High strength composite materials and related processes

A technology for reinforcing composite materials, composite materials, applied in the field of obtaining such composite materials, therefore, can solve the problems of poor dispersion of nanotubes, short length of nanotubes, and lack of excellent directionality of nanotubes and nanofibers Improvement and other issues

Inactive Publication Date: 2009-07-15
CLEVELAND STATE UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These disadvantages include: poor dispersion of nanotubes in the matrix, mainly due to van der Waals forces; poor alignment and orientation of nanotubes in the matrix; short length of nanotubes relative to defect size in composite matrices; difficulty in processing with industrial-scale methods randomly oriented nanotubes
[0011] In summary, the currently known methods of introducing randomly oriented nanotubes and / or low-performance and low-cost nanofibers in composite materials lead to isotropic matrices with only moderate contribution to the properties and performance of the obtained materials. improvement
The obtained materials do not have the designed amount of improvement based on the excellent directionality of nanotubes and nanofibers

Method used

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  • High strength composite materials and related processes
  • High strength composite materials and related processes
  • High strength composite materials and related processes

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Embodiment approach

[0126]It is worth noting that in the previous work of the composite material using boron nitride nanotubes reported by the inventor, it has been confirmed that the strength of the glass fuel cell sealing material can be obtained by introducing 4% boron nitride nanotubes into the glass matrix. Significantly improved. The results show that by adding nanotubes, the strength is almost doubled and the matrix fracture toughness is improved by 40%, as shown in Figures 12 and 13. The length of the boron nitride nanotubes in those studies is on the order of 200-300 μm. Specifically, FIG. 12 is a graph of fracture toughness of commercially available glass G18 and G18 glass reinforced with boron nitride nanotubes (BN NT) used in those studies. Fracture toughness expressed as K Ic [MPa m 0.5 ]. Figure 13 is a diagram illustrating the Weibull intensity distribution of those materials in detail. The Weibull intensity distribution is Inln[1 / (1-F)]. M is the Weibull modulus and ζ θ Is the charact...

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Abstract

Composite materials exhibiting very high strength properties and other characteristics are disclosed. The materials comprise one or more nanomaterials dispersed within one or more matrix materials. The nanomaterials can be in a variety of forms, such as for example, carbon nanotubes and / or nanofibers. The matrix material can be glass, fused silicas, or metal. Also disclosed are various processes and operations to readily disperse and uniformly align the nanotubes and / or nanofibers in the flowing matrix material, during production of the composite materials.

Description

[0001] Cross reference about application [0002] This application claims the priority of U.S. Provisional Application 60 / 812,389 filed on June 9, 2006, which is hereby incorporated by reference. Background technique [0003] The present invention relates to composite materials using nano materials or nano structures. The composite materials have high strength performance and other beneficial characteristics. The invention also relates to various methods of producing such composite materials. The present invention finds specific applications of composite materials using specific nanostructures such as nanotubes and nanofibers, which are described by specific reference. However, it should be understood that the present invention can also be used in other similar applications. For example, the present invention also relates to composite materials and methods using other nanostructures other than nanotubes and nanofibers. [0004] Many researchers are very interested in the discovery ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C14/00C23C26/02B82B1/00
CPCC03C13/00C03C2213/04C03C14/002C03C4/12Y10T428/12542Y10T428/2927Y10T428/249924Y10T428/249927Y10T428/249929
Inventor 泰西尔·H.·纳伊菲
Owner CLEVELAND STATE UNIVERSITY
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