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Complex permittivity, permeability and microwave absorbing studies of (Co 2− x Mn x ) U-type hexaferrite for X-band (8.2–12.4 GHz) frequencies
In order to develop a new microwave absorbing material over the X-band (8.2–12.4 GHz) frequency range, polycrystalline samples of U-type hexaferrite series: Ba 4Co 2− x Mn x Fe 36O 60, with x varying from 0 to 2.0 in steps of 0.5, were prepared through conventional solid state reaction route. X-ray...
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| Published in: | Materials science & engineering. B, Solid-state materials for advanced technology Solid-state materials for advanced technology, 2010-07, Vol.171 (1), p.133-138 |
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| cites | cdi_FETCH-LOGICAL-c365t-a8752eb46f9e92aafe038678a06e7a6cc675d68c8fdc4ddddf53744154c8aa03 |
| container_end_page | 138 |
| container_issue | 1 |
| container_start_page | 133 |
| container_title | Materials science & engineering. B, Solid-state materials for advanced technology |
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| creator | Meena, R.S. Bhattachrya, Sudeshna Chatterjee, Ratnamala |
| description | In order to develop a new microwave absorbing material over the X-band (8.2–12.4
GHz) frequency range, polycrystalline samples of U-type hexaferrite series: Ba
4Co
2−
x
Mn
x
Fe
36O
60, with
x varying from 0 to 2.0 in steps of 0.5, were prepared through conventional solid state reaction route. X-ray diffraction analysis was done to find the structural change with composition. The variation of electromagnetic parameters (complex permittivity
ɛ*
=
ɛ′
−
jɛ′′ and complex permeability
μ*
=
μ′
−
jμ′′) and microwave absorbing properties were studied over the X-band frequency range with varying composition. Both dielectric loss (
ɛ′′) and magnetic loss (
μ′′) were found to decrease with increasing
x, whereas the dielectric constant (
ɛ′) and magnetic permeability (
μ′) variations are reciprocal with Mn addition. Composition with
x
=
1, presenting a maximum value of microwave absorption of 99.84% (or reflection loss
R
L
=
−28.4
dB) at 8.45
GHz when sample thickness is 1.7
mm. This composition also offered wide band absorption (>96%) throughout the X-band frequencies where it can be used for suppressing electromagnetic interference and radar signature. |
| doi_str_mv | 10.1016/j.mseb.2010.03.086 |
| format | article |
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GHz) frequency range, polycrystalline samples of U-type hexaferrite series: Ba
4Co
2−
x
Mn
x
Fe
36O
60, with
x varying from 0 to 2.0 in steps of 0.5, were prepared through conventional solid state reaction route. X-ray diffraction analysis was done to find the structural change with composition. The variation of electromagnetic parameters (complex permittivity
ɛ*
=
ɛ′
−
jɛ′′ and complex permeability
μ*
=
μ′
−
jμ′′) and microwave absorbing properties were studied over the X-band frequency range with varying composition. Both dielectric loss (
ɛ′′) and magnetic loss (
μ′′) were found to decrease with increasing
x, whereas the dielectric constant (
ɛ′) and magnetic permeability (
μ′) variations are reciprocal with Mn addition. Composition with
x
=
1, presenting a maximum value of microwave absorption of 99.84% (or reflection loss
R
L
=
−28.4
dB) at 8.45
GHz when sample thickness is 1.7
mm. This composition also offered wide band absorption (>96%) throughout the X-band frequencies where it can be used for suppressing electromagnetic interference and radar signature.</description><identifier>ISSN: 0921-5107</identifier><identifier>EISSN: 1873-4944</identifier><identifier>DOI: 10.1016/j.mseb.2010.03.086</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Absorbing ; Absorption ; Complex permeability ; Complex permittivity ; Dielectric loss ; Frequency ranges ; Magnetic permeability ; Manganese ; Microwave absorption ; Microwaves ; Permeability ; U-type hexaferrite ; X-band</subject><ispartof>Materials science & engineering. B, Solid-state materials for advanced technology, 2010-07, Vol.171 (1), p.133-138</ispartof><rights>2010 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c365t-a8752eb46f9e92aafe038678a06e7a6cc675d68c8fdc4ddddf53744154c8aa03</citedby><cites>FETCH-LOGICAL-c365t-a8752eb46f9e92aafe038678a06e7a6cc675d68c8fdc4ddddf53744154c8aa03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Meena, R.S.</creatorcontrib><creatorcontrib>Bhattachrya, Sudeshna</creatorcontrib><creatorcontrib>Chatterjee, Ratnamala</creatorcontrib><title>Complex permittivity, permeability and microwave absorbing studies of (Co 2− x Mn x ) U-type hexaferrite for X-band (8.2–12.4 GHz) frequencies</title><title>Materials science & engineering. B, Solid-state materials for advanced technology</title><description>In order to develop a new microwave absorbing material over the X-band (8.2–12.4
GHz) frequency range, polycrystalline samples of U-type hexaferrite series: Ba
4Co
2−
x
Mn
x
Fe
36O
60, with
x varying from 0 to 2.0 in steps of 0.5, were prepared through conventional solid state reaction route. X-ray diffraction analysis was done to find the structural change with composition. The variation of electromagnetic parameters (complex permittivity
ɛ*
=
ɛ′
−
jɛ′′ and complex permeability
μ*
=
μ′
−
jμ′′) and microwave absorbing properties were studied over the X-band frequency range with varying composition. Both dielectric loss (
ɛ′′) and magnetic loss (
