Microwave-Hydrothermal Synthesis of Y3Fe5O12 Nanoparticles: Sintering Temperature Effect on Structural, Magnetic and Dielectric Properties

Ramesh, T.; Rao, Guo‐Wu; Suneetha, T.; Shinde, R.S.; Rajendar, V.; Murthy, S. R.; Kumar, Shalendra

doi:10.1007/s10948-017-4425-6

Cited by 19 publications

(8 citation statements)

References 27 publications

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“…[40] From the obtained micrographs it may be trusted that mass transport mechanism initiated with atomic surface diffusion at relatively low temperature and carry on by occurring grain boundaries diffusion which results in the formation of necking, growth in contact, elimination of pores, and growth of particle size. [47] The average grain size of the samples increases with increase in sintering temperature which was also reported by Ramesh et al [56] and Mousavi Ghahfarokhi et al, [58] and is calculated using line intercept method given in Equation ( 6) [48] and is given in Table 2 grain size = sample sintered at temperature 900 °C is symmetric (Gaussian) at 75 nm with grain size ranges from 25 to 450 nm, peaking at 80 nm. For sample sintered at 1000 °C, the distribution of grain size is symmetric (Gaussian) and peak ranges 10-125 nm, the maximum number of grains lies between 32 and 72 nm.…”

Section: Fesemsupporting

confidence: 59%

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Sharma

Godara

Maji

et al. 2021

Crystal Research and Technology

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This research work explores the effect of sintering temperature on morphology and magnetic properties of aluminum substituted gadolinium iron garnet Gd 3 Al x Fe 5−x O 12 (x = 2). Sol-gel autocombustion method is adopted to prepare Gd 3 Al x Fe 5−x O 12 , and further sintered at 900, 1000, and 1100 °C. X-ray diffraction (XRD) confirms the formation of garnet phase structure. Fourier transformation infrared ray further stands with result of XRD that reveals the presence of garnet phase. Field emission scanning microscope analysis shows the formation of average grain size 4, 6, and 13 nm for 900, 1000, and 1100 °C, respectively. Vibrating sample magnetometer results show that the coercivity decreases with increases in temperature, which indicates that this material can be used in switching devices. The calculated value of microwave operating frequency reveals that these materials can be used in ultrahigh-frequency region.

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Section: Fesemsupporting

confidence: 59%

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Sharma

Godara

Maji

et al. 2021

Crystal Research and Technology

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“…Ramesh et al. [ 22 ] reported that the microwave sintering method results in the fine grains with high density as compared to the conventional sintering method. Thangjam et al.…”

Section: Resultsmentioning

confidence: 99%

“…From the measured grain size values, it is observed that the grain size of the microwave sintered sample is almost double as compared to the conventional sintered sample. Ramesh et al [22] reported that the microwave sintering method results in the fine grains with high density as compared to the conventional sintering method. Thangjam et al [18] studied the impact of sintering procedure on the density and properties of the ferrites and observed that the microwave sintering results in the high density with higher grain size as compared to the conventional sintering process.…”

Section: Resultsmentioning

confidence: 99%

Magnetodielectric Comparison Study Between Microwave and Conventional Sintered NiCuZn Ferrites

Ramesh¹,

Sravanthi

Ashok³

et al. 2023

Macromolecular Symposia

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Ni 0.53 Cu 0.12 Zn 0.35 Fe 2 O 4 ferrite powder is synthesized using the microwave-assisted hydrothermal (M-H) technique. The synthesized powder is characterized using X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR). The morphology of the powder particles is examined using field effective scanning electron microscopy (FESEM). The powder is then sintered using microwave and conventional methods at 910°C/1.5 h and 910°C/4 h, respectively. The grain size, bulk density, d.c. resistivity, and saturation magnetization of both the sintered samples are measured and compared. The dielectric properties of both the sintered samples are measured at frequencies ranging from 1 MHz to 1.8 GHz. The research indicates that the sintering process has an impact on the magnetodielectric performance of ferrites. The change in properties resulting by the sintering method is briefly reviewed.

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“…The investigated sample's curie temperature is 277°C, which is slightly higher than the reported value of pure YIG sample. [ 26 ]…”

Section: Resultsmentioning

confidence: 99%

Structural, Magnetic, and Dielectric Properties of Y₂GdFe₅O₁₂ Synthesized by Hydrothermal Method

Ramesh¹,

Reddy

Sravanthi

et al. 2023

Macromolecular Symposia

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In this study, the structural and magnetodielectric properties of gadolinium (Gd 3+ ) substituted yttrium iron garnet (Y 2 GdFe 5 O 12 ) are investigated. The hydrothermal synthesis method is used to prepare the powders. The prepared powders are sintered at three different temperatures. X-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM) are used to characterize the structural and morphological properties of the sintered samples. The dielectric properties are measured over a frequency range of 100 Hz-1 MHz. A vibration sample magnetometer (VSM) is used to determine the magnetic parameters of the samples and it is observed that the magnetic properties of the samples depend on the sintering temperature. The thermal change in magnetization parameter and the transition temperature of the samples are measured using the pulse magnetometer by applying 5kOe magnetic field. The collected results are analyzed and discussed using various theories.

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Microwave-Hydrothermal Synthesis of Y3Fe5O12 Nanoparticles: Sintering Temperature Effect on Structural, Magnetic and Dielectric Properties

Cited by 19 publications

References 27 publications

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Magnetodielectric Comparison Study Between Microwave and Conventional Sintered NiCuZn Ferrites

Structural, Magnetic, and Dielectric Properties of Y₂GdFe₅O₁₂ Synthesized by Hydrothermal Method

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Microwave-Hydrothermal Synthesis of Y3Fe5O12 Nanoparticles: Sintering Temperature Effect on Structural, Magnetic and Dielectric Properties

Cited by 19 publications

References 27 publications

Influence of Temperature on Structural and Magnetic Properties of Gd3AlxFe5−xO12 (x = 2)

Influence of Temperature on Structural and Magnetic Properties of Gd3AlxFe5−xO12 (x = 2)

Magnetodielectric Comparison Study Between Microwave and Conventional Sintered NiCuZn Ferrites

Structural, Magnetic, and Dielectric Properties of Y2GdFe5O12 Synthesized by Hydrothermal Method

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Product

Resources

About

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Influence of Temperature on Structural and Magnetic Properties of Gd₃Al_xFe₅₋_xO₁₂ (x = 2)

Structural, Magnetic, and Dielectric Properties of Y₂GdFe₅O₁₂ Synthesized by Hydrothermal Method