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Готові списки джерел за темами / Micro-size fibers / Статті в журналах

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Статті в журналах з теми "Micro-size fibers"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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1

Lu, Hai Xing, Xie Quan Liu, Xin Hua Ni, Tao Sun, and Bao Feng Li. "Size Dependent Micro-Stress-Field of Fibers in Eutectic Ceramic Rod." Advanced Materials Research 168-170 (December 2010): 226–29. http://dx.doi.org/10.4028/www.scientific.net/amr.168-170.226.

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Considering the interaction between fiber-inclusion and strong constraining interphase, forth-phase model is suggested to determine the local stress field distribution of three-phase element in eutectic ceramic rod. On the basis of the volumetric average strain, the effective compliance tensor increment of eutectic ceramic rod is obtained. The remote stress boundary condition of the eutectic ceramic rod is accounted for getting the micro stress field of fibers in eutectic ceramic rod. The results show the micro stress field of the fiber-inclusion in eutectic ceramic rod is associated with the

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2

Khamees, Shahad S., Mohammed M. Kadhum, and Nameer A. Alwash. "Effects of Steel Fibers Geometry on the Mechanical Properties of SIFCON Concrete." Civil Engineering Journal 6, no. 1 (2020): 21–33. http://dx.doi.org/10.28991/cej-2020-03091450.

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This research aims to shed light on the effect of steel fiber shape, length, diameter, and aspect ratio on the mechanical properties of slurry infiltration fiber reinforced concrete (SIFCON). This study comprised of casting and testing three groups of SIFCON specimens with 6% fiber volume fraction. The first group was reinforced with micro steel fiber, other reinforced by hook end steel fibers, while the last group of specimens reinforced by mixing two shape of steel fiber as hybrid fiber (3% micro steel fiber +3% hook end steel fiber). Silica fume was used as a partial replacement (10%) by we

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3

Nguyen, Duy-Liem, Thac-Quang Nguyen, and Huynh-Tan-Tai Nguyen. "Influence of fiber size on mechanical properties of strain-hardening fiber-reinforced concrete." Journal of Science and Technology in Civil Engineering (STCE) - NUCE 14, no. 3 (2020): 84–95. http://dx.doi.org/10.31814/stce.nuce2020-14(3)-08.

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This research deals with the influences of macro, meso and micro steel-smooth fibers on tensile and compressive properties of strain-hardening fiber-reinforced concretes (SFCs). The different sizes, indicated by length/diameter ratio, of steel-smooth fiber added in plain matrix (Pl) were as follows: 30/0.3 for the macro (Ma), 19/0.2 for the meso (Me) and 13/0.2 for the micro fiber (Mi). All SFCs were used the same fiber volume fraction of 1.5%. The compressive specimen was cylinder-shaped with diameter × height of 150 × 200 mm, the tensile specimen was bell-shaped with effective dimensions of

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4

Gan, Yong X., and Jeremy B. Gan. "Porous Fiber Processing and Manufacturing for Energy Storage Applications." ChemEngineering 4, no. 4 (2020): 59. http://dx.doi.org/10.3390/chemengineering4040059.

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The objective of this article is to provide an overview on the current development of micro- and nanoporous fiber processing and manufacturing technologies. Various methods for making micro- and nanoporous fibers including co-electrospinning, melt spinning, dry jet-wet quenching spinning, vapor deposition, template assisted deposition, electrochemical oxidization, and hydrothermal oxidization are presented. Comparison is made in terms of advantages and disadvantages of different routes for porous fiber processing. Characterization of the pore size, porosity, and specific area is introduced as

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5

Zhang, Guanhua, Jiayue Xu, Haoyang Xie, et al. "Diameter-Dependent Shape Memory Effect and Superelasticity in Ni-Mn-Ga Alloy Micro-fibers." Journal of Solar Energy Research Updates 10 (August 24, 2023): 46–53. http://dx.doi.org/10.31875/2410-2199.2023.10.05.

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Abstract: The functional properties of shape memory alloys (SMAs) may be affected by the material size and thus is important for designing micron-sized devices. Here the diameter-dependent size effect was demonstrated in Ni-Mn-Ga fibers with diameters of 15, 41, 53 and 70μm. The effect of fiber diameter on the shape memory effect (SME) and superelasticity (SE) was systematically studied. The results showed that all Ni-Mn-Ga fibers exhibited good stress assisted thermal cycles and SE, both diameter-dependent. For stress assisted thermal cycles, the temperature hysteresis of martensite transform

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6

Gandhi, Umesh, De Boodt Sebastian, Vlastimil Kunc, and YuYang Song. "Method to measure orientation of discontinuous fiber embedded in the polymer matrix from computerized tomography scan data." Journal of Thermoplastic Composite Materials 29, no. 12 (2015): 1696–709. http://dx.doi.org/10.1177/0892705715584411.

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Usage of discontinuous glass fibers in injection- and compression-molded resin components is rapidly increasing to improve their mechanical properties. Since added fiber contributes to more strength along the fiber direction compared with transverse direction, the mechanical properties of such components strongly depend on the fiber orientation. Therefore, it is important to estimate the fiber orientation distribution in such materials. In this article, we are presenting a recently developed method to estimate fiber orientation using micro computerized tomography (CT) scan-generated three-dime

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7

Rengasamy Kannathasan, Karunamoorthy, Andrejs Krasnikovs, Arthur Macanovskis, and Iveta Novakova. "MECHANICAL BEHAVIOR OF COMPOSITE BASALT SHORT FIBER FOR CONCRETE STRUCTURE REINFORCEMENT." ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference 3 (June 22, 2024): 248–52. http://dx.doi.org/10.17770/etr2024vol3.8157.

