Article
Chemistry, Physical
Yanlin Pan, Di Zhang, Haoran Liu, Linzhong Zhuang, Jishan Zhang
Summary: The research found that by increasing the zinc and copper content in Al-Mg-Zn(-Cu) alloys, the strength and corrosion resistance of the alloy can be improved. The density and lattice spacing of intragranular precipitates increase while precipitate sizes decrease, resulting in increased strength. Additionally, enhancing the intergranular corrosion resistance can be achieved by reducing the potential between grain boundary precipitates and the Al matrix.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Shilong Wei, Richu Wang, Hui Zhang, Chunting Xu, Ying Wu, Yan Feng
Summary: The Cu/Mg ratio affects the precipitation rate and mechanical properties of Al-Zn-Mg-Cu alloys, with alloys with lower Cu/Mg ratio exhibiting higher strength and slower coarsening rate. As the Cu/Mg ratio increases, the fracture mode changes from brittle to ductile, and alloys with higher Cu/Mg ratio have coarser and wider grain boundary precipitates.
JOURNAL OF MATERIALS SCIENCE
(2021)
Article
Chemistry, Physical
Xinxin Zhang, You Lv, Teruo Hashimoto, Jan-Olov Nilsson, Xiaorong Zhou
Summary: In this study, the influence of trace level Cu on intergranular corrosion in AA6082 alloy was investigated using accelerated corrosion testing and high resolution electron microscopy. It was found that Al2Cu precipitates promoted IGC at the grain boundaries.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Kai Zhao, Guang Han, Tong Gao, Huabing Yang, Zhao Qian, Kaiqi Hu, Guiliang Liu, Jinfeng Nie, Xiangfa Liu
Summary: This study comprehensively investigates the interface precipitation and corrosion behaviors in cast and extruded TiCp/7050 composites, revealing the segregation and preferential dissolution of aging precipitates at interfaces, as well as the impact of TiC distribution configurations on corrosion resistance, providing insights for designing and fabricating high-performance composites.
Article
Metallurgy & Metallurgical Engineering
Ding-ling Yuan, Song-yi Chen, Kang-hua Chen, Lan-ping Huang, Jiang-yu Chang, Liang Zhou, Yun-feng Ding
Summary: The study found that the tensile strength enhancement of high Zn-containing Al-Zn-Mg-Cu alloys was mainly due to the high density nano-scale matrix precipitates. The SCC plateau velocity was significantly higher in the alloy with 11.0 wt.% Zn compared to the alloy with 7.9 wt.% Zn, which was attributed to Zn enrichment in grain boundary precipitates and wide precipitates-free zones.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2021)
Article
Materials Science, Multidisciplinary
Chuanlai Liu, Alistair Garner, Huan Zhao, Philip B. Prangnell, Baptiste Gault, Dierk Raabe, Pratheek Shanthraj
Summary: The incorporation of CALPHAD database into a phase-field framework successfully simulated the complex kinetics of non-equilibrium grain boundary microstructures in high-strength Al-Zn-Mg-Cu alloys, which is crucial for understanding the quenching process of the alloys.
Article
Materials Science, Multidisciplinary
Lei Jiang, Zhihao Zhang, Huadong Fu, Shiyu Huang, Dawei Zhuang, Jianxin Xie
Summary: In this study, the corrosion behavior of Al-Zn-Mg-Cu alloys with different components in NaCl solution was experimental studied. The composition changes of micron and nano secondary phases during corrosion were semi-quantitatively characterized. The effect of the type and quantity of the secondary phases on the corrosion resistance and mechanism was discussed. The results showed that AA7050 and AA7136 alloys exhibited localized self-corrosion, while the E2 alloy designed by authors had significantly better pitting resistance due to the absence of secondary phases.
