Bibliografias temáticas / Glass fibers

Índice

  1. Artigos de revistas
  2. Teses / dissertações
  3. Livros
  4. Capítulos de livros
  5. Trabalhos de conferências
  6. Relatórios de organizações

Literatura científica selecionada sobre o tema "Glass fibers"

Autor: Grafiati
Publicado: 4 de junho de 2021
Última modificação: 1 de agosto de 2024

Crie uma referência precisa em APA, MLA, Chicago, Harvard, e outros estilos

Selecione um tipo de fonte:

Consulte a lista de atuais artigos, livros, teses, anais de congressos e outras fontes científicas relevantes para o tema "Glass fibers".

Ao lado de cada fonte na lista de referências, há um botão "Adicionar à bibliografia". Clique e geraremos automaticamente a citação bibliográfica do trabalho escolhido no estilo de citação de que você precisa: APA, MLA, Harvard, Chicago, Vancouver, etc.

Você também pode baixar o texto completo da publicação científica em formato .pdf e ler o resumo do trabalho online se estiver presente nos metadados.

Artigos de revistas sobre o assunto "Glass fibers"

1

Liu, Hao, Xi Tang Wang, Zhou Fu Wang e Bao Guo Zhang. "Effects of Al2O3 on the Structure and Properties of Calcium-Magnesium-Silicate Glass Fiber". Advanced Materials Research 450-451 (janeiro de 2012): 42–45. http://dx.doi.org/10.4028/www.scientific.net/amr.450-451.42.

Texto completo da fonte
Resumo:
Calcium-magnesium-silicate glass fiber is a kind of candidate materials for aluminosilicate ceramic fiber in high temperature resistant field. However, the large thermal shrinkage limits its rapid development and industrial application in high temperature insulation field. It has been known that the shrinkage under high temperatures is mainly affected by the structure and crystallization mechanisms of glass fibers. Thus, Al2O3 was chosen as additive in the chemical composition of glass fiber to investigate the glassy network structure, crystallization and dissolution properties of calcium-magnesium-silicate glass fiber by DTA, XRD and ICP-AES techniques. The results show that with the addition of Al2O3, the glassy network structure was strengthened and the precipitation of crystals was inhibited for heat-treated fibers. As for the dissolution properties in physiological fluids, though the weight losses, changes of pH values and leached ions concentration lowered slightly with the addition of Al2O3 for the intensified network structure, fibers still present high dissolution rates.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Zhang, H., L. Z. Liu, Z. F. Zhang, K. Q. Qiu, X. F. Pan, H. F. Zhang e Z. G. Wang. "Deformation and fracture behavior of tungsten fiber-reinforced bulk metallic glass composite subjected to transverse loading". Journal of Materials Research 21, n.º 6 (1 de junho de 2006): 1375–84. http://dx.doi.org/10.1557/jmr.2006.0169.

Texto completo da fonte
Resumo:
Deformation and fracture behavior of Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk metallic glass and its composite containing transverse tungsten fibers in compression were investigated. The monolithic metallic glass and the tungsten fiber composite specimens with aspect ratios of 2 and 1 are shown to have essentially the same ultimate strength under compression. The damage processes in the bulk metallic glass composite consisted of fiber cracking, followed by initiation of shear band in the glassy matrix mainly from the impingement of the fiber crack on the fiber/matrix interface. The site of the shear band initiation in the matrix is consistent with the prediction of finite element modeling. Evidence is present that the tungsten fiber can resist the propagation of the shear band in the glassy matrix. However, the compressive strain to failure substantially decreased in the present composite compared with the composites containing longitudinal tungsten fibers. Finally, the two composite specimens fractured in a shear mode and almost all the tungsten fibers contained cracks.
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Yang, Peng, Qian Zhou, Xiao-Yang Li, Ke-Ke Yang e Yu-Zhong Wang. "Chemical recycling of fiber-reinforced epoxy resin using a polyethylene glycol/NaOH system". Journal of Reinforced Plastics and Composites 33, n.º 22 (16 de outubro de 2014): 2106–14. http://dx.doi.org/10.1177/0731684414555745.