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Interest to Fiber concrete - concrete reinforced with short randomly distributed in the material volume fibers is growing and obtaining more new fields of application. Initially used fibers were steel. Composite Fibers (CF) have become competitive with steel fibers, fiber concretes with such fibers are now under investigation. In the present research, authors investigated the bond strength between the fiber and concrete, as well as other mechanical characteristics of the fiber concrete with CF. CF were made of short basalt micro-fibers glued together by Epoxy resin. Basalt micro-fiber roving (

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8

Gong, Chenjie, Lei Kang, Wenhan Zhou, Linghui Liu, and Mingfeng Lei. "Tensile Performance Test Research of Hybrid Steel Fiber—Reinforced Self-Compacting Concrete." Materials 16, no. 3 (2023): 1114. http://dx.doi.org/10.3390/ma16031114.

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Notched beam specimens were loaded by the three-point bending test device, and the effects of different volume contents and combinations of steel fibers on the tensile properties of hybrid steel fiber–reinforced self-compacting concrete (HSFRSCC) were studied. The failure law and strain field distribution of the specimens were studied by digital image correlation (DIC) technology. Moreover, the curves between the load and crack mouth opening displacement (CMOD) of 18 groups of hybrid steel fiber–reinforced concrete specimens were obtained, and the stress–strain curves of 18 groups of specimens

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9

Wang, Lei, and Chunxia He. "Effects of rice husk fibers on the properties of mixed-particle-size fiber-reinforced polyvinyl chloride composites under soil accelerated aging conditions." Journal of Engineered Fibers and Fabrics 14 (January 2019): 155892501987928. http://dx.doi.org/10.1177/1558925019879288.

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In this article, rice husk fiber/polyvinyl chloride composites were prepared and analyzed. The optimal composition of mixed-particle-size fiber-reinforced composites was determined through orthogonal experimentation. The physical, mechanical, and thermal properties of the mixed-particle-size fiber-reinforced composites were compared to unprocessed (100 mesh) rice husk fiber/polyvinyl chloride composites. The surface microscopic appearances of the unprocessed and final composites were observed via laser microscope. Long-term accelerated soil aging caused micro-cracks to appear on the surfaces o

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10

Jiang, Wei, Shaoyang Liu, Chengfeng Zhou, et al. "Preparation of nanocellulose directly from kenaf bast: The change in particle size." BioResources 13, no. 3 (2018): 5598–607. http://dx.doi.org/10.15376/biores.13.3.5598-5607.

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Producing nanocellulose from lignocellulosic plants is difficult but can be achieved with microwave-assisted treatment. However, the changes in dimensions during the process have not been investigated thoroughly. In this study, kenaf bast was used to produce cellulose nanofibers using microwave, chemical, and ultrasonic treatments. Fiber sizes were monitored throughout the experiment using an optical microscope and scanning electron microscopy (SEM). The kenaf single fiber cells were also isolated and measured. The results showed that the duration of microwave treatment notably influenced the

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11

Avcıoğlu, Suna, Merve Buldu-Akturk, Emre Erdem, Figen Kaya, and Cengiz Kaya. "Boron Carbide as an Electrode Material: Tailoring Particle Morphology to Control Capacitive Behaviour." Materials 16, no. 2 (2023): 861. http://dx.doi.org/10.3390/ma16020861.

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In this study, boron carbide powders consisting mainly of nano/micro fibers or polyhedral-equiaxed particles were synthesized via the sol–gel technique, and the influence of particle morphology on electrochemical performance of boron carbide electrodes was investigated. Thermal decomposition duration of the precursors played a determinant role in the final morphology of the synthesized boron carbide powders. The morphology of boron carbide powders successfully tuned from polyhedral-equiaxed (with ~3 µm average particle size) to nano/micro fibers by adjusting the thermal decomposition duration

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12

Yudha, Venditias, Ferriawan Yudhanto, Heru Santoso Budi Rochardjo, and Satriawan Dini Hariyanto. "Cellulose Microfibers from Salacca Midrib Fiber Isolated by the Mechanical Treatment." JURNAL SELULOSA 11, no. 01 (2021): 1. http://dx.doi.org/10.25269/jsel.v11i01.319.

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Salacca midrib fibers are abundant natural waste in Turi, Sleman Regency, Daerah Istimewa Yogyakarta. Cellulose Microfibers from the salacca midrib fiber has been isolated by mechanical treatment and successfully has good physical characteristics. Cellulose fibers with micro sizes can strengthen the bond effect between the matrix and the fiber due to the vast contact area. The method for isolated cellulose microfibers by mechanical treatment for speed rotation of 5000, 10000 and 15000 rpm. Mechanical stirrer treatment aims to fibrillation and reduces fiber dimensions because of their high rota

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13

Tong, Ho Wang, and Min Wang. "Effects of Processing Parameters on the Morphology and Size of Electrospun PHBV Micro- and Nano-Fibers." Key Engineering Materials 334-335 (March 2007): 1233–36. http://dx.doi.org/10.4028/www.scientific.net/kem.334-335.1233.

