Article
Materials Science, Ceramics
Muhammad Zarrar Khan, Iftikhar Hussain Gul, Farooq A. Tahir
Summary: Ba-Sr hexaferrite nanoparticles were synthesized using Sol-Gel auto combustion, and their composites with MWCNTs and conductive polymers were synthesized using carrier fluid ultra-sonication dispersion and in-situ polymerization. Structural investigations were conducted to analyze the samples. The results showed good energy dissipation behavior and decreased magnetism in the composites due to weakened exchange coupling or domain wall pinning. The microwave absorption of the samples was evaluated, and the maximum total shielding effectiveness was observed at resonant frequencies relevant to military radars.
CERAMICS INTERNATIONAL
(2023)
Article
Environmental Sciences
Sandhya Mishra, Sushma Kumari, Prashant Kumar, Sujoy Kumar Samanta
Summary: Microwave catalysis is highly lucrative due to its ability for prompt mineralization and superior efficiency. Strontium hexaferrite 2D sheets have been explored as effective catalysts for the degradation of organic dyes and antibiotics. The research suggests the emergence of microwave catalysis as a new technology.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Materials Science, Multidisciplinary
Sehrish Habib, Amani Hassanein, Ramazan Kahraman, Elsadig Mahdi Ahmed, R. A. Shakoor
Summary: This study investigates the self-healing behavior of epoxy-based double-layer nanocomposite coatings designed to mitigate corrosion, by loading zirconia nanoparticles, IM, and PEI to improve corrosion resistance performance. The release of loaded IM and PEI in response to external stimuli contributes to the enhanced corrosion resistance, making these coatings potentially valuable for oil & gas and marine applications.
MATERIALS & DESIGN
(2021)
Article
Materials Science, Ceramics
Sungjoon Choi, Jae-Hyoung You, Chris Yeajoon Bon, Seung-young Park, Sang-Im Yoo
Summary: Enhanced microwave absorption properties were achieved in SrFe2-xZnxF hexaferrite filler-epoxy resin matrix composites. Partially Zn-substituted composites showed the best performance in the 3.4-3.8 GHz and 5.9-7.1 GHz ranges.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Ruoshui Liu, Lichen Wang, Xiang Yu, Zhiyi Xu, Huayang Gong, Tongyun Zhao, Fengxia Hu, Baogen Shen
Summary: The study demonstrates the enhancement of magnetocrystalline anisotropy (MA) in La-Co co-substituted strontium hexaferrite (La-Co SrM) due to the joint effect of Fe2+ and Co2+ ions. Co-substituted strontium hexaferrite SrFe12-xCoxO19 (Co-SrM) single crystals were grown to investigate the anisotropy of Co2+ single ions. The solubility of Co in this preparation condition is limited to 0.31, and for 0.03 < x <= 0.11, a 19% enhancement in uniaxial magnetic anisotropy field HA is observed, with only a 7% loss in saturation magnetization MS at 5 K. The enhanced HA of Co-SrM is even higher than that of La-Co SrM, making it suitable for use as permanent magnets in this concentration range. However, for x = 0.31, planar anisotropy is observed at 5 K. The potential nonlinear magnetic structure of Co-SrM remains to be discovered for magnetoelectric effects. This work serves as a significant complement to the magnetocrystalline anisotropy study of La-Co SrM.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Neetu Kumar, Bijoy Kumar Kuanr
Summary: Microwave absorbers with multiple frequency-band response are crucial for military stealth technology. Ferrite-based materials combined with carbonaceous materials offer enhanced reflection loss. The study demonstrates that a double-layer absorber with an impedance matching layer followed by an absorbing layer achieves significantly higher reflection loss than a single-layer absorber. The Fe3O4@rGO composite shows the best microwave absorption performance in all three frequency bands, while a double-layer structure with Fe3O4@GO as an impedance matching layer and Fe3O4@rGO as an absorbing layer exhibits the best absorption. Such a double-layer absorber is ideal for coating the entire body of aircraft or missiles to evade satellite detection.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
M. A. Darwish, A. T. Morchenko, H. F. Abosheiasha, V. G. Kostishyn, V. A. Turchenko, M. A. Almessiere, Y. Slimani, A. Baykal, A. Trukhanov
Summary: This paper introduces a novel RAM using exfoliated graphite and hexaferrite, studying its application in composite materials. Characterization and analysis of prepared samples were conducted using XRD, Raman spectroscopy, SEM, and VSM, demonstrating the efficient electromagnetic radiation absorption capabilities of this RAM.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Xiaoli Wang, Ali Hassan, Mohamad Reda A. Refaai, Mahyuddin K. M. Nasution, Majid Niaz Akhtar
Summary: In the modern world, electromagnetic interference is a serious issue. To effectively prepare materials with excellent electromagnetic wave dissipation capabilities, researchers synthesized pompon-flower-like CoGd0.5Fe1.5O4 and sphere-like BiFeO3. The findings demonstrate that using BiFe as the first layer and CoGd as the second layer in a bi-layer absorber can improve impedance matching and achieve high absorption with a broad effective absorption bandwidth.
