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Journal articles on the topic 'Laser particle size analyser'

Author: Grafiati

Published: 2 June 2025

Last updated: 31 July 2025

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1

Deng, Youjun, and M. G. Tenorio Arvide. "Automation of size fractionation to extract clays and silts." Clay Minerals 46, no. 3 (2011): 515–23. http://dx.doi.org/10.1180/claymin.2011.046.3.515.

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AbstractThe objective of this study was to build an automated size fractionator to process up to 16 samples at one time. Most parts used in the apparatus are inexpensive items, available from lawn irrigation, household appliance and aquatic pet supply stores. The device can be used to extract different silt and clay fractions by changing sedimentation time. A bentonite, a kaolin and an ironoxide-rich Oxisol were fractionated by this instrument to sequentially extract particles that have sizes equivalent to <2 µm, <5 µm, <10 µm and <20 µm quartz spheres. A laser diffraction particle

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2

Krishnappan, B. G., J. Marsalek, W. E. Watt, and B. C. Anderson. "Seasonal size distributions of suspended solids in a stormwater management pond." Water Science and Technology 39, no. 2 (1999): 127–34. http://dx.doi.org/10.2166/wst.1999.0103.

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Three seasonal surveys of suspended solids were carried out in an on-stream stormwater management pond, by means of a submersible laser particle size analyser. Size distributions were measured at up to 17 points in the pond, and water samples collected at the same locations were analysed for primary particles aggregated in flocs. Observed suspended solids were mostly composed of flocs, with maximum sizes ranging from 30 to 212 μm for winter and summer surveys, respectively. Using a relationship defining the floc density as a function of floc size and Stokes' equation for settling, an empirical

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3

Zhang, Shuang Yu, Fu Yan Lv, Zheng Meng Xia, Na Li, and Miao Wu. "The Feasibility Study of Laser Particle Size Analyzer for Thick Pastes." Applied Mechanics and Materials 372 (August 2013): 428–32. http://dx.doi.org/10.4028/www.scientific.net/amm.372.428.

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The particle size distribution determines the physical and chemical characteristics of the particle swarm, and then affects rheological properties and transportation resistance characteristics of the thick pastes . Therefore we should find a method to appropriately describe the particle size distribution of thick pastes. Take coal slime to represent, we contrast laser particle size analyzer test with traditional sieving test to find whether the laser particle size analyzer applies to thick pastes or not. The test shows that the laser particle size analyzer which is suitable for the thick paste

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Manab, Abdul, Hari Purnomo, Simon Widjanarko, Lilik Radiati, and Imam Thohari. "Physichochemical Properties of Kefir Drink Using Modified Porang Flour (Amorphophallus oncophyllus) During Storage Period." Current Research in Nutrition and Food Science Journal 5, no. 3 (2017): 288–99. http://dx.doi.org/10.12944/crnfsj.5.3.14.

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The purpose of this research was to compare physicochemical characteristics of goat milk kefir drink produced by using porang flour and modified porang flourthroughout 21 days storage period. Goat milk kefir drink weretaken at 1, 7, 15 and 21 day of storageperiod, analysed for microstructure, particle size and ethanol content. Analyses of microstructure using confocal laser scaning microscopy (CLSM), particle size using particle size analyser,ethanol content usinggas chromatography (GC).There were significant differencesconsidering the microstructure, particle size and ethanol content of goat

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Cieślik, Ewelina, Piotr Kowalczyk, and Justyna Czupioł. "IMPACT OF SAMPLE QUANTITY AND ABSORBANCE LEVEL ON PARTICLE SIZE ANALYSIS BY LASER DIFFRACTION RESULTS." Zeszyty Naukowe SGSP 1, no. 93 (2025): 131–43. https://doi.org/10.5604/01.3001.0055.0614.

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This study aimed to investigate the impact of sample quantity and absorbance levels on the repeatability of results and to evaluate the suitability of the method for exhaust gases with low dust concentrations. In the research use was made of the ANALYSETTE 22 NanoTec laser particle size analyser with wet dispersion. Water was used as the dispersing agent. The study utilised Fritsch Standard F500 reference dust, with a particle size range of 0.5–50 m, and two dust samples collected from industrial installations. Variations in the results were observed depending on the sample mass introduced int

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Záleská, Martina, Milena Pavlíková, and Zbyšek Pavlík. "Classification of a-SiO₂ Rich Materials." Materials Science Forum 824 (July 2015): 33–38. http://dx.doi.org/10.4028/www.scientific.net/msf.824.33.

