Article
Materials Science, Ceramics
Xi Wang, Shicheng Zhou, Kaiyang Liu, Shan Deng, Yaqi Xiao, Xiuli Chen, Huanfu Zhou
Summary: Extensive research has been conducted on microwave dielectric materials for their application in 5G and 6G communication technologies. This study broadened the sintering temperature range of MT-C ceramics using a composite of CeO2 and Mg2TiO4 ceramics, and stabilized their microwave dielectric performance. The prepared MT-C ceramics exhibited low loss and uniform density, making them suitable for industrial applications in the field of communication.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xiaoqing Chen, Hao Li, Pengcheng Zhang, Gaosheng Li
Summary: Co2P2O7 ceramics were prepared using traditional solid-state sintering technique, with research conducted on their phase composition, grain size distribution, and densification. The influence of pores on permittivity, dielectric loss dependency on porosity, and the low values of ε(r) explained by covalent P-O bonds were explored, along with the relationship between polar phonon modes and dielectric properties using Raman spectroscopy. Optimum dielectric properties were achieved at 1160 degrees C for 4 hours.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Hicham Mahfoz Kotb, Hassan A. Khater, Osama Saber, Mohamad M. Ahmad
Summary: NSCTO ceramics were prepared by reactive sintering solid-state reaction, and the influence of sintering temperature on structural and dielectric properties was thoroughly studied. The ceramic sample sintered at 1025 degrees C showed the best compromise between colossal relative permittivity and low dielectric loss values.
Article
Biochemistry & Molecular Biology
Porntip Siriya, Pairot Moontragoon, Pornjuk Srepusharawoot, Prasit Thongbai
Summary: The effects of sintering temperature and doping level concentration on the microstructures, dielectric response, and electrical properties of W6+-doped TiO2 were investigated. The study found that increasing the doping level concentration led to increased grain size and improved low-temperature dielectric response.
Article
Materials Science, Multidisciplinary
Junkai Li, Chengyu Yang, Yiting Shan, Yang Lu, Chunlin Li, Xiaoshun Zhang, Hongqing Zhou
Summary: In this study, Ba(Mg1/3Nb2/3)O-3 ceramics were prepared with the addition of fumed silica and magnesium carbonate tetrahydrate. The results showed that the permittivity of the ceramics was reduced and the Q x f value was increased. Raman spectra demonstrated an opposite trend between crystal widths and ordering parameters as well as Q x f values.
MATERIALS RESEARCH BULLETIN
(2022)
Article
Materials Science, Ceramics
Yuze Xue, Le Xin, Mingwei Zhang, Panpan Lyu, Luchao Ren, Jiwei Zhai
Summary: Double sintering effectively improves the performance of Ba0.5Sr0.5TiO3-ZnAl2O4 composite ceramics, resulting in higher density, more uniform grain size distribution, and reduced dielectric permittivity, oxygen vacancy content, and grain boundary resistance. The optimum dielectric tunability and Q value are 23.4% and 276, respectively. Double sintering is an effective strategy for adjusting the properties of composite ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Cristina Pascual-Gonzalez, Carolina Elicker, Mario L. Moreira, Sergio Cava, Iasmi Sterianou, Dawei Wang, Antonio Feteira
Summary: (1 - x)KNbO3-xBiMnO(3) (0 <= x <= 0.25) ceramics were prepared using the solid-state reaction method. Bi and Mn were found to have low co-solubility in the orthorhombic structure. Both orthorhombic and pseudocubic crystal structures coexist within a certain range, and the grain size distribution shows bimodal behavior. Several anomalies in the dielectric behavior and phase transitions confirm the coexistence of crystal symmetries. Furthermore, it was discovered that the bandgap of KNbO3 can be tailored by co-doping Bi and Mn, resulting in a narrowing bandgap with increasing x.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Physical
Yongqiang Li, Mupeng Zheng, Mankang Zhu, Yudong Hou
Summary: High-quality (Ca1-xBix)(Mo1-xVx)O-4 ceramics with a tetragonal scheelite structure were prepared at sintering temperatures of 800-925 degrees C. The increase in point defects led to an increase in extrinsic loss, affecting the Qxf value. The (Ca0.65Bi0.35)(Mo0.65V0.35)O-4 ceramic exhibited superior microwave dielectric properties, showing great potential for LTCC application.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Ceramics
