News Column

Researchers at Rice University Report New Data on Materials Science

February 11, 2014



By a News Reporter-Staff News Editor at Journal of Technology -- A new study on Materials Science is now available. According to news reporting originating from Houston, Texas, by VerticalNews correspondents, research stated, "Deicing heating layers are frequently used in covers of large radio-frequency (RF) equipment, such as radar, to remove ice that could damage the structures or make them unstable. Typically, the deicers are made using a metal framework and inorganic insulator; commercial resistive heating materials are often nontransparent to RF waves."

Our news editors obtained a quote from the research from Rice University, "The preparation of a sub-skin-depth thin film, whose thickness is very small relative to the RF skin (or penetration) depth, is the key to minimizing the RF absorption. The skin depth of typical metals is on the order of a micrometer at the gigahertz frequency range. As a result, it is very difficult for conventional conductive materials (such as metals) to form large-area sub-skin-depth films. In this report, we disclose a new deicing heating layer composite made using graphene nanoribbons (GNRs). We demonstrate that the GNR film is thin enough to permit RF transmission. This metal-free, ultralight, robust, and scalable graphene-based RF-transparent conductive coating could significantly reduce the size and cost of deicing coatings for RF equipment covers. This is important in many aviation and marine applications."

According to the news editors, the research concluded: "This is a demonstration of the efficacy and applicability of GNRs to afford performances unattainable by conventional materials."

For more information on this research see: Radio-Frequency-Transparent, Electrically Conductive Graphene Nanoribbon Thin Films as Deicing Heating Layers. ACS Applied Materials & Interfaces, 2014;6(1):298-304. ACS Applied Materials & Interfaces can be contacted at: Amer Chemical Soc, 1155 16TH St, NW, Washington, DC 20036, USA. (American Chemical Society - www.acs.org; ACS Applied Materials & Interfaces - www.pubs.acs.org/journal/aamick)

The news editors report that additional information may be obtained by contacting V. Volman, Rice University, Dept. of Mech Engn & Mat Sci, Houston, TX 77005, United States. Additional authors for this research include Y. Zhu, A.R.O. Raji, B. Genorio, W. Lu, C.S. Xiang, C. Kittrell and J.M. Tour.

Keywords for this news article include: Texas, Houston, United States, Materials Science, North and Central America

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Source: Journal of Technology


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