Shared more. Cited more. Safe forever.
    • advanced search
    • submit works
    • about
    • help
    • contact us
    • login
    View Item 
    •   MOspace Home
    • University of Missouri-Columbia
    • Office of Undergraduate Research (MU)
    • Undergraduate Research and Creative Achievements Forum (MU)
    • 2008 Undergraduate Research and Creative Achievements Forum (MU)
    • View Item
    •   MOspace Home
    • University of Missouri-Columbia
    • Office of Undergraduate Research (MU)
    • Undergraduate Research and Creative Achievements Forum (MU)
    • 2008 Undergraduate Research and Creative Achievements Forum (MU)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.
    advanced searchsubmit worksabouthelpcontact us

    Browse

    All of MOspaceCommunities & CollectionsDate IssuedAuthor/ContributorTitleIdentifierThesis DepartmentThesis AdvisorThesis SemesterThis CollectionDate IssuedAuthor/ContributorTitleIdentifierThesis DepartmentThesis AdvisorThesis Semester

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular AuthorsStatistics by Referrer

    Electric arc production of nanoparticles for energetic materials [abstract]

    Tappmeyer, Daniel
    Shub, Maxim
    Thiruvengadathan, Rajagopalan
    Bezmelnitsyn, Andrey
    Gangopadhyay, Keshab
    Apperson, Steven J., 1982-
    Gangopadhyay, Shubhra
    View/Open
    [PDF] ElectricArcProductionNanoparticles.pdf (28.39Kb)
    Date
    2008
    Contributor
    University of Missouri-Columbia. Office of Undergraduate Research
    Format
    Presentation
    Metadata
    [+] Show full item record
    Abstract
    Thermites are a class of energetic material (similar to explosives) which consists of a fuel and oxidizer which react chemically to release energy. These materials are of interest because they can contain over 2.5 times more energy than TNT and they can be made from relatively benign components. The rate at which these materials react depends on the size of the fuel and oxidizer particles. Traditionally prepared thermites have relatively large particle sizes and therefore tend to react slowly. We are producing a new type of thermite called super-thermite which uses very small particles known as nanoparticles. These small particles of fuel and oxidizer react much more quickly than traditionally prepared thermites. Using this method we can prepare super-thermites which burn at over 2,000 meters/second. These properties make super-thermite an ideal replacement for several toxic lead containing energetic materials. However, super-thermite materials are currently too expensive for most applications. We are researching several new methods of preparing nanoparticles for super-thermite which will reduce their cost. One method we are using is called plasma arc-discharge, and actually very similar to an arc welding process. In arc welding electricity is used to form plasma arc. The heat from the arc melts the metals and fuses them together. In our process we continue to heat the material until it evaporates and forms a vapor. When the vapor cools it condenses forming nanoparticles. This process has been used previously to prepare nanoparticles of aluminum, silicon, and copper oxide. In the near future we will extend this method to other materials as well. The benefit of this method is nanoparticles can be prepared from relatively affordable bulk materials. Using this method we hope reduce the cost of preparing super-thermite from over $20.00/gram to less than $0.25 per gram
    URI
    http://hdl.handle.net/10355/2035
    Part of
    2008 Undergraduate Research and Creative Achievements Forum (MU)
    Collections
    • 2008 Undergraduate Research and Creative Achievements Forum (MU)

    Send Feedback
    hosted by University of Missouri Library Systems
     

     


    Send Feedback
    hosted by University of Missouri Library Systems