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The study of magnesium-doped calcium copper titanate (CaCu3Ti4O12) effect to the microstructural and electrical properties of Ca(Cu3-xMgx)Ti4O12

Anis Fatin Nabilah, Abdul Latif (2017) The study of magnesium-doped calcium copper titanate (CaCu3Ti4O12) effect to the microstructural and electrical properties of Ca(Cu3-xMgx)Ti4O12. Faculty of Industrial Sciences and Technology, Universiti Malaysia Pahang.

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Abstract

In this work, calcium copper titanate, CaCu3Ti4O12 (CCTO) with magnesium oxide, MgO composition of x = 0, 0.05 and 0.3 were prepared using the solid-state reaction method. Substitution of magnesium, Mg was seen to give slight changes to microstructure of CCTO ceramics, doping with small amount of Mg (x = 0.05) results in smaller grain size of ~2.54 μm, while doping with large amount of Mg (x = 0.3) promotes grain growth ~30 μm. The doping effect of Mg to CCTO was seen to be able to increase the dielectric permittivity with maximum dielectric permittivity shown by x = 0.05, ~ 4.53 × 106 at 1 kHz. However, the doping effect of Mg was not able to reduce the dielectric loss. The lowest dielectric loss at frequency 1 kHz obtained was shown by pure CCTO with a value of 0.014. Even though Mg-doped CCTO ceramics shows larger dielectric loss than pure CCTO, the amount obtained was lower compared to other research that uses MgO as dopant.

Item Type: Undergraduates Project Papers
Additional Information: Project Paper (Bachelor of Applied Science (Hons.) Material Technology) -- Universiti Malaysia Pahang – 2017; SV: MAZNI BINTI MUSTAFA; NO CD: 10887
Uncontrolled Keywords: calcium copper titanate; magnesium oxide
Subjects: Q Science > Q Science (General)
Faculty/Division: Faculty of Industrial Sciences And Technology
Depositing User: Ms. Nurezzatul Akmal Salleh
Date Deposited: 19 Dec 2017 03:35
Last Modified: 19 Dec 2017 03:35
URI: http://umpir.ump.edu.my/id/eprint/19288
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