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Poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) was used to fabricate micro- and nano-fibrous, non-woven mats by electrospinning for potential tissue engineering applications. The morphology and size of electrospun fibers were assessed systematically by varying the processing parameters. It was found that the diameter of the fibers produced generally increased with electrospinning voltage, needle diameter for the polymer jet and polymer solution concentration. Beaded fibers were readily produced at low PHBV concentrations, whereas the needle was blocked within a very short time during elec

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14

Al-obaidey, Shubbar Jawad. "The Effects of Maximum Attapulgite Aggregate Size and Steel Fibers Content on Fresh and Some Mechanical Properties of Lightweight Self Compacting Concrete." Journal of Engineering 26, no. 5 (2020): 172–90. http://dx.doi.org/10.31026/j.eng.2020.05.12.

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The main objectives of this study were investigating the effects of the maximum size of coarse Attapulgite aggregate and micro steel fiber content on fresh and some mechanical properties of steel fibers reinforced lightweight self-compacting concrete (SFLWSCC). Two series of mixes were used depending on maximum aggregate size (12.5 and 19) mm, for each series three different steel fibers content were used (0.5 %, 1%, and 1.5%). To evaluate the fresh properties, tests of slump flow, T500 mm, V funnel time, and J ring were carried out. Tests of compressive strength, splitting tensile strength, f

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15

Subyakto, Subyakto, Nanang Masruchin, Prasetiyo Kurnia Wiji, and Ismadi Ismadi. "UTILIZATION OF MICRO SISAL FIBERS AS REINFORCEMENT AGENT AND POLYPROPYLENE OR POLYLACTIC ACID AS POLYMER MATRICES IN BIOCOMPOSITES MANUFACTURE." JOURNAL OF FORESTRY RESEARCH 10, no. 1 (2013): 11–20. https://doi.org/10.20886/ijfr.2013.10.1.11-20.

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Sisal (Agave sisalana) as a perennial tropical plant grows abundantly in Indonesia. Its fibers can be used as the reinforcement agent of biocomposite products. Utilization of sisal as natural fiber has some notable benefits compared to synthetic fibers, such as renewable, light in weight, and low in cost. Manufacture of biocomposite requires the use of matrix such as thermoplastic polymer, e.g. polypropylene (PP) and polylactic acid (PLA) to bond together with the reinforcement agent (e.g. sisal fibers). In relevant, experiment was conducted on biocomposites manufacture that comprised sisal fi

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16

Ma, Youye, Kanghui Cai, Guojie Xu, et al. "Large-Scale and Highly Efficient Production of Ultrafine PVA Fibers by Electro-Centrifugal Spinning for NH3 Adsorption." Materials 16, no. 7 (2023): 2903. http://dx.doi.org/10.3390/ma16072903.

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Ultrafine Polyvinyl alcohol (PVA) fibers have an outstanding potential in various applications, especially in absorbing fields. In this manuscript, an electrostatic-field-assisted centrifugal spinning system was designed to improve the production efficiency of ultrafine PVA fibers from PVA aqueous solution for NH3 adsorption. It was established that the fiber production efficiency using this self-designed system could be about 1000 times higher over traditional electrospinning system. The produced PVA fibers establish high morphology homogeneity. The impact of processing variables of the const

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17

Lu, Yi, Xin Chun Yang, Jin Lian Zhu, Fu Zhan Song, and Xiang Qian Shen. "Morphological and Magnetic Characteristics of Strontium Ferrite Micro- and Nanofibers." Advanced Materials Research 399-401 (November 2011): 736–40. http://dx.doi.org/10.4028/www.scientific.net/amr.399-401.736.

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Strontium ferrite micro- and nanofibers have been prepared by the sol-gel process and the electrospinning with diameters about 1 μm and 100 nm, respectively. Single phase strontium ferrite fibers are formed after calcined at 750 °C for 2 hours for both the sol-gel and electrospinning processes. These strontium ferrite fibers are fabricated of nanosized particles with a hexagonal plate-like morphology, which grow with the calcination temperature. The microfiber cross-section contains multi-nanoparticles whilst the nanofiber with a necklace-like morphology is linked by nanoparticles at the calci

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18

Trejbal, Jan, Lubomír Kopecký, Pavel Tesárek, and Zdeněk Prošek. "Influence of the Oxygen Plasma Treatments on Surface Wettability of Glass Micro Fibers Used as Reinforcement in any Mortars." Key Engineering Materials 714 (September 2016): 148–51. http://dx.doi.org/10.4028/www.scientific.net/kem.714.148.

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Presented work deals with the surface treatments and its effect on micro fibers using as randomly dispersed reinforcement in many types of composite materials. Cool oxygen plasma was used to surface wettability modification of chopped glass fibers having diameter equal to 14 μm. Plasma treatments were carried out at three different times of exposition equal to 4 min, 8 min and 16 min. The influence of executed treatments was observed by the horizontal direct optical method enabling static contact angle measurements on micro fibers which were submerged in a distilled water. The identified diffe

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19

Dhruv, Deepak, and R. Minde P. "Exploration of Characteristics of Steel Fiber Reinforced Concrete and Its Influence on Regular Concrete." International Journal of Recent Technology and Engineering (IJRTE) 9, no. 2 (2020): 209–12. https://doi.org/10.35940/ijrte.B3380.079220.

