Advanced Powder Technology最新文献_第9页

Mechanistic study on the properties of self-assembled gels for mining based on the valence modulation of inorganic salt cations

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-03 DOI: 10.1016/j.apt.2025.104803

Haiming Yu , Han Qi , Yao Xie , Wang Li , Xin Qiao

{"title":"Mechanistic study on the properties of self-assembled gels for mining based on the valence modulation of inorganic salt cations","authors":"Haiming Yu , Han Qi , Yao Xie , Wang Li , Xin Qiao","doi":"10.1016/j.apt.2025.104803","DOIUrl":"10.1016/j.apt.2025.104803","url":null,"abstract":"<div><div>This research aims to enhance the efficacy of dust reduction through water injection techniques on dust sources in coal mine environments. Focusing on a uniform acid distribution water injection method, we investigated the influence of inorganic salt cations on self-assembled gels, analyzing factors such as viscosity, rheological properties, wormlike micelle length, and hydrogen bond formation. The study reveals the internal mechanisms by which inorganic salt cations affect wormlike micelle behavior within self-assembled gels. Results suggest that increasing cationic valence correlates with enhanced viscosity of the self-assembled gel (SSA). Notably, the self-assembled gel containing Al<sup>3+</sup> (SSA/Al<sup>3+</sup>) exhibited the highest viscosity, reaching 0.48 Pa.s. Both wormlike micelle length and solution potential showed an upward trend, with micelle length in SSA/Al<sup>3+</sup> solution reaching 154 nm. The SSA/Al<sup>3+</sup> system formed tenfold more hydrogen bonds than the self-assembled gel without ion addition (SSA/None), indicating enhanced intermolecular forces and promoted cluster aggregation. Micelle radius expanded from 26.21 Å to 53.83 Å. In conclusion, this study analyzes the mechanism by which different cations influence the tackifying effect of self-assembled gels, in order to provide a theoretical basis for the application of self-assembled gels in coal mining operations.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 3","pages":"Article 104803"},"PeriodicalIF":4.2,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143151448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of heat treatment on structural and magnetic features of nanostructured Ni-Co-Mn-Al Heusler alloy obtained by planetary ball mills

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2025.104783

M. Triki, M. Azzaz

{"title":"Effect of heat treatment on structural and magnetic features of nanostructured Ni-Co-Mn-Al Heusler alloy obtained by planetary ball mills","authors":"M. Triki, M. Azzaz","doi":"10.1016/j.apt.2025.104783","DOIUrl":"10.1016/j.apt.2025.104783","url":null,"abstract":"<div><div>This paper investigates the structural, microstructural and magnetic properties observed at room temperature and after high-temperature heat treatment of Ni-Co-Mn-Al Heusler alloy, produced by high-energy ball milling. A number of characterization techniques were employed to study morphology, structural composition, thermal transitions, phase changes and magnetic shifts, including: room and high temperature XRD analysis, SEM-EDXS, DSC, TEM and VSM. The obtained alloy is a homogeneous mixture of agglomerated rounded grains with an average size of around 60 µm, composed mainly of a metastable martensitic phase (<em>L</em>1<sub>0</sub>) and a minority austenitic phase (B2). High-temperature XRD characterization confirms the complete formation of the ordered B2 Heusler phase from 573 K. Crystallite size increases with temperature, but microdeformations drop significantly due to relaxation of residual stresses. Magnetic measurements show that magnetization saturation, and coercivity values increase after each high-temperature heat treatment, making the alloy’s magnetic behavior softer. The increase in saturation magnetization values indicates that a greater number of magnetic domains are aligned in the same direction within the material, enabling it to be more magnetized. This improvement in magnetic performance makes the material more suitable for various applications such as transformers, electric motors or magnetic sensors.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 2","pages":"Article 104783"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131166","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Jet-milling co-grounds of APIs with polysorbate 80, lecithin and sucrose esters: Particle characteristics and impacts on agglomeration and dissolution efficiency

