Studies of structural and electrical properties of La-Mg-Mn-Ti-O ceramic

Siti Hashimah bt Mohamad Hanif; Walter Charles Primus; Khamirul Amin Matori; Josephine Liew Ying Chyi; Aaliyawani Ezzerin Sinin

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자료유형: 학술저널

저자정보: Siti Hashimah bt Mohamad Hanif (Universiti Putra Malaysia) Walter Charles Primus (Universiti Putra Malaysia) Khamirul Amin Matori (Universiti Putra Malaysia) Josephine Liew Ying Chyi (Universiti Putra Malaysia) Aaliyawani Ezzerin Sinin (Universiti Putra Malaysia)

저널정보: 한양대학교 세라믹공정연구센터 Journal of Ceramic Processing Research Journal of Ceramic Processing Research 제24권 제3호

발행연도: 2023.6

수록면: 446 - 452 (7page)

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The samples with chemical formula La1-xMgxMn0.4Ti0.6O3 (x = 0.30, 0.40 and 0.50) were synthesized using solid-state reactionmethod. XRD of the samples shown the samples pattern attributed to the cubic structure with ‘a’ = 3.8943 and its space groupPm3m. The SEM images display microstructure of the sample were porous and the grains are merged with unequal sizesdistributed inhomogeously throughout the samples with irregular boundaries. The sample of x = 0.4 was the most porous thanthe others. The electrical properties were measured using LCR meter with the frequency range from 0.01 Hz until 100 KHzand in a temperature range of 313 K until 373 K. The electrical properties of the samples were study by analyzed the dielectricconstant, ε’, dielectric loss, ε”, and tan δ. The results for dielectric constant and dielectric loss showed the higher values werelocated at lower frequency region which suggest that the samples were having interfacial polarization. Tan δ shows the lowervalue at higher frequency and lower temperature. By doping Mg, it decreases the dielectric loss and increasing the Mg dopingit increases the dielectric constant.

#Mg2+ Doping #Dielectric #Ceramic #Solid state reaction method.

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