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Concrete is the most widely used product in the construction sector mainly because of its properties and its capability to be moulded to any size. Plain concrete has low tensile strength and forms internal micro cracks. It has been proven that with the addition of natural fibers and synthetic fibers in concrete, it helps in the durability and functionality of structure. The steel fibers are added to the concrete in very low volume doses and it has been effective in decreasing the plastic shrinkage in cracking and also acting as a crack arrestor. In this journal, experimental analysis on steel

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20

Gaston, Emily, Mary Woo, Clare Steele, Suja Sukumaran, and Sean Anderson. "Microplastics Differ Between Indoor and Outdoor Air Masses: Insights from Multiple Microscopy Methodologies." Applied Spectroscopy 74, no. 9 (2020): 1079–98. http://dx.doi.org/10.1177/0003702820920652.

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The abundance and distribution of microplastic (<5 mm) has become a growing concern, particularly over the past decade. Research to date has focused on water, soil, and organism matrices but generally disregarded air. We explored airborne microplastic inside and outside of buildings in coastal California by filtering known volumes of air through glass fiber filters, which were then subsequently characterized with a variety of microscopy techniques: gross traditional microscopy, fluorescent microscopy following staining with Nile red, micro-Raman spectroscopy, and micro-Fourier transform inf

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21

Yan, Jin, Hongyi Ma, Xueming Wang, et al. "Direct Measurement of Transverse Compressive Properties of Polyacrylonitrile-Based Single Carbon Fibers." Materials 18, no. 13 (2025): 3018. https://doi.org/10.3390/ma18133018.

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Evaluating the properties of single carbon fibers is crucial, as it provides parameters not only for optimizing carbon fiber production processes but also for enhancing composite material properties. In recent years, significant advancement have been made in the evaluations of the transverse compressive properties of single fibers. However, compressive testing methods for fibers in the fine size range remain limited at the commercial scale. The direct measurement of the transverse compressive properties of three domestic high-strength polyacrylonitrile-based single carbon fibers (T300 grade, T

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22

Md. Shahin, A. N., V. Shaayegan, P. C. Lee, and C. B. Park. "In Situ Visualization for Control of Nano-Fibrillation Based on Spunbond Processing Using a Polypropylene/Polyethylene Terephthalate System." International Polymer Processing 36, no. 3 (2021): 332–44. http://dx.doi.org/10.1515/ipp-2020-4072.

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Abstract In situ generation of polyethylene terephthalate (PET) nanofibrils in polypropylene (PP) microfibers via fiber spinning in a spunbond process was studied in this work. The effects of polymer flow rate and air speed in the drafter on the formation of PET fibrils were investigated using a pilot scale machine. An in-situ visualization technique was applied to examine the fiber evolution events and stretch profile at die exit. A scanning electron microscope was used to analyze and investigate the morphology of the dispersed domain. The PET dispersed phase was fibrillated within the PP mat

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23

Tufail, Muhammad Rizwan, Hafsa Jamshaid, Rajesh Mishra, Uzair Hussain, Martin Tichy, and Miroslav Muller. "Characterization of Hybrid Composites with Polyester Waste Fibers, Olive Root Fibers and Coir Pith Micro-Particles Using Mixture Design Analysis for Structural Applications." Polymers 13, no. 14 (2021): 2291. http://dx.doi.org/10.3390/polym13142291.

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In the present work, hybrid composites were developed by using polyester waste fibers along with natural origin materials: olive root fibers and coir pitch filler. Such composite panels can be used as a potential alternative for fiber glass sunshade panels and room dividers in buildings. Hybrid composites were fabricated by mixing polyester waste fibers and olive root fibers in different ratios (0:100, 33:67, 67:33 and 100:0). Coir pith micro-particles with an average size of 312 d.nm were used as filler in the polyester matrix at three different levels (0%, 5%, and 10%) of the overall matrix

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24

Tian, Yu, Yun Liang, Yan Cui, and Zeng Zhang. "Research on Fibrillated Nanofibers and Application of High Efficiency Filter Material." Advanced Materials Research 335-336 (September 2011): 411–14. http://dx.doi.org/10.4028/www.scientific.net/amr.335-336.411.

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Abstract. The nanofiber based filtering material, made up of fibers of diameter less than 1000 nm, have been discovered as new filtering material for effective filtrations. Lyocell fiber is a kind of regenerated fiber which can be easily fibrillated and brought no negative impact on the recovery of filter material.The present study focuses on how the Lyocell fiber changes with the intensity of beating and compares the effect of nano-fibrillated Lyocell fiber（61°SR） and micro glass fiber（44°SR） on the properties of filter material. The results show that the length, diameter, distortion and degr

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25

Zhang, Xiao Guang, Jing Li, and Zhan Li Miao. "Effect of Spinning Conditions on the Morphology of Polyacrylonitrile Hollow Fiber Membranes." Advanced Materials Research 221 (March 2011): 146–51. http://dx.doi.org/10.4028/www.scientific.net/amr.221.146.