Texto completo da fonte
Resumo:
A polyethylene glycol/ NaOH system has been used for chemical recycling of fiber/epoxy resin composites. Solvolysis of the composites based on different fibers, i.e. two PAN-based carbon fibers (Torry T300, T700S) and two glass fibers (non-alkali glass fiber and medium-alkali glass fiber), have been compared. The solubilization degree increases with rising reaction temperature, reaction time, as well as NaOH amount. After reacting at atmospheric pressure for 4 h at 200℃ with 0.1 g NaOH/g composite, a high decomposition efficiency of 84.1–93.0% has been obtained. Scanning electron microscopy analysis shows that the two recovered carbon fibers and the non-alkali glass fiber have a texture similar to the as-received fibers, except that some residual resin adheres to the surface, while the medium-alkali glass fiber is damaged during recycling. Accordingly, the recycled carbon fibers and the non-alkali glass fiber retain 94–96% of their original strength, while the tensile strength of the recycled medium-alkali glass fiber decreases to below 90% of this value. The two carbon fibers were further characterized using X-ray photoelectron spectroscopy and X-ray diffraction. The carbon structure is slightly oxidized and the degree of graphitization of the recovered carbon fibers slightly decreases.
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Sherif, Galal, Dilyus I. Chukov, Victor V. Tcherdyntsev, Andrey A. Stepashkin, Mikhail Y. Zadorozhnyy, Yury M. Shulga e Eugene N. Kabachkov. "Surface Treatment Effect on the Mechanical and Thermal Behavior of the Glass Fabric Reinforced Polysulfone". Polymers 16, n.º 6 (21 de março de 2024): 864. http://dx.doi.org/10.3390/polym16060864.

Texto completo da fonte
Resumo:
The chemical structure of the surface of glass fibers, including silanized fibers, was studied. Highly efficient heat-resistant composites were obtained by impregnating silanized glass fiber with a polysulfone solution, and the effect of modification of the surface of glass fibers on the physical, mechanical and thermophysical properties of the composite materials was studied. As a result of the study, it was found that the fiber-to-polymer ratio of 70/30 wt.% showed the best mechanical properties for composites reinforced with pre-heat-treated and silanized glass fibers. It has been established that the chemical treatment of the glass fibers with silanes makes it possible to increase the mechanical properties by 1.5 times compared to composites reinforced with initial fibers. It was found that the use of silane coupling agents made it possible to increase the thermal stability of the composites. Mechanisms that improve the interfacial interaction between the glass fibers and the polymer matrix have been identified. It has been shown that an increase in adhesion occurs both due to the uniform distribution of the polymer on the surface of the glass fibers and due to the improved wettability of the fibers by the polymer. An interpenetrating network was formed in the interfacial region, providing a chemical bond between the functional groups on the surface of the glass fiber and the polymer matrix, which was formed as a result of treating the glass fiber surface with silanes, It has been shown that when treated with aminopropyltriethoxysilane, significant functional unprotonated amino groups NH+/NH2+ are formed on the surface of the fibers; such free amino groups, oriented in the direction from the fiber surface, form strong bonds with the matrix polymer. Based on experimental data, the chemical structure of the polymer/glass fiber interface was identified.
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Bambach, Mike R. "Direct Comparison of the Structural Compression Characteristics of Natural and Synthetic Fiber-Epoxy Composites: Flax, Jute, Hemp, Glass and Carbon Fibers". Fibers 8, n.º 10 (28 de setembro de 2020): 62. http://dx.doi.org/10.3390/fib8100062.