MATERIALS CHARACTERIZATION
(2022)
Article
Metallurgy & Metallurgical Engineering
Yuan-wei Sun, Zi-yi Wang, Qing-lin Pan, Wei-xue Chen, Zi-kang Yin, Dong-kun Li, Qian Zheng
Summary: The localized corrosion modes and their dependence on ageing conditions were investigated for an Al-7.82Zn-1.99Mg-2.41Cu-0.12Zr alloy. Intergranular corrosion was dominant in the UA temper due to small grain boundary precipitates (GBPs) and their low distribution continuity. Pitting corrosion was dominant in the T74 and T77 tempers due to larger GBPs and their discontinuous distribution. The corrosion mode of the T6 temper evolved from pitting corrosion to intergranular corrosion with immersion time.
JOURNAL OF CENTRAL SOUTH UNIVERSITY
(2023)
Article
Nanoscience & Nanotechnology
Ruixuan Li, Zheng Ren, Yuan Wu, Zhanbing He, Peter K. Liaw, Jingli Ren, Yong Zhang
Summary: Designing a quinary alloy based on the concept of high-entropy alloys enables the achievement of high strength and deformability at high zinc content levels in Al-based alloys. The precipitation transformation plays a key role in contributing to the desired mechanical properties.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Multidisciplinary
Yuqiao Sun, Yuhong Luo, Qinglin Pan, Bing Liu, Liang Long, Weiyi Wang, Ji Ye, Zhiqi Huang, Shengqian Xiang
Summary: The addition of Sc element in Al-Zn-Mg-Cu-Zr alloy contributes to significant grain refinement, increased strength and hardness, as well as improved resistance to corrosion, with lower tendency and slower rates of corrosion observed.
MATERIALS TODAY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
Muhammad Abubaker Khan, Chenhao Xu, Muhammad Hamza, Mohamed A. Afifi, Naeem Akhtar Qaisrani, Huibin Sun, Bin Wang, Waheed Qamar Khan, Ghulam Yasin, Wei -Bing Liao
Summary: An investigation was conducted to study the influence of peak-ageing and double ageing treatments on the precipitation along different grain boundary orientations of an extruded Al-Zn-Mg-Cu alloy. The results showed that the type of grain boundary precipitates varied depending on the grain boundary orientation and treatment. The study provides new insights into engineering the grain boundary precipitates to achieve desired precipitate types and corresponding mechanical properties.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Nanoscience & Nanotechnology
Ruoqi Li, Naoki Takata, Asuka Suzuki, Makoto Kobashi
Summary: A modified heat-resistant Al-Mg-Zn-Cu-Ni quinary alloy with superior high-temperature strength and creep rupture life was designed. The addition of Cu and Ni elements extended the creep rupture life significantly.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Metallurgy & Metallurgical Engineering
Fenglong Zhai, Liping Wang, Xin Gao, Yicheng Feng, Sicong Zhao, Lei Wang
Summary: Rare earth elements can significantly improve the mechanical properties of the alloy through grain refinement and precipitation strengthening. Among the studied elements, Er has the strongest strengthening effect, significantly increasing the tensile strength and yield strength of the alloy. Additionally, alloys containing Sm exhibit the best plasticity due to the fine recrystallized grains obtained after solid solution treatment.