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In this paper dry-wet spinning technique was used during the preparation of dialysis hollow fiber membranes, three-component solution polyacrylonitrile(PAN)/dimethylformamide (DMF)/Water was chosen as the basic materials. The macro and micro-morphology of the hollow fibers were observed by microscopy and SEM. The influence of some important spinning parameters such as spinning pressure, inner pressure and spinneret aperture was investigated. The appearance of some big bores in the outer surface and multilayer structure in the cross section of the hollow fibers was discussed based on phase tran

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26

Thammachat, Thanachod, Pornsak Sriamornsak, Manee Luangtana-Anan, Jurairat Nunthanid, Chutima Limmatvapirat (1), and Sontaya Limmatvapirat. "Preparation and Characterization of Shellac Fiber as a Novel Material for Controlled Drug Release." Advanced Materials Research 152-153 (October 2010): 1232–35. http://dx.doi.org/10.4028/www.scientific.net/amr.152-153.1232.

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The aim of this study was to investigate the effect of electrospinning process on the physical properties of fibers made from shellac. Electrospun shellac fiber was prepared by dissolving shellac in ethanol and then transferred to the electrospinning system. The influences of process parameters; including electric field voltage, tip to collector gap, feeding rate and concentration of shellac solutions; on the spinnability and properties of obtained shellac fibers were elucidated. The result demonstrated that micro-nano fibers of shellac were easily formed after spinning. The concentration of s

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27

Muhsin, Muhannad Hussien, and Israa Hameed AbdElzahra. "Studying the Combination Effect of Additives and Micro Steel Fibers on Cracks of Self-Healing Concrete." Journal of Engineering 22, no. 1 (2016): 49–67. http://dx.doi.org/10.31026/j.eng.2016.01.04.

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In this study, the effect of the combination of micro steel fibers and additives (calcium hydroxide and sodium carbonate) on the size of cracks formation and healing them were investigated. This study aims to apply the use of self-healing phenomenon to repair cracks and to enhance the service life of the concrete structures. Micro steel fibers straight type were used in this research with 0.2% and 0.4% by volume of concrete. A weight of 20 and 30 kg/m3 of Ca(OH)2 and 2 and 3 kg/m3 of Na2CO3 were used as a partial cement replacement. The results confirm that the concrete cracks were significant

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28

Hwang, Myung Goo, Gin Ho Kim, Han Ju Park, et al. "Fracture Parameters of Short Carbon Fiber Reinforced Polycarbonate Composite Fabricated by Injection Molding Process." Applied Mechanics and Materials 776 (July 2015): 186–92. http://dx.doi.org/10.4028/www.scientific.net/amm.776.186.

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This paper investigated the fracture behavior of the unavoidable breakage of carbon fibers and fiber orientation of short carbon fiber reinforced polycarbonate composite in injection process. In this experiment, short carbon fiber mixed compound of 1mm, 3mm, 5mm, 7mm length with 10wt.%, 15wt.%, 20wt.% in polycarbonate for injection molding were produced through the extruder. The dumbbell specimens for tensile evaluation were made by injection molding. The parent specimens were made by double gate method, the weld specimens were made by single gate method which was controlled by inserting a sto

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29

Rimmel, Oliver, and David May. "Modeling transverse micro flow in dry fiber placement preforms." Journal of Composite Materials 54, no. 13 (2019): 1691–703. http://dx.doi.org/10.1177/0021998319884612.

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Dry fiber placement has a large potential for manufacturing preforms for primary-load components at minimum scrap rate and fiber crimp. Yet, challenging impregnation behavior due to low permeability of these preforms during liquid composite molding imposes a need for further research to optimize preform structure for higher permeability. For full understanding of flow behavior within these preforms, flow has to be considered on micro scale (in between single fibers), on meso scale (in between single rovings or strands), and on macro scale (on scale of parts to be manufactured). While macro and

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30

Misumi, Jun, Raja Ganesh, Subramani Sockalingam, and John W. Gillespie. "Experimental characterization of tensile properties of epoxy resin by using micro-fiber specimens." Journal of Reinforced Plastics and Composites 35, no. 24 (2016): 1792–801. http://dx.doi.org/10.1177/0731684416669248.

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In unidirectional carbon fiber-reinforced plastic laminates, the distance between fibers can varies from submicron to micron length scales. The mechanical properties of the matrix at this length scale are not well understood. In this study, processing methods have been developed to produce high quality epoxy micro-fibers with diameters ranging from 100 to 150 µm that are used for tensile testing. Five types of epoxy resin systems ranging from standard DGEBA to high-crosslink TGDDM and TGMAP epoxy systems have been characterized. Epoxy macroscopic specimens with film thickness of 3300 µm exhibi

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Bodunrin, Isa Bakare, Bridget Oghenekewe Anugua, and Orike Sunny. "Reduction of Micro Bend Losses in Optical Fibers." European Journal of Advances in Engineering and Technology 7, no. 12 (2020): 1–8. https://doi.org/10.5281/zenodo.10669544.

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<strong>ABSTRACT</strong> Over time, optical telecommunication network cables experience power loss due to micro inflammations on the core of optical fiber cable lines. These inflammations are usually very small and cannot be detected by physical inspection. However, they constitute a prominent source of optical power loss irrespective of size. This mechanically induced loss effect is investigated in the bid to reduce optical power loss by using an optical approach. The factors inducing the power loss are majorly the joining of fiber optic cable lines as well as the perturbations arising from

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Li, Shuangxi, Xinhui Wei, and Ziming Dang. "A Study on the Mechanical Properties and Impact Resistance of Hybrid Fiber-Reinforced Cement-Based Composites with Low Water–Cement Ratios." Buildings 15, no. 10 (2025): 1688. https://doi.org/10.3390/buildings15101688.

