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颗粒学报(英文版)
颗粒学报(英文版)

郭慕孙

双月刊

1674-2001

jcsp@home.ipe.ac.cn

010-82629146

100080

北京中关村北二条1号中科院过程所内

颗粒学报(英文版)/Journal China ParticuologyCSCDCSTPCD北大核心EISCI
查看更多>>本刊以创精品与国际化为办刊方针,旨在反映中国颗粒学研究的最新成果、及时追踪国际颗粒学领域的最新动态。学报主要刊登国内外颗粒学领域中的研究、工程和应用方面的优秀原始论文,包括颗粒测试与表征、颗粒制备与处理、流态化、气溶胶和超微颗粒等。本刊不仅设有论坛、研究论文、研究简报等内容,还有书评、会议信息与报道、测试仪器进展等栏目,便于相关人士进行学术交流,并为科技成果的展示提供平台,信息十分丰富。本刊已陆续被美国化学文摘(CA),俄罗斯文摘杂志(AJ),剑桥科学文摘(CSA)以及中国科技论文与引文数据库(CSTPCD)收录。China PARTICUOLOGY, a bimonthly interdisciplinary journal in English, purports to present the best papers in research, engineering and application in the overall field of PARTICUOLOGY, including particle characterization, particle preparation, aerosol, fluidization and ultra-fine particles. The word PARTICUOLOGY was coined to correspond to its Chinese terminology, which denotes both the science and technology of particles. Although the journal is China-based, it serves as a medium for all accepted papers of international origin, especially the best papers representing current advances in the world. Besides scientific and engineering papers, the journal includes the following sections: R & D notes, Current events, Editorials reviews, Forum for comments, opinions and qualified speculations, News on books, instruments and meetings.Now, China Particuology has been indexed by CA, AJ , CSA and CSTPCD.??读者对象(Audiences): 中国颗粒学会会员、国内外从事颗粒学和颗粒技术研究和生产的大专院校师生、科研院所及企业的研究人员和技术人员。 Member of Chinese Society of Particuology, and researchers or experts who are engaged in the study of particle sciences and technology coming from colleges, institutes and corporations all over the world.
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    Rapid evaluating caking tendency of nonspherical crystals by developing a shape-based crystal bridge growth model

    Mingxuan LiMengdi ZhangWei ZhaoLeida Zhang...
    265-278页
    查看更多>>摘要:Crystal caking is a decisive factor affecting the quality of high-end fine chemicals,whereas lack of shape-to-caking understanding results in considerable waste of time,severely delaying high-end fine chemical development.On this basis,a morphology-based caking evaluation model is developed with 74%and 96%time savings compared to previous modeling and non-modeling experiments,respectively,while guaranteeing superior accuracy.The crystal morphology is expressed as a function of the aspect ratio and the particle size distribution.The quantitative relationships between these parameters and the caking tendency are deduced,firstly achieving morphology anti-caking criterion establishment.For D-allulose crystals,considering humidity,and particle size,an aspect ratio is below 3 is the standard for combating caking,which has not been reported previously.Herein,the specific effect of crystal morphology on caking behavior is quantitatively described.The knowledge obtained can be applied to rapidly and quantitatively design anti-caking storage systems for products in warehouses.

    Synergistic impact mechanism of particle size and morphology in superalloy powders for additive manufacturing

    Lichong ZhangLiang ZhengWenyong XuNa Liu...
    279-302页
    查看更多>>摘要:The particle size and morphology of superalloy powders are crucial parameters that significantly in-fluence the performance of additive manufacturing(AM)processes.This study investigates the effects of atomization pressure on these characteristics through a combination of computational fluid dynamics(CFD)simulations and vacuum induction melting gas atomization(VIGA)experiments.The CFD simu-lations revealed that increasing the atomization pressure from 2.0 MPa to 3.5 MPa resulted in a rise in maximum gas velocity from 526 m/s to 537 m/s and a reduction in median particle size(D50)from 60.9 μm to 37.5 μm.Subsequent experiments demonstrated a decrease in D50 from 52.9 μm to 35.6 μm,and sphericity from 0.9432 to 0.9377,as pressure increased.The particle size results of the atomization experiments and numerical simulations show strong consistency,validating the accuracy of the nu-merical simulation results.The volume of hollow particles also increased slightly in specific size fractions.These results suggest that higher atomization pressures produce finer powders with lower sphericity,but also promote particle adhesion,reducing the overall refinement effect.This study provides insights into optimizing atomization conditions for the precise control of superalloy powders in AM.