Texto completo da fonte
Resumo:
Recent decades have seen substantial interest in the use of natural fibers in continuous fiber reinforced composites, such as flax, jute and hemp. Considering potential applications, it is of particular interest how natural fiber composites compare to synthetic fiber composites, such as glass and carbon, and if natural fibers can replace synthetic fibers in existing applications. Many studies have made direct comparisons between natural and synthetic fiber composites via material coupon testing; however, few studies have made such direct comparisons of full structural members. This study presents compression tests of geometrically identical structural channel sections fabricated from fiber-epoxy composites of flax, jute, hemp, glass and carbon. Glass fiber composites demonstrated superior tension material coupon properties to natural fiber composites. However, for the same fiber mass, structural compression properties of natural fiber composite channels were generally equivalent to, or in some cases superior to, glass fiber composite channels. This indicates there is substantial potential for natural fibers to replace glass fibers in structural compression members. Carbon fiber composites were far superior to all other composites, indicating little potential for replacement with natural fibers.
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Akanda, Md Shahin, Md Shariful Islam, Md Ali Akbar, A. M. Sarwaruddin Chowdhury, M. A. Gafur e Md Sahab Uddin. "Thermal and Morphological Assessment of the Penta-Layered, Hybrid U-Polyester Composite Reinforced with Glass Fibers and Polypropylene". Advances in Materials Science and Engineering 2024 (18 de janeiro de 2024): 1–11. http://dx.doi.org/10.1155/2024/3911466.

Texto completo da fonte
Resumo:
The interaction between the fibers and matrix in a fiber-reinforced polymer composite material is important in figuring out its properties. The incorporation of fibers with polymers can result in composites with enhanced strength and stiffness. This study aims to investigate the thermal and morphological characteristics of hybrid u-polyester composites reinforced with glass fibers and polypropylene. The fabrication of composite specimens was conducted through a straightforward cold press method. The compositions of the composites were held constant, except for the orientation of the glass fibers and polypropylene. In this study, the TG/DTG technique was used to analyze the thermal characteristics of the composites. In addition, transverse thermal conductivity was measured using the ASTM E1530 method. The test results showed that the composite reinforced with glass fibers exhibited the lowest weight loss and minimal thermal conductivity among all the samples, followed by the hybrid composite. Based on the TGA curves of the samples, the matrix experienced a weight loss of 9.7% at a temperature of 300°C, which reduced to 2.6% and 2.1% for hybrid composites and glass fiber-reinforced composites, respectively. DTG curves for composites demonstrate that the hybrid and fiber-reinforced composites degraded at rates of 0.64 mg/min and 0.36 mg/min, respectively, at 392.3°C and 395.7°C. Moreover, transverse thermal conductivity of the composite which consists of five-glass-fibered layers shows a minimal thermal conductivity of 0.05 W/m·K. The morphological properties were also investigated using scanning electron microscopy (SEM) and Fourier-transform infrared spectroscopy (FTIR). The findings from SEM and FTIR showed that a higher proportion of glass fibers led to a more oriented composite structure, demonstrating enhanced crosslinking between fibers and polyester. Therefore, the insights of this study can be used to improve the performance of glass fibers and polypropylene hybrid-laminated composites intended for high-temperature applications.
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Kang, Seunggu, Hongy Lin, Delbert E. Day e James O. Stoffer. "Optically Transparent Polymethyl Methacrylate Composites made with Glass Fibers of Varying Refractive Index". Journal of Materials Research 12, n.º 4 (abril de 1997): 1091–101. http://dx.doi.org/10.1557/jmr.1997.0152.

Texto completo da fonte
Resumo:
The dependence of the optical and mechanical properties of optically transparent polymethyl methacrylate (PMMA) composites on the annealing temperature of BK10 glass fibers was investigated. Annealing was used to modify the refractive index (R.I.) of the glass fiber so that it would more closely match that of PMMA. Annealing increased the refractive index of the fibers and narrowed the distribution of refractive index of the fibers, but lowered their mechanical strength so the mechanical properties of composites reinforced with annealed fibers were not as good as for composites containing as-pulled (chilled) glass fibers. The refractive index of as-pulled 17.1 μm diameter fibers (R.I. = 1.4907) increased to 1.4918 and 1.4948 after annealing at 350 °C to 500 °C for 1 h or 0.5 h, respectively. The refractive index of glass fibers annealed at 400 °C/1 h best matched that of PMMA at 589.3 nm and 25 °C, so the composite reinforced with those fibers had the highest optical transmission. Because annealed glass fibers had a more uniform refractive index than unannealed fibers, the composites made with annealed fibers had a higher optical transmission. The mechanical strength of annealed fiber/PMMA composites decreased as the fiber annealing temperature increased. A composite containing fibers annealed at 450 °C/1 h had a tensile strength 26% lower than that of a composite made with as-pulled fibers, but 73% higher than that for unreinforced PMMA. This decrease was avoided by treating annealed fibers with HF. Composites made with annealed and HF (10 vol. %)-treated (for 30 s) glass fibers had a tensile strength (∼200 MPa) equivalent to that of the composites made with as-pulled fibers. However, as the treatment time in HF increased, the tensile strength of the composites decreased because of a significant reduction in diameter of the glass fiber which reduced the volume percent fiber in the composite.
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Mishra, Neelam, Ubaid Ahmad Khan, Anshuman Srivastava e Nidhi Asthana. "Effect of the Glass Fiber Orientation on Mechanical Performance of Epoxy based Composites". Prabha Materials Science Letters 3, n.º 2 (1 de setembro de 2024): 175–90. http://dx.doi.org/10.33889/pmsl.2024.3.2.011.

