Processing of Single-Walled Carbon Nanotube Metal-Matrix Composites Manufactured by an Induction Heating Method

a carbon nanotube and composite material technology, applied in the field of carbon nanotubemetal composites, can solve the problems of poor thermal and electrical conductivity, poor strength, and general limited use of composite materials,

Inactive Publication Date: 2010-01-21
RICE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Certain metals, such as copper, display excellent thermal and electrical conductivities, but poor strength.
Other metals like titanium display remarkable strength and corrosion resistance, but poorer thermal and electrical conductivities.
Such composites, however, have generally been limited to those which comprise non-carbide forming metals because high-temperature processing of carbon nanotubes in carbide forming metals will generally lead to the destruction of the nanotubes.

Method used

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  • Processing of Single-Walled Carbon Nanotube Metal-Matrix Composites Manufactured by an Induction Heating Method
  • Processing of Single-Walled Carbon Nanotube Metal-Matrix Composites Manufactured by an Induction Heating Method
  • Processing of Single-Walled Carbon Nanotube Metal-Matrix Composites Manufactured by an Induction Heating Method

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[0033]The following experimental example is included to demonstrate particular aspects of the present invention. It should be appreciated by those of skill in the art that the methods disclosed in the examples that follows merely represent exemplary embodiments of the present invention. However, those of skill in the art should, in light of the present disclosure, appreciate that many changes can be made in the specific embodiments described and still obtain a like or similar result without departing from the spirit and scope of the present invention.

[0034]The present inventors conducted metallurgy research in an electromagnetic levitation (EML) facility where a conventional conical levitation coil was used.

[0035]Induction heating has been chosen as the present method since it provides rapid heat and cooling conditions and short transient times. Heating and melting the metal as fast as possible minimizes the possibility of the SWNTs changing morphology or chemically reacting with th...

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Abstract

In some embodiments, the present invention is directed to a new composition of matter. Such a composition generally comprises a functionalized single-wall carbon nanotube (SWNT) which is coated with a metal that would not react with carbon at elevated temperatures. The metal-coated tube is incorporated into a metal matrix that could potentially form carbides. In some or other embodiments, the present invention is directed to methods of making such compositions.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims priority under Title 35 United States Code, § 119 to U.S. Pat. App. Ser. No. 60 / 788,659 filed Apr. 3, 2006 and U.S. Pat. App. Ser. No. 60 / 874 / 856 filed Dec. 14, 2006.FIELD OF THE INVENTION[0002]The present invention relates generally to carbon nanotube-metal composites, and specifically to such composites with metals that are generally carbide-forming, but in which the carbon nanotubes remain intact.BACKGROUND OF THE INVENTION[0003]Matrix-reinforced materials science continues to be a rapidly evolving field of investigation both from the point of view of fundamental research as well as its industrial application. Metals can display a wide range of outstanding qualities. Certain metals, such as copper, display excellent thermal and electrical conductivities, but poor strength. Other metals like titanium display remarkable strength and corrosion resistance, but poorer thermal and electrical conductivities. Individual...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B22F3/105B22F1/00
CPCB22F2998/00B22F2998/10B82Y30/00C22C32/0084C22C47/14B22F3/1035B22F2202/07B22F1/025B22F1/0003B22F1/18B22F1/12
Inventor BARRERA, ENRIQUE V.BAYAZITOGLU, YILDIZWILSON, KENNETH
Owner RICE UNIV
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