Baoyu Deng, Yiming Ma, Tianxiang Chen, Huajing Wang, Jinfeng Lin, Cong Lin, Xiao Wu, Chunlin Zhao, Tengfei Lin, Min Gao, Xinghua Zheng, Changqing Fang
Summary: Dense (K, Na)NbO3 ceramics were successfully fabricated using the cold sintering process with equimolar KOH and NaOH solutions as a transient alkaline flux, showing excellent dielectric and piezoelectric properties at low temperature.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Ceramics
Zhenjun Qing, Huapeng Zou, Xin Zhou, Haiyan Li, An Liu, Shumin Duan, Yingxiang Li, Sen Peng
Summary: Li2Co2Mo3O12 (LCMO) ceramics were synthesized using the solid-state reaction method, and their microwave dielectric properties and influencing factors were studied. It was found that ionic polarizability was the main factor affecting the dielectric constant (er), while relative density had a significant impact on the quality factor (Q x f). In addition, the microwave dielectric properties of LCMO ceramics were closely related to ionicity, lattice energy, bond energy, and thermal expansion coefficient of chemical bonds.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2024)
Article
Materials Science, Ceramics
Jingkang Xu, Xiaohui Wu, Hua Su, Yuanxun Li, Xiaoli Tang
Summary: The addition of LBSCA glass was found to significantly influence the microwave dielectric properties of LNT ceramics, improving the quality factor and reducing the sintering temperature. After sintering at 925 degrees C, the sample with 0.4 wt% LBSCA exhibited excellent performance, making it suitable for low-temperature co-fired ceramic technology.
CERAMICS INTERNATIONAL
(2021)
Article
Crystallography
Jiuyuan Han, Mengjiao Chi, Liu Yang, Bing Liu, Minmin Mao, Hadi Barzegar Bafrooei, Zhongyan Ma, Yingjie Ren, Feng Shi, Ehsan Taheri-Nassaj, Dawei Wang, Kaixin Song
Summary: Dense composites of NaCl-NZO and HB-NZO-NaCl were prepared using the cold sintering process. The resulting ceramic composites showed promising characteristics with comparable permeability and dielectric constants suitable for radio-frequency electronic device applications. These findings indicate potential applications in wireless communication.
Article
Materials Science, Ceramics
Congxue Su, Liang Fang, Laiyuan Ao, Qianbiao Du, Yifan Zhai, Jie Li, Junqi Chen, Ying Tang, Laijun Liu
Summary: By substituting Zr4+ with Sn4+, the packing fraction is increased and the Q x f value is enhanced, resulting in good microwave dielectric properties. A smaller oxygen bond valence contributes to the improvement of the microwave dielectric properties of the material.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Zelai Cheng, Lin Gan, Yuan Liu, Juan Jiang, Tianjin Zhang
Summary: This study investigates the impact of SV addition on the microstructure, dielectric properties, sintering process, and defects behavior of microwave dielectric ceramics. It confirms the formation of SrTiO3 and glass phase, which leads to a decrease in sintering temperature. The variation in dielectric properties follows empirical mixture rules, with a near-zero tau(f) value obtained. The defects behavior, including oxygen vacancies and Ti3+ and V4+ dopants, is characterized, with a higher dielectric loss observed in the SV-added ceramics. Finally, a 0.7Li(2)Zn(3)Ti(4)O(12)-0.3Sr(3)(VO4)(2) ceramic exhibits excellent microwave dielectric properties and compatibility with silver electrode, showing potential applications in low-temperature co-fired ceramics (LTCC).
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xinyuan Lyu, Zhengxin Li, Jingjing Jin, Yuze Xue, Chaogang Yu, Luchao Ren, Mingwei Zhang, Hongqing Zhou
Summary: In this study, novel Li2xCu1-xMoO4 microwave ceramics were prepared and their properties were evaluated. The substitution of Li+ and the creation of Cu+ ions improved the grain size, microstructure densification, and quality factor. The influence of structure on dielectric properties was analyzed, and the ceramic exhibited optimal properties at x = 0.08. The ceramic also showed good chemical stability with the electrode, making it suitable for ultra low temperature co-fired ceramic applications.