    Supplying active lithium to single-crystal Li(Ni0.90Co0.05Mn0.05)0.98Ta0.02O2 with Li2MnO3 coating served as cathode for Li-ion batteries

    Li DongXiaodong GuanYang ZhouShibao Tang...
    303-318页
    查看更多>>摘要:Ni-rich layered oxide with Ni molar content larger than 90%was regarded as an extremely promising candidate for cathode material applied in lithium-ion batteries owing to the significant discharging capacity and low cost.Nevertheless,rigorous cycling attenuation resulted from the crystal structure collapse and unstable particles interface deeply restrained the commercial application.In the work,LiNi0.90Co0.05Mn0.05O2 was modified by Ta5+doping and Li2MnO3 covering,which was aimed to enhance the structure stability,defend the electrolyte attacking and promote Li+migration during cycling.The material characterization demonstrated the cathodes after Ta5+doping delivered the larger cell lattice parameters and higher cation ordering,which was helpful to improve the rate property and discharge capacity at low temperature.The Li2MnO3 layer was tightly adhered on the outside of LiNi0.90-Co0.05Mn0.05O2,which could effectively relieve the electrolyte attacking and sustain the particle morphology integrity.As a result,2 wt%Li2MnO3 coated Li(Ni0.90Co0.05Mn0.05)0.98Ta0.02O2 exhibited the outstanding discharge capacity of 150.2 mAh g-1 at 10.0 large current density and 140.6 mAh g-1 at-30℃ as well as the remarkable capacity retention of 93.1%after 300 cycles.Meanwhile,the pouch full batteries obtained by 2 wt%Li2MnO3 coated Li(Ni0.90Co0.05Mn0.05)0.98Ta0.02O2 also showed the more stable storage capability,cyclic property in comparison with bare LiNi0.90Co0.05Mn0.05O2.

    A comprehensive numerical investigation of the spray characteristics in spill-return atomizers using coupled VOF and Euler-Lagrange approach

    Wassim HariziFathi HamdiMouldi Chrigui
    319-332页
    查看更多>>摘要:This research paper investigates a three-dimensional,two-phase flow dynamics,and atomization characteristics of a spill return atomizer.The method includes the internal flow field,primary and sec-ondary atomization which are modeled using the hybrid approach Volume of Fluid to Discrete Phase Model(VOF to DPM).A comparison between the Large Eddy Simulation(LES)and The k-omega Shear Stress Transport turbulence model(SST κ-ω)in combination with the Volume of Fluid(VOF)model,along with the Adaptive Mesh Refinement(AMR)method,to predict the breakup of the liquid core is carried out.The investigation presents axial and tangential distributions of velocity,mean diameter,and spray cone angle of droplets at spray pressures of Spill-to-Feed Ratio(SFR)equal to 0.9.The numerical results are validated against the Phase-Doppler Anemometry(PDA)experiment.A relative error,of less than 7.3%,is recorded.The study systematically explores the spatiotemporal evolution of the flow field,including the liquid surface wave motion,liquid film characteristics,and the formation/atomization of the fluid spray cone downstream of the injector.