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2024.104764

Wanlop Weecharangsan , Robert J. Lee

{"title":"Jet-milling co-grounds of APIs with polysorbate 80, lecithin and sucrose esters: Particle characteristics and impacts on agglomeration and dissolution efficiency","authors":"Wanlop Weecharangsan , Robert J. Lee","doi":"10.1016/j.apt.2024.104764","DOIUrl":"10.1016/j.apt.2024.104764","url":null,"abstract":"<div><div>The jet-milling co-grounds of active pharmaceutical ingredients (APIs) with excipients, including polysorbate 80 (PS), lecithin (LT) and sucrose esters (SEs), were characterized for particle size, specific surface area, scanning electron microscopy (SEM), and dissolution testing. Particle size analysis indicated that increasing proportion of PS or LT in the co-grounds either increased or maintained particle size, while the SEs-API co-grounds exhibited a reduction or no change in size. Specific surface area increased with higher proportions of SEs in the co-grounds but decreased for PS-API and LT-API co-grounds. SEM analysis showed that PS and LT promoted agglomeration in the co-grounds, while SEs reduced agglomeration. Dissolution profiles fluctuated depending on the extent of agglomeration. In conclusion, co-grinding with PS, LT and SEs can enhance the dissolution efficiencies of APIs. SEs, in particularly, demonstrated the ability to reduce agglomeration and improve the dissolution efficiency, suggesting that SEs may aid in simplifying the manufacturing process of poorly water-soluble drugs and enhanced their dissolution performance.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 2","pages":"Article 104764"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131459","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Full title (Editorial Board Members)

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/S0921-8831(25)00017-2

引用次数: 0

Cross bond DEM (XB-DEM) for analyzing deformation and breakage behavior of particles

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2024.104762

Kizuku Kushimoto, Junya Kano

{"title":"Cross bond DEM (XB-DEM) for analyzing deformation and breakage behavior of particles","authors":"Kizuku Kushimoto, Junya Kano","doi":"10.1016/j.apt.2024.104762","DOIUrl":"10.1016/j.apt.2024.104762","url":null,"abstract":"<div><div>Cross Bond Discrete Element Method (XB-DEM) was developed as a new simulation model for analyzing the deformation and breakage behavior of particles. A key feature of XB-DEM is that the parameters correlated with the deformation and breakage behavior of particles can uniquely be determined by single particle compression tests. In XB-DEM, a particle was represented by a cluster of constituent particles whose center and surface vicinity were connected with the bond units that have the same components. The bond unit was composed of a bond spring and a bond damper and ruptured when the extension of the bond unit exceeded the rupture extension. Consequently, the parameters that correlated with the deformation and breakage behavior of the particles were only the bond spring coefficient and the rupture extension of the bond unit, considering that the bond damper coefficient was set to achieve critical damping. It was confirmed that the parameters of XB-DEM can be determined by the slope and breakage displacement of load–displacement diagrams of single particle compression tests. Furthermore, the deformation and breakage behavior of the simulated particles coincided with the experimental observations, and the simulated load–displacement diagrams quantitatively agreed with the measured ones.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 2","pages":"Article 104762"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131465","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of interlocking on the compressive strength of agglomerates composed of cohesive nonconvex particles

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2025.104780

Trieu-Duy Tran , Saeid Nezamabadi , Jean-Philippe Bayle , Lhassan Amarsid , Farhang Radjai

{"title":"Effect of interlocking on the compressive strength of agglomerates composed of cohesive nonconvex particles","authors":"Trieu-Duy Tran , Saeid Nezamabadi , Jean-Philippe Bayle , Lhassan Amarsid , Farhang Radjai","doi":"10.1016/j.apt.2025.104780","DOIUrl":"10.1016/j.apt.2025.104780","url":null,"abstract":"<div><div>Despite the important role of fine particle agglomerates in nature and powder technology, the physical mechanisms underlying their strength are still not well understood. In particular, the effects of particle shape in association with cohesive-frictional interactions between particles remain to be elucidated on a quantitative basis. We use particle dynamics simulations to create agglomerates composed of hexapod-shaped particles and analyze their mechanical behavior under diametral compression to showcase the effect of non-convex particle shape and interlocking on their compressive strength. Two different regimes are identified as a function of hexapod aspect ratio. In the first regime, where the hexapods are featured by their rough surface, the strength of the agglomerate is primarily controlled by cohesion at the contact level. In the second regime, where the hexapods are characterized by their long arms that can interlock, the tensile strength at the local level is scaled up by orders of magnitude to yield a high compressive strength at the scale of the agglomerate. We demonstrate that this amplifying effect of interlocking is enhanced by friction coefficient between hexapods, which hinders their disentanglement under the action of the external load.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 2","pages":"Article 104780"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A normal distribution-based approach to evaluate the effect of dispersion pressure on the minimum ignition temperature of dust clouds