SURFACES AND INTERFACES
(2023)
Article
Materials Science, Ceramics
Ngo Tran, Ruey-Bin Yang, Woo Hyun Jeong, Do Hung Manh, The-Long Phan, Bo Wha Lee
Summary: This study investigated the application of La-substituted barium hexaferrite in microwave absorption performance. The experimental results showed that doping with different concentrations of La can tune the magnetic properties and microwave absorption features of the material.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Multidisciplinary Sciences
Maksym Popov, Igor Zavislyak, Hongwei Qu, A. M. Balbashov, M. R. Page, G. Srinivasan
Summary: This report focuses on the observation and analysis of the nonlinear magnetoelectric effects (NLME) in single crystals and thin films of barium hexaferrite. The study reveals significantly higher NLME coefficients for in-plane currents compared to currents flow along the hexagonal axis. The multidomain resonance configuration is preferable for low-power device applications.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
D. D. L. Chung
Summary: Carbon materials in the graphite allotrope family, such as exfoliated graphite (EG), exhibit high electromagnetic interference (EMI) shielding performance. The cellular structure and preferred orientation of the carbon layers in EG contribute to its resilience perpendicular to the plane of preferred orientation, which is beneficial for EMI gasketing.
Article
Materials Science, Ceramics
Xiaohu Ren, Xilou Pu, Hongfeng Yin, Yun Tang, Hudie Yuan, Huiqing Fan
Summary: By coating conductive polymer PANI on the surface of hexaferrite, the electromagnetic loss can be greatly enhanced, leading to improved microwave absorption capacity. The PANI@hexaferrite composite exhibited excellent absorption performance at various thicknesses, showing potential for extensive applications as microwave absorbers.
CERAMICS INTERNATIONAL
(2021)
Article
Nanoscience & Nanotechnology
Xianfei Zhang, Linling Xu, Jintang Zhou, Wenjian Zheng, Han Jiang, Karma Zuraiqi, Gang Kevin Li, Jing Liu, Ali Zavabeti
Summary: This study explores the synthesis of highly electrostatically polarized two-dimensional aluminum hydroxides as adsorption sites for various divalent cations. By changing synthesis conditions, different orientations of 2D Al/NiCo-LDO nanoplatelets can be achieved, resulting in excellent electromagnetic wave absorption performance. The results demonstrate the tunable and excellent electromagnetic wave absorption capabilities of the developed 2D AI/NiCo-LDOs for potential applications in electromagnetic protection and absorption.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Zhou Liu, Yuankang Wang, Cong Xian, Kewei Li, Fanggui Wang, Pengyu Zhang, Wenyun Yang, Shunquan Liu, Changsheng Wang, Honglin Du, Zhaochu Luo, Jiaming Tang, Xiangdong Kong, Li Han, Yanglong Hou, Jinbo Yang
Summary: We have designed a universal absorber structure that significantly improves absorption performance by inserting a lossless layer between the metal backing and the absorption layer. By applying this structure to different materials, we prove its effectiveness, achieving a thin absorber with a high absorption bandwidth and a strong absorption peak. The phase-tuning layer can also be composed of other lossless mediums, making the preparation practical.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Ceramics
P. T. Tho, C. T. A. Xuan, N. Tran, N. Q. Tuan, W. H. Jeong, S. W. Kim, T. Q. Dat, V. D. Nguyen, T. N. Bach, T. D. Thanh, D. T. Khan, B. W. Lee
Summary: Cu, Co, and Ti elements were co-doped to SrFe12O19, and it was found that the microwave absorption performance of SrFe12O19 can be significantly improved through co-doping. All samples showed good microwave absorption performance in terms of reflection loss and effective absorption bandwidth, with one sample exhibiting the ability to cover multiple microwave frequency bands.