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The powder materials containing active SiO2, which are used as pozzolanic active materials in cement mixtures, can be classified in consideration of their pozzolana activity, particle size or reactivity. In this paper, several types of metakaoline are studied using Frattini and modified Chapelle test for pozzolanic activity determination. The particle size analysis is measured using the laser diffraction analyser and the differences in the chemical composition are characterized by FTIR spectroscopy. The obtained data show influence of particle size and chemical composition of tested powders on

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7

Marinca, Traian Florin, Ionel Chicinaş, Virgiliu Călin Prică, Florin Popa, and Bogdan Viorel Neamţu. "Zinc Ferrite Powder Synthesized by High Energy Reactive Ball Milling." Materials Science Forum 672 (January 2011): 149–52. http://dx.doi.org/10.4028/www.scientific.net/msf.672.149.

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The nanocrystalline zinc ferrite (ZnFe2O4) powder was synthesized by high energy reactive ball milling (RM) in a planetary mill. As starting materials a mixture of commercial zinc oxide (ZnO) powder and iron oxide (Fe2O3) powder was used. The starting mixture was milled for different periods of time, up to 30 h. The milled powders were annealed for 4 h at 350 oC in order to eliminate the internal stress and to finish the solid state reaction of ferrite formation. Zinc ferrite formation was investigated by X-ray diffraction. The obtained powder has a mean crystallite size of 12 nm after 20 h of

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Yang, Fen Rong, Kai Qi Liu, Bing Jun Wang, and Xiao Hu Xie. "Measurement and Characterization of the Particle Size of Refractory Corundum." Key Engineering Materials 544 (March 2013): 135–38. http://dx.doi.org/10.4028/www.scientific.net/kem.544.135.

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With introducing briefly the refractory powder materials, the article analyzed the morphology and particle size distribution of commercial different size fraction corundum powder by scanning electron microscopy and laser particle size analyzer. The results showed that most of corundum powder particles were angular spherical, Their particle volume average diameters D(4,3) are greater than median grain sizes D50, and with the difference increasing the distribution curve symmetry becomes worse. Moreover, size frequency distribution curve presents slanting unimodal or bimodal pattern, not complete

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9

Sedláčková, Kateřina, and Lenka Ševelová. "Comparison of laser diffraction method and hydrometer method for soil particle size distribution analysis." Acta Horticulturae et Regiotecturae 24, no. 1 (2021): 49–55. http://dx.doi.org/10.2478/ahr-2021-0023.

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Abstract The article aims to present a comparative study of two methods used to determine the particle size distribution of fine and medium coarse soils. These methods are used to determine the grain size distribution curve in practice; however, for different purposes. The classical sedimentation method, based on the Stoke’s sedimentation law (hydrometer, areometric, the Casagrande’s method), standardized for a geotechnical classification of soils was compared with the laser diffraction method on the Mastersizer 3,000 analyser used for soil science purposes. The first comparison on nine sample

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10

Gresina, Fruzsina. "Comparison of pipette method and state of the art analytical techniques to determine granulometric properties of sediments and soils." Hungarian Geographical Bulletin 69, no. 1 (2020): 27–39. http://dx.doi.org/10.15201/hungeobull.69.1.3.

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The determination of particle size distribution is a crucial issue in various fields of earth sciences (e.g., Quaternary research, sedimentology, stratigraphy, structural geology, volcanology), environmental sciences as well as diverse industrial applications (e.g., pharmaceuticals, cement industry). New measurement techniques developed as a result of industrial demands have also gained ground in environmental and Earth sciences research. The new techniques (especially laser diffraction) have enabled the particle characterisation in the broader size-range with a more detailed resolution. Still

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Liu, Qiaochu, Fuchang Peng, and Li Wang. "Preparation of [BMIM]HSO₄@SiO₂ Ionic Liquid Microcapsules and Application to CO₂ Adsorption." Journal of Physics: Conference Series 2679, no. 1 (2024): 012020. http://dx.doi.org/10.1088/1742-6596/2679/1/012020.

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Abstract Carbon emissions are closely related to global climate change and have gradually become a focus of attention. Carbon capture is an effective way to reduce carbon emissions, ionic liquid microcapsules (ILM) have great potential as a CO2 capture material. [BMIM]HSO4@SiO2 ionic liquid microcapsules were prepared by in situ polymerization, and the microcapsule samples were characterized using thermo-gravimetric analysis & differential scanning calorimetry (TG/DSC), scanning electron microscopy (SEM), laser particle size analysis and surface area analyser. The microcapsules on the CO2

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12

Gysel, M., M. Laborde, J. C. Corbin, et al. "Technical Note: The single particle soot photometer fails to detect PALAS soot nanoparticles." Atmospheric Measurement Techniques Discussions 5, no. 4 (2012): 4905–25. http://dx.doi.org/10.5194/amtd-5-4905-2012.

