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

Aluminum magnesium oxynitride/boron nitride diphase refractory materials and preparing process thereof

A technology of aluminum magnesium oxynitride and refractory materials, which is applied in the field of structural ceramics and refractory materials, and can solve problems such as low thermal shock resistance and difficult control of MgAlON synthesis conditions

Inactive Publication Date: 2005-04-06
ZHONGYUAN WEIYE NEW MATERIAL
View PDF0 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problems that the synthesis conditions of MgAlON are not easy to control, and the performance of thermal shock resistance is not high.

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
  • Aluminum magnesium oxynitride/boron nitride diphase refractory materials and preparing process thereof
  • Aluminum magnesium oxynitride/boron nitride diphase refractory materials and preparing process thereof
  • Aluminum magnesium oxynitride/boron nitride diphase refractory materials and preparing process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] according to figure 1 Definite process route, the present invention has carried out the synthetic test of series MgAlON / BN composite material, to analyze pure Al 2 o 3 , AlN, MgO and BN were used as raw materials, and hot-pressed and normal-pressure synthesis tests were carried out. The raw material composition of the synthetic test is shown in Table 1. Natural raw materials were used as raw materials, and the normal-pressure synthesis test was carried out. The raw material components are shown in Table 2. In Table 1-2, Al 2 o 3 , AlN, MgO or bauxite, aluminum powder, and magnesia are the raw materials for the synthesis of MgAlON. According to the calculation of the theoretical density of MgAlON and the theoretical density of BN, it can be known that the volume content of BN in Table 1 and Table 2 varies from about 10% to 90%.

[0022] no

al 2 o 3 (mass%)

AlN(mass%)

MgO(mass%)

BN(mass%)

1

79.74

9.16

4.4...

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 belongs to structural ceramics and refractory technology field. It relates to a MgAlON / BN poly-phase refractory material. While compounding MgAlON and BN proportion poly-phase material, if MgAlON is base, the addition quantity of BN is 10% to 40%; if BN is base, the addition quantity is 5% to 25%. The technology request is: sintering temperature is about 1500 degree centigrade to 2000 degree centigrade; sintering pressure is about 0.1Mpa to 50Mpa, nitrogen gas protection while sintering or compounding; the ratio of oxygen partial pressure and nitrogen partial pressure is between 10 negative quintic power to 10 negative fifteen power; temperature keeping span is between 0.5 hour to 10 hour. The compounding of MgAlON / BN can make the most of both features to make the material has good mechanical property, chemical property and high temperature shock stability. The invention may be a new high performance structure ceramics or a new type workable refractory.

Description

Technical field: [0001] The invention belongs to the technical field of structural ceramics and refractory materials, and relates to an aluminum magnesium oxynitride / boron nitride composite refractory material. technical background: [0002] Aluminum magnesium oxynitride (hereinafter referred to as MgAlON) is a stable ceramic material developed in the past ten years. It has good mechanical properties, high temperature resistance, oxidation resistance, and corrosion resistance. Therefore, MgAlON is expected to be used as a high-performance high-temperature ceramic and refractory material. However, the synthesis conditions of MgAlON are not easy to control, and its thermal shock resistance is not high, which limits its wide application to a certain extent. Hexagonal boron nitride (hereinafter referred to as BN) is a ceramic material with superior performance, which has excellent thermal shock resistance, corrosion resistance, high temperature chemical stability and machinabil...

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): C04B35/01C04B35/583C04B35/5835C04B35/622
Inventor 王习东张作泰张梅李文超
Owner ZHONGYUAN WEIYE NEW MATERIAL
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