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This study investigates the mechanical and impact resistance properties of high-performance cementitious composites (HPCCs) incorporating hybrid fibers under a low water-to-binder ratio, with a focus on the multi-scale synergistic effects of different fiber types. Aramid fibers (AFs), basalt fibers (BFs), and calcium sulfate whiskers (CSWs) contribute to reinforcement at the macro, meso, and micro levels, respectively. Experimental results reveal that hybrid fiber systems significantly outperform single-fiber composites in terms of both impact resistance and crack suppression. The optimal mix

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33

Guo, Jianjun, Song Lu, Yi Zhou, Yuanyuan Yang, Xiaoxian Yao, and Guohua Wu. "Heat-Insulated Regenerated Fibers with UV Resistance: Silk Fibroin/Al2O3 Nanoparticles." Molecules 29, no. 9 (2024): 2023. http://dx.doi.org/10.3390/molecules29092023.

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The various wastes generated by silkworm silk textiles that are no longer in use are increasing, which is causing considerable waste and contamination. This issue has attracted widespread attention in countries that use a lot of silk. Therefore, enhancing the mechanical properties of regenerated silk fibroin (RSF) and enriching the function of silk are important directions to expand the comprehensive utilization of silk products. In this paper, the preparation of RSF/Al2O3 nanoparticles (NPs) hybrid fiber with different Al2O3 NPs contents by wet spinning and its novel performance are reported.

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Emőke, Rédai, Zsombori Mónika, Székely-Szentmiklósi Blanka, and Sipos Emese. "Solubility enhancement of atorvastatin by embedding in micro sized carrier." Bulletin of Medical Sciences 92, no. 1 (2019): 47–52. http://dx.doi.org/10.2478/orvtudert-2019-0004.

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Abstract The aim of this experimental work was the enhancement of water solubility of the lipid lowering atorvastatin, by embedding it in polymer based micro sized fibers obtained by electrospinning. We prepared a polyvinylpyrrolidone (Kollidon 90F®) dispersion and added the active substance. By setting the experimental parameters we obtained four different microfibers containing atorvastatin, and one without the drug. The pH, viscosity and conductivity of the dispersions have been measured. The drug content and dissolution of atorvastatin had been studied by capillary electrophoresis. The siz

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Patchen, Andrew, Stephen Young, and Dayakar Penumadu. "An Investigation of Mechanical Properties of Recycled Carbon Fiber Reinforced Ultra-High-Performance Concrete." Materials 16, no. 1 (2022): 314. http://dx.doi.org/10.3390/ma16010314.

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Carbon fiber-reinforced concrete as a structural material is attractive for civil infrastructure because of its light weight, high strength, and resistance to corrosion. Ultra-high performance concrete, possessing excellent mechanical properties, utilizes randomly oriented one-inch long steel fibers that are 200 microns in diameter, increasing the concrete’s strength and durability, where steel fibers carry the tensile stress within the concrete similar to traditional rebar reinforcement and provide ductility. Virgin carbon fiber remains a market entry barrier for the high-volume production of

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36

Ramirez, Mirella, Louis Vaught, Chiu Law, Jacob L. Meyer, and Rani Elhajjar. "Electrospinning Processing Techniques for the Manufacturing of Composite Dielectric Elastomer Fibers." Materials 14, no. 21 (2021): 6288. http://dx.doi.org/10.3390/ma14216288.

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Dielectric elastomers (DE) are novel composite architectures capable of large actuation strains and the ability to be formed into a variety of actuator configurations. However, the high voltage requirement of DE actuators limits their applications for a variety of applications. Fiber actuators composed of DE fibers are particularly attractive as they can be formed into artificial muscle architectures. The interest in manufacturing micro or nanoscale DE fibers is increasing due to the possible applications in tissue engineering, filtration, drug delivery, catalysis, protective textiles, and sen

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Zare, Mohadeseh, Pooya Davoodi, and Seeram Ramakrishna. "Electrospun Shape Memory Polymer Micro-/Nanofibers and Tailoring Their Roles for Biomedical Applications." Nanomaterials 11, no. 4 (2021): 933. http://dx.doi.org/10.3390/nano11040933.

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Shape memory polymers (SMPs) as a relatively new class of smart materials have gained increasing attention in academic research and industrial developments (e.g., biomedical engineering, aerospace, robotics, automotive industries, and smart textiles). SMPs can switch their shape, stiffness, size, and structure upon being exposed to external stimuli. Electrospinning technique can endow SMPs with micro-/nanocharacteristics for enhanced performance in biomedical applications. Dynamically changing micro-/nanofibrous structures have been widely investigated to emulate the dynamical features of the

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38

Aziz, Fauziah Abdul, Ariffin Ismail, Wan Yunus Wan Md Zin, et al. "The Treated Cellulose Micro/Nano Fibers (CMNF) from Bioresources in Malaysia." Materials Science Forum 846 (March 2016): 434–39. http://dx.doi.org/10.4028/www.scientific.net/msf.846.434.