    Preparation of excellent building materials using geopolymer instead of traditional cement

    Yuanchuan RenShanqisong HuangYan HuNanqi Ren...
    333-342页
    查看更多>>摘要:In order to improve the resource utilization rate of aluminum ash,high-quality building materials were prepared by replacing traditional cement with aluminum ash,and the performance of building materials under different conditions and factors was studied.The experimental results show that when the pressure was 300 MPa and the natural curing time was 3 days,the comprehensive performance of the brick reaches its optimum(compressive strength of 60 MPa,flexural strength of 1.3 MPa,and softening coefficient of about 0.9),far superior to other reported methods for preparing building materials.SEM-EDS,Particle size analysis and XRD confirmed that the crystal structure in aluminum ash undergoes a transformation under high-intensity mechanical pressure,forming cement-based active substances.This study not only obtained a new method for preparing building materials,but also further promoted the research on the resource utilization of aluminum ash,providing a new approach for the treatment and disposal of hazardous waste.

    Experimental and numerical study of maximum efficiency vortex finder insertion depth of a Stairmand cyclone

    Shiwei YuanGuogang SunLiangce XiaoJianchen Sun...
    343-355页
    查看更多>>摘要:The vortex finder is essential in cyclone separators,significantly affecting separation performance via its diameter and insertion depth.The current study shows that as the insertion depth of the vortex finder increases,the separation efficiency initially increases and then decreases,and there exists a maximum point with which the corresponding insertion depth is the maximum efficiency insertion depth(SMEID).However,there are inconsistent conclusions in the existing literature regarding the maximum efficiency insertion depth and a lack of explanation for the flow field mechanism at the maximum efficiency insertion depth.This study examines the Stairmand type cyclone using 13 μm silicon micro-powder,employing numerical simulation and cold mold experiments to explore the effects of the vortex finder's insertion depth and diameter on separation performance and flow field.The results indicate that the insertion depth has minimal impact on pressure drop.The maximum efficiency insertion depth of the vortex finder decreases as the diameter decreases and is independent of this insertion depth with respect to the inlet velocity.Analysis of the flow field reveals that the maximum efficiency insertion depth is essentially the result of a"competitive and synergistic"mechanism between the annular space sepa-ration capability and the separation space separation capability.

    Study of hydraulic transport characteristics and erosion wear of twisted four-lobed pipe based on CFD-DEM

    Chunya SunZhifang XuYanqiu XiaoGuangzhen Cui...
    356-369页
    查看更多>>摘要:Pipeline hydraulic transportation is extensively utilized across diverse sectors,with enhancing the per-formance of pipeline hydrodynamic transport and minimizing erosion wear on the pipeline walls being essential for ensuring the stability of pipeline operations.This paper introduces a methodology for the hydraulic transport of a twisted four-lobed pipe,employing a numerical and erosion model developed through the CFD-DEM(computational fluid dynamics and discrete element method)coupling approach.An experimental circulating flow platform is constructed for validation purposes.The performance of the pipe is assessed by analyzing key indices including fluid velocity,pressure drop,particle trajectory,and erosion wear.The results indicate that twisted four-lobed pipe enhances fluid flow rates,facilitating particle discharge and mitigating accumulation,with reduced wear compared to the twin twist triangle spiral pipe.The analysis of structural parameters'impact on hydraulic conveyance is also presented.These findings offer theoretical insights for optimizing pipeline performance in hydraulic conveyance while minimizing wear.

    A review on the hydraulic performance and erosion wear characteristic of the centrifugal slurry pump

    Aoqiang DuanZhe LinDesheng ChenYi Li...
    370-392页
    查看更多>>摘要:The centrifugal slurry pump is widely applied for the transportation of liquid medium containing solid particles.The introduction of solid particles will lead to a decrease in efficiency and wear of the slurry pump.To solve this problem,it is imperative to review the hydraulic performance and erosion charac-teristic of slurry pumps under solid-liquid two-phase flow in recent years.In this review,firstly,the general structure and engineering application are introduced.Next,the experimental and simulation research methods of particle movement and erosion wear are explored.Then,the influence of solid particles on the hydraulic performance and particle distribution is analyzed.Afterwards,the variation laws of erosion wear under different flow-passing components and particle properties are clarified.Finally,according to the current research status and conclusions,the design optimization measures and future investigate direction are proposed,aiming to promote the resolution of wear damage and extend the service life of the slurry pump.