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2024.104763

Gan-Syue Guo , Yu-Chi Cheng , Sheng-Wei Liao , Chi-Min Shu

{"title":"A normal distribution-based approach to evaluate the effect of dispersion pressure on the minimum ignition temperature of dust clouds","authors":"Gan-Syue Guo , Yu-Chi Cheng , Sheng-Wei Liao , Chi-Min Shu","doi":"10.1016/j.apt.2024.104763","DOIUrl":"10.1016/j.apt.2024.104763","url":null,"abstract":"<div><div>The minimum ignition temperature of dust clouds (<em>MITC</em>) represents a critical hazard parameter in preventing dust explosions. This study employed the Godbert-Greenwald furnace (G-G furnace) and high-speed camera to investigate the minimum ignition temperature of dust clouds <em>(MITC</em>) of lycopodium, corn starch, and Australian coal dust under various dispersion pressures. The distribution of dust mass falling from an unheated G-G furnace was analyzed using a normal distribution method to assess the influence of dispersion pressure on the ignition temperature of dust clouds. Furthermore, the dust’s flammable limit concentration <em>(FLC</em>) was calculated and compared with the minimum explosive concentration (<em>MEC</em>) of a 20-L apparatus. The findings reveal that as the dispersion pressure decreased, the <em>MITC</em> of lycopodium and corn starch increased by 220 and 80 °C, respectively. Conversely, no notable change was observed in the <em>MITC</em> of Australian coal dust. Compared to 0.05 barg, the flame propagation speeds of lycopodium, corn starch, and Australian coal dust exhibited a notable increase of 4.17, 2.95, and 2.11 m/s, respectively, at 0.5 barg of dispersion pressure. The discrepancies between the <em>FLC</em> and the <em>MEC</em> can be attributed to variations in the ignition sources and the presence of a dust disperser.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 2","pages":"Article 104763"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Powder engineering of MXene-based heterojunction materials for photocatalysis and gas sensor applications

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2025.104789

Vatra Reksa Ananda , Farah Nur Ramadhan , Azizah Mirza Kautsari , Tahta Amrillah , Angga Hermawan , Yoki Yulizar , Jarnuzi Gunlazuardi , Tohru Sekino , Shin-ichi Orimo , Shu Yin

{"title":"Powder engineering of MXene-based heterojunction materials for photocatalysis and gas sensor applications","authors":"Vatra Reksa Ananda , Farah Nur Ramadhan , Azizah Mirza Kautsari , Tahta Amrillah , Angga Hermawan , Yoki Yulizar , Jarnuzi Gunlazuardi , Tohru Sekino , Shin-ichi Orimo , Shu Yin","doi":"10.1016/j.apt.2025.104789","DOIUrl":"10.1016/j.apt.2025.104789","url":null,"abstract":"<div><div>MXene-based heterojunction materials have shown great promise in photocatalysis and sensing applications due to their unique structural and electronic properties. The synthesis of MXenes typically involves a top-down approach using MAX phase precursors, where the choice of etchants such as HF, LiF/HCl, or molten salts can significantly influence the surface termination, interlayer spacing, and defect density of the resulting MXenes. To further enhance the performance of MXenes, they are often combined with semiconductor materials to form heterojunction structures through various synthesis approaches, including self-assembly, ultrasonication, hydrothermal, and solvothermal methods. These heterostructures leverage the synergistic effects arising from the interface between MXenes and semiconductors, leading to improved charge separation, increased active sites, and enhanced adsorption capabilities, which are crucial for photocatalysis and sensing applications. The review highlights the critical role of powder engineering in the synthesis and performance optimization of MXene-based heterojunction materials, providing valuable insights for the continued advancement of these technologies.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 3","pages":"Article 104789"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143152801","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