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Cellulose Micro/Nano fibers (CMNF) from various plants which is Resak (Vatica spp.) waste, Merbau (Intsia bijuga) waste, banana (Musa acuminata) pseudo-stem and pineapple (Ananas comosus) leaf fibers have been isolated and characterized. Isolation of microfibril cellulose from raw fibers was achieved using alkaline treatment and bleaching. The treated and untreated samples were characterized using x-ray diffraction (XRD) and field emission scanning electron microscopy (FESEM). Characterizations of treated and untreated samples were compared. The comparison between those treated and untreated s

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Zhang, Z. J., J. Li, Z. Q. Li, B. L. Li, and N. N. Xing. "Adsorption property and kinetic studies of activated carbon fibers prepared from tissues by CO2 activation." Digest Journal of Nanomaterials and Biostructures 18, no. 4 (2023): 1213–24. http://dx.doi.org/10.15251/djnb.2023.184.1213.

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Well-developed micro and mesoporous activated carbon fibers (ACFs) with fiber structure were prepared from tissue by CO2 activation. The XRD patterns and Raman spectrum indicated ACFs had a graphitic and amorphous structure. The SEM results indicated that the sample exhibited fiber structure with lots of mesoporous, with an average pore size of 2-5 nm. The specific surface area of 1517 m2 /g, micro surface area of 412.9 m2 /g, and total pore volume of 1.194 cm3 /g were obtained at 900°C with CO2 activation for 2 hours. ACFs showed relatively high methylene blue adsorption properties with an eq

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Pitruzzella, Rosalba, Chiara Marzano, Francesco Arcadio, et al. "Silica Optical Fibers Connected via a Micro MIP-Core Waveguide to Build Optical-Chemical Sensors." Chemosensors 13, no. 4 (2025): 139. https://doi.org/10.3390/chemosensors13040139.

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Анотація:

Molecularly imprinted polymers (MIPs) can be combined with optical fibers (OFs) to create various sensor configurations, yielding low-cost and highly sensitive extrinsic and intrinsic sensors. In this work, an MIP-based extrinsic optical fiber sensor is obtained by two silica OFs connected via an optical waveguide using an MIP as a core of micrometer size (micro OF-MIP-OF sensor). The proposed sensing approach can be used only with MIP receptors and implements an intensity-based sensor configuration. MIPs present several advantages over bio-receptors and can be exploited to realize novel sensi

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Hara, Tomoaki, Hideaki Katogi, and Kenichi Takemura. "Effect of Water Absorption and Resin Particle on Interfacial Shear Strength of CF/MAPP." Advanced Materials Research 1110 (June 2015): 23–26. http://dx.doi.org/10.4028/www.scientific.net/amr.1110.23.

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In this study, effects of water absorption and adding resin particles around fiber on interfacial shear strength of carbon fiber (CF)/maleic anhydride grafted polypropylene (MAPP) were investigated. In water absorption test, CF/MAPP specimen was immersed in distilled water at room temperature for four weeks. Micro debonding test of water absorbed CF/MAPP was conducted. Micro debonding test of Resin particle added Carbon Fiber (RCF)/MAPP was also conducted. The resin particle size was less than 5μm. Fracture surface of RCF/MAPP was observed by using Scanning Electron Microscope (SEM). As a resu

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42

Tan, Zi-Qian, Takaomi Kobayashi, and Duangdao Aht-Ong. "Extraction of cellulose nanofibers from empty palm fruit bunches via mechanical defibrillation." Journal of Metals, Materials and Minerals 31, no. 3 (2021): 10–19. http://dx.doi.org/10.55713/jmmm.v31i3.1138.

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In recent years, there has been an increasing interest in finding alternative material to replace fossil-oil based product due to the environmental concern. Lignocellulosic biomass has emerged as the promising candidate due to its low-cost and sustainability. The objective of this work was to prepare cellulose nanofibers (CNFs) from empty palm fruit bunches (EPFB), which are the waste originating from palm oil industry. Cellulose fibers were first extracted from EPFB by chemical treatment, followed by mechanical disintegration using high-pressure homogenization. Fiber concentration and defibri

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Granaz, Baloch, and Ur Rehman Haneef. "Desalination of Seawater through Adsorption of Magnesium and Sodium Ions Using Date Palm Trunk Fibers as Adsorbents." Journal of Water Resource Research and Development 7, no. 2 (2024): 28–37. https://doi.org/10.5281/zenodo.12062537.

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<em>Water scarcity is becoming the major problem for many countries due to increase of population, unpredicted urbanization and industrialization as well as due to climate change. In current study various steps of experiment were performed to analyze the adsorption capability of date trunk fiber for the adsorption of Na and Mg ions in seawater.  The date trunk fiber adsorbed maximum Na and Mg ions on 100 µm fiber size. The pH significantly changed the percentage of adsorption of ions on date palm trunk fiber and maximum adsorption of Na and Mg ions were achieved on pH-7. The date pa

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Babu, J. S. S., K. P. Nair, and C. G. Kang. "Hybrid Preform for Metal Matrix Composites: Processing and Characterization." Solid State Phenomena 116-117 (October 2006): 421–24. http://dx.doi.org/10.4028/www.scientific.net/ssp.116-117.421.

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Metal matrix composites (MMCs) have been used for aviation, automobile and nuclear application due to their highlight properties such as superior strength, high specific stiffness, wear, and creep resistance at elevated temperature. For developing MMCs by liquid infiltration, preform will be required. In this research paper, developed a hybrid fiber preform and investigated their microstructure properties. Graphite nano fiber (GNF) and Alumina fiber were used for fabrication of the preform. The main objective of developing a preform is i) attainment of uniform distribution of reinforcement ii)

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45

Reyes-Lopéz, Simón Y., Bonifacio Alvarado-Tenorio та Ángel Romo-Uribe. "Polycaprolactone/α-Alumina and Hydroxyapatite-based Micro- and Nano- Structured Hybrid Fibers". MRS Proceedings 1569 (2013): 185–91. http://dx.doi.org/10.1557/opl.2013.798.

