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

Zirconium oxide-based nanometer ceramic tool and die material and preparation method thereof

A nano-ceramic, zirconia-based technology, applied in the field of zirconia-based nano-ceramic tool and die materials and their preparation, can solve the problems of uneven hardness, high cost, insufficient toughness, etc., to improve hardness and wear resistance, improve Material density, effect of improving mechanical properties

Active Publication Date: 2017-05-31
ANHUI TUOJITAI NOVEL CERAMIC TECH
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen from the existing research that ceramic mold materials still have problems such as high cost, insufficient toughness, high brittleness, uneven hardness, poor heat dissipation, and poor self-lubrication, which need to be solved

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A zirconia-based nano-ceramic tooling and mold material. The weight percentage of raw material components is: 12% of aluminum oxide, 2% of graphene oxide, 1% of molybdenum, 3% of nickel carbonyl, and the rest is yttrium-stabilized nano-zirconia. Graphene oxide was first ultrasonically dispersed with 3mol / L ethanol solution of N,N-dimethylformamide.

[0024] The preparation method comprises the following steps:

[0025] (1) Take the yttrium-stabilized nano-zirconia in proportion, take polyethylene glycol as a dispersant, and take the yttrium-stabilized nano-zirconia quality as the base number, the addition of the dispersant is 0.4wt%, with an appropriate amount of dehydrated alcohol As a dispersion medium, prepare a yttrium-stabilized zirconia suspension, stir and ultrasonically disperse, and adjust the pH value of the suspension to 3;

[0026] (2) Weigh the alumina in proportion and carry out ball milling, and then dry continuously at 110°C in an electric vacuum drying...

Embodiment 2

[0032] A zirconia-based nano-ceramic tooling and mold material, the weight percentage of raw material components is:

[0033] 8% aluminum oxide, 1% graphene oxide, 1.5% molybdenum, 4% nickel carbonyl, and the rest is yttrium-stabilized nano-zirconia; wherein, the graphene oxide is firstly mixed with 2mol / L N,N-dimethylformaldehyde Amide solution in ethanol is ultrasonically dispersed.

[0034] The preparation method comprises the following steps:

[0035](1) Take the yttrium-stabilized nano-zirconia in proportion, take polyethylene glycol as a dispersant, and take the yttrium-stabilized nano-zirconia quality as the base number, the addition of the dispersant is 0.2wt%, with an appropriate amount of dehydrated alcohol As a dispersion medium, prepare a yttrium-stabilized zirconia suspension, stir and ultrasonically disperse, and adjust the pH value of the suspension to 3;

[0036] (2) Weigh alumina according to the proportion and carry out ball milling, and then dry continuous...

Embodiment 3

[0042] A zirconia-based nano-ceramic tooling and mold material, the weight percentage of raw material components is:

[0043] Aluminum oxide 14%, graphene oxide 3%, molybdenum 1.4%, nickel carbonyl 2%, and the rest is yttrium-stabilized nano-zirconia; wherein, the graphene oxide is firstly mixed with 4mol / L N,N-dimethylformaldehyde Amide solution in ethanol is ultrasonically dispersed.

[0044] (1) Take the yttrium-stabilized nano-zirconia in proportion, take polyethylene glycol as a dispersant, and take the yttrium-stabilized nano-zirconia quality as the base number, the addition of the dispersant is 0.9wt%, with an appropriate amount of dehydrated alcohol As a dispersion medium, prepare a yttrium-stabilized zirconia suspension, stir and ultrasonically disperse, and adjust the pH value of the suspension to 4;

[0045] (2) Weigh alumina according to the proportion and carry out ball milling, then dry continuously at 120°C in an electric vacuum drying oven, sieve in an inert g...

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

PropertyMeasurementUnit
Bending strengthaaaaaaaaaa
Fracture toughnessaaaaaaaaaa
Bending strengthaaaaaaaaaa
Login to View More

Abstract

The invention provides a zirconium oxide-based nanometer ceramic tool and die material and a preparation method thereof. The preparation method is characterized in that yttrium-stabilized nanometer zirconium oxide is used as a substrate; micrometer alumina is added as a reinforcing phase; micrometer molybdenum, micrometer nickel carbonyl and graphene oxide are used as sintering additives; the hot-pressing sintering is performed. The preparation method comprises the following steps of firstly, respectively dispersing the nanometer zirconium oxide powder and the micrometer-micrometer alumina powder, performing ball milling, and drying, so as to obtain powder; sintering by a hot pressing method. The zirconium oxide-based nanometer ceramic tool and die material has the advantages that the comprehensive mechanic property is better, the hardness, abrasion-resistant property and heat conduction property are high, and the zirconium oxide-based nanometer ceramic tool and die material can be used for manufacturing ceramic tools and dies of extrusion dies, drawing dies, cutting tools and the like, and other abrasion and corrosion-resistant parts and components.

Description

technical field [0001] The invention belongs to the technical field of ceramic tooling and mold materials, and in particular relates to a zirconia-based nanometer ceramic tooling and mold material and a preparation method thereof. Background technique [0002] Ceramic cutting tools have high hardness and wear resistance, and exhibit excellent cutting performance in high-speed cutting and dry cutting, and are a class of cutting tool materials with great development prospects. However, most of the currently used ceramic tool materials are limited to micro-composite ceramics, and the mechanical properties of the materials, especially the strength and toughness, still need to be further improved. According to the Hall-petch relationship: the smaller the grain size, the higher the strength of the ceramic material. Therefore, the research and development of nano-modified and nano-micro composite ceramic tool materials will be one of the main directions for the development of tool...

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): C04B35/48C04B35/622C04B35/645
CPCC04B35/48C04B35/622C04B35/645C04B2235/3217C04B2235/3225C04B2235/3246C04B2235/404C04B2235/425C04B2235/44C04B2235/656C04B2235/96
Inventor 何东张天宇宋晓超张天舒
Owner ANHUI TUOJITAI NOVEL CERAMIC TECH
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