In-situ synthesized boron nitride nanosheet-nanotube composite material and preparation method thereof

Abstract

The invention discloses an in-situ synthesized boron nitride nanosheet-nanotube composite material and a preparation method thereof. The preparation method comprises the step: sequentially adding boron nitride nanosheets, a chelating agent and nickel salt into deionized water, stirring, performing ultrasonic treatment, filtering and vacuum drying, and obtaining the boron nitride nanosheets of theanchoring catalyst, wherein the mass ratio of the boron nitride nanosheets to the chelating agent to the nickel salt is 1: (5-25): (25-50); and then putting the boron nitride nanosheet anchored with the catalyst into a chemical vapor deposition system, taking borazine as a precursor and taking argon as carrier gas, and carrying out heat treatment reaction for 1-3 hours at 1000-1200 DEG C to obtainthe in-situ synthesized boron nitride nanosheet-nanotube composite material. According to the method, the boron nitride nanotubes can grow on the boron nitride nanosheets in situ, the obtained composite material is stable in structure, high in interface bonding, large in nanotube length-diameter ratio, easy to prepare and good in repeatability, and application of the boron nitride nanomaterials in the field of advanced composite materials can be promoted.

Description

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AI Technical Summary

Benefits of technology

This patented technology involves creating new types of composites with improved properties by chemically depositing metal or other molecules onto small particles made from silicon carbide (SiC). These tiny objects act like miniaturized reactors that help improve reaction rates at lower temperatures than traditional methods for producing ceramic components such as zirconia. Additionally, this process allows for precise control over the growth direction and size of these structures, resulting in better performance characteristics compared to existing techniques.

Problems solved by technology

This patented technical problem addressed by this patent relates to improving the physical characteristics and functionality of various types of material systems including cerium nitrides, tantalum nitridons, titania, carbides, diamond, graphite, carbon black, amber nitrides and others. These new compounds offer great potential applications due to their outstanding qualities like flexibility, resistance against environmental stress cracking, heat conduction, insulation property, gas permeability, lightweightiness, durable shock resistant behavior, and compression strength. Additionally, these novel compound structures provide enhanced capabilities compared to existing materials while maintaining superior impact resistance over time.

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