Nano (Ti, M) C solid solution crystal whisker and preparation method thereof

A solid solution and nanotechnology, applied in self-solid, chemical instruments and methods, single crystal growth, etc., can solve problems such as poor interface bonding, and achieve the effect of solving poor interface bonding, firm interface bonding, and low price

Active Publication Date: 2016-11-09
SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
View PDF2 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solid solution whiskers can be used as nano-ceramic phase whiskers to toughen and reinforce metal matrix and ceramic matrix composite materials, which can effectively solve the technical problem of poor interface bonding between the existing TiC whiskers and the matrix

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
  • Nano (Ti, M) C solid solution crystal whisker and preparation method thereof
  • Nano (Ti, M) C solid solution crystal whisker and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0029] The preparation method of nanometer (Ti, M)C solid solution whiskers of the present invention, the steps are as follows:

[0030] (1) Raw material equipment

[0031] The raw materials for the preparation of nanometer (Ti, M)C solid solution whiskers include (Ti, M)C component precursors, halogenating agents and catalysts required for whisker synthesis reactions; the precursor raw materials for component Ti are metatitanic acid The precursor raw material of component C is glucose; the precursor raw material of component M is a soluble salt of at least one metal element in W, Mo, V, Cr, Ta, Nb; the halogenating agent is sodium chloride , Potassium Chloride, Calcium Chloride, Barium Chloride, Lithium Chloride or any two mixtures. The catalyst is one of soluble nickel salt, soluble cobalt salt and soluble iron salt.

[0032] The quality of the precursor raw materials of components Ti, C and M is calculated and weighed according to the weight percentage composition of Ti, ...

Embodiment 1

[0040] Dissolve 19.2g of metatitanic acid, 5.02g of ammonium metatungstate, 18.94g of glucose, 4.79g of sodium chloride and 2.05g of cobalt chloride in 250ml of distilled water, and stir evenly to obtain a precursor solution; 2) the precursor The solution was placed in a blast drying oven, and dried at 60°C for 5 hours to obtain a fluffy precursor mixture; 3) The precursor mixture was placed in a tube furnace, under the protection of Ar gas, at 1100°C Carbothermal reaction was carried out by keeping it warm for 4 hours to obtain unpurified nano-(Ti, 40W)C whiskers; 4) decarburized the unpurified nano-(Ti, 40W)C whiskers by burning them in air at 400°C for 4 hours, and then passed Washing, centrifuging to separate and remove granular residues, and finally drying to obtain nano (Ti, 40W)C whiskers with a whisker diameter less than 100nm.

[0041] figure 1 The XRD pattern of the (Ti, 40W)C whiskers prepared in Example 1. The existing technology shows that in the range of 20-90°...

Embodiment 2

[0044] Dissolve 18.4g of metatitanic acid, 0.13g of ammonium metavanadate, 14.92g of glucose, 9.17g of potassium chloride and 7.38g of nickel chloride in 250ml of distilled water, and stir evenly to obtain a precursor solution; 2) the precursor The solution was placed in a blast drying oven, and dried at 80°C for 4 hours to obtain a fluffy precursor mixture; 3) The precursor mixture was placed in a carbon tube furnace, under the protection of Ar gas, at 1300°C Carbothermal reaction was carried out by keeping it warm for 1h to obtain unpurified nano (Ti, 0.1V)C whiskers; 4) decarburized the unpurified nano (Ti, 0.1V)C whiskers by burning them in air at 350℃ for 6h, Then, the granular residues were separated and removed by washing and centrifugation, and finally dried to obtain nano-(Ti, 0.1V)C whiskers with a whisker diameter less than 100 nm.

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
diameteraaaaaaaaaa
Login to view more

Abstract

The invention discloses a nano (Ti, M) C solid solution crystal whisker and a preparation method thereof. The nano (Ti, M) C solid solution crystal whisker is prepared from the following components: 40-79.9% of Ti, 0.1-40% of M and the balance of C, wherein M is at least one of W, Mo, V, Cr, Ta and Nb. Preparation raw materials comprise a component precursor of (Ti, M) C, a halogenating agent and a catalyst. The preparation method comprises the following steps: preparing a precursor mixed solution from all raw materials with distilled water, and drying so as to obtain precursor mixed powder; putting the precursor mixed powder into a reaction furnace, performing carbon-thermal reaction at 1100-1300 DEG C, firing the obtained nano (Ti, M) C solid solution crystal whisker for 4-6 hours at 350-400 DEG C in the presence of air for decarbonization, washing, performing eccentric separation, and finally drying, thereby obtaining the nano (Ti, M) C solid solution crystal whisker. The nano (Ti, M) C solid solution crystal whisker can be used as a nano ceramic phase crystal whisker toughening reinforcing metal based and ceramic based composite material, and is in good interface combination with a substrate.

Description

technical field [0001] The invention relates to a titanium carbide whisker material, in particular to a nanometer (Ti, M)C solid solution whisker and a preparation method thereof, belonging to the technical field of ceramic phase whisker materials. Background technique [0002] Titanium carbide (TiC) whiskers have the advantages of high melting point, hardness, modulus, etc., and are mainly used to prepare whisker-reinforced metal matrix, ceramic matrix and other composite materials to improve the strength, toughness and wear resistance of materials. , It has a wide range of uses in industrial fields such as automobiles, electronics, machinery, metallurgy, aerospace, and new materials. However, the poor interfacial bonding between TiC whiskers and matrix materials is still a technical bottleneck hindering its industrial application. This interfacial bonding is closely related to the solubility, wettability, interfacial reactivity, and interphase compatibility (such as therm...

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): C30B29/36C30B29/62C30B1/10
CPCC30B1/10C30B29/36C30B29/62
Inventor 金永中张正权尹植王睿贤张永强
Owner SICHUAN UNIVERSITY OF SCIENCE AND ENGINEERING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap