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1. Super broadband mid-infrared absorbers with ultrathin folded highly-lossy films

Author:
Heng Zhang; Hao Wu; Xiaowen Li; Jiaming Hao; Qunqing Li; Zhiqiang Guan; Hongxing Xu; Chang Liu
Source:
Journal of colloid and interface science 2023 v.629 pp. 254-262
ISSN:
0021-9797
Subject:
aluminum oxide,   etc   ; absorption; camouflage; foil; reflectance; wavelengths;     Show all 6 Subjects
Abstract:
... Super broadband optical absorbers with ultrathin films have been keenly pursued for a long time. Although highly lossy materials with sharp light attenuation have the potential to become super absorbers, a large percent of light from free space is inevitably reflected back for the distinct impedance mismatch. Here, a simple strategy, of which reducing the thickness of highly-lossy thin films to mi ...
DOI:
10.1016/j.jcis.2022.09.046

2. Ethylene combustion performance with varying the N2 content in a porous burner

Author:
Zhongqian Ling; Ling Lu; Xianyang Zeng; Min Kuang; Bo Ling; Chuanji Gao; Chao Zhou
Source:
Energy 2023 v.262 pp. 125321
ISSN:
0360-5442
Subject:
aluminum oxide,   etc   ; combustion; energy; ethylene; pollutants; porous media; temperature; volatile organic compounds;     Show all 8 Subjects
Abstract:
... Direct emissions of volatile organic compounds (VOCs) not only pollute the environment, but also waste a lot of resources. To overcome above problem, this paper creatively proposed the solution by porous media combustion technology. In this study, ethylene with different N₂ content levels of 10%, 30%, and 50% (used to simulate VOCs) was experimentally burned in a self-designed porous medium burner ...
DOI:
10.1016/j.energy.2022.125321

3. Win-Win: Anthropogenic circularity for metal criticality and carbon neutrality

Author:
Xianlai Zeng
Source:
Frontiers of environmental science & engineering 2023 v.17 no.2 pp. 23
ISSN:
2095-2201
Subject:
aluminum,   etc   ; carbon; circular economy; copper; environmental degradation; governance; industry; iron; life cycle assessment; material flow analysis; China;     Show all 11 Subjects
Abstract:
... Resource depletion and environmental degradation have fueled a burgeoning discipline of anthropogenic circularity since the 2010s. It generally consists of waste reuse, remanufacturing, recycling, and recovery. Circular economy and “zero-waste” cities are sweeping the globe in their current practices to address the world’s grand concerns linked to resources, the environment, and industry. Meanwhil ...
DOI:
10.1007/s11783-023-1623-2

4. Utilization of contaminated air pollution control residues generated from sewage sludge incinerator for the preparation of alkali-activated materials

Author:
Keke Sun; Hafiz Asad Ali; Weiyi Ji; Jiaxing Ban; Chi Sun Poon
Source:
Resources, conservation, and recycling 2023 v.188 pp. 106665
ISSN:
0921-3449
Subject:
aluminum silicates,   etc   ; air pollution; air pollution control; chlorides; compression strength; glass; heavy metals; incinerators; liquids; sewage sludge; shrinkage; slags; sulfates;     Show all 13 Subjects
Abstract:
... The air pollution control (APC) residues from the sewage sludge incinerators are harmful to the environment due to their relatively rich soluble salts and heavy metal content. In this paper, the APC residues were pre-treated by water washing at the different liquid to solid ratios (L/S), and a ternary contour diagram was introduced to optimize the composition of slag, waste glass powders and APC r ...
DOI:
10.1016/j.resconrec.2022.106665

5. Red mud-based catalysts for the catalytic removal of typical air pollutants: A review

Author:
Jiawei Chen; Yao Wang; Zhiming Liu
Source:
Journal of environmental sciences (China) 2023 v.127 pp. 628-640
ISSN:
1001-0742
Subject:
aluminum oxide,   etc   ; air; catalytic activity; humans; nitrogen; oxidation; pollution; solid wastes; structure-activity relationships; sustainable development; value added; volatile organic compounds; China;     Show all 13 Subjects
Abstract:
... Red mud, as a solid waste produced during the alumina production, can cause severe eco-environmental pollution and health risks to human. Therefore, the resourcing of this type of solid waste is an effective way for the sustainable development. This paper reviews the recent progress on red mud-based catalysts for the removal of typical air pollutants, such as the catalytic reduction of nitrogen ox ...
DOI:
10.1016/j.jes.2022.06.027

6. Distribution of metals in different environmental compartments and oxidative stress biomarkers in Bryconops caudomaculatus (Osteichthyes: Characiformes) from a bauxite mining area in the Eastern Amazon

