ethanol again, and place it in a planetary ball mill (the speed of the ball mill is 400r / min, the millin...

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

No PUM Login to view more

Abstract

The invention discloses a method for preparing an yttrium tantalate high-temperature ceramic through a solid phase method, wherein the molecular formula of the compound yttrium tantalate is YTaO4. According to the preparation method, the used raw materials are yttrium oxide and tantalum oxide; and the method comprises: weighing the raw materials according to a certain ratio, mixing the raw materials in anhydrous ethanol, placing into a planetary ball mill, carrying out ball milling to achieve a uniformly-mixing state, drying the mixed powder, screening, placing into a mold, compacting, pre-sintering, cooling, taking out the pre-sintered sample, grinding, carrying out ball milling, drying, screening, placing the screened powder into the mold, compacting, and carrying out secondary sintering. According to the present invention, the product purity of the process is high, the impurity content is low, the product preparation cost is low, the method is suitable for mass production, and the target product is expected to be used as the novel high-temperature resistant, anti-oxidation and anti-wear ceramic material.

Description

technical field [0001] The invention belongs to the technical field of high-temperature materials, and in particular relates to a yttrium tantalate high-temperature ceramic, and also relates to a preparation method of the yttrium tantalate high-temperature ceramic. Background technique [0002] About yttrium tantalate (YTaO 4 ) research, as early as 1970, Blasse et al. studied the M-type YTaO 4 The luminescence properties of powders excited by ultraviolet light, and found that there is an energy transfer between the matrix and the activator ions during the luminescence process. In 1973, he studied the M-type YTaO 4 In the early 1980s, Brixner et al. studied the M' type YTaO 4 The luminescent properties of the powders, their effect on NbO 4 3- In YTaO 4 The luminescence in the powder is discussed in detail, and the Eu 3+ , Tb 3+ ion-activated YTaO 4 The luminescence of powders has been studied; since 1999, Li Bo et al. have studied the M' type YTaO 4 Powder single do...

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): C04B35/495C04B35/64C04B35/622C04B35/626
CPCC04B35/495C04B35/622C04B35/62615C04B35/64C04B2235/661C04B2235/9607
Inventor 冯晶蒋业华周荣汪俊
Owner KUNMING UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap