Zirconium-oxide-based nanocomposite ceramic die material and preparation method thereof

A nano-composite, ceramic mold technology, applied in the field of ceramic mold materials, can solve the problem of low comprehensive mechanical properties of mold materials, and achieve the effects of good comprehensive mechanical properties, lower sintering temperature, and excellent anti-friction and wear resistance.

Inactive Publication Date: 2018-01-19
SUZHOU HAOYAN PRECISION MOLD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low comprehensive mechanical properties of ex

Method used

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Examples

Experimental program
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Example Embodiment

[0018] Example 1

[0019] A zirconia-based nano composite ceramic mold material. The raw materials include 80 parts by weight of zirconia, 4 parts of silicon carbide, 8 parts of alumina, 1 part of lanthanum oxide, 2 parts of zinc oxide, 1 part of titanium oxide, and 0.8 parts of molybdenum. Parts, nickel 1 part, magnesium oxide 1 part.

[0020] Wherein, the particle size of the zirconia is 300-500nm; the particle size of the silicon carbide is 30-60nm; the particle size of the aluminum oxide, lanthanum oxide, and zinc oxide is 100-150nm.

[0021] The titanium oxide is doped with silicon oxide, and the specific modification method is as follows: prepare the titanium oxide into a 20g / L suspension, adjust the pH of the suspension to 10 with 0.5M sodium hydroxide solution, ultrasonically disperse, and increase the temperature. To 85°C, add 1mol / L sodium silicate aqueous solution dropwise to the suspension with stirring, the amount of sodium silicate is m(SiO 2 ): m(TiO 2 )=1:4, after dr...

Example Embodiment

[0030] Example 2

[0031] A zirconia-based nanocomposite ceramic mold material. The raw materials include 90 parts by weight of zirconia, 6 parts of silicon carbide, 11 parts of alumina, 2 parts of lanthanum oxide, 3 parts of zinc oxide, 2 parts of titanium oxide, and 1.2 parts of molybdenum. Parts, 1.1 parts of nickel and 2 parts of magnesium oxide.

[0032] Wherein, the particle size of the zirconia is 300-500nm; the particle size of the silicon carbide is 30-60nm; the particle size of the aluminum oxide, lanthanum oxide, and zinc oxide is 100-150nm.

[0033] The titanium oxide is doped with silicon oxide, and the specific modification method is as follows: prepare the titanium oxide into a 20g / L suspension, adjust the pH of the suspension to 10 with 0.5M sodium hydroxide solution, ultrasonically disperse, and increase the temperature. To 85°C, add 1mol / L sodium silicate aqueous solution dropwise to the suspension under stirring conditions. The amount of sodium silicate is m(SiO 2...

Example Embodiment

[0042] Example 3

[0043] A zirconia-based nanocomposite ceramic mold material. The raw materials include 100 parts by weight of zirconia, 10 parts of silicon carbide, 15 parts of alumina, 4 parts of lanthanum oxide, 5 parts of zinc oxide, 3 parts of titanium oxide, and 1.5 parts of molybdenum. Parts, 1.2 parts of nickel and 1.3 parts of magnesium oxide.

[0044] Wherein, the particle size of the zirconia is 300-500nm; the particle size of the silicon carbide is 30-60nm; the particle size of the aluminum oxide, lanthanum oxide, and zinc oxide is 100-150nm.

[0045] The titanium oxide is doped with silicon oxide, and the specific modification method is as follows: prepare the titanium oxide into a 20g / L suspension, adjust the pH of the suspension to 10 with 0.5M sodium hydroxide solution, ultrasonically disperse, and raise the temperature To 85°C, add 1mol / L sodium silicate aqueous solution dropwise to the suspension under stirring conditions. The amount of sodium silicate is m(SiO 2...

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Abstract

The invention provides a zirconium-oxide-based nanocomposite ceramic die material and a preparation method thereof. Raw materials of the die material include zirconium oxide, silicon carbide, aluminumoxide, lanthanum oxide, zinc oxide, titanium oxide, molybdenum, nickel and magnesium oxide. The preparation method of the zirconium-oxide-based nanocomposite ceramic die material comprises the steps:firstly, adding zirconium oxide, silicon carbide and aluminum oxide into ethanol to prepare a suspension A; then, adding lanthanum oxide, zinc oxide, titanium oxide, molybdenum, nickel and magnesiumoxide into ethanol to prepare a suspension B; next, mixing the suspension A with the suspension B, pouring the mixed suspension into a ball milling tank to carry out ball milling by utilizing a hard alloy ball machine, carrying out vacuum drying on a grinding liquid at 100 DEG C, and after sieving the obtained composite powder, carrying out hot pressing and sintering to obtain the zirconium-oxide-based nanocomposite ceramic die material. The composite ceramic die material provided by the invention is better in comprehensive mechanical property and excellent in antifriction and wear-resistant properties.

Description

technical field [0001] The invention relates to a ceramic mold material, in particular to a zirconia-based nanocomposite ceramic mold material and a preparation method thereof. Background technique [0002] Mold is an indispensable important equipment in modern industry. At present, the mold materials are mainly various mold steels, followed by cemented carbide. Although the mold steel has high strength, it has low hardness and poor wear resistance, so the service life of the mold is relatively low. Since the 1980s, cemented carbide has been widely used in mold materials due to its good mechanical properties and wear resistance, which greatly improves the life of molds. However, with the rapid development of production, the high-temperature strength and wear resistance of alloy steel molds and cemented carbide molds have fallen behind the needs of actual production. The research and development of new ceramic mold materials is an important content in the current mold re...

Claims

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Application Information

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IPC IPC(8): C04B35/48C04B35/626
Inventor 刘浩张君张欢芬
Owner SUZHOU HAOYAN PRECISION MOLD CO LTD
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