Author:
Sildiane Martins Cantanhêde; Irina Sofia Cardoso de Carvalho; Franciele Rovasi Adolfo; Gabriela Leal; Gabriel Moraes Reis; Leandro Machado de Carvalho; Luciano Fogaça de Assis Montag; Lílian Lund Amado
Source:
Environmental research 2023 v.216 pp. 114391
ISSN:
0013-9351
Subject:
aluminum,   etc   ; Bryconops; anthropogenic activities; antioxidant activity; antioxidants; bauxite; biomarkers; fish; glutathione transferase; hydrology; laws and regulations; liver; muscles; oxidative stress; research; sediments; Amazonia;     Show all 17 Subjects
Abstract:
... The Eastern Amazon is rich in bauxite ore. The extraction and processing of bauxite lead to the mobilization of Aluminum (Al) and other metals in environmental. We evaluated the metals (Al, Mn, Ba, and Cr) concentration in tissue, water, and sediment associated with antioxidant and oxidative damage responses in Bryconops caudomaculatus. The samplings were done in two hydrological periods (post-rai ...
DOI:
10.1016/j.envres.2022.114391

7. Homogeneous reduction for heavy metals from pickling sludge with aluminum nitride from secondary aluminum dross in aluminosilicate melt ‘solution’ environment

Author:
Hanlin Shen; Bo Liu; Junjie Zhang; Jun Liu; Shengen Zhang
Source:
Journal of cleaner production 2022 v.362 pp. 132358
ISSN:
0959-6526
Subject:
aluminum; aluminum nitride; aluminum silicates,   etc   ; heavy metals; reaction mechanisms; sludge; temperature;     Show all 7 Subjects
Abstract:
... Secondary aluminum dross (SAD) and pickling sludge were hazardous wastes. In this work, aluminum nitride (AlN) from SAD was used to reduce heavy metals from pickling sludge by pyrometallurgy. Reaction mechanism was studied after exploring transformation of heavy metals and AlN during reaction process. It was found that reduction reaction between heavy metals and AlN was homogeneous reduction react ...
DOI:
10.1016/j.jclepro.2022.132358

8. Growth modes of grain boundary precipitate in aluminum alloys under different lattice misfits

Author:
X. Shuai; H. Mao; S. Tang; Y. Kong; Y. Du
Source:
Journal of materials science 2022 v.57 no.4 pp. 2744-2757
ISSN:
0022-2461
Subject:
aluminum; aluminum alloys,   etc   ; quantitative analysis; solutes;     Show all 4 Subjects
Abstract:
... The properties of aluminum alloys are profoundly affected by a rich variety of precipitates. Their precipitation behaviors are often very different from each other due to a wide range of lattice misfits between the precipitates and the matrix. This makes the study of mechanisms of the formation of aluminum alloy precipitates very complex and often controversial. Here, the phase-field crystal metho ...
DOI:
10.1007/s10853-021-06852-8

9. Mathematical modeling of electron density arrangement in CSDG MOSFET: a nano-material approach

Author:
Naveenbalaji Gowthaman; Viranjay M. Srivastava
Source:
Journal of materials science 2022 v.57 no.18 pp. 8381-8392
ISSN:
0022-2461
Subject:
aluminum; aluminum alloys,   etc   ; gallium; industry; semiconductors;     Show all 5 Subjects
Abstract:
... The CMOS technology with MOSFETs below 70 nm node for Semiconductor Industry Association roadmap has outstanding resistance to short-channel effect and improves the scalability of the device. Cylindrical surrounding double-gate (CSDG) MOSFETs have been proposed as a suitable CMOS substitute to reduce the area and power tradeoff. This paper presents mathematical modeling of the electron density arr ...
DOI:
10.1007/s10853-021-06717-0

10. Microstructural and mechanical analysis of 6063-T6 aluminum alloy joints bonded by friction stir welding

Author:
MoLin Su; XueYan Qi; LianYong Xu; Qi Feng; YongDian Han; Lei Zhao
Source:
Journal of materials science 2022 v.57 no.31 pp. 15078-15093
ISSN:
0022-2461
Subject:
aluminum; aluminum alloys,   etc   ; fatigue strength; friction;     Show all 4 Subjects
Abstract:
... For improving the comprehensive mechanical properties of aluminum alloys (AAs) joint, the 6063-T6 AAs with thickness of 10 mm were bonded via the double-sided (DS) friction stir welding technique. Compared with the single-sided (SS) AAs joint, the grains in various regions of DS joints were refined in various degrees. In addition, the high-angle grain boundaries frequency of nugget zone reached to ...
DOI:
10.1007/s10853-022-07541-w

11. Efficient removal of phosphorus from constructed wetlands using solidified lanthanum/aluminum amended attapulgite/biochar composite as a novel phosphorus filter

