Advanced Powder Technology最新文献

{"title":"Modulation of demagnetization field and DC bias performance of carbonyl iron molded inductors by mixing submicron FeSi particles","authors":"Yong Zhang ,&nbsp;Junzhou Wang ,&nbsp;Xinyan Huang ,&nbsp;Sizhe He ,&nbsp;Panjie Shao ,&nbsp;Aimin Wu ,&nbsp;Xuefeng Zhang ,&nbsp;Zhaohui Yang ,&nbsp;Zhongli Jiang ,&nbsp;Dongmei Feng ,&nbsp;Hao Huang","doi":"10.1016/j.apt.2025.104939","DOIUrl":"10.1016/j.apt.2025.104939","url":null,"abstract":"<div><div>In the modern era of advanced electronic equipment, the capacity of electronic components to function effectively in high-current environments, i.e. DC bias performance, has become a subject of increasing interest. The use of magnetic powder composite technology has been shown to enhance the DC bias performance of electronic components. In this paper, the submicron spherical FeSi powders, which were prepared by DC arc plasma method, mixed with micron-sized carbonyl iron powders (CIPs) to prepare CIP/FeSi soft magnetic composites (SMCs) and molded inductors. It is shown that the mixing of FeSi powders inevitably reduces the permeability of the SMCs, but provides modulatable DC bias performance. The study found that the SMCs’ magnetic permeability was 32.46, which is a 8.7% decrease. The saturation current was 2.86 A, which is a 28.8% increase, and the DC bias performance was significantly improved. In this paper, the mechanism of the mixed FeSi magnetic powder to improve the DC bias performance of SMCs is elucidated by combining the periodic modeling of mixed magnetic powders and the analysis of FeSi powder structure and properties. This study provides a theoretical basis for the composition and structure design of soft magnetic composites, and the prepared SMCs can be used in high-current operating environments, which have a good application prospect.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104939"},"PeriodicalIF":4.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123379","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}

{"title":"Silica-coated NiPt core-shell nanoparticles stable to Ni Oxidation and aggregation","authors":"Masato Yanase ,&nbsp;Yoshiki Ueno ,&nbsp;Noriko Yamauchi ,&nbsp;Shohei Tada ,&nbsp;Daisuke Nagao ,&nbsp;Yoshio Kobayashi","doi":"10.1016/j.apt.2025.104934","DOIUrl":"10.1016/j.apt.2025.104934","url":null,"abstract":"<div><div>Magnetic particles with a size of dozens of nanometers or less have excellent operability under external magnetic fields and are required to be chemically stable and resistant to aggregation. Owing to their excellent properties, magnetic fine particles have applications in medical imaging, hyperthermia treatment, solid-phase extraction, and recording media. However, pure metal nanoparticles aggregate or oxidize, necessitating the development of a simple method to suppress these phenomena. In this study, NiPt and SiO₂-coated NiPt (NiPt/SiO₂) nanoparticles were fabricated and characterized. Metallic Ni nanoparticles were synthesized in water exposed to air using Ni(II) acetate tetrahydrate, hexachloroplatinate(IV) hexahydrate, hydrazine, and poly(sodium 4-styrenesulfonate) as the Ni and Pt sources, reducing reagent, and stabilizer, respectively. The simultaneous reduction of Ni and Pt cations afforded NiPt nanoparticles. The NiPt nanoparticles (9.7 ± 3.3 nm) were significantly smaller than the Ni particles synthesized using hydrazine as a reducing reagent (∼300–600 nm). The Pt nuclei were generated faster than the Ni nuclei because of the difference in their standard electrode potentials. The NiPt/SiO₂ nanoparticles were synthesized by adding a tetraethylorthosilicate/(3-aminopropyl)triethoxysilane/ethanol solution to the NiPt nanoparticle colloidal solution. They did not aggregate during 24 h of the silica-coating process, whereas the uncoated NiPt nanoparticles were ionized and significantly aggregated over the reaction time of 24 h. The saturation magnetization values of the uncoated NiPt and NiPt/SiO₂ nanoparticles were 28.0 and 56.9 emu/g-Ni, respectively, which indicated that the silica coating prevented particle aggregation and controlled Ni oxidation on the surface of the metallic NiPt nanoparticles during the synthesis process. The present work contributes to the advancement of methods for synthesizing colloidally stable metal nanoparticles and synthesis environments.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104934"},"PeriodicalIF":4.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123381","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}