CFD-DEM study on mixing and segregation characteristics for binary column-shape particles in a liquid–solid fluidized bed

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2025.104788

Lei Xie, Shuyan Wang, Baoli Shao, Xi Chen, Nuo Ding, Yimei Ma

{"title":"CFD-DEM study on mixing and segregation characteristics for binary column-shape particles in a liquid–solid fluidized bed","authors":"Lei Xie, Shuyan Wang, Baoli Shao, Xi Chen, Nuo Ding, Yimei Ma","doi":"10.1016/j.apt.2025.104788","DOIUrl":"10.1016/j.apt.2025.104788","url":null,"abstract":"<div><div>In this paper, the Computational Fluid Dynamics-Discrete Element Method (CFD-DEM) is applied to investigate the mixing and segregation of binary cylinders with different densities in a three-dimensional liquid–solid fluidized bed. The column-shape particles are constructed with a super-quadric model. The simulation results are in good agreement with the previous experimental data. The influences of aspect ratio and density ratio of binary particles on the mixing quality and final segregation extent are examined. Simulation results show that light particles are inclined to occupy at the top of the granular bed, whereas heavy ones concentrate in the bottom. As particle aspect ratio deviates from unity, i.e. disc-like or rod-like particles, the mixing index is increased and segregation degree is decreased. Particle translation is the main movement mode, however, disc- or rod-like particles are more easily to rotate and need more energy to be driven, comparing with approximately spherical particles. The force analysis in terms of the contact force and drag force indicates that particle shape influences collision probability, resulting in greater contact forces in terms of the disc-like and rod-like particles. Compared to disc-like and rod-like particles, approximately spherical particles experience the least drag force, thereby inhibiting mixing between binary particles. The particle orientation of disc-like and rod-like particles is inclined to the vertical direction in the fluidized state. Furthermore, particle dispersion coefficients are in the range of 10<sup>-3</sup> to 10<sup>-2</sup> m<sup>2</sup>/s, whose vertical direction is one order of magnitude greater than the horizontal directions. Smaller density ratios lead to larger particle dispersion coefficients.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 2","pages":"Article 104788"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel in-situ core shell structured Fe-ferrite soft magnetic composite powder processed by controlled oxidation

IF 4.2 2区工程技术

Advanced Powder Technology Pub Date : 2025-02-01 DOI: 10.1016/j.apt.2024.104779

Janapareddi Sravan Kumar , Deepak Kumar , Vajinder Singh , Joydip Joardar , Malobika Karanjai

{"title":"Novel in-situ core shell structured Fe-ferrite soft magnetic composite powder processed by controlled oxidation","authors":"Janapareddi Sravan Kumar , Deepak Kumar , Vajinder Singh , Joydip Joardar , Malobika Karanjai","doi":"10.1016/j.apt.2024.104779","DOIUrl":"10.1016/j.apt.2024.104779","url":null,"abstract":"<div><div>The present work focuses on a novel approach of forming core–shell soft composite powder of Fe-Fe<sub>3</sub>O<sub>4</sub> having ferrite as an electrically insulating layer around Fe-powder. The approach involves simple low-temperature in-situ oxidation-diffusion to obviate the interface delamination of core–shell structure while enabling % phase-control of ferromagnetic-core and ferrimagnetic-shell with time–temperature variation. Fe-powder was heated upto 400 °C-600 °C and subjected to oxidation for 5–15 min before cooling under inert atmosphere (N<sub>2</sub>). A thorough investigation of core–shell powders was done using Micro-XRD, FE-SEM, EBSD and Saturation magnetization (Ms) was measured using PPMS. The shell thickness increased with increasing temperature and oxidation time. Co-relation between phase percentages in the core–shell powder & Ms values were established. The process resulted in higher Ms values (209–136 emu/g) compared to those reported in the literature in such powders with average shell thickness ranging from 0.4 µm to 14.3 µm, retaining the characteristic soft magnetic property of Fe-Fe<sub>3</sub>O<sub>4</sub> composite powder.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 2","pages":"Article 104779"},"PeriodicalIF":4.2,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143131163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0