CERAMICS INTERNATIONAL
(2022)
Article
Energy & Fuels
S. Y. Kpalo, M. F. Zainuddin, H. B. A. Halim, A. F. Ahmad, Z. Abbas
Summary: This study evaluated the physical and thermal characteristics of briquettes made from a mixture of paper pulp and Mesua ferrea leaves. Different proportions of paper pulp and leaves were used to produce briquettes with varying moisture content, density, shatter index, and calorific value. The 50-50% mixture yielded the best results in terms of moisture content, calorific value, and shatter index.
Article
Chemistry, Physical
H. H. Harun, M. K. A. Karim, Z. Abbas, A. Sabarudin, S. C. Muniandy, H. R. A. Razak, K. H. Ng
Summary: This study evaluated the effects of using iterative reconstruction algorithm and different tube potentials on Computed Tomography Pulmonary Angiography (CTPA) examination, and established the relationship between radiation exposure and image quality. The research found that as tube voltage and patient size increased, radiation dose also increased, but SNR, CNR, and FOM values remained comparable with different parameters.
RADIATION PHYSICS AND CHEMISTRY
(2021)
Article
Engineering, Electrical & Electronic
Rahimah Mustapa Zahari, Abdul Halim Shaari, Zulkifly Abbas, Ismayadi Ismail, Hussein Baqiah, Lim Kean Pah, Chen Soo Kien, Mohd Mustafa Awang Kechik
Summary: Synthesized BiFe1-xYxO3 ceramics with different Y concentrations showed structural phase transformations and enhanced magnetic properties. The highest microwave absorption properties were observed at x = 0.0.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2021)
Article
Polymer Science
Ibrahim Abubakar Alhaji, Zulkifly Abbas, Mohd Hafiz Mohd Zaid, Ahmad Mamoun Khamis
Summary: This study focused on the fabrication and characteristics of low dielectric loss and low-cost recycled borosilicate glass-reinforced polytetrafluoroethylene composites for microwave substrate applications. The impact of filler sizes on thermal, mechanical, and dielectric properties was explored, showing comparable characteristics with commercial high-frequency laminates.
Article
Polymer Science
Ahmad Mamoun Khamis, Zulkifly Abbas, Raba'ah Syahidah Azis, Ebenezer Ekow Mensah, Ibrahim Abubakar Alhaji
Summary: This study aimed to enhance the dielectric, magnetic, and thermal properties of PTFE composites by incorporating recycled Fe2O3 nanofiller. The results showed that the nanocomposites exhibited reduced thermal expansion coefficients and improved permittivity and permeability properties with increasing filler loading. The use of rFe(2)O(3) nanoparticles as fillers in the PTFE matrix demonstrated promising potential for advanced composite materials.
Article
Chemistry, Physical
Madiha Fathi Elmahaishi, Raba'ah Syahidah Azis, Ismayadi Ismail, Muhammad Syazwan Mustaffa, Zulkifly Abbas, Khamirul Amin Matori, Farah Diana Muhammad, Nor Kamilah Saat, Rodziah Nazlan, Idza Riati Ibrahim, Nor Hapishah Abdullah, Nurhidayaty Mokhtar
Summary: This study presents a low-cost approach by reutilizing mill scale waste to fabricate high purity crystalline Fe3O4 with the best potential for designing magnetic nano-sized based microwave absorbers. The Fe3O4 exhibited excellent microwave absorption properties due to its synergistic characteristics of dielectric and magnetic loss, showing higher absorption properties and broader bandwidth. This research provides insights into the utilization of mill scale waste as a sustainable resource for advanced materials.
Article
Nanoscience & Nanotechnology
Ebenezer Ekow Mensah, Zulkifly Abbas, Raba'ah Syahidah Azis, Ahmad Mamoun Khamis
Summary: This study investigates the effect of microstructural variations on the relative complex permittivity and microwave absorption properties of recycled alpha-Fe2O3 nanoparticles obtained through high-energy ball milling. The results show that interfacial lattice defects and imperfections caused by milling enhance the interfacial polarization process, leading to increased relative complex permittivity and microwave absorption properties of the nanoparticles.