{"title":"Ambient pressure drying preparation of kaolin-reinforced cellulose sponges with low thermal conductivity","authors":"Aixin She ,&nbsp;Xin Zhang ,&nbsp;Zhong Huang ,&nbsp;Liang Huang ,&nbsp;Jianghao Liu ,&nbsp;Shaowei Zhang ,&nbsp;Haijun Zhang","doi":"10.1016/j.apt.2025.104933","DOIUrl":"10.1016/j.apt.2025.104933","url":null,"abstract":"<div><div>Cellulose sponges are widely used in the fields of thermal insulation, adsorption and catalysis owing to their low density, high porosity and low thermal conductivity. However, they suffer from complex preparation process and poor mechanical property. In response to this, an ambient pressure drying route was investigated to prepare the mineral-reinforced cellulose sponges using bagasse and minerals as main raw materials. Thanks to the cross-linking reactions among cellulose, mineral, glutaraldehyde and chitosan, a more stable three-dimensional network structure was formed, enhancing the mechanical property of sponge. The kaolin-reinforced cellulose sponges exhibited a bulk density of 70.10 mg/cm³, a porosity of 99.20 %, a compressive strength of 231.20 kPa at 50 % strain, and a thermal conductivity of 43.50 mW/(m·K). The present cellulose sponge prepared by ambient pressure drying, with its easy operation and low cost, low thermal conductivity and acceptable mechanical strength, can be potentially be used as thermal insulation materials in buildings.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104933"},"PeriodicalIF":4.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123377","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}

{"title":"Novel entrance and exit designs towards fully developed dual Vortexes in cyclone separators","authors":"C.M. Wang ,&nbsp;T.F. Wang ,&nbsp;K. Fukui ,&nbsp;T. Fukasawa ,&nbsp;W.Y. Hsu ,&nbsp;A.N. Huang ,&nbsp;H.P. Kuo","doi":"10.1016/j.apt.2025.104937","DOIUrl":"10.1016/j.apt.2025.104937","url":null,"abstract":"<div><div>Stairmand-type cyclones are commonly used in industry to separate particles from gas streams by inertia, driven by the dual-vortex flow patterns. Here, new designs are proposed to eliminate the local non-ideal vortex patterns in a conventional Stairmand cyclone by inserting a flow divider at the entrance and adjusting the elbow exit orientation. A two-way coupled CFD–DPM approach is employed to analyze the performance of the modified cyclones. Simulation results show that the cyclone with the elbow exit oriented orthogonal to the entrance direction demonstrates better performance in terms of the cut size and sharpness. The installation of the flow divider reduces the vortex eccentricity by approximately 50%. The flow divider increases the gas velocity near the outer wall, allowing the quasi-free vortex in the cyclone’s outer region to become nearly fully developed at the entrance section through the reduction of the local secondary recirculation flows. The optimum flow divider outer wall thickness correlates to the wall shear stress distribution. With the optimum 2 mm outer wall thickness flow divider installed, the separation efficiency for 2 μm particles increases from 56.74% to 77.4%, and the cut size decreases from 1.87 μm to 1.23 μm.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104937"},"PeriodicalIF":4.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123380","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}

{"title":"A three-layer digital twin architecture for granular bed profile prediction in rotary kiln","authors":"Zhiming Han ,&nbsp;Weichao Luo ,&nbsp;Cong Liu ,&nbsp;Xiaojun Liang ,&nbsp;Xiaohao Wang ,&nbsp;Chunhua Yang ,&nbsp;Weihua Gui ,&nbsp;Min Zhang","doi":"10.1016/j.apt.2025.104930","DOIUrl":"10.1016/j.apt.2025.104930","url":null,"abstract":"<div><div>Granular bed profile in rotary kilns plays a critical role in determining heat transfer, gas distribution, and material residence time. However, due to enclosed high-temperature and rotating conditions, accurately and rapidly predicting the bed profile remains a significant challenge. To overcome this, this paper proposes a three-layer digital twin (DT) architecture for predicting the bed profile in rotary kiln. The first layer is the modeling layer, which integrates mathematical mechanism models of material motion into a simulation core to generate simulation data of kiln processing. The second layer is the data layer, where material outlet height data is collected and used to iteratively update simulation results, improving prediction accuracy. The third layer is the interaction layer, where a virtual terminal is designed to retrieve and visually present the results. A small-scale rotary kiln test platform is applied to validate proposed DT. Results indicate that the proposed DT architecture can effectively predict granular bed profile in both steady or dynamic states within a very short time. This study provides a potential solution for modeling and predicting granular flow in rotary kilns and shows promise for broader engineering applications with further optimization.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104930"},"PeriodicalIF":4.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144123378","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}

