Barium titanate flakes based composites for microwave absorbing applications
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. Pres...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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University of Novi Sad
2013-12-01
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| Series: | Processing and Application of Ceramics |
| Subjects: | |
| Online Access: | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2022%2007.pdf |
| _version_ | 1819096428885049344 |
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| author | Raj Kumar Jain Ashish Dubey Amit Soni Sanjiv Kumar Gupta Trilok Chand Shami |
| author_facet | Raj Kumar Jain Ashish Dubey Amit Soni Sanjiv Kumar Gupta Trilok Chand Shami |
| author_sort | Raj Kumar Jain |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-12-21T23:59:03Z |
| format | Article |
| id | doaj.art-905bbdf17dc7432ca10e3faa240fe3f5 |
| institution | Directory Open Access Journal |
| issn | 1820-6131 1820-6131 |
| language | English |
| last_indexed | 2024-12-21T23:59:03Z |
| publishDate | 2013-12-01 |
| publisher | University of Novi Sad |
| record_format | Article |
| series | Processing and Application of Ceramics |
| spelling | doaj.art-905bbdf17dc7432ca10e3faa240fe3f52022-12-21T18:45:45ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61311820-61312013-12-017418919310.2298/PAC1304189JBarium titanate flakes based composites for microwave absorbing applicationsRaj Kumar Jain0Ashish Dubey1Amit Soni2Sanjiv Kumar Gupta3Trilok Chand Shami4Defence Materials and Stores Research and Development Establishment, G.T. Road, Kanpur - 208013, IndiaDefence Materials and Stores Research and Development Establishment, G.T. Road, Kanpur - 208013, IndiaDefence Materials and Stores Research and Development Establishment, G.T. Road, Kanpur - 208013, IndiaHarcourt Butler Technological Institute, Nawabganj, Kanpur - 208002, IndiaDefence Materials and Stores Research and Development Establishment, G.T. Road, Kanpur - 208013, IndiaBarium 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.http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2022%2007.pdfbarium titanate flakesdielectric propertiesmicrowave absorbers |
| spellingShingle | Raj Kumar Jain Ashish Dubey Amit Soni Sanjiv Kumar Gupta Trilok Chand Shami Barium titanate flakes based composites for microwave absorbing applications Processing and Application of Ceramics barium titanate flakes dielectric properties microwave absorbers |
| title | Barium titanate flakes based composites for microwave absorbing applications |
| title_full | Barium titanate flakes based composites for microwave absorbing applications |
| title_fullStr | Barium titanate flakes based composites for microwave absorbing applications |
| title_full_unstemmed | Barium titanate flakes based composites for microwave absorbing applications |
| title_short | Barium titanate flakes based composites for microwave absorbing applications |
| title_sort | barium titanate flakes based composites for microwave absorbing applications |
| topic | barium titanate flakes dielectric properties microwave absorbers |
| url | http://www.tf.uns.ac.rs/publikacije/PAC/pdf/PAC%2022%2007.pdf |
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