Preparation method of nanometer material
A technology of nanomaterials and substrate materials, applied in nanotechnology, nanotechnology, metal material coating process, etc., can solve the problem of weak adhesion between carbon nanotubes and substrates, and achieve the effect of improving adhesion
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Embodiment 1
[0028] Use electrochemical methods to corrode pits with a vertical depth of about 2μm-10μm on the surface of the aluminum foil base material. In the chemical vapor deposition reaction furnace, argon gas is introduced as a protective gas, the temperature of the base material is raised to 625°C, and the temperature is kept, and hydrogen gas, an ethanol solution in which the catalyst ferrocene is dissolved, and ethylene gas are introduced into the chemical vapor deposition reaction furnace. Start to grow carbon nanotubes on the surface of the aluminum foil substrate. The reaction time is 1h. At the interface between the prepared carbon nanotubes and the aluminum foil substrate, the roots of the carbon nanotubes are entangled into small coils and buried in the pits on the surface of the aluminum foil substrate. , thereby greatly improving the bonding force between carbon nanotubes and aluminum foil substrates.
Embodiment 2
[0030] Laser etching is used to etch a circular pit with a vertical depth of 30 μm-50 μm on the surface of silicon oxide ceramics. The pit is a circular cavity with an inner diameter larger than the diameter of the pit surface, and the length of the pit surface diameter is 15 μm. Evaporate a layer of Fe catalyst layer with a thickness of about 30nm on the surface of the silicon oxide material with the pit surface, then put the silicon oxide substrate loaded with the catalyst film layer into a chemical vapor deposition reaction furnace, and pass in argon as a protective gas, Raise the temperature of the substrate material to 950°C, keep it warm, and feed hydrogen and ethylene gas into the chemical vapor deposition reaction furnace to start growing carbon nanotubes on the surface of the silicon oxide substrate. The reaction time is 1h. The prepared carbon nanotubes and silicon oxide substrate At the contact interface, the roots of the carbon nanotubes are wound into small coils a...
Embodiment 3
[0032]Use chemical methods to corrode pits with a vertical depth of about 2μm-20μm on the surface of the iron-nickel-based stainless steel base material. Put it into the chemical vapor deposition reaction furnace, pass in argon as a protective gas, raise the temperature of the base material to 800°C, keep it warm, and pass hydrogen gas, ethanol solution with iron-based catalyst dissolved, and acetylene gas into the chemical vapor deposition reaction furnace , began to grow carbon nanotubes on the surface of the stainless steel substrate, and the reaction time was 1h. At the interface between the prepared carbon nanotubes and the iron-nickel stainless steel substrate, the roots of the carbon nanotubes were entangled into small coils, and buried in the surface of the stainless steel substrate. pits, thereby greatly improving the bonding force between carbon nanotubes and stainless steel substrates.
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