Role of mixing mediums in the synthesis of single phase CaCu3Ti4O12 (CCTO)

Rosyaini Afindi Zaman; Wan Fahmin Faiz Wan Ali; Mohamad Johari Abu; Julie Juliewatty Mohamed; Mohd. Fadzil Ain; Zainal Arifin Ahmad

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자료유형: 학술저널

저자정보: Rosyaini Afindi Zaman (Universiti Sains Malaysia) Wan Fahmin Faiz Wan Ali (Universiti Sains Malaysia) Mohamad Johari Abu (Universiti Sains Malaysia) Julie Juliewatty Mohamed (Universiti Sains Malaysia) Mohd. Fadzil Ain (Universiti Sains Malaysia) Zainal Arifin Ahmad (Universiti Sains Malaysia)

저널정보: 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제17권 제6호

발행연도: 2016.6

수록면: 626 - 631 (6page)

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The role of mixing mediums on synthesizing high purity CCTO as a function of calcination temperature was systematicallyinvestigated via solid state reaction (SSR) route. The efficacy of the mediums (ethanol, deionised water, distilled water, and drymix) was primarily determined by X-ray diffraction (XRD) technique and FESEM, respectively. It is found that, a single phaseCCTO was successfully synthesized in all mediums, with the deionised water showed the lowest reaction temperature (950 oC)to fully crystallize the powder mixtures compared to other mediums. No significant changes were seen in the grain shape sinceonly a bimodal structure with grain size ranging from 0.5 μm to 2.57 μm was observed. The effect of media was also seen intheir dielectric properties of the calcined powders. Dry mixing (DM) had the highest dielectric permittivity (εr = 118) whereasothers are only between 59-99. Therefore, this observation proved that mixing medium could influence the formationtemperature and dielectric properties of CCTO.

#Mixing medium #Calcination #XRD #CCTO #Dielectric properties

참고문헌 (26)

참고문헌 신청

J. Sebald / 2010 / Solid State Communication 150(7):857~860

W. F. F. Wan Ali / 2015 / J. Mater. : Mater. Electron 26(1):504~514

Julie J. Mohamed / 2011 / Effect of excess TiO2 in CaCu3Ti4O12 on the microstructure and dielectric properties / Journal of Ceramic Processing Research 12(5):496~499

X. Shan / 2012 / J. Adv. Ceram 1(4):310~316

J. Boonlakhorn / 2015 / J. Eur. Ceram. Soc 35(13):3521~3528

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