TRANSACTIONS OF THE INDIAN INSTITUTE OF METALS
(2021)
Article
Materials Science, Multidisciplinary
Wenyuan Gong, Ruixuan Li, Mengjing Xie, Yuan Wu, Jishan Zhang
Summary: In this study, the effect of Mg content and precipitation behaviors in Al-Mg-Si-Cu-Zn alloys on alloy performance was reported. By increasing the alloying degree, the low strength of 6xxx aluminum alloys was improved and the strength of the alloys exceeded that of traditional 6xxx aluminum alloys. The alloy exhibited excellent strengthening effects at high temperatures and is expected to have significant effects in practical applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Chemistry, Physical
Liangyu Li, Jiawei Tang, Zhengqin Liu, Yiren Wang, Yong Jiang, Gang Sha
Summary: The micro-alloying effects of Ni on the microstructure evolution and mechanical properties of an Al-Zn-Mg-Cu-Sc-Zr alloy were thoroughly investigated using electron/atom microscopic characterization and first-principles calculations. A trace addition of 0.2 wt% Ni can induce a new primary phase of Al3(Ni, Cu) and refine the grain size to 23 μm. It was found that Ni promotes the precipitation of the eta phase, improves its thermal stability, and enhances the GB binding by segregating to Al GBs. The Ni micro-alloyed Al-Zn-Mg-Cu-Sc-Zr alloys exhibit high strength and thermal stability with acceptable plasticity, even with a low Cu/Mg atomic ratio (approximately 0.22), compared to most 7055 Al alloys.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Muhammad Haris Azhar, Tayyaba Noor, Naseem Iqbal, Neelam Zaman, Sarah Farrukh
Summary: This study uses a novel adsorbent Metal Organic Framework (MOF) and its composites to adsorb CO2. Experiment results show that 5 wt% g-C3N4/Ni-BDC MOF exhibits the highest adsorption capacity.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ayumu Nodera, Shinya Aikawa
Summary: In this study, a CO2 sensor capable of low-temperature operation was fabricated using an open-channel-type thin-film transistor structure with a polar surface of an oxide semiconductor. The sensor showed a sensitivity 2.9 times greater than that under an inert N2 atmosphere at an operating temperature of only 150 degrees C. The results suggest that TFTs fabricated with polar surfaces of oxide semiconductors are useful for gas-sensing applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bindhyabasinee Mishra, Jyotirmayee Nanda, Subhra S. Brahma, K. J. Sankaran, R. Sakthivel, S. Ghadei, S. Suman
Summary: In this study, a series of polycrystalline mixed spinel ferrites were synthesized and characterized. The Mg0.5Zn0.5La0.05Fe1.95O4 ferrite showed the best response and recovery time, indicating its potential as a material for LPG sensing.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Rajashree Panda, Mitrabhanu Behera, A. Arun Kumar, Dhananjay Joshi
Summary: Rare earth doped aluminate-based phosphors are preferred over sulfide-based phosphors. The unique luminescence features of lanthanide-based materials are being utilized for multidisciplinary research and inventive applications. The past years have seen an increase in research interest in aluminate-based phosphors, leading to improvements in their long-lasting phosphorescence and phosphorescence efficiencies. Combustion synthesis route is an efficient technique for preparing nano-phosphor due to its simplicity and cost-effectiveness.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Younes Zohrabi
Summary: Water is essential for the survival of living organisms, but industrialization has led to contamination of water sources with heavy metals and harmful pollutants. Magnetic nano ferrites have shown potential in effectively removing heavy metals from water due to their magnetic characteristics, high surface area, surface active sites, chemical stability, and ease of modification. This review explores recent literature on the synthesis and application of magnetic ferrites for removing heavy metals from water, aiming to provide a comprehensive understanding for future research.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Baolin Liu, Chenxin Xie, Guanglei Qian, Lishan Zhou, Chenglei Zhang, Lingzhi Zhu
Summary: In this study, a self-cleaning CuO-PdO-Pd/Ti membrane has been developed for the removal of small-sized pollutants. The membrane exhibited superior removal ability and permeability compared to conventional membranes, and maintained high efficiency even after repeated tests. The CuO-PdO-Pd/Ti membrane also showed excellent removal efficiency when treating real wastewater, indicating its high potential for practical applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Debabrata Panda, Akhilesh Kumar Sahu, Krunal M. Gangawane
