Production method for toughened modified aluminum oxide domestic ceramic

A technology of toughening modification and manufacturing method, which is applied in the field of daily-use ceramics, can solve problems such as restricting development, low fracture toughness, and restrictions, and achieve the effects of solving poor willfulness, improving toughness and strength, and improving easy agglomeration

Inactive Publication Date: 2017-12-01
安徽省含山瓷业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the low fracture toughness of alumina ceramics limits its application in many fields and becomes the main reason restricting its further development.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] A method for manufacturing toughened and modified alumina daily-use ceramics, comprising the following specific steps:

[0021] (1) Add 30g of aluminum isopropoxide and 600ml of deionized water in a water bath at 80°C, stir well until completely dissolved, stir at a speed of 300 rpm for 3 hours, then reduce the speed to 100 rpm, and add 2g The concentration is the nitric acid solution of 10wt%, obtains colloid A after insulation aging 3 hours stand-by;

[0022] (2) Add 34g of tetrabutyl titanate to 68ml of absolute ethanol, stir vigorously for 30 minutes to form a tetrabutyl titanate ethanol solution, and then slowly add it dropwise to 52ml of diethanolamine solution with a concentration of 40wt%. After stirring for 2 hours, stand and age for 7 hours to obtain Colloid B;

[0023] (3) Mix colloid A and colloid B, stir evenly, add 4 g of chopped carbon fibers after pickling and drying with a hydrochloric acid solution with a concentration of 20wt%, stir at a speed of 500...

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Abstract

The invention discloses a production method for toughened modified aluminum oxide domestic ceramic. According to the production technology, the toughness of aluminum oxide ceramic is improved by generating nano titanium dioxide and adding short carbon fiber, the defects of poor toughness and strength and high brittleness of the conventional aluminum oxide toughness are improved, the sizes of the crystalline grains of nano titanium dioxide in the high-temperature pressure sintering process can be controlled to be nano size, and good strength, low-temperature toughness, low-temperature plasticity and other properties can be kept easily, so that the compounded modified aluminum oxide ceramic has high strength and high toughness. According to the production method, raw materials are easily available, the process is beneficial to industrial control, and the defects of poor toughness and easy cracking of the domestic ceramic can be solved.

Description

technical field [0001] The invention relates to the technical field of daily-use ceramics, in particular to a method for manufacturing toughened and modified alumina daily-use ceramics and a manufacturing method thereof. Background technique [0002] Alumina ceramics have good comprehensive properties in terms of mechanics, high temperature resistance and chemical stability, and the source of production raw materials is sufficient, the manufacturing cost is low, and it is suitable for large-scale industrial production. It is one of the most widely used ceramic materials in the world. . However, the low fracture toughness of alumina ceramics limits its application in many fields and becomes the main reason restricting its further development. [0003] Carbon fiber is a fibrous carbon material. It is stronger than steel, less dense than aluminum, stronger in corrosion resistance than stainless steel, higher in temperature resistance than heat-resistant steel, and conductive l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/46C04B35/10C04B35/624C04B35/80C04B35/565
CPCC04B35/10C04B35/46C04B35/565C04B35/624C04B35/803C04B2235/3217C04B2235/3232C04B2235/5248C04B2235/602C04B2235/606C04B2235/656C04B2235/6562C04B2235/6567C04B2235/94
Inventor 舒小山章建武宫平汤兴友
Owner 安徽省含山瓷业股份有限公司
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