Author:
Hongbin Yin; Man Zhang; Li Huo; Pan Yang
Source:
Science of the total environment 2022 v.833 pp. 155233
ISSN:
0048-9697
Subject:
aluminum; aluminum chloride; aluminum phosphate,   etc   ; biochar; environment; lanthanum; pH; phosphorus; solubility; sorption; total phosphorus;     Show all 11 Subjects
Abstract:
... Developing a suitable substrate with high phosphorus (P) sorption capacity, low solubility, and high hydraulic loading for constructed wetlands (CWs) is crucial for their functions. In this study, we used attapulgite and biochar as base materials to prepare a lanthanum/aluminum (La/Al) amended attapulgite/biochar composite as a novel P filter using a one-step drying process and subsequent high-tem ...
DOI:
10.1016/j.scitotenv.2022.155233

12. Counting the water: Characterize the hydration level of aluminum adjuvants using contrast matching small-angle neutron scattering

Author:
Amy Y. Xu; Khaleda C. Rinee; Carrie Stemple; Maria Monica Castellanos; Kunal Bakshi; Susan Krueger; Joseph E. Curtis
Source:
Colloids and surfaces 2022 v.648 pp. 129285
ISSN:
0927-7757
Subject:
aluminum; aluminum hydroxide; aluminum phosphate,   etc   ; adjuvants; freeze-thaw cycles; neutrons; sucrose; thermal stability; vaccines;     Show all 9 Subjects
Abstract:
... Adjuvants are often included in vaccine formulations to enhance and modulate immune responses against pathogenic antigens. Aluminum-based adjuvants are prepared as hydrated colloids and are widely used due to their high efficacy and strong safety record. Previous studies have shown that freezing and thawing of aluminum adjuvants can lead to the aggregation of adjuvant particles, resulting in reduc ...
DOI:
10.1016/j.colsurfa.2022.129285

13. Hydration of alumina (Al2O3) toward advancing aluminum particles for energy generation applications

Author:
Mahmuda Ishrat Malek; Chi-Chin Wu; Scott D. Walck; Michelle L. Pantoya
Source:
Colloids and surfaces 2022 v.652 pp. 129740
ISSN:
0927-7757
Subject:
aluminum; aluminum hydroxide; aluminum oxide,   etc   ; X-ray diffraction; combustion; energy; microscopy; pH; slurries; spectroscopy; temperature;     Show all 11 Subjects
Abstract:
... Transforming metal particle combustion may require alteration of the metal oxide passivation shell surrounding the metal core. One approach for aluminum (Al) relies on the hydrated form of the metal oxide to incite surface reactions. This study explores the conditions required for hydrating alumina (Al₂O₃) particles and then extends those conditions toward hydration of the Al₂O₃ passivation layer ...
DOI:
10.1016/j.colsurfa.2022.129740

14. Significant reinforcement of mechanical properties in laser welding aluminum alloy with carbon nanotubes added

Author:
Tianyu Xu; Shaowei Zhou; Xiuquan Ma; Han Wu; Lin Zhang; Meng Li
Source:
Carbon 2022 v.191 pp. 36-47
ISSN:
0008-6223
Subject:
aluminum; aluminum alloys,   etc   ; carbon; carbon nanotubes; porosity; tensile strength;     Show all 6 Subjects
Abstract:
... Laser welding 2A12 (Chinese grade) aluminum alloy with carbon nanotubes (CNTs) added was carried out, and the mechanism of CNTs strengthening joints was explored in detail. Firstly, to achieve the same penetration depth, single laser welding and laser welding with CNTs require speeds of 40 mm/s and 60 mm/s respectively. The addition of CNTs increases the welding efficiency by 50%. Furthermore, the ...
DOI:
10.1016/j.carbon.2022.01.033

15. Self-Rolled-Up Aluminum Nitride-Based 3D Architectures Enabled by Record-High Differential Stress

Author:
Apratim Khandelwal; Zhongjie Ren; Shunya Namiki; Zhendong Yang; Nitin Choudhary; Chao Li; Ping Wang; Zetian Mi; Xiuling Li
Source:
ACS applied materials & interfaces 2022 v.14 no.25 pp. 29014-29024
ISSN:
1944-8252
Subject:
aluminum; aluminum nitride,   etc   ; films (materials); silicon nitride; thermal stability;     Show all 5 Subjects
Abstract:
... Aluminum nitride (AlN) continues to kindle considerable interest in various microelectromechanical system (MEMS)-related fields because of its superior optical, mechanical, thermal, and piezoelectric properties. In this study, we use magnetron sputtering to tailor intrinsic stress in AlN thin films from highly compressive (−1200 MPa) to highly tensile (+700 MPa), with a differential stress of 1900 ...
DOI:
10.1021/acsami.2c06637

