Phase composition and particle size distribution in Mg(Ti1-x Sn x )O3 powders

Ermawati, Frida Ulfah; Ahfa, M. H.; Supardiyono,

doi:10.1088/1742-6596/1171/1/012038

Cited by 4 publications

(3 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The liquid solutions were then used to produce crystalline powder by mixing the solutions together homogeneously and heating it. This particular synthesis method has successfully produced MgTiO3-and the other ilmenite type-based ceramic dielectric materials [17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. This paper reports the work to synthesize Ilmenite FeTiO3 nanopowder using the liquid-mixing method.…”

Section: Introductionmentioning

confidence: 99%

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO₃Nanopowder Prepared from Liquid-Mixing Method

Ermawati

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Ilmenite FeTiO3 is a wide-band gap antiferromagnetic semiconductor material and has very potential for applications in spintronic devices. Miniaturization of microelectronics and communication systems has become a necessity. Thus a material that can achieve high antiferromagnetic semiconductor properties in a small volume is therefore favourite. For that reason, particles of the materials must also be in the nanoscale. This paper reports the synthesis of nano-sized Ilmenite FeTiO3 powder using the liquid-mixing method. Using this method, FeTiO3 crystalline phase was initially formed at a temperature as low as 340 °C. The phase formation was analyzed from room temperature to 600 °C based on TGA/DTA, FTIR and XRD data. Rietveld's analysis stated that 84 % molar FeTiO3 phase was formed at 340 °C, and the rest was TiO2 rutile. By using the Scherrer method, the average crystallite size was calculated to be 38-43 nm, while the TEM data provides grain sizes of 20-40 nm.

show abstract

Section: Introductionmentioning

confidence: 99%

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO₃Nanopowder Prepared from Liquid-Mixing Method

Ermawati

2022

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

show abstract

“…Teknologi komunikasi pada gelombang mikro berbasis magnesium titanat (MgTiO3) banyak diaplikasikan pada sistem antena, radar, atau penentuan posisi global (Santhosh Kumar et al, 2014;Zhang et al, 2018;Ermawati, Ahfa dan Supardiyono, 2019;Liu et al, 2021). MgTiO3 memiliki nama mineral geikielite dengan struktur ilmenite, space group R-3, parameter kisi a = b ≠ c, dan memiliki file difraksi serbuk Powder Diffraction File (PDF) dengan No.…”

unclassified

“…Pada penelitian ini, Peneliti berinisiatif untuk melakukan sintesis serbuk MTS001 dengan doping ion Sn 4+ untuk ion Ti 4+ menggunakan suhu kalsinasi sama seperti yang dilaporkan oleh (Ermawati, Ahfa dan Supardiyono, 2019), namun dengan variasi waktu tahan 2, 4, dan 6 jam. Tujuannya adalah: 1) untuk memperoleh fasa MgTiO3 yang dominan (antara 78-87 %), 2) juga untuk mengkaji lebih lanjut tentang bagaimana pengaruh variasi waktu tahan tersebut terhadap komposisi fasa MgTiO3 (berupa %berat, %molar, densitas atom, parameter kisi, dan volume sel satuan.…”

unclassified

Pengaruh Waktu Tahan Kalsinasi terhadap Komposisi Fasa dan Ukuran Kristalit Serbuk Mg(Ti0,99Sn0,01)O3 Hasil Sintesis dengan Metode Pencampuran Larutan

Hermadianti,

Ermawati

2023

Inov. Fis. Indones.