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Abstract. The single particle soot photometer (SP2) uses laser-induced incandescence (LII) for the measurement of atmospheric black carbon (BC) particles. The BC mass concentration is obtained by combining quantitative detection of BC mass in single particles with a counting efficiency of 100% above its lower detection limit (LDL). It is commonly accepted that a particle must contain at least several tenths of femtograms BC in order to be detected by the SP2. Here we show the unexpected result that BC particles from a PALAS spark discharge soot generator remain undetected by the SP2, even if t

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13

Hu Hua, 胡华, 张福根 Zhang Fugen, 吕且妮 Lü Qieni, and 潘林超 Pan Linchao. "Measurement Upper Limit of Laser Particle Size Analyzer." Acta Optica Sinica 38, no. 4 (2018): 0429001. http://dx.doi.org/10.3788/aos201838.0429001.

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T. M. Zobeck. "RAPID SOIL PARTICLE SIZE ANALYSES USING LASER DIFFRACTION." Applied Engineering in Agriculture 20, no. 5 (2004): 633–39. http://dx.doi.org/10.13031/2013.17466.

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15

Velez, M., Y. He, D. E. Day, et al. "Processing of yttrium aluminosilicate (YAS) glasses for dental composites." Cerâmica 57, no. 341 (2011): 1–9. http://dx.doi.org/10.1590/s0366-69132011000100001.

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Two series of silicate glasses were processed to micron-size, sub-micron size, and nanoparticles using three different milling systems: ball milling, attrition, and high-energy milling. The effect of milling time and media size on particle size and contamination were investigated in aqueous and isopropanol suspensions. The particle size was determined using a laser-diffraction particle size analyzer and scanning electron microscopy. The smallest glass particles with a median particle size of 0.3 µm were achieved by a two-step comminution process in a high energy mill.

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16

Liang, Bing, Chang Jian Gao, and Jiao Lv. "Study on the Synthesis of Micron-Sized Magnesium Hydroxide Flame Retardant by Using a Gaseous Ammonia Bubbling Method." Advanced Materials Research 821-822 (September 2013): 1341–45. http://dx.doi.org/10.4028/www.scientific.net/amr.821-822.1341.

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Micron-sized Mg (OH)2 particles were synthesized by precipitation of MgSO4 with gaseous ammonia. An experimental design procedure was used to investigate the effects of the concentration of MgSO4, temperature of the reaction, time of the reaction, assembly time, speed of stirring, ultraphonic, the introduce of NaOH and surfactant on the mean particle size and the particle size distribution. Laser particle size analyzer, XRD, TG-DTG, SEM and other instrument was used to characterize the product and corresponding particle size.

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17

Blake, W. H., P. J. Wallbrink, and I. G. Droppo. "Sediment aggregation and water quality in wildfire-affected river basins." Marine and Freshwater Research 60, no. 7 (2009): 653. http://dx.doi.org/10.1071/mf08068.

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Off-site transfer of nutrient-rich burnt soil has implications for downstream water quality. Coarsening of effective particle size (EPS) distributions in burnt material via aggregation of fines into composite particles modifies post-fire sediment and nutrient transport dynamics. Experiments were undertaken to establish temperature controls on wildfire-enhanced soil aggregation. Burnt and unburnt soil from a temperate eucalypt forest were analysed for EPS and settling velocity using a LISST-ST (Laser In Situ Scatter and Transmissometry with Settling Tube) particle size analyser. Next, samples w

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18

Labus, N., J. Krstic, S. Markovic, D. Vasiljevic-Radovic, M. V. Nikolic, and V. Pavlovic. "ZnTiO3 ceramic nanopowder microstructure changes during compaction." Science of Sintering 45, no. 2 (2013): 209–21. http://dx.doi.org/10.2298/sos1302209l.

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ZnTiO3 nanopowder as a constitutive component in compact production was primarily characterized. Scanning electron micrographs of as received powder were recorded. Mercury porosimetry and nitrogen adsorption were also performed on loose powder. Particle size distribution in a water powder suspension was determined with a laser particle size analyser. Compaction was performed on different pressures in a range from 100 to 400 MPa using the uniaxial double sided compaction technique without binder and lubricant. Micrographs of compacted specimens were obtained using scanning electron microscopy a

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Gysel, M., M. Laborde, A. A. Mensah, et al. "Technical Note: The single particle soot photometer fails to reliably detect PALAS soot nanoparticles." Atmospheric Measurement Techniques 5, no. 12 (2012): 3099–107. http://dx.doi.org/10.5194/amt-5-3099-2012.