{"title":"Modelling the electrical conductivity of Lithium-ion battery electrodes via a bonded-particle approach","authors":"Clara Sangrós Giménez,&nbsp;Astrid Pistoor,&nbsp;Caroline Willuhn,&nbsp;Carsten Schilde,&nbsp;Arno Kwade","doi":"10.1016/j.apt.2025.104931","DOIUrl":"10.1016/j.apt.2025.104931","url":null,"abstract":"<div><div>An electrode’s electrical conductivity greatly affects battery performance, justifying the need to fully understand the relation between particle microstructure and resulting electrical conductivity. This work proposes a model to assess the specific electrical conductivity of DEM electrode structures by analysing a network of conductive paths.</div><div>NMC622- and NCA-based cathode structures, with a bond network representing the additive-binder matrix, are created and calendered numerically before being evaluated for electronic conductivity. The direct and bond contacts and, unprecedentedly, the internal particle resistances are taken into account to build a resistor network. The results obtained by this model are in great agreement with experimental electrical conductivities for NMC622- and NCA-based cathodes. Both the experimental cathodes and the developed conductivity model show an initial increase and later decrease of electrical conductivity as a function of calendering load, which is explained by a loss in particle bonds. Variations in the active material size distribution lead to the same changes in the electronic conductivity of experimental and simulated cathodes. This is attributed to the coordination number of the active material particles and the different types of particle contacts.</div><div>To conclude, this model allows for a DEM simulation-independent, accurate evaluation of the electrical conductivity of any discrete particulate structure.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104931"},"PeriodicalIF":4.2,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107945","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}

{"title":"Mechanochemical synthesis of telmisartan-based co-amorphous solid dispersions with enhanced solubility and unexpected cytotoxic synergy on normal cell lines","authors":"Marika Turek ,&nbsp;Katarzyna Gach-Janczak ,&nbsp;Ewa Różycka-Sokołowska ,&nbsp;Krzysztof Owsianik ,&nbsp;Piotr Bałczewski","doi":"10.1016/j.apt.2025.104936","DOIUrl":"10.1016/j.apt.2025.104936","url":null,"abstract":"<div><div>Telmisartan (TEL), an angiotensin II receptor blocker (ARB), has poor bioavailability due to its low solubility. To improve dissolution profile and potential therapeutic efficacy of this drug, six TEL-based co-amorphous solid dispersions (SDs) were synthesized using mechanochemical neat grinding with various active pharmaceutical ingredients (APIs): hydrochlorothiazide (HCT), amlodipine (AMLO), amlodipine besylate (AMLO-Bes), and rosuvastatin sodium (ROS-Na). The resulting binary and ternary SDs were characterized using X-ray powder diffraction (XRPD), Fourier-transform infrared spectroscopy (FT-IR), and differential scanning calorimetry (DSC). Stability tests confirmed that most SDs were stable for at least 12 months, except for the TEL/HCT system, which recrystallized after two months. Dissolution studies revealed 4–5 fold improvement in TEL release from co-amorphous SDs, especially in formulations with excipients. Cytotoxic activity was evaluated against cancerous (HepG2, MCF-7, HL-60) and normal (HUVEC and MCF-10A) cell lines. The studies revealed a clear synergistic cytotoxic effect of the TEL and ROS-Na combination, which is even more marked on normal cells.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104936"},"PeriodicalIF":4.2,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099483","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}