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ABSTRACTThe micro- and nanostructured phase behavior of non-woven hybrid electrospun fibers of Polycaprolactone (PCL-f), Polycaprolactone/α-Alumina (PCL/AA) and Polycaprolactone/Hydroxyapatite (PCL/HA) were elucidated. Nanoparticles of Hydroxyapatite featured 7-20 nm while α-Alumina was 500 nm in average size. Analysis by Transmission Electron Microscopy (TEM), Small-Angle Light Scattering (SALS), Polarized Optical Microscopy (POM) and Differential Scanning Calorimetry (DSC) enabled us to suggest a simple structural model for the series of hybrid fibers. PCL with a molecular weight of 70,000 g

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Arjuna, Andi, Selva Natsir, Andi Amelia Khumaerah, and Risfah Yulianty. "Modifikasi Serat Limbah Kubis Menjadi Nanokristalin Selulosa Melalui Metode Hidrolisis Asam." Jurnal Farmasi Galenika (Galenika Journal of Pharmacy) (e-Journal) 4, no. 2 (2018): 119–25. http://dx.doi.org/10.22487/j24428744.2018.v4.i2.11093.

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As one of vegetable plants in South Sulawesi, cabbage (Brassica oleracea L.) crops has generated cellulose fibers biomass which is potentially modified into nano-crystalline cellulose, a valuable material in the pharmaceutical formula. Therefore, this study aims to manipulate the natural cellulose fibers of cabbage biomass through acid hydrolysis method within product preliminary evaluation through FT-IR and XRD. The fibers were modified through the bleaching process produce micro crystalline cellulose, which was then hydrolyzed with 65% sulfuric acid to obtain nanocrystalline cellulose. The p

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47

UM, DUGAN, BAHRAM ASIABANPOUR, and JESUS JIMENEZ. "A FLEXIBLE MICRO MANUFACTURING SYSTEM FOR MICRO PARTS ASSEMBLY VIA MICRO VISUAL SENSING AND EAP BASED GRASPING." Journal of Advanced Manufacturing Systems 08, no. 02 (2009): 137–52. http://dx.doi.org/10.1142/s0219686709001730.

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In this paper, we developed a flexible micro workcell for micro part assembly and bio materials handling. The primary focus of the research is on the flexible manufacturing system that can handle parts in the size of 100 to 500 μm for various applications. Flexibility in micro assembly, though important, has not been examined in depth due to the complexity of micro operations of small parts. Micro gears, micro glass fibers or fragile bio materials require flexibility in gripping and haptic feedback control for further operation. To that end, we design grippers made out of electro active polyme

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V, Lavanya K., Venkatesh, and YogavardhanSwamy G. N. "The Influence of Reinforcement Size and Shape on the Mechanical Properties of Composites." International Journal for Research in Applied Science and Engineering Technology 12, no. 12 (2024): 1270–83. https://doi.org/10.22214/ijraset.2024.66021.

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Abstract: In the present work the effects of size and shape of reinforcements on the mechanical properties of composite material is discussed in detail Since reinforcements have a dominant control on mechanical properties such as, tensile strength, stiffness, toughness and fracture resistance. This work comprehensively assesses how the size and the shape of reinforcements, which can be nano, micro and macroscopic, and can be fibers, particles, or platelets, affect the behaviour of the resulting composites. Both numerical and experimental approaches were used to investigate the interface adhesi

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Xu, Ping, Dong Han, Jian-Xin Yu, Yu-Hao Cui, and Min-Xia Zhang. "Experimental study on high temperature mechanical properties of aluminate cement mortar mixed with fiber." Thermal Science 25, no. 6 Part B (2021): 4441–48. http://dx.doi.org/10.2298/tsci2106441x.

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The aim of the present paper is to study the mechanical properties of aluminate cement mortar mixed with different chopped fibers under high temperature. The specimens with a size of 40 mm ? 40 mm ? 160 mm is treated at various tempera?tures of 25?C, 200?C, 400?C, 600?C, and 800?C. The compressive and flexural strength of the aluminate cement mortar and its micro-structures are tested. The results show that the chopped steel fibers and basalt fibers are effective in improv?ing the high temperature mechanical properties of aluminate cement mortar. When the volume fraction of chopped steel fiber

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Chen, Tuo, Yuxia Song, Shiya Zhang, and Mingyu Li. "An Optical Micro/Nano Fiber Sensor for Monitoring Respiration." Photonics 10, no. 11 (2023): 1231. http://dx.doi.org/10.3390/photonics10111231.

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In the field of clinical medicine, the real-time monitoring of carbon dioxide (CO2) gas exhaled by the human body is of great significance. At present, the detection devices on the market mainly work by sucking a small amount of gas from the nasal cavity into the detection device, and they present some problems such as overly long sampling tubes, easy blockage or distortion, and an abnormal gas dispersion. In this paper, a micro/nano optical fiber sensor that can directly detect respiration is proposed and is characterized by the relative change in CO2 concentration. The measurement is achieve

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