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Abstract. The single particle soot photometer (SP2) uses laser-induced incandescence (LII) for the measurement of atmospheric black carbon (BC) particles. The BC mass concentration is obtained by combining quantitative detection of BC mass in single particles with a counting efficiency of 100% above its lower detection limit. It is commonly accepted that a particle must contain at least several tenths of a femtogram BC in order to be detected by the SP2. Here we show the result that most BC particles from a PALAS spark discharge soot generator remain undetected by the SP2, even if their BC mas

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20

Hao, Tianyu, Jing Shen, Qiaochu Peng, Jie Liu, Wenbin Hu, and Cheng Zhong. "Solid-State Synthesis for High-Tetragonality, Small-Particle Barium Titanate." Materials 17, no. 22 (2024): 5655. http://dx.doi.org/10.3390/ma17225655.

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This study successfully synthesized high-tetragonality barium titanate (BaTiO3) particles with a small particle size by implementing ball milling in the solid-state synthesis of BaTiO3 and utilizing nanoscale raw materials. This study also addressed the issues of impurities and uneven particle size distribution that could exist in the synthesized BaTiO3 particles. The crystal structure, morphology, and particle size of the synthesized BaTiO3 particles have been meticulously analyzed and discussed through the use of techniques such as X-ray diffraction (XRD), scanning electron microscopy (SEM),

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21

Masood, Irshad, S. K. Agarwal, and U. N. Sinha. "Effect of various admixtures on the particle size distribution of cement determined with the aid of laser particle analyser." Cement and Concrete Research 24, no. 3 (1994): 527–32. http://dx.doi.org/10.1016/0008-8846(94)90141-4.

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22

Ghermec, Olimpia, Ionela Gabriela Bucse, and Mariana Ciobanu. "Particle Size Distribution of the Coal Bottom Ash from the Large Combustion Plant." Advanced Engineering Forum 13 (June 2015): 210–15. http://dx.doi.org/10.4028/www.scientific.net/aef.13.210.

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Human existence is dependent on the consumption of electricity and of thermal energy. One of the environmental problems is represented by the particulate matter with the diameter of less than 2.5 mm derived from combustion of coal. In order to find solutions to reduce emissions at source, the particle size distribution of the coal bottom ash after removing it from the steam boiler of the large combustion plant from Romag Halanga in Drobeta Turnu – Severin area was determined. Dry particle size distribution shows that the major fraction is one that has a particle size of 125 μm. Particle size d

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23

Liu, Jianhe, and Wenzheng Li. "Experimental study on aerosol inhalation of the human upper airway." BIO Web of Conferences 59 (2023): 03016. http://dx.doi.org/10.1051/bioconf/20235903016.

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The study of aerosol deposition in the human upper respiratory tract is of great significance for understanding the impact of toxic aerosols on human health and improving the therapeutic effect of drug aerosol inhalation. 3D printing technology was used in the experimental model of the human upper airway. A laser particle size analyzer was used to study the deposition of aerosol particles with a particle size of 1-20 μm inhaled in the upper respiratory tract of the human body, and the particle deposition rules of the aerosol particles in the upper respiratory tract were analyzed. The experimen

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Li, Ming Jue, Ying Yan Diao, and Xi Jun Liu. "Synthesis and Characterization of PBA/aPS Core-Shell Latex Particles." Advanced Materials Research 631-632 (January 2013): 588–91. http://dx.doi.org/10.4028/www.scientific.net/amr.631-632.588.

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The core-shell structure copolymer of PBA/PS was prepared using pre-emulsion and semi-continues polymerization process. The particle size of core-shell latex and the St conversion of shell monomer were affected by emulsifier, initiator, pH and temperature etc. Meanwhile, the laser particle size analyzer, transmission electron microscope and other test methods were utilized to study latex particle average particle size, size distribution and morphological structure, respectively. The kinetics of polymerization was investigated. Well-defined core-shell structure and narrow particle sizedistribut

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INABA, Keizo, and Kanji MATSUMOTO. "The Measurement of Particle Concentration Using a Laser Diffraction Particle Size Analyzer." Journal of the Society of Powder Technology, Japan 34, no. 7 (1997): 490–98. http://dx.doi.org/10.4164/sptj.34.490.

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Valach, Michal, Jan Mareček, Zuzana Hlaváčová, Petr Trávníček, and Josef Glos. "Determination of impurities in biofuels with use of particle size analyzer." Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis 61, no. 3 (2013): 813–17. http://dx.doi.org/10.11118/actaun201361030813.