16. Facile synthesis of hydroxyl aluminum oxalate based on the hydrothermal reaction of boehmite and oxalic acid

Author:
Haiyang Chen; Bo Ren; Meng Liu; Tingwei Qin; Qiang Guo; Guangqi Li; Diansheng Gong; Guanglin Cheng; Junhong Chen; Bin Li
Source:
Colloids and surfaces 2022 v.639 pp. 128344
ISSN:
0927-7757
Subject:
aluminum; aluminum hydroxide,   etc   ; adsorption; boehmite; oxalates; oxalic acid; thermal degradation;     Show all 7 Subjects
Abstract:
... The preparation of hydroxyl aluminum oxalate (HAO) employing the facile hydrothermal reaction of boehmite (γ-AlOOH) and oxalic acid is reported in this work for the first time. The high purity HAO with rhombic shape was successfully prepared at 200 °C for 8 h. The synthesized HAO started thermal decomposition at about 360 °C and the mass loss was up to 52%, both higher than that of aluminum hydrox ...
DOI:
10.1016/j.colsurfa.2022.128344

17. Chainlike products from the reaction of aluminum nanoparticles in HF atmosphere: an atomic insight

Author:
Gang Li; Liangliang Niu; Xianggui Xue; Chaoyang Zhang
Source:
Journal of materials science 2022 v.57 no.35 pp. 16948-16964
ISSN:
0022-2461
Subject:
aluminum; aluminum fluoride,   etc   ; molecular dynamics; nanoparticles; nanorods; particle size; temperature;     Show all 7 Subjects
Abstract:
... The fluorination of aluminum nanoparticles (ANPs) has been widely used in energetic formulations and nanomaterials preparation, with various aluminum fluoride nanostructures generated. However, the structural evolution of ANPs in fluorination with atomic-level understanding still remains unrevealed and unclear. In this work, we perform reactive molecular dynamics simulations to reveal the structur ...
DOI:
10.1007/s10853-022-07714-7

18. Nanoengineered nanochannels for thermally ionic nanofluidic energy harvesting

Author:
Nguyen Van Toan; Truong Thi Kim Tuoi; Naoki Inomata; Megat Muhammad Ikhsan Megat Hasnan; Masaya Toda; Ioana Voiculescu; Suhana Mohd Said; Takahito Ono
Source:
Energy conversion and management 2022 v.264 pp. 115760
ISSN:
0196-8904
Subject:
aluminum; aluminum oxide,   etc   ; administrative management; electrolytes; energy conversion; oxidation; silicon; temperature;     Show all 8 Subjects
Abstract:
... This work demonstrates thermal-to-electric energy conversion based on ionic nanofluidic transport in nanochannels inducted by a temperature gradient. Two types of highly periodic and high aspect ratio nanochannels have been fabricated in a silicon (Si) substrate and in an aluminium oxide (Al₂O₃) membrane. Silicon nanochannels with diameter of 100 nm and height of 300 μm have been produced by metal ...
DOI:
10.1016/j.enconman.2022.115760

19. Investigation on microstructure and selected properties of aluminum oxide–copper–nickel ceramic–metal composites

Author:
J. Zygmuntowicz; J. Kosiorek; P. Piotrkiewiecz; B. Zacharko; M. Wachowski; W. Kaszuwara
Source:
International journal of environmental science and technology 2022 v.19 no.7 pp. 6531-6540
ISSN:
1735-1472
Subject:
aluminum; aluminum oxide,   etc   ; copper; environmental science; hardness; liquids; microstructure; nickel; technology;     Show all 9 Subjects
Abstract:
... A new ternary system of ceramic–metal composites has been fabricated from alumina, copper, and nickel powders by the slip casting method. The research aimed to avoid copper leaking during the sintering process of the formation while processing the CuNi phase. Five different compositions were examined, differing in the ratio of nickel to copper. Stable slurries with good casting properties were pre ...
DOI:
10.1007/s13762-021-03569-8

20. Microstructure, mechanical properties, and crack formation of aluminum alloy 6063 produced via laser powder bed fusion

Author:
Feng Li; Taomei Zhang; Yiyou Wu; Chao Chen; Kechao Zhou
Source:
Journal of materials science 2022 v.57 no.21 pp. 9631-9645
ISSN:
0022-2461
Subject:
aluminum; aluminum alloys,   etc   ; anisotropy; geometry; microstructure; solidification; tensile strength; thermal stress;     Show all 8 Subjects
Abstract:
... Additive manufacturing provides alternative solutions for complex geometry and design freedom for the customization of aluminum alloys, while the unique microstructure as well as the complex solidification behavior is of great concern due to the severe thermal stress in the layer-by-layer accumulated process. In this work, the effects of laser power, laser scanning speed, and hatch spacing on the ...
DOI:
10.1007/s10853-022-06993-4