View full text Add to dashboard Cite

Abstrak Pada penelitian ini, serbuk Mg(Ti0,99Sn0,01)O3 (disingkat MTS001) disintesis menggunakan metode pencampuran larutan yang dikalsinasi pada suhu 800 °C. Sintesis serbuk MTS001 dilakukan dengan bahan awal berupa serbuk logam Mg, Ti, dan Sn (Merck) dan HCl 12 M (37 %). Serbuk MTS001 hasil sintesis kemudian dikalsinasi selama 2, 4, dan 6 jam untuk menganalisis pengaruh waktu tahan kalsinasi terhadap %molar, %berat, densitas atom, parameter kisi, volume sel satuan, dan ukuran kristalit. Data struktural menunjukkan bahwa fasa utama adalah MgTiO3 (86,61-92,10 %berat) dan fasa impurity TiO2, diikuti dengan ekstra fasa MgO khususnya pada waktu tahan 4 jam. Data volume sel satuan dan parameter kisi mengalami kenaikan dari waktu tahan 2 jam menuju 4 jam, kemudian menurun pada 6 jam. Kenaikan kedua data tersebut dipengaruhi oleh terbentuknya fasa impurities yang lebih banyak dibandingkan waktu tahan yang lain, yaitu fasa TiO2 dan MgO, sehingga mempengaruhi transformasi pembentukan fasa MgTiO3. Perubahan data tersebut membuktikan bahwa telah terbentuk larutan padat substitusi MTS001. Seiring dengan naiknya waktu tahan kalsinasi 2-6 jam, nilai densitas atom dan ukuran kristalit mengalami kenaikan, sehingga menyebabkan terjadinya pelebaran puncak. Kata Kunci: serbuk Mg(Ti0,99Sn0,01)O3, komposisi fasa, ukuran kristalit, densitas atom, waktu tahan kalsinasi Abstract In this study, Mg(Ti0.99Sn0.01)O3 powders (abbreviated as MTS001) were synthesized using a liquid mixing method calcined at 800 °C. The synthesis of MTS001 powders were carried out with raw materials in the form of Mg, Ti, and Sn metal powders (Merck) and 12 M HCl (37 %). The synthesized MTS001 powders were then calcined for 2, 4, and 6 hours to analyze the effect of calcination holding time on %molar, %weight, atomic density, lattice parameters, unit cell volume, and crystallite size. The structural data showed that the main phase was MgTiO3 (86.61-92.10 wt%) and TiO2 impurity phase, followed by extra MgO phase especially at 4 h holding time. Unit cell volume data and lattice parameters increased from 2 hours to 4 hours, then decreased at 6 hours. The increase of both data is influenced by the formation of of more impurities compared to other holding times, namely the TiO2 and MgO phases, thus affecting the transformation of the formation of the MgTiO3. The change in data proves that the MTS001 substitution solid solution has been formed. Along with the increase in calcination holding time 2-6 hours, the value of atomic density and crystallite size has increased, thus causing peak broadening. Keywords: Mg(Ti0.99Sn0.01)O3 powders, phase composition, crystallite size, atomic density, holding time calcination

show abstract

The Response of (Mg_0.6Zn_0.4)TiO₃ Ceramic System as A Dielectric Resonator Oscillator at C-Band

Ermawati

2021

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Magnesium titanate (MgTiO3) with the ilmenite structure has been recognized as a potential dielectric ceramic material for modern cellular technology, satellite communications in the microwave frequency region, radar systems, filters, resonators and antennas in global positioning systems. This paper demonstrates the response of magnesium zinc titanate (Mg0.6Zn0.4)TiO3 ceramic system when it was mounted as a dielectric resonator element in a dielectric resonator oscillator (DRO) circuit when the circuit was tuned in a transverse electric (TE)01δ resonant mode operating at the frequency range of 3 – 12 GHz. The discussion is related to the structure, microstructure and dielectric characteristics.

show abstract

Phase composition and particle size distribution in Mg(Ti_1-xSn _x )O₃ powders

Cited by 4 publications

References 13 publications

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO₃Nanopowder Prepared from Liquid-Mixing Method

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO₃Nanopowder Prepared from Liquid-Mixing Method

Pengaruh Waktu Tahan Kalsinasi terhadap Komposisi Fasa dan Ukuran Kristalit Serbuk Mg(Ti0,99Sn0,01)O3 Hasil Sintesis dengan Metode Pencampuran Larutan

The Response of (Mg_0.6Zn_0.4)TiO₃ Ceramic System as A Dielectric Resonator Oscillator at C-Band

Contact Info

Product

Resources

About

Phase composition and particle size distribution in Mg(Ti1-x Sn x )O3 powders

Cited by 4 publications

References 13 publications

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO3Nanopowder Prepared from Liquid-Mixing Method

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO3Nanopowder Prepared from Liquid-Mixing Method

Pengaruh Waktu Tahan Kalsinasi terhadap Komposisi Fasa dan Ukuran Kristalit Serbuk Mg(Ti0,99Sn0,01)O3 Hasil Sintesis dengan Metode Pencampuran Larutan

The Response of (Mg0.6Zn0.4)TiO3 Ceramic System as A Dielectric Resonator Oscillator at C-Band

Contact Info

Product

Resources

About

Phase composition and particle size distribution in Mg(Ti_1-xSn _x )O₃ powders

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO₃Nanopowder Prepared from Liquid-Mixing Method

Phase Formation, Structural, and Microstructural Characterizations of Ilmenite FeTiO₃Nanopowder Prepared from Liquid-Mixing Method

The Response of (Mg_0.6Zn_0.4)TiO₃ Ceramic System as A Dielectric Resonator Oscillator at C-Band