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One of the qualitative parameter of biofuel is purity. Measurement of purity of biofuels is very important. The reason is that the number and size of particles influence an engine life. However number and size of various particles have influence on the hydrodynamics and rheologic properties. In the first part of the paper is introduced the description of tested fuels, the method of measuring of number particles and size particles with use particle size analyzer Laser-Net Fines-C (LNF-C). In the second part of this paper results of measurements are stated. The results are compared and evaluated

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Du, Jian Hua, Yuan Yuan Li, and Xiao Hui Zheng. "Study on the Preparation of Cu/n-SiO₂ Composite Particles by Mechanical Milling." Advanced Materials Research 295-297 (July 2011): 840–43. http://dx.doi.org/10.4028/www.scientific.net/amr.295-297.840.

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Copper coated nano-SiO2 composite particles were prepared by mechanical milling technology. The effects of milling time on morphology, granularity, component and microstructure of the composite particles were characterized by scanning electronic microscope, laser particle size analyzer, energy depressives spectrometer and transmission electron microscope, respectively. Results showed that dendrite composite particles change to the flaky, and then to spherical ones with the milling time increasing. The particle size decreases firstly and then increases with the milling time increasing. The n-Si

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Wang, Qi, Yun Fa Chen, Min Yang, Xiao Feng Wu та Ya Jun Tian. "Synthesis of Low Agglomerating Spherical α-Fe₂O₃ Nanopowders". Key Engineering Materials 368-372 (лютий 2008): 1568–69. http://dx.doi.org/10.4028/www.scientific.net/kem.368-372.1568.

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Low agglomerating spherical α-Fe2O3 nanopowders were synthesized by catalytic phase transformation in hydrothermal reaction and then dried through freeze-drying. It was found that the as-synthesized particles were spherical and the particle size results obtained from the different measurement methods, including BET, XRD, TEM, SEM and laser particle size analyzer, were almost the same, implying that the α-Fe2O3 nanopowders were low agglomerating.

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Deguchi, Yoshihiro, Nobuyuki Tanaka, Masaharu Tsuzaki, Akihiro Fushimi, Shinji Kobayashi, and Kiyoshi Tanabe. "Detection of components in nanoparticles by resonant ionisation and laser breakdown time-of-flight mass spectrometry." Environmental Chemistry 5, no. 6 (2008): 402. http://dx.doi.org/10.1071/en08049.

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Environmental context. The monitoring of aerosol nanoparticles in the atmosphere is a ‘hot’ topic in environmental management. Such particles in the atmosphere are produced by the combustion of fossil fuels such as in engines. Although they make up only a small percentage of particle total mass, nanosized particles account for more than 90% of the particle number in diesel engine exhaust, and their harmful influences on human health are a serious issue. The system developed in this study has great potential to clarify the origin and behaviour of these aerosol particles more precisely using its

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Toongsuwan, S., H. C. Chang, L. C. Li, D. Stephens, and H. Plichta-Mahmoud. "Particle Size Determination of a Three-Component Suspension Using a Laser-Scattering Particle Size Distribution Analyzer." Drug Development and Industrial Pharmacy 26, no. 8 (2000): 895–900. http://dx.doi.org/10.1081/ddc-100101315.

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Kubínová, Romana, Martin Neumann, and Petr Kavka. "Aggregate and Particle Size Distribution of the Soil Sediment Eroded on Steep Artificial Slopes." Applied Sciences 11, no. 10 (2021): 4427. http://dx.doi.org/10.3390/app11104427.

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In this study, the particle size distribution (PSD) of the soil sediment from topsoil obtained from soil erosion experiments under different conditions was measured. Rainfall simulators were used for rain generation on the soil erosion plots with slopes 22°, 30°, 34° and length 4.25 m. The influence of the external factors (slope and initial state) on the particle and aggregate size distribution were evaluated by laser diffractometer (LD). The aggregate representation percentage in the eroded sediment was also investigated. It has been found that when the erosion processes are intensive (steep

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Meyer, Arne, Karsten Dierks, and Christian Betzel. "Depolarized Dynamic Light Scattering a method to analyse Particle Shape and Size." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1749. http://dx.doi.org/10.1107/s2053273314082503.

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"Dynamic Light Scattering (DLS) is already a widely used method for small particle size distribution analysis [1]. The main purpose of this method is the determination of particle sizes, respectively the hydrodynamic radius in the sub-microscopic range, i.e. 1 nm up to few µm. It is based on the Brownian motion of those particles. Light scattering methods are non-invasive and therefore a great advantage in the field of particle analysis [2a]. The next generation of Dynamic Light Scattering devices will apply depolarized dynamic light scattering (DDLS) [2b]. This technique allows to obtain besi

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Bieganowski, Andrzej, Grzegorz Łagód, Magdalena Ryżak, Agnieszka Montusiewicz, Mariola Chomczyńska, and Agata Sochan. "Measurement of activated sludge particle diameters using laser diffraction method / Pomiary średnicy cząstek osadu czynnego za pomocą metody dyfrakcji laserowej." Ecological Chemistry and Engineering S 19, no. 4 (2012): 597–608. http://dx.doi.org/10.2478/v10216-011-0042-7.

