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http://yadda.icm.edu.pl:80/baztech/element/bwmeta1.element.baztech-3d72fc48-2f67-4061-8054-af929b0ed86b

Czasopismo

Materials Science Poland

Tytuł artykułu

Raman spectroscopy and microwave dielectric properties of Sn substituted SrLa4Ti5O17 ceramics

Autorzy Manan, A.  Ullah, A.  Ahmad, A. S. 
Treść / Zawartość http://www.materialsscience.pwr.wroc.pl/ http://content.sciendo.com/view/journals/msp/msp-overview.xml
Warianty tytułu
Języki publikacji EN
Abstrakty
EN SrLa4Ti5-xSnxO17(0 ≤ x ≤ 2) ceramics were fabricated through solid state ceramic route and their microwave dielectric properties were investigated in an attempt to tune their temperature coefficient of resonant frequency to zero. The compositions were sintered to single phase SrLa4Ti5O17and SrLaa4Ti4,5Sn0,5O17ceramics at x = 0 and x = 0.5, and SrLa4Ti4-xSnxO17along with a small amount of La2Ti2O7at x = 1. The major phase observed at x = 2 was La2Ti2O7but along with SrLa4Ti4SnO17and SrLa4Ti4O15as the secondary phases. Τfdecreased from 117 to 23.0 ppm/°C but at the cost of dielectric constant ("r) and quality factor multiplied by resonant frequency (Qufo) which decreased from 65 to 33.6 and 11150 to 4191 GHz, respectively. The optimum microwave dielectric properties, i.e. τf= 38.6 ppm/°C, εr = 45.5 and = 7919 GHz, correspond to the SrLa4Ti5-xSnxO17composition with x = 1.
Słowa kluczowe
EN ceramics   microwave properties   Raman spectroscopy   SEM  
Wydawca Wrocław University of Science and Technology
Czasopismo Materials Science Poland
Rocznik 2016
Tom Vol. 34, No. 1
Strony 1--5
Opis fizyczny Bibliogr. 16 poz., rys., tab.
Twórcy
autor Manan, A.
  • Department of Physics, University of Science and Technology Bannu, 28100, KPK, Pakistan
autor Ullah, A.
  • School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070, China
autor Ahmad, A. S.
  • Department of Physics, University of Science and Technology Bannu, 28100, KPK, Pakistan
Bibliografia
[1] REANEY I.M.,IDLES D., J.Am.Ceram.Soc.,89 (2006),2068
[2] JAWAHAR I.N.,SANTHA N.I.,SEBASTIAN M.T.,MO- HANAN P., J.Mater.Res.,17(2002),3084.
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[5] CHEN Y.C.,TSAI J.M., Jpn.J.Appl.Phys.,47(2008), 7959.
[6] MANAN A.,IQBAL Y., J.Mater.Sci.Mater.Electron., 22(2011),1848.
[7] MANAN A.,IQBAL Y., Mater.Res.Bull.,47(2012), 883.
[8] FANG L., Mater.Res.Bull.,39(2004),1649.
[9] MANAN A.,HUSSAIN I., Int.J.Mod.Phys.B,28 (2014),1450092.
[10] RATHEESH R.,SREEMOOLANADHAN H.,SEBASTIAN M.T., J.SolidState.Chem.,131(1997),2.
[11] SHANNON R.D., Acta.Crystallogr.A,32(751)(1976), 751.
[12] ZHENG H., J.Mater.Res.,19(2004),488.
[13] LEVIN I., J.SolidState.Chem.,156(2001),122.
[14] HIRATA T.,ISHIOKA K.,KITAJIMA M., J.SolidState. Chem.,124(1996),353.
[15] HAO H., Appl.Phys.A,85(2006),69.
[16] SHANNON R.D., J.Appl.Phys.,73(1993),348.
Uwagi
Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.
Kolekcja BazTech
Identyfikator YADDA bwmeta1.element.baztech-3d72fc48-2f67-4061-8054-af929b0ed86b
Identyfikatory
DOI 10.1515/msp-2016-0005