Summary: A variety of hierarchical nanoporous silica aerogels were synthesized from well-dispersed silica sols, exhibiting diversified particle distributions and excellent thermal properties. The silica aerogels showed low thermal conductivity and high-temperature resilience. Surface modification and dilution of silica sols further improved the thermal resistance of the aerogels. The resilient skeleton structure developed from tiny particles effectively restricted heat dissipation and maintained the porous network at high temperatures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hardy Shuwanto, Hairus Abdullah, Young Ku, Jenni Lie
Summary: In this study, a defective system of V-doped Fe2O3 with Pt as a cocatalyst was used for photoelectrochemical water oxidation. The defects in the VFPt-2.5 photoanode were characterized by XPS and EPR analyses. The SEM and TEM analyses revealed that the electrodeposited V-doped alpha-Fe2O3 had a nanosized morphology with an average diameter of 12 nm and a thickness of 300 nm. Under light irradiation, the VFPt-2.5 photoanode achieved a remarkable onset potential and photocurrent density. The stability test showed that Pt helped overcome the charge recombination caused by surface states.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Reza Gholipur, Hemin Mohammed Ali Khalifa, Khatereh Afrouzeh
Summary: Developing doped cathode materials is crucial for achieving low cost and high-performance energy storage. LiMn1.977(Ce, Cu, Ti, CeCuTi)0.023O4 nanoparticles show unmatched high structural stability, capacity, and safety during charge/discharge cycles. Ti-doped LiMn2O4 cathode calcined at 700 degrees C demonstrates the highest capacity and retention when multi-walled carbon nanotubes are added. The presence of titanium increases the porosity for reversible lithium storage and the dielectric constant.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
T. Amutha, M. Rameshbabu, S. Sasi Florence, G. Ramalingam, S. Muthupandi, K. Prabha
Summary: This research provides an overview of the structural analysis and magnetic characteristics of dilute magnetic semiconductor oxides (DMSOs) based on binary metal oxide nanomaterials with different ferromagnetic or paramagnetic dopants. The coprecipitation method was used to create nanoparticle samples, and the results showed certain ferromagnetic behavior and increased magnetic properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Preeti Kumari, Vipul Srivastava, Ramesh Sharma, Hamid Ullah
Summary: In this study, the rare-earth ferrites perovskite RFeO3 (R = Pr, Nd) were investigated for their various properties including structural, electronic, magnetic, optical, thermodynamic, and thermoelectric behavior. The study found that these materials exhibit half-metallic behavior under certain conditions, and their optical and thermoelectric properties were evaluated, making them potential candidates for spintronic devices and UV absorbers.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shuting Yuan, Tianchi Wang, Tian Feng, Jian Kong
Summary: In this study, Fe/Fe3O4/C hollow electromagnetic wave absorbers were prepared using hollow ceiba fibers as templates. The proposed hollow structure could reflect and scatter electromagnetic waves multiple times, leading to significant energy consumption. The impedance matching of magnetic materials and biochar enabled the joint absorption of magnetic and dielectric losses to absorb electromagnetic waves.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
G. R. Mamatha, B. R. Radha Krushna, J. Malleshappa, S. C. Sharma, Satish Kumar, C. Krithika, Nandini Robin Nadar, Dileep Francis, K. Manjunatha, Sheng Yun Wu, H. Nagabhushana
Summary: Nanostructured SrAl2O4:Tb3+/M (M = Li+, Na+, K+, Ca2+, Bi3+) green nanophosphors were synthesized using an environmentally friendly combustion process and Areca nut as a sustainable fuel source. The introduction of alkali metal co-dopants optimized the luminescent intensity and showed potential for data security applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tomoyuki Tachibana, Akihiro Yabuki
Summary: A one-step thermal-reduction method was used to synthesize copper sulfide films with different compositions and pillar-like structures, through adjusting the sulfur ratio and incorporating excess sulfur during the synthesis process.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Mahdy, I. K. El Zawawi, Manal Mounir Ahmad
Summary: Pure PVA and its nanocomposites with CuO and/or CoFe2O4 films were prepared and characterized. The optical properties of the films can be modulated by controlling the percentage of CuO and/or CoFe2O4. The nanocomposites exhibit good ferromagnetic behavior, making the prepared films potentially useful in antenna system miniaturization and flexible magneto-electronic applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)