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Abstract The paper presents a study on the possibility of using the laser diffraction method for measuring the size of the activated sludge particles. Susceptibility of the particles to mechanical disintegration, dependent on the programmed value of stirring intensity, was observed (stirring was caused by required dynamic flow of analysed suspension through the measurement unit). According to the conclusions presented in this paper, it may be assumed that the laser diffraction method can be applied for measurement of activated sludge particle diameters under the following conditions: 1) the si

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He, Yujiang, and Guiling Wang. "Identifying the soil structure of the piedmont–plains by the fractal dimension of particle size." Soil and Water Research 14, No. 4 (2019): 212–20. http://dx.doi.org/10.17221/87/2018-swr.

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Soil structure fundamentally determines the hydrodynamic characteristics of the saturated–unsaturated zone, solute transport characteristics, and thermodynamic properties of the soil. Additionally, it regulates the process of transfer and conversion of matter and energy in the saturated–unsaturated zone. However, the quantification of soil structure is difficult because it depends on a combination of factors including soil particle sizes and types and spatial distribution of pores. In this study, the structural characteristics of the vadose zone are examined based on self-similarity in the soi

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Wang, Xiao Juan, Zhi Yi Li, Sheng Hui Yao, and Zhi Jun Liu. "Continuous Hydrothermal Synthesis of LiFePO₄Particles in Supercritical Water." Applied Mechanics and Materials 552 (June 2014): 304–7. http://dx.doi.org/10.4028/www.scientific.net/amm.552.304.

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Lithium iron phosphate particles were synthesized with supercritical water as a reaction medium, and the effects of temperature and pressure on particle purity and size were examined. A flow-through reactor was designed and set up with a SUS316L stainless steel material, and a large yield could be obtained with no preheated water involved. The products were recovered and characterized by X-Ray Diffration (XRD), Laser Particle Analyzer (LPA), and Scanning Electron Microscopy (SEM). Particles with an average size of 500nm could be obtained continuously.

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Archary, Hamresin, Walter Schmitz, and Louis Jestin. "Mass flow and particle size monitoring of pulverised fuel vertical spindle mills." Chemical and Process Engineering 37, no. 2 (2016): 175–97. http://dx.doi.org/10.1515/cpe-2016-0016.

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Abstract The first step towards condition based maintenance of the milling plant is the implementation of online condition monitoring of the mill. The following paper presents and analyses methods of monitoring the key performance factors of a vertical spindle mill that is suited for implementation on older power stations, i.e. the quantity (mass flow rate) and quality (particle fineness) of the pulverised fuel produced by the mill. It is shown herein that the mill throughput can be monitored on-line using a simple mill energy balance that successfully predicts the coal throughput within 2.33%

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KHAKBIZ, MEHRDAD, and FARSHAD AKHLAGHI. "EFFECT OF MECHANICAL ALLOYING PROCESS PARAMETERS ON CHARACTERISTICS OF Al-B4C NANOCOMPOSITE-NANOCRYSTLLINE POWDER PARTICLES." International Journal of Modern Physics B 22, no. 18n19 (2008): 2924–32. http://dx.doi.org/10.1142/s0217979208047766.

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In the present work the effect of milling time (2-16h), milling speed (320 and 420rpm), as-received aluminum particle size (21 and 71 μm), B 4 C size (90, 700 and 1200nm) and its content (5% and 10%) on the characteristics of Al - B 4 C powder particles during milling was investigated by scanning electron microscopy (SEM) and laser particle size (LPS) analyzer. X-ray diffraction was used to investigate the crystal size and internal strains within the processed aluminum particles at different conditions. It was concluded that powder particles size increased after 4h milling but further milling

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Zhang, Lin, Guang Hui Min, Hua Shun Yu, Hong Mei Chen, and Gang Feng. "The Size and Morphology of Fine CaB₆ Powder Synthesized by Nanometer CaCO₃ as Reactant." Key Engineering Materials 326-328 (December 2006): 369–72. http://dx.doi.org/10.4028/www.scientific.net/kem.326-328.369.

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Based on the CaCO3-B4C-C system to prepare calcium hexaboride (CaB6) powder, the influence of B4C size on the CaB6 powder was investigated in this paper, in which micro-sized B4C in various size and nano-sized CaCO3 were as main raw materials. XRD and SEM were used to characterize the phase pattern, size and morphology of CaB6 powder particles respectively. Laser particle size analyzer was employed to determine the size distribution of CaB6 particles. It was found that the size of B4C had a dominant effect on the size and distribution of CaB6 powder particles. When B4C particles were much coar

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Straż, Grzegorz, and Małgorzata Szostek. "The Use of a Laser Diffractometer to Analyze the Particle Size Distribution of Selected Organic Soils." Applied Sciences 14, no. 18 (2024): 8104. http://dx.doi.org/10.3390/app14188104.

