Aluminum oxide-based wear-resisting cutting ceramic and preparation method thereof

Abstract

The invention discloses aluminum oxide-based wear-resisting cutting ceramic which is prepared from the following raw materials in parts by weight: 10-14 parts of silicon carbide crystal whisker, 3-5 parts of petalite, 4-6 parts of kaolin, 1-2 parts of lithium carbonate, 6-9 parts of fused quartz, 2-3 parts of aluminum ammonium sulfate, 1-2 parts of molybdenum disulfide, 1.3-1.6 parts of lactic acid, 40-45 parts of alpha-aluminum oxide, 40-45 parts of beta-aluminum oxide, 1-1.4 parts of nanosilicon dioxide, a proper amount of ethanol, a proper amount of deionized water, 1-1.5 parts of polyacrylic acid, 1.2-1.6 parts of polyethylene glycol and 4-5 parts of an anti-wearing additive. The ceramic disclosed by the invention is relatively good in conduction, mechanical strength and high temperature resistance; due to addition of the silicon carbide crystal whisker and the nanosilicon dioxide, the toughness and the wearing resistance of the ceramic are improved, and the ceramic is applicable to manufacturing of cutting tools which can be used for cutting materials with relatively high hardness; due to addition of the anti-wearing additive, the wearing resistance and the thermal resistance of the ceramic are improved.

Description

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AI Technical Summary

Benefits of technology

This patented technology improves on traditional materials used for manufacturing tooling due to its better electrical properties (conductance) and physical characteristics such as hardness or abrasion resistance compared with current methods like plasma spray coating. Silicon carboxylic acid groups added during sintered production improve flexibility while maintaining strong bond between particles without losing their effectiveness over time. Anti-wear agents help increase durability against wearing damage caused by heavy machinery.

Problems solved by technology

This patents discusses different types of cerams made from specific metals like molydenum or tantalum called wolframite. These ceramisms can be useful when machining certain alloys due to its superior abrasion resistant property compared to other metal based ones. Additionally, researchers want to investigate novel ceramia compositions without losing any important features they were trying on at first glance.