Retraction
Multidisciplinary Sciences
I. E. Zaheer, S. Ali, M. H. Saleem, H. S. Yousaf, A. Malik, Z. Abbas
Article
Materials Science, Multidisciplinary
Ibrahim Abubakar Alhaji, Zulkifly Abbas, Mohd Hafiz Mohd Zaid, Norhazlin Zainuddin, Ahmad Mamoun Khamis, Ismail Ibrahim Lakin
Summary: Recycled borosilicate glass filled in polytetrafluoroethylene matrix to fabricate composites for printed circuit board substrate application. The composites exhibited excellent microwave properties and good thermal performance, with improvements in structural, dielectric, and thermal properties with increasing filler content. Experimental values of relative permittivity were in agreement with calculated values, and the logarithmic general mixing model provided good estimates for the loss tangent of the composites.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
I. A. Alhaji, Z. Abbas, N. Zainuddin, N. A. Ibrahim, A. M. Khamis, I. I. Lakin
Summary: Recycled soda lime silica glass-filled polytetrafluoroethylene composites were prepared for substrate application at microwave frequencies. The study found that the filler content had a significant impact on the composites' dielectric, mechanical, and thermal properties.
MATERIALWISSENSCHAFT UND WERKSTOFFTECHNIK
(2022)
Article
Engineering, Chemical
Ahmad Mamoun Khamis, Zulkifly Abbas, Raba'ah Syahidah Azis, Ebenezer Ekow Mensah, Ibrahim Abubakar Alhaji
Summary: This study focuses on the development of microwave shielding nanocomposites based on recycled hematite nanoparticles, oil palm empty fruit bunch (OPEFB), and polytetrafluoroethylene (PTFE). The microwave shielding properties of the nanocomposites can be controlled by adjusting the percentage of Fe2O3 nanofiller. The results showed that the nanocomposites exhibited good shielding effectiveness at frequencies of 10 and 12.4 GHz.
POLYMER ENGINEERING AND SCIENCE
(2022)
Article
Materials Science, Ceramics
A. J. A. Al-Nidawi, K. A. Matori, M. H. M. Zaid, J. Y. C. Liew, M. A. A. Khushaini, A. R. M. Zain, W. R. M. Mutage, M. A. M. Abuallan, A. M. E. Efa
Summary: This paper reports on the effect of boron addition on the enhancement of elastic properties and Raman shifting in the Surface Plasmon Resonance results for zinc borosilicate glass substrates used for optical biosensor applications. The glass composition was found to significantly influence the physical and elastic moduli of the boron-doped zinc silicate series. The addition of boron led to changes in the glass density and moduli.
JOURNAL OF NON-CRYSTALLINE SOLIDS
(2023)
Correction
Multidisciplinary Sciences
Hassan Soleimani, Jemilat Yetunde Yusuf, Lee Kean Chuan, Hojjatollah Soleimani, Mustapha Lutfi bin Sabar, Andreas Oechsner, Zulkifly Abbas, Asmau Iyabo Balogun, Gregory Kozlowski
Article
Multidisciplinary Sciences
Hassan Soleimani, Jemilat Yetunde Yusuf, Lee Kean Chuan, Hojjatollah Soleimani, Mustapha Lutfi bin Sabar, Andreas Ochsner, Zulkifly Abbas, Asmau Iyabo Balogun, Gregory Kozlowski
Summary: This study investigates the potential of utilizing cobalt ferrite (CF) nanoparticles grown on eggshell membranes (ESM) to address the issue of electromagnetic interference (EMI). CF nanoparticles were synthesized on ESM through a simple carbonization process, and their microwave absorption performance (MAP) at X-band frequency was evaluated. The composite of CF and ESM, called CESM@CF, exhibited a strong RL peak value of -39.03 mm at an optimal thickness of 1.5 mm. The excellent impedance matching and EM wave attenuation of CESM@CF can be attributed to the multiple interfaces, conduction loss, interfacial polarization, and dual influence from both CF and ESM. CESM@CF composite is projected to be an outstanding biomass-based nano-composite for EM wave absorption applications.