CERAMICS INTERNATIONAL
(2022)
Article
Crystallography
Izabela Bobowska, Aleksandra Wypych-Puszkarz, Agnieszka Opasinska, Waldemar Maniukiewicz, Piotr Wojciechowski
Article
Materials Science, Multidisciplinary
Ewa Krysiak, Lukasz Janasz, Bertrand G. R. Dupont, Aleksandra Wypych-Puszkarz, Krzysztof Matyjaszewski, Jacek Ulanski
Article
Nanoscience & Nanotechnology
Angelika Wrzesinska, Alexander Khort, Izabela Bobowska, Adam Busiakiewicz, Aleksandra Wypych-Puszkarz
JOURNAL OF NANOMATERIALS
(2019)
Article
Materials Science, Multidisciplinary
Dmitry S. Kharitonov, Illia Dobryden, Birhan Sefer, Jacek Ryl, Angelika Wrzesinska, Irina Makarova, Izabela Bobowska, Irina I. Kurilo, Per M. Claesson
Article
Polymer Science
Angelika Wrzesinska, Izabela Bobowska, Paulina Maczugowska, Joanna Malolepsza, Katarzyna M. Blazewska, Aleksandra Wypych-Puszkarz
Article
Materials Science, Multidisciplinary
Renata Rybakiewicz, Roman Ganczarczyk, Gabriela Wiosna-Salyga, Izabela Bobowska, Marzena Banasiewicz, Martyna Charyton, Lukasz Skorka, Malgorzata Zagorska, Adam Pron
Article
Acoustics
Dmitry S. Kharitonov, Aliaksandr A. Kasach, Denis S. Sergievich, Angelika Wrzesinska, Izabela Bobowska, Kazimierz Darowicki, Artur Zielinski, Jacek Ryl, Irina I. Kurilo
Summary: The study successfully electrodeposited nanocomposite Cu-Sn-TiO2 coatings with dense distribution of TiO2 particles using ultrasonic agitation. These coatings exhibit excellent antimicrobial properties against E. coli bacteria.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Polymer Science
Angelika Wrzesinska, Aleksandra Wypych-Puszkarz, Izabela Bobowska, Jacek Ulanski
Summary: Flexible dielectric materials are urgently needed for flexible organic field effect transistors (OFETs). This study analyzed the electrical properties of a series of flexible PDMS polymers crosslinked by metal-ligand coordination, showing that the introduction of metal salts increased dielectric permittivity and conductivity. The study also revealed different relaxation behaviors for different salt types, suggesting the potential for achieving high dielectric permittivity without compromising the non-conductive nature of the polymer.
Article
Biochemistry & Molecular Biology
Angelika Wrzesinska, Emilia Tomaszewska, Katarzyna Ranoszek-Soliwoda, Izabela Bobowska, Jaroslaw Grobelny, Jacek Ulanski, Aleksandra Wypych-Puszkarz
Summary: The study investigates the effect of gold nanoparticles (AuNPs) on the electrical properties of flexible poly(dimethylsiloxane) (PDMS) specimens. The results show that even a very low concentration of AuNPs (0.001 wt. %) can effectively improve the dielectric properties of the investigated systems by trapping Cl- counter anions.
Article
Metallurgy & Metallurgical Engineering
A. A. Kasach, D. S. Kharitonov, A. Wrzesinska, I Bobowska, A. A. Predko, V. Romanovskii, I. M. Zharskii, I. I. Kurilo
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
(2020)
Article
Metallurgy & Metallurgical Engineering
D. S. Kharitonov, I. V. Makarova, M. A. Osipenko, V. I. Yanushevskii, A. Wrzesinska, I. Bobowska, I. I. Kurilo
PROTECTION OF METALS AND PHYSICAL CHEMISTRY OF SURFACES
(2020)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)