Supercharge Your Innovation With Domain-Expert AI Agents!

Preparation method of phosphate-reinforced zirconia fiber high-efficiency thermal-insulation composite material

A technology of zirconia fiber and composite materials, which is applied in the field of preparation of inorganic composite materials, can solve the problems of poor mechanical properties of heat insulation materials, poor mechanical properties of heat insulation tiles, and low strength of inorganic binders, and achieve easy implementation and production The effect of short cycle time and good high temperature stability

Inactive Publication Date: 2017-05-31
SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Chinese Patent Publication No. CN101691138A discloses a preparation method of heat-insulating tiles, which mainly uses quartz fibers mixed with a small amount of alumina fibers and boron nitride powder to prepare low-temperature heat-insulating tiles, but the coating formula of the heat-insulating tiles disclosed in this patent has A large number of alkali metal ions limit its use temperature
Chinese Patent Publication No. CN102199042A discloses a method for preparing a lightweight rigid ceramic insulation tile. This patent also mainly uses quartz fiber and mullite fiber as the matrix, adding a small amount of boron nitride and silicon carbide powder. Due to the high density of silicon carbide, Uneven distribution in the green body leads to poor mechanical properties of the insulation tile, and it is also used in low temperature environments
[0005] However, due to the high firing temperature of zirconia fiber heat insulation materials, ordinary binders are difficult to meet the requirements, and only high-temperature-resistant inorganic binders can be used. The strength of inorganic binders is low, and the mechanical properties of the prepared heat insulation materials are poor. and difficult to compound evenly

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
  • Preparation method of phosphate-reinforced zirconia fiber high-efficiency thermal-insulation composite material
  • Preparation method of phosphate-reinforced zirconia fiber high-efficiency thermal-insulation composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 2000gLaCl 3 ·6H 2 O, add to 10000g deionized water, stir until the powder is completely dissolved, add 1000gH 3 PO 4 , Stir with a micro stirrer for 30 minutes, and let it stand for 12 hours after the solution is evenly mixed. Mix the chopped zirconia fiber (average length 30μm), the binder lanthanum phosphate solution with 200% of the zirconia fiber mass, and the deionized water with 3000% of the zirconia fiber mass, and stir for 40 minutes with a micro stirrer to make the fiber Slurry. The vacuum degree of the vacuum tank is maintained at -0.1MPa, the slurry is added to the mold for collection, the vacuum filtration treatment time is 10 minutes, and the vacuum filtration is formed into a wet green. The wet billet is placed in a constant temperature drying box, and the drying process is 70°C for 12 hours and 140°C for 4 hours. After drying, the wet billet is placed in a high-temperature sintering furnace and fired at 1500°C under normal pressure. The temperature ...

Embodiment 2

[0034] Weigh 2000gLaCl 3 ·6H 2 O, add to 10000g deionized water, stir until the powder is completely dissolved, add 1000gH 3 PO 4 , Stir with a micro stirrer for 30 minutes, and let it stand for 12 hours after the solution is evenly mixed. Mix the chopped zirconia fiber (average length 150μm), the binder lanthanum phosphate solution with 500% of the zirconia fiber mass, and the deionized water with 2500% of the zirconia fiber mass, and stir for 40 minutes with a micro stirrer to make the fiber Slurry. The vacuum degree of the vacuum tank is kept at -0.06MPa, the slurry is added to the mold for collection, the vacuum filtration treatment time is 10 minutes, and the vacuum filtration is formed into a wet green. The wet billet is placed in a constant temperature drying box, and the drying process is 50°C for 24 hours and 140°C for 4 hours. After drying, the wet billet is placed in a high-temperature sintering furnace and fired at 1500°C under normal pressure. The temperature is k...

Embodiment 3

[0036] Weigh 2500gLaCl 3 ·6H 2 O, add to 10000g deionized water, stir until the powder is completely dissolved, add 1000gH 3 PO 4 , Stir with a micro stirrer for 30 minutes, and let it stand for 12 hours after the solution is evenly mixed. Mix the chopped zirconia fiber (average length 30μm), the binder lanthanum phosphate solution with 100% zirconia fiber mass, and 3000% deionized water with zirconia fiber mass, and stir for 40 minutes with a micro stirrer to make fiber Slurry. The vacuum degree of the vacuum tank is kept at -0.05MPa, the slurry is added to the mold for collection, the vacuum filtration treatment time is 10 minutes, and the vacuum filtration is formed into a wet green. The wet billet is placed in a constant temperature drying box, and the drying process is 70°C for 12 hours and 140°C for 4 hours. After drying, the wet billet is placed in a high-temperature sintering furnace and fired at 1550°C under normal pressure, and kept for 5 hours to cool to room temper...

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
Densityaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Thermal conductivityaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method of a phosphate-reinforced zirconia fiber high-efficiency thermal-insulation composite material, and belongs to the technical field of inorganic composite material preparation. The preparation method comprises following steps: 1, pretreatment of zirconia fiber; 2, preparation of a phosphate binder; 3, preparation of a thermal-insulation composite material molding slurry; 4, pumping filtration moulding; and 5, heat treatment. Operation of the preparation method is simple; the obtained target product can be used at 1500 DEG C for a long term; intensity is low; high temperature stability is high; and the mechanical properties of the obtained phosphate-reinforced zirconia fiber high-efficiency thermal-insulation composite material are improved greatly.

Description

Technical field [0001] The invention relates to a preparation method of a phosphate-reinforced zirconia fiber high-efficiency heat insulation composite material, belonging to the technical field of preparation of inorganic composite materials. Background technique [0002] High-temperature thermal insulation materials are one of the key technologies for thermal protection of hypersonic aircraft. As the flight speed increases and the flight time is prolonged, the flight environment of the aircraft becomes more demanding, and higher requirements are placed on thermal insulation materials. [0003] Chinese Patent Publication No. CN101691138A discloses a method for preparing thermal insulation tiles, which mainly uses quartz fiber, a small amount of alumina fiber and boron nitride powder to prepare low-temperature thermal insulation tiles, but the thermal insulation tile coating formula published by the patent has A large amount of alkali metal ions limits its use temperature. Chinese...

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): C04B35/80C04B35/63
CPCC04B35/803C04B35/6306C04B2235/602C04B2235/606C04B2235/6562C04B2235/6567C04B2235/77C04B2235/96C04B2235/9607
Inventor 王开宇刘瑞祥杨杰周长灵隋学叶栾强
Owner SHANDONG RES & DESIGN ACADEMY OF IND CERAMICS
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com