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Temperature Stable Cold Sintered (Bi 0.95 Li 0.05 )(V 0.9 Mo 0.1 )O 4 -Na 2 Mo 2 O 7 Microwave Dielectric Composites
Dense (Bi Li )(V Mo )O -Na Mo O (100-x) wt.% (Bi Li )(V Mo )O (BLVMO)-x wt.% Na Mo O (NMO) composite ceramics were successfully fabricated through cold sintering at 150 °C under at 200 MPa for 30 min. X-ray diffraction, back-scattered scanning electron microscopy, and Raman spectroscopy not only cor...
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| Published in: | Materials 2019-04, Vol.12 (9) |
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| Main Authors: | , , , , , , , , |
| Format: | Article |
| Language: | English |
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| container_issue | 9 |
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| container_title | Materials |
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| creator | Wang, Dawei Zhang, Shiyu Zhou, Di Song, Kaixin Feteira, Antonio Vardaxoglou, Yiannis Whittow, Will Cadman, Darren Reaney, Ian M |
| description | Dense (Bi
Li
)(V
Mo
)O
-Na
Mo
O
(100-x) wt.% (Bi
Li
)(V
Mo
)O
(BLVMO)-x wt.% Na
Mo
O
(NMO) composite ceramics were successfully fabricated through cold sintering at 150 °C under at 200 MPa for 30 min. X-ray diffraction, back-scattered scanning electron microscopy, and Raman spectroscopy not only corroborated the coexistence of BLVMO and NMO phases in all samples, but also the absence of parasitic phases and interdiffusion. With increasing NMO concentration, the relative pemittivity (
) and the Temperature Coefficient of resonant Frequency (TCF) decreased, whereas the Microwave Quality Factor (
) increased. Near-zero TCF was measured for BLVMO-20wt.%NMO composites which exhibited
~ 40 and
~ 4000 GHz. Finally, a dielectric Graded Radial INdex (GRIN) lens was simulated using the range of
in the BLVMO-NMO system, which predicted a 70% aperture efficiency at 26 GHz, ideal for 5G applications. |
| doi_str_mv | 10.3390/ma12091370 |
| format | article |
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Li
)(V
Mo
)O
-Na
Mo
O
(100-x) wt.% (Bi
Li
)(V
Mo
)O
(BLVMO)-x wt.% Na
Mo
O
(NMO) composite ceramics were successfully fabricated through cold sintering at 150 °C under at 200 MPa for 30 min. X-ray diffraction, back-scattered scanning electron microscopy, and Raman spectroscopy not only corroborated the coexistence of BLVMO and NMO phases in all samples, but also the absence of parasitic phases and interdiffusion. With increasing NMO concentration, the relative pemittivity (
) and the Temperature Coefficient of resonant Frequency (TCF) decreased, whereas the Microwave Quality Factor (
) increased. Near-zero TCF was measured for BLVMO-20wt.%NMO composites which exhibited
~ 40 and
~ 4000 GHz. Finally, a dielectric Graded Radial INdex (GRIN) lens was simulated using the range of
in the BLVMO-NMO system, which predicted a 70% aperture efficiency at 26 GHz, ideal for 5G applications.</description><identifier>ISSN: 1996-1944</identifier><identifier>EISSN: 1996-1944</identifier><identifier>DOI: 10.3390/ma12091370</identifier><identifier>PMID: 31035538</identifier><language>eng</language><publisher>Switzerland</publisher><ispartof>Materials, 2019-04, Vol.12 (9)</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0000-0002-4622-1234 ; 0000-0001-6957-2494</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31035538$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Wang, Dawei</creatorcontrib><creatorcontrib>Zhang, Shiyu</creatorcontrib><creatorcontrib>Zhou, Di</creatorcontrib><creatorcontrib>Song, Kaixin</creatorcontrib><creatorcontrib>Feteira, Antonio</creatorcontrib><creatorcontrib>Vardaxoglou, Yiannis</creatorcontrib><creatorcontrib>Whittow, Will</creatorcontrib><creatorcontrib>Cadman, Darren</creatorcontrib><creatorcontrib>Reaney, Ian M</creatorcontrib><title>Temperature Stable Cold Sintered (Bi 0.95 Li 0.05 )(V 0.9 Mo 0.1 )O 4 -Na 2 Mo 2 O 7 Microwave Dielectric Composites</title><title>Materials</title><addtitle>Materials (Basel)</addtitle><description>Dense (Bi
Li
)(V
Mo
)O
-Na
Mo
O
(100-x) wt.% (Bi
Li
)(V
Mo
)O
(BLVMO)-x wt.% Na
Mo
O
(NMO) composite ceramics were successfully fabricated through cold sintering at 150 °C under at 200 MPa for 30 min. X-ray diffraction, back-scattered scanning electron microscopy, and Raman spectroscopy not only corroborated the coexistence of BLVMO and NMO phases in all samples, but also the absence of parasitic phases and interdiffusion. With increasing NMO concentration, the relative pemittivity (