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This study was conducted to verify the usefulness of the laser diffractometer method for determining the particle size distribution of selected organic soils from the Podkarpacie region in Poland. The soil selected for this research represented three main classification groups, namely, low-organic, medium-organic and high-organic soil, in accordance with the standard criterion. Particle size distribution was determined using two types of laser diffractometers: the Helos laser diffractometer manufactured by Sympatec GmbH (Clausthal-Zellerfeld, Germany) and the laser particle size analyzer Analy

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Polakowski, Cezary, Magdalena Ryżak, Agata Sochan, Michał Beczek, Rafał Mazur, and Andrzej Bieganowski. "Particle Size Distribution of Various Soil Materials Measured by Laser Diffraction—The Problem of Reproducibility." Minerals 11, no. 5 (2021): 465. http://dx.doi.org/10.3390/min11050465.

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Particle size distribution is an important soil parameter—therefore precise measurement of this characteristic is essential. The application of the widely used laser diffraction method for soil analysis continues to be a subject of debate. The precision of this method, proven on homogeneous samples, has been implicitly extended to soil analyses, but this has not been sufficiently well confirmed in the literature thus far. The aim of this study is to supplement the information available on the precision of the method in terms of reproducibility of soil measurement and whether the reproducibilit

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Vishnyakov, V. I., S. A. Kiro, M. V. Oprya, and A. A. Ennan. "Unipolar charging of welding fume particles and their charge distribution." Physics of Aerodisperse Systems, no. 51 (March 19, 2014): 99–108. http://dx.doi.org/10.18524/0367-1631.2014.51.160096.

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The experimental technique including the differential mobility analyzer and laser aerosol spectrometer is proposed for determining the charge distribution of aerosol particles charging by the corona discharge. The procedure of the experimental data processing, which does not require any theory of particle charging, also proposed. The welding fume particle size and charge distributions based only on the experimental data are demonstrated.

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Selezneva, Olga I., Victor S. Orlov, and Pavel A. Shustov. "High-performance heavyweight concrete containing carbon modifier." Journal «Izvestiya vuzov. Investitsiyi. Stroyitelstvo. Nedvizhimost» 11, no. 4 (2021): 654–61. http://dx.doi.org/10.21285/2227-2917-2021-4-654-661.

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Reducing the consumption of cement in the production of concrete mixtures has been a topical issue in the construction industry. The study aims to optimise the structure of concrete stone by selecting the particle size distribution of the components to nanoscale values. Such microfillers include silica fume, metakaolin, ashes, nanographite/graphene, etc. Thus, producing additives of complex action having a plasticising ability, as well as containing finely dispersed fillers forming binding material, is promising. Expandable graphite was dispersed in an aqueous medium and subjected to ultrasoni

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Huang, Lina. "Discussion and application of ball mill in preparation of particle size samples of fine grained sedimentary rocks." Journal of Physics: Conference Series 2499, no. 1 (2023): 012008. http://dx.doi.org/10.1088/1742-6596/2499/1/012008.

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Abstract The grain size of clastic rocks is one of the most important structural characteristics of clastic sediments, which can directly reflect the hydrodynamic conditions of ancient sedimentary period. The preparation of conventional clastic rock particle size samples is usually done by hand wet grinding with a grinding hammer by experienced experimenter. For the fine-grained sedimentary rocks, the conventional method for preparing grain size samples has the disadvantages of long time and low efficiency. This paper introduces a method of preparing grain size samples of fine grained sediment

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Chen, Ning, Ming Tang, Jing Qi Li, and Hong Liang Liu. "Testing and Evaluation on Fractal Characteristic of Cementing Materials Powder." Advanced Materials Research 374-377 (October 2011): 1848–53. http://dx.doi.org/10.4028/www.scientific.net/amr.374-377.1848.

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The cement powder materials are evaluated by fractal theory. Fractal characteristic parameters are analysed and evaluated by the method of laser particle size analyzer, microscope, transmission electron microscope. In this paper, cement powder materials has good self-similarity. Fractal dimension of grading is tested and evaluated by laser particle size analyzer, fractal dimension of cluster is tested by microscope, fractal characteristic of particle distribution is tested by transmission electron microscope. Compared with traditional weight of screen residue and specific surface area, those m

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Xiang, Hengsheng, Bo Cheng, Chengfei Zhang, and Wensheng Qiao. "Study of Particle Size Measurement by the Extinction Method in Flame." Energies 16, no. 12 (2023): 4792. http://dx.doi.org/10.3390/en16124792.

