barium titanate flakes based composites for microwave absorbing applications

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ID: 184431
2013
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Abstract
Barium titanate (BT) has attained research focus in recent past owing to considering its high dielectric constant and stealth capabilities in microwave region. Shape effects of BT viz. powder, micron size flakes, nanoparticles and nanotubes have been studied vastly for its stealth capabilities. Present study aims at the preparation of millimetric size barium titanate flakes (BTFs) via controlled sol-gel process followed by tape casting. BTFs were mixed in varied weight ratio (50–90 wt.%) with polyurethane resin to fabricate composite laminates. Electromagnetic properties measurement in X and Ku band revealed high values of real and imaginary permittivity. Reflection loss measurements demonstrated more than 20 dB loss in wide frequency range (11.4–13.6 GHz). For single layer microwave absorber, reflection loss values have been calculated and it is observed that calculated and measured reflection loss values are in good agreement to each other. Developed material can find applications in broadband radar signature reduction.
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jain2013processingbarium Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Raj Kumar Jain;Ashish Dubey;Amit Soni;Sanjiv Kumar Gupta;Trilok Chand Shami
Journal preventive veterinary medicine
Year 2013
DOI
10.2298/PAC1304189J
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