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

Novel NiAl-based solid self-lubricating composite material and preparation process thereof

A solid self-lubricating and composite material technology is applied in the field of new NiAl-based solid self-lubricating composite materials and their preparation, which can solve the problems of low wear rate of Y-TZP/tabular alumina composite ceramics, and improve the oxidation resistance. , Improve strength and ductility, save energy

Active Publication Date: 2016-04-13
YELLOW RIVER CONSERVANCY TECHN INST
View PDF7 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Experimental test results show that the wear rate of Y-TZP / plate-shaped alumina composite ceramics is lower under the same load

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Novel NiAl-based solid self-lubricating composite material and preparation process thereof
  • Novel NiAl-based solid self-lubricating composite material and preparation process thereof
  • Novel NiAl-based solid self-lubricating composite material and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] like figure 1 Shown, a kind of preparation technology of the novel NiAl-based solid self-lubricating composite material with Ag powder and Mo-B-O-Zr-Cr quinary plate crystal as lubricating phase, it comprises the following steps:

[0032] (1) According to the molar ratio of 1:2:1:1, select ammonium molybdate powder, boron powder, zirconium powder and chromium powder for ball mill mixing. The speed of the ball mill is 100 rpm, and the mass ratio of ball to material is 8:1. , the planetary ball milling time is 2 hours, and the initial mixture of Mo-B-O-Zr-Cr quinary plate crystals is obtained, and the average particle size of the initial mixture is 5 μm;

[0033] (2) The ingredients after ball milling are sintered by spark plasma sintering equipment. The sintering process is 450°C for 40 minutes, the protective gas is nitrogen, and the oxygen flow rate is 50mL / min to obtain the Mo-B-O-Zr-Cr five-component board shaped crystals with a thickness of 2 μm and a length of 110...

Embodiment 2

[0039] The preparation technology of the novel NiAl base solid self-lubricating composite material of the present embodiment, it comprises the steps:

[0040] (1) According to the molar ratio of 1:2:1:1, select ammonium molybdate powder, boron powder, zirconium powder and chromium powder for ball mill mixing. The speed of the ball mill is 300 rpm, and the mass ratio of ball to material is 10:1. , the planetary ball milling time is 3 hours, and the initial mixture of Mo-B-O-Zr-Cr quinary plate crystals is obtained, and the average particle size of the initial mixture is 15 μm;

[0041] (2) The ingredients after ball milling were sintered by spark plasma sintering equipment. The sintering process was 750°C for 20 minutes, and the protective gas was nitrogen to obtain the Mo-B-O-Zr-Cr five-element plate-shaped crystal with a thickness of 5 μm and a length of 700μm;

[0042] (3) Select 13.0 grams of Ni powder, 7.0 grams of Al powder, 3.0 grams of Ag powder and 2.0 grams of the Mo...

Embodiment 3

[0047] The preparation technology of the novel NiAl base solid self-lubricating composite material of the present embodiment, it comprises the steps:

[0048] (1) According to the molar ratio of 1:2:1:1, select ammonium molybdate powder, boron powder, zirconium powder and chromium powder for ball mill mixing. The speed of the ball mill is 200 rpm, and the mass ratio of ball to material is 9:1. , the planetary ball milling time is 2.5 hours, and the initial mixture of Mo-B-O-Zr-Cr quinary plate crystals is obtained, and the average particle size of the initial mixture is 10 μm;

[0049] (2) The ingredients after ball milling were sintered by spark plasma sintering equipment. The sintering process was 600°C for 30 minutes, and the protective gas was nitrogen to obtain the Mo-B-O-Zr-Cr five-element plate-shaped crystal with a thickness of 3 μm and a length of 300μm;

[0050] (3) Select 13.0 grams of Ni powder, 7.0 grams of Al powder, 2.4 grams of Ag powder and 1.6 grams of the M...

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
thicknessaaaaaaaaaa
lengthaaaaaaaaaa
hardnessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a novel NiAl-based solid self-lubricating composite material and a preparation process thereof. The preparation process comprises the following steps of preparing Mo-B-O-Zr-Cr pentabasic clintheriform crystals; selecting Ni powder and Al powder according to the mole ratio of Ni to Al, namely 1: 1, selecting the Mo-B-O-Zr-Cr pentabasic clintheriform crystals and Ag powder according to the weight ratio of (10-15)% of the total mass of the Ni powder and (5-10)% of the total mass of the Al powder respectively, and mixing, compounding and placing the Mo-B-O-Zr-Cr pentabasic clintheriform crystals, the Ni powder, the Al powder and the Ag powder in a vibrating mixer for uniform mixing, so that a sintering compound is obtained; sintering the sintering compound with spark plasma sintering equipment, and preparing the novel NiAl-based solid self-lubricating composite material with the Mo-B-O-Zr-Cr pentabasic clintheriform crystals as the solid lubrication phase. The preparation process is novel, and the composite material is easy, fast and convenient to prepare, is excellent in performance and has stable and excellent tribological performance.

Description

technical field [0001] The invention belongs to the technical field of composite material preparation, and in particular relates to a novel NiAl-based solid self-lubricating composite material with Ag and Mo-B-O-Zr-Cr five-element plate crystals as lubricating phases and a preparation process thereof. Background technique [0002] With the rapid development of aviation, aerospace and automobile industries, some moving parts under extreme working conditions such as high temperature, ultra-high vacuum, strong radiation and other environments have put forward higher requirements for solid self-lubricating composite materials, driving solid self-lubricating The rapid development of composite materials. Therefore, it is necessary to develop new high temperature resistant solid self-lubricating materials. NiAl-based metal materials have been widely valued by some scientific research workers because of their high melting point, low density, high thermal conductivity and excellent ...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C1/05
CPCC22C1/0433C22C1/058C22C19/057
Inventor 薛冰马卫东张延仝蓓蓓李冰史晓亮翟文正
Owner YELLOW RIVER CONSERVANCY TECHN INST
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