Thermo-magnetic properties of Fe2O3-doped lithium zinc silicate glass-ceramics for magnetic applications

Shakdofa, Mohamad M.E.; Mahdy, Ebrahim A.; Abo-Mosallam, H.A.

doi:10.1016/j.ceramint.2021.05.269

Cited by 7 publications

(4 citation statements)

References 34 publications

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“…In the current study, we synthesized a group of sol-gel-derived MBGs based on 45S5 Bioglass formulation in which various concentrations (0, 1, 2.5, 5, and 7.5 mol%) of Fe 2 O 3 were incorporated in order to obtain anticancer Fe 2 O 3 -containing glasses. As reported elsewhere [32] , the P-O-Fe and Si-O-Fe linkages could be formed in the glass structure by adding Fe 2 O 3 as a modifier oxide. Fe 2 O 3 (Fe/O = 1.5) can trigger the reduction reactions ( R1-R8 ) reported below.…”

Section: Discussionsupporting

confidence: 64%

“…1 ) indicated that the incorporation of Fe 2 O 3 to the MBGs network can reduce the glass transition temperature (from 713 to 659 °C), which can be associated with an increasing number of non-bridging oxygens (NBOs) in the glass network and subsequent decrease of crystallization energy [33] . The different peak positions seen in DTA graphs could also be related to the anti-polarization effect of Fe 3+ ions and the decrease of glass network coherency [32] . The particle size analysis ( Table 2 ) indicates that the addition of Fe 2 O 3 significantly hinders the particle growth (size decrease from 110 to 11 nm), which is in line with other reported experiments on different glass compositions [28] .…”

Section: Discussionmentioning

confidence: 99%

See 1 more Smart Citation

Iron (Fe)-doped mesoporous 45S5 bioactive glasses: Implications for cancer therapy

Kermani

Vojdani-Saghir

Mollazadeh

et al. 2022

Translational Oncology

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Section: Discussionsupporting

confidence: 64%

Section: Discussionmentioning

confidence: 99%

Iron (Fe)-doped mesoporous 45S5 bioactive glasses: Implications for cancer therapy

Kermani

Vojdani-Saghir

Mollazadeh

et al. 2022

Translational Oncology

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“…Zn substitution in cobalt ferrite alters its spinel structure to a great extent depending on the precursor concentration . Zinc-doped lithium ferrite has gained much attention due to its high value of saturation magnetization . It was observed that cobalt substitution has a higher magnetic effect on Li–Zn ferrite.…”

Section: Introductionmentioning

confidence: 99%

“… 17 Zinc-doped lithium ferrite has gained much attention due to its high value of saturation magnetization. 18 It was observed that cobalt substitution has a higher magnetic effect on Li–Zn ferrite. ZnFe 2 O 4 is also a promising material because of its remarkable magnetic properties.…”

Section: Introductionmentioning

confidence: 99%

Tuning the Magnetic Behavior of Zinc Ferrite via Cobalt Substitution: A Structural Analysis

Hussain,

Mehmood,

Ali

et al. 2024

ACS Omega

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Cobalt-doped zinc ferrite is a contemporary material with significant structural and magnetic characteristics. Our study explores the magnetic properties of cobalt-substituted zinc ferrite (Zn x Co 1−x Fe 2 O 4 ), synthesized via a simple sol−gel method. By varying the cobalt ratio from 0 to 0.5, we found that zinc substitution impacts both the magnetization and lattice parameters. FTIR analysis suggested the presence of functional groups, particularly depicting an M−O stretching band, within octahedral and tetrahedral clusters. X-ray diffraction analysis confirmed the phase purity and cubic structure. The synthesized materials exhibited an average particle size of 24−75 nm. Scanning electron microscopy revealed the morphological properties, confirming the formation of truncated octahedral particles. In order to determine the stability, mass loss (%), and thermal behavior, a thermal analysis (thermogravimetric analysis (TGA)/differential thermal analysis (DTA)) was performed. The magnetic properties of the synthesized ferrites were confirmed via a vibrating sample magnetometer (VSM). Finally, the highest saturated magnetization and lowest coercivity values were observed with higher concentrations of the cobalt dopant substituting zinc. The synthesized nanomaterials have good stability as compared to other such materials and can be used for magnetization in the near future.

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The impact of NiO on crystallization and thermo-magnetic properties of Li2O–NiO–P2O5 glasses as new magnetic materials

Abo-Mosallam

Farag

2023

J Mater Sci: Mater Electron

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The main goal of this study is to comprehend the effect of the composition change on crystallization characteristics, thermal, physical, and magnetic properties of glasses with the general formula (35 − x) Li2O − (5 + x) NiO − 60 P2O5 (x = 5, 10, and 15 mol%). The XRD results indicated that Li4P4O12, Li6P6O18, Ni2P2O7, Ni2P4O12, and Li3P crystalline phases were formed in the glass ceramics. The NiO/Li2O replacement led to an increase in the coherence of the glass structure. Density values for the glass and glass–ceramic samples ranged from 2.38 to 2.49 g/cm3 and from 2.41 to 2.53 g/cm3, respectively. Coefficients of thermal expansion CTE of the glasses were varied from 157 × 10−7 to 96 × 10−7 °C over the temperature range of 25–250 °C. However, CTE of the glass–ceramic was ranged from 183 × 10−7 to 129 × 10−7 °C over the temperature range of 25–500 °C. VSM analysis for the glasses revealed that the NiO/Li2O replacement led to a decrease in the magnetic parameters of the materials. Contrariwise from VSM hysteresis loops of glass–ceramic, it was found that the magnetic parameters increased with the addition NiO instead of Li2O. The results indicated a great potential of the prepared glasses and glass ceramics as promising soft ferromagnetic materials that can be used in different magnetic applications.

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Thermo-magnetic properties of Fe2O3-doped lithium zinc silicate glass-ceramics for magnetic applications

Cited by 7 publications

References 34 publications

Iron (Fe)-doped mesoporous 45S5 bioactive glasses: Implications for cancer therapy

Iron (Fe)-doped mesoporous 45S5 bioactive glasses: Implications for cancer therapy

Tuning the Magnetic Behavior of Zinc Ferrite via Cobalt Substitution: A Structural Analysis

The impact of NiO on crystallization and thermo-magnetic properties of Li2O–NiO–P2O5 glasses as new magnetic materials

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