) and the Temperature Coefficient of resonant Frequency (TCF) decreased, whereas the Microwave Quality Factor (
) increased. Near-zero TCF was measured for BLVMO-20wt.%NMO composites which exhibited
~ 40 and
~ 4000 GHz. Finally, a dielectric Graded Radial INdex (GRIN) lens was simulated using the range of
in the BLVMO-NMO system, which predicted a 70% aperture efficiency at 26 GHz, ideal for 5G applications.</description><issn>1996-1944</issn><issn>1996-1944</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqFjk9rwkAUxBdRVGwufoDyjvEQu5uXVPdaq3jwz0HxGtbkCVuyTdjdtPTbN4EKvTmX3zAMwzA2FXyOKPmLUSLmUuCC99hYSPkaCZkk_X9-xALnPngrRLGM5ZCNUHBMU1yOmT-Tqckq31iCk1fXkmBVlQWc9KcnSwWEbxr4XKaw68hTmIWXLoB91ULA7AgJRAcFcZfEcIQF7HVuq2_1RfCuqaTcW523s6aunPbkntjgpkpHwR8n7HmzPq-2Ud1cDRVZbbVR9ie738SHhV8vK0gr</recordid><startdate>20190427</startdate><enddate>20190427</enddate><creator>Wang, Dawei</creator><creator>Zhang, Shiyu</creator><creator>Zhou, Di</creator><creator>Song, Kaixin</creator><creator>Feteira, Antonio</creator><creator>Vardaxoglou, Yiannis</creator><creator>Whittow, Will</creator><creator>Cadman, Darren</creator><creator>Reaney, Ian M</creator><scope>NPM</scope><orcidid>https://orcid.org/0000-0002-4622-1234</orcidid><orcidid>https://orcid.org/0000-0001-6957-2494</orcidid></search><sort><creationdate>20190427</creationdate><title>Temperature Stable Cold Sintered (Bi 0.95 Li 0.05 )(V 0.9 Mo 0.1 )O 4 -Na 2 Mo 2 O 7 Microwave Dielectric Composites</title><author>Wang, Dawei ; Zhang, Shiyu ; Zhou, Di ; Song, Kaixin ; Feteira, Antonio ; Vardaxoglou, Yiannis ; Whittow, Will ; Cadman, Darren ; Reaney, Ian M</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-pubmed_primary_310355383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Dawei</creatorcontrib><creatorcontrib>Zhang, Shiyu</creatorcontrib><creatorcontrib>Zhou, Di</creatorcontrib><creatorcontrib>Song, Kaixin</creatorcontrib><creatorcontrib>Feteira, Antonio</creatorcontrib><creatorcontrib>Vardaxoglou, Yiannis</creatorcontrib><creatorcontrib>Whittow, Will</creatorcontrib><creatorcontrib>Cadman, Darren</creatorcontrib><creatorcontrib>Reaney, Ian M</creatorcontrib><collection>PubMed</collection><jtitle>Materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Wang, Dawei</au><au>Zhang, Shiyu</au><au>Zhou, Di</au><au>Song, Kaixin</au><au>Feteira, Antonio</au><au>Vardaxoglou, Yiannis</au><au>Whittow, Will</au><au>Cadman, Darren</au><au>Reaney, Ian M</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Temperature Stable Cold Sintered (Bi 0.95 Li 0.05 )(V 0.9 Mo 0.1 )O 4 -Na 2 Mo 2 O 7 Microwave Dielectric Composites</atitle><jtitle>Materials</jtitle><addtitle>Materials (Basel)</addtitle><date>2019-04-27</date><risdate>2019</risdate><volume>12</volume><issue>9</issue><issn>1996-1944</issn><eissn>1996-1944</eissn><abstract>Dense (Bi
Li
)(V
Mo
)O
-Na
Mo
O
(100-x) wt.% (Bi
Li
)(V
Mo
)O
(BLVMO)-x wt.% Na
Mo
O
(NMO) composite ceramics were successfully fabricated through cold sintering at 150 °C under at 200 MPa for 30 min. X-ray diffraction, back-scattered scanning electron microscopy, and Raman spectroscopy not only corroborated the coexistence of BLVMO and NMO phases in all samples, but also the absence of parasitic phases and interdiffusion. With increasing NMO concentration, the relative pemittivity (
) and the Temperature Coefficient of resonant Frequency (TCF) decreased, whereas the Microwave Quality Factor (
) increased. Near-zero TCF was measured for BLVMO-20wt.%NMO composites which exhibited
~ 40 and
~ 4000 GHz. Finally, a dielectric Graded Radial INdex (GRIN) lens was simulated using the range of
in the BLVMO-NMO system, which predicted a 70% aperture efficiency at 26 GHz, ideal for 5G applications.</abstract><cop>Switzerland</cop><pmid>31035538</pmid><doi>10.3390/ma12091370</doi><orcidid>https://orcid.org/0000-0002-4622-1234</orcidid><orcidid>https://orcid.org/0000-0001-6957-2494</orcidid></addata></record> |
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| issn | 1996-1944 1996-1944 |
| language | eng |
| recordid | cdi_pubmed_primary_31035538 |
| source | Publicly Available Content Database; PubMed Central; Free Full-Text Journals in Chemistry |
| title | Temperature Stable Cold Sintered (Bi 0.95 Li 0.05 )(V 0.9 Mo 0.1 )O 4 -Na 2 Mo 2 O 7 Microwave Dielectric Composites |
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