{"title":"Hierarchical model acquisition and parameter calibration of the corncob based on the discrete element method","authors":"Dandan Han ,&nbsp;Chao Tang ,&nbsp;Bo Liu ,&nbsp;Wei Li ,&nbsp;Yunxia Wang ,&nbsp;Lijia Xu","doi":"10.1016/j.apt.2025.104932","DOIUrl":"10.1016/j.apt.2025.104932","url":null,"abstract":"<div><div>To establish the optimal model and bonding parameters that align with the structural features of corncobs during harvest, a breakable discrete element model was developed, reflecting its two-layer structural composition (core marrow and xylem annulus) through a hierarchical modeling approach. Compression and bending tests were conducted to quantify the biomechanical parameters of each corncob component, which were subsequently utilized for model parameter calibration. The bonding parameters among core marrow-core marrow, xylem annulus-xylem annulus, and core marrow-xylem annulus were calibrated based on the results from compression tests, employing the Plackett-Burman, steepest ascent, and Box-Behnken calibration methodologies. Ultimately, the bending destructive force of the entire corncob and its mechanical bending properties served as evaluation metrics to thoroughly validate the overall characteristic parameters of the corncob. Furthermore, by analyzing the morphological alterations of the corncob during both actual and simulated compression and bending, the findings indicate that the hierarchical DEM model developed in this study, along with the calibrated bonding parameters, demonstrates high accuracy in simulating the crushing behavior of real corncobs. The hierarchical bonded particle model presented herein lays the groundwork for future research aimed at constructing a high-fidelity corn ear model capable of characterizing kernel separation and the breakability of corncobs.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104932"},"PeriodicalIF":4.2,"publicationDate":"2025-05-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144099482","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}

{"title":"Box Behnken design-based optimized green synthesis of lanthanum oxide submicroparticles using Quercus Infectoria galls extract and their antimicrobial activities","authors":"Hira Rasheed ,&nbsp;Faiza Imtiaz ,&nbsp;Abid Ali ,&nbsp;Arfaa Sajid ,&nbsp;Qaisar Manzoor ,&nbsp;Umer Younas ,&nbsp;Habib Elhouichet ,&nbsp;Amirah S. Alahmari ,&nbsp;Munawar Iqbal ,&nbsp;Arif Nazir","doi":"10.1016/j.apt.2025.104929","DOIUrl":"10.1016/j.apt.2025.104929","url":null,"abstract":"<div><div>This study focuses on the green synthesis of lanthanum oxide submicroparticles (LO-SMPs) using the galls extract of <em>Quercus Infectoria</em>. Response surface methodology (RSM) based optimization using Box-Behnken design (BBD) was performed and a linear model was found to be best fitted and was used to evaluate the influence of time, the concentration of salt and volume of the extract on the synthesis of LO-SMPs. The optimized conditions for the synthesis were found to be 80 min, 2 mM and 12 mL with the absorbance of 1.74. ANOVA analysis reveals significant results based on their <em>p</em>-value. Synthesized LO-SMPs were characterized using various techniques such as UV–Vis, FTIR, SEM, EDX, XRD and DLS analysis. The morphology of LO-SMPs was analyzed using SEM and was found to be poly-dispersed spherical clusters. The body-centered cubic structure of LO-SMPs was confirmed by XRD. Furthermore, the nanoparticles inhibited three pathogenic microorganisms (S<em>. aureus, E. coli,</em> and P<em>. multocida</em>) and the inhibition potential of LO-SMPs showed enhanced activities compared to the plant extract. It was observed that high concentrations of LO-SMPs (30 mg/mL) showed a larger zone of inhibition against <em>E. coli</em> and <em>P. multocida</em> at 32 mm and 28 mm, respectively. The findings revealed that LO-SMPs have promising antibacterial activity, which might have potential as therapeutic agents, which need further investigation on the cytotoxicity and biocompatibility studies on cell lines.</div></div>","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 7","pages":"Article 104929"},"PeriodicalIF":4.2,"publicationDate":"2025-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089202","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}

{"title":"Full title (Editorial Board Members)","authors":"","doi":"10.1016/S0921-8831(25)00142-6","DOIUrl":"10.1016/S0921-8831(25)00142-6","url":null,"abstract":"","PeriodicalId":7232,"journal":{"name":"Advanced Powder Technology","volume":"36 6","pages":"Article 104921"},"PeriodicalIF":4.2,"publicationDate":"2025-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070618","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}