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Selected Works of Ravi L. Hadimani
Article
Gadolinium silicide (Gd5Si4) nanoparticles for tuneable broad band microwave absorption
Ames Laboratory Accepted Manuscripts
  • Pritom J. Bora, Indian Institute of Science
  • S. M. Harstad, Virginia Commonwealth University
  • Shalabh Gupta, Ames Laboratory
  • Vitalij K. Pecharsky, Iowa State University and Ames Laboratory
  • K. J. Vinoy, Indian Institute of Science
  • Praveen C. Ramamurthy, Indian Institute of Science
  • Ravi L. Hadimani, Iowa State University and Virginia Commonwealth University
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Publication Date
1-10-2019
Department
Ames Laboratory; Materials Science and Engineering
OSTI ID+
1501618
Report Number
IS-J 9907
DOI
10.1088/2053-1591/aafd55
Journal Title
Materials Research Express
Abstract

Soft magnetic Gd5Si4 nanoparticles exhibit excellent microwave absorption in the Ku-band (12.4-18 GHz) when dispersed in poly (dimethyl siloxane), PDMS. The minimum experimentally recorded reflection loss (RL) of Gd5Si4-PDMS nanocomposite is −69 dB, with a large bandwidth for a single 6 mm-thick layer. The bandwidth can be further extended by using a novel design where 1 mm-thick layers of the nanocomposite are arranged into a modified pyramid-shaped absorber. Standard electromagnetic (EM) simulations confirm experimental results.

DOE Contract Number(s)
AC02-07CH11358
Language
en
Publisher
Iowa State University Digital Repository, Ames IA (United States)
Disciplines
Citation Information
Pritom J. Bora, S. M. Harstad, Shalabh Gupta, Vitalij K. Pecharsky, et al.. "Gadolinium silicide (Gd5Si4) nanoparticles for tuneable broad band microwave absorption" Vol. 6 Iss. 5 (2019) p. 055053
Available at: http://works.bepress.com/rlhadimani/36/