High strength and high wear-resistance zirconium-aluminum-silicon composite self-release glazed ceramic material and manufacture method thereof

Abstract

The invention relates to a high strength and high wear-resistance zirconium-aluminum-silicon composite self-release glazed ceramic material and a manufacture method thereof, which is characterized inthat the material is prepared by the following raw materials according to the following steps: the raw materials are calcined polishing aluminum oxide, zirconium silicate, yttria, cerium oxide, magnesium oxide, calcium carbonate and titanium oxide; the steps are as follows: putting the raw material into a ball grinder, adding water, and adding polyving akohol with 5% concentration to carry out wet-ball milling to obtain sizing agent; and then atomizing and drying sizing agent to obtain dry mash which is molded by isostatic pressing to obtain green-ware; sintering the green-ware in a reducing atmosphere by adopting a high-temperature drawer kiln to obtain the high strength and high wear-resistance zirconium-aluminum-silicon composite self-release glazed ceramic material. Compared with aluminum oxide ceramic material, the zirconium-aluminum-silicon composite self-release glazed ceramic material has high strength, high tenacity and high wear-resistance; the production technique is simpleand the sintering temperature is reduced by a wide margin, thus achieving the purpose of energy-saving and consumption reducing.

Description

technical field [0001] The invention relates to a high-strength, high-wear-resistant zirconium-aluminum-silicon composite self-releasing glaze ceramic material and a manufacturing method thereof. Background technique [0002] Traditional alumina (corundum) structural ceramic materials are widely used because of their extensive and cheap raw materials and low requirements for technical equipment. The firing temperature of alumina structural ceramics is relatively high, generally reaching above 1600°C, and the energy consumption is serious; at the same time, due to oxidation The fracture toughness of aluminum ceramics is low, so its bending strength and wear resistance are poor; therefore, for some fields that require high wear resistance and mechanical strength, such as ceramic cylinder liners for oil drilling, alumina ceramic materials cannot be used preparation. Zirconia ceramics have high mechanical strength and fracture toughness, but are very expensive. At the same tim...

AI Technical Summary

Problems solved by technology

[0002] Traditional alumina (corundum) structural ceramic materials are widely used because of their extensive and cheap raw materials and low requirements for technical equipment. The firing temperature of alumina structural ceramics is relatively high, generally reaching above 1600°C, and the energy consumption is serious; at the same time, due to oxidation The fracture toughness of aluminum ceramics is low, so its bending strength and wear resistance are poor; therefore, for some fields that require high wear resistance and mechanical strength, such as ceramic cylinder liners for oil drilling, alumina ceramic materials cannot be used preparation

Zirconia ceramics have high mechanical strength and fracture toughness, but are very expensive

At the same time, zirconia ceramics are prone to low-temperature aging, so it is difficult to promote them on a large scale