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The laser extinction method (LEM) is particularly suitable for measuring particle sizes in flames because this method, which is based on the Beer–Lambert law, is non-intrusive and easy to implement. In the LEM, the interpretation of the extinction data is usually developed under the assumption that light extinction due to scattering is a result of the superposition of single scattering by individual particles; however, this could be violated for flames with dense concentrations of particles in which multiple scattering could occur. Quantifying the effect of multiple scattering under general co

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Ji, Yubi, Zhao Yang, Min Shi, and Hong Tan. "Effect of the particulate morphology of resin on the gelation process of PVC plastisols." Journal of Polymer Engineering 37, no. 8 (2017): 757–64. http://dx.doi.org/10.1515/polyeng-2016-0215.

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Abstract The gelation process of poly(vinyl chloride) (PVC) plastisol is very important to ensure the quality of the product and is affected by the type of resins, plasticizers, and other additives. In this study, the gelation process of the as-prepared PVC plastisol was characterized by measuring the evolution of vibrational viscosity with temperature or time using a vibrational viscometer. Furthermore, the effect of some commercial resins with different particulate morphologies on the gelation process was investigated by synchronously combining scanning election microscopy and laser particle

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Wei, Xiao Li, and Fa Xing Zhang. "Preparation of Nano-SiO₂ Particles Modified by Fluorine Silane Coupling Agent." Advanced Materials Research 915-916 (April 2014): 709–12. http://dx.doi.org/10.4028/www.scientific.net/amr.915-916.709.

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In this paper nanoSiO2 particles were prepared with the surface grafted fluorine coupling agents and double bond by using surface modification technology. Dispersion effect of nanoSiO2 particles were studied in different solvents ultrasound cavitation. Test results showed in infrared spectroscopy, TEM and laser particle size distribution analyzer that both F8261 and KH-570 have been grafted onto the surface of nanoSiO2 , particle size and distribution of nanoSiO2 after modified by the two coupling agent became smaller and more narrow; Tg-DSC analysis showed that when the amount of of the coupl

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Ханин, Sergey Khanin, Трофимченко, Vladimir Trofimchenko, Мордовская, and Olga Mordovskaya. "STUDY OF PARTICLE AGGREGATES COARSE-GRAINED MARL AND PROCESS OF DIS-AGGREGATION OF IT IN THE SEPARATOR WITH DEVICE AS MULTIPLE-BANDS." Bulletin of Belgorod State Technological University named after. V. G. Shukhov 1, no. 12 (2016): 114–20. http://dx.doi.org/10.12737/22712.

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Production of powder materials is accompanied by the formation of aggregates of particles, which complicates the process of their separation. For example coarse-grained marl with high resolution scanning electronic microscope and laser particle size analyzer studies performed that allowed to establish the size of the particles aggregating, volume distribution, their shape and nature of contacts between particles. In the experimental setup of the circulation separator disaggregated device in the form of multiple-bands, using the method of mathematical experiment planning central composite ortho

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Han, Z. Y., W. G. Weng, and Q. Y. Huang. "Characterizations of particle size distribution of the droplets exhaled by sneeze." Journal of The Royal Society Interface 10, no. 88 (2013): 20130560. http://dx.doi.org/10.1098/rsif.2013.0560.

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This work focuses on the size distribution of sneeze droplets exhaled immediately at mouth. Twenty healthy subjects participated in the experiment and 44 sneezes were measured by using a laser particle size analyser. Two types of distributions are observed: unimodal and bimodal. For each sneeze, the droplets exhaled at different time in the sneeze duration have the same distribution characteristics with good time stability. The volume-based size distributions of sneeze droplets can be represented by a lognormal distribution function, and the relationship between the distribution parameters and

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El Ouahabi, M., L. Daoudi, and N. Fagel. "Mineralogical and geotechnical characterization of clays from northern Morocco for their potential use in the ceramic industry." Clay Minerals 49, no. 1 (2014): 35–51. http://dx.doi.org/10.1180/claymin.2014.049.1.04.

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AbstractThis study focuses on the mineralogical and geotechnical characterization of northern Moroccan clays from the Tangier and Tetouan areas and compares them with the main clay deposits used in the Moroccan ceramic industry (from Meknes, Fes, Salé and Safi regions). Sampled clays were analysed by X-ray diffraction on bulk and clay (<2 μm) fractions to identify the mineralogical assemblages of the clay outcrops. Further analyses were conducted to determine the particle size distribution (laser diffraction particle analyser), the total organic matter content (Loss- On-Ignition measurement

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