μ′′) were found to decrease with increasing
x, whereas the dielectric constant (
ɛ′) and magnetic permeability (
μ′) variations are reciprocal with Mn addition. Composition with
x
=
1, presenting a maximum value of microwave absorption of 99.84% (or reflection loss
R
L
=
−28.4
dB) at 8.45
GHz when sample thickness is 1.7
mm. This composition also offered wide band absorption (>96%) throughout the X-band frequencies where it can be used for suppressing electromagnetic interference and radar signature.</description><subject>Absorbing</subject><subject>Absorption</subject><subject>Complex permeability</subject><subject>Complex permittivity</subject><subject>Dielectric loss</subject><subject>Frequency ranges</subject><subject>Magnetic permeability</subject><subject>Manganese</subject><subject>Microwave absorption</subject><subject>Microwaves</subject><subject>Permeability</subject><subject>U-type hexaferrite</subject><subject>X-band</subject><issn>0921-5107</issn><issn>1873-4944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNp9UcFuEzEQtRBIhMIPcPKNVGIX2-u1HYkLiqBFKuJSJG6W1zsGR7vrxXbShFOPPZc_7JfgEM71YawZvfdG8x5CrympKaHi3aYeE3Q1I2VAmpoo8QQtqJJNxVecP0ULsmK0aimRz9GLlDaEEMoYW6D7dRjnAfZ4hjj6nP3O58Pbfx2Yzg-lw2bq8ehtDDdmB9h0KcTOTz9wytveQ8LB4eU6YPZwd4_3-MtUyjn-VuXDDPgn7I2DGH0G7ELE36vuKLdUNXu4_UNZzfHF5e9z7CL82sJki95L9MyZIcGr__8Zuv708Xp9WV19vfi8_nBV2Ua0uTJKtgw6LtwKVsyULaRRQipDBEgjrBWy7YWyyvWW9-W5tpGc05ZbZQxpztCbk-wcQ1mdsh59sjAMZoKwTVoqWRwilBfk8lEklUpQIRqqCpSdoMWtlCI4PUc_mnjQlOhjUnqjj0npY1KaNLokVUjvTyQo1-48RJ2KD5OF3kewWffBP0b_CzuXngo</recordid><startdate>20100725</startdate><enddate>20100725</enddate><creator>Meena, R.S.</creator><creator>Bhattachrya, Sudeshna</creator><creator>Chatterjee, Ratnamala</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20100725</creationdate><title>Complex permittivity, permeability and microwave absorbing studies of (Co 2− x Mn x ) U-type hexaferrite for X-band (8.2–12.4 GHz) frequencies</title><author>Meena, R.S. ; Bhattachrya, Sudeshna ; Chatterjee, Ratnamala</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c365t-a8752eb46f9e92aafe038678a06e7a6cc675d68c8fdc4ddddf53744154c8aa03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Absorbing</topic><topic>Absorption</topic><topic>Complex permeability</topic><topic>Complex permittivity</topic><topic>Dielectric loss</topic><topic>Frequency ranges</topic><topic>Magnetic permeability</topic><topic>Manganese</topic><topic>Microwave absorption</topic><topic>Microwaves</topic><topic>Permeability</topic><topic>U-type hexaferrite</topic><topic>X-band</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Meena, R.S.</creatorcontrib><creatorcontrib>Bhattachrya, Sudeshna</creatorcontrib><creatorcontrib>Chatterjee, Ratnamala</creatorcontrib><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Materials science & engineering. B, Solid-state materials for advanced technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Meena, R.S.</au><au>Bhattachrya, Sudeshna</au><au>Chatterjee, Ratnamala</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Complex permittivity, permeability and microwave absorbing studies of (Co 2− x Mn x ) U-type hexaferrite for X-band (8.2–12.4 GHz) frequencies</atitle><jtitle>Materials science & engineering. B, Solid-state materials for advanced technology</jtitle><date>2010-07-25</date><risdate>2010</risdate><volume>171</volume><issue>1</issue><spage>133</spage><epage>138</epage><pages>133-138</pages><issn>0921-5107</issn><eissn>1873-4944</eissn><abstract>In order to develop a new microwave absorbing material over the X-band (8.2–12.4
GHz) frequency range, polycrystalline samples of U-type hexaferrite series: Ba
4Co
2−
x
Mn
x
Fe
36O
60, with
x varying from 0 to 2.0 in steps of 0.5, were prepared through conventional solid state reaction route. X-ray diffraction analysis was done to find the structural change with composition. The variation of electromagnetic parameters (complex permittivity
ɛ*
=
ɛ′
−
jɛ′′ and complex permeability
μ*
=
μ′
−
jμ′′) and microwave absorbing properties were studied over the X-band frequency range with varying composition. Both dielectric loss (
ɛ′′) and magnetic loss (
μ′′) were found to decrease with increasing
x, whereas the dielectric constant (
ɛ′) and magnetic permeability (
μ′) variations are reciprocal with Mn addition. Composition with
x
=
1, presenting a maximum value of microwave absorption of 99.84% (or reflection loss
R
L
=
−28.4
dB) at 8.45
GHz when sample thickness is 1.7
mm. This composition also offered wide band absorption (>96%) throughout the X-band frequencies where it can be used for suppressing electromagnetic interference and radar signature.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.mseb.2010.03.086</doi><tpages>6</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0921-5107 |
| ispartof | Materials science & engineering. B, Solid-state materials for advanced technology, 2010-07, Vol.171 (1), p.133-138 |
| issn | 0921-5107 1873-4944 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_787222014 |
| source | ScienceDirect Freedom Collection |
| subjects | Absorbing Absorption Complex permeability Complex permittivity Dielectric loss Frequency ranges Magnetic permeability Manganese Microwave absorption Microwaves Permeability U-type hexaferrite X-band |
| title | Complex permittivity, permeability and microwave absorbing studies of (Co 2− x Mn x ) U-type hexaferrite for X-band (8.2–12.4 GHz) frequencies |
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