Texto completo da fonte
Resumo:
Composites are one of the most advanced and adaptable engineering materials. The strength of any composite depends upon volume/weight fraction of reinforcement, orientation angle and other factors. The present work focuses on the determination of the mechanical properties of pure epoxy and unidirectional glass fiber reinforced epoxy. Nowadays, glass fibers are being used in several engineering applications like electronics, aviation, automobile, sport industry etc. Glass fibers are having excellent properties like high strength, flexibility, stiffness, and resistance to chemical attack. With an increase in the content of unidirectional glass fiber volume the properties of unidirectional glass Fiber Reinforcement Polymer (GFRP) composite were improved. It may be used in different forms like chopped, woven mat, short fibers and long fibers etc. Each type of glass fiber has unique properties and is used for different applications. The mechanical and thermal properties of various polymer composites reinforced with glass fibers when subjected to mechanical loading have been studied and reported.
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Vaiborisut, Napaporn, Chanittha Chunwises, Dararat Boonbundit, Sirithan Jiemsirilers e Apirat Theerapapvisetpong. "Effect of the Addition of ZrSiO4 on Alkali-Resistance and Liquidus Temperature of Basaltic Glass". Key Engineering Materials 766 (abril de 2018): 145–50. http://dx.doi.org/10.4028/www.scientific.net/kem.766.145.

Texto completo da fonte
Resumo:
Basalt fiber has been used as a reinforced material in cement-based materials because it has higher mechanical strength and cheaper than common silicate based glass-fibers. However, silicate-based glass fibers have low alkali resistance especially in cement matrix composite. In this work, we studied the improvement of alkali resistance by addition of zirconium silicate (ZrSiO4) in original basalt glass composition. The batch of basalt glass with additional ZrSiO4 contents of 0.00, 2.50, 5.00, 7.50 and 10.00 wt% were melted at 1500 °C. The liquidus temperature (TL) is important in for the fiber glass manufacturing. It need to formulate glass composition which requires a lower melting temperature and is crystallization resistant. TL as a function of composition is usually determined experimentally. In this study, glassy phase was determined by X-ray Diffraction (XRD). The glass transition temperature (Tg), the crystallization temperature (Tc) and TL were analyzed by Differential Thermal Analysis (DTA). The results found that the addition of ZrSiO4 in a basalt glass batch increased Tg while Tc of each sample was closed to original basalt fiber. Moreover, the alkali resistance of these glasses increased with an increasing of ZrSiO4 content. However, excessive ZrSiO4 contents (7.50 and 10.00 wt%) resulted in crystallization of ZrO2 which separated from glassy phase.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Safaei, Shouresh. "E-glass Coated Fibers in Novel Composite System for Constructional Applications". International Journal of Science and Engineering Applications 10, n.º 8 (agosto de 2021): 111–13. http://dx.doi.org/10.7753/ijsea1008.1002.

Texto completo da fonte
Resumo:
Concrete is one of the most applicable materials in construction. But it needs to reinforce with several reinforcement materials especially high performance fibers such as glass fibers to improve its properties. Among glass fibers, E-glass fiber has lower price but degrade in alkaline cementitious matrix. In this investigation for prohibition of E-glass fibers degradation along with better adhesion of E-glass fibers to cementitious matrix a doubled layer composite coating has been used. The first layer is a polysiloxane which it's permeability to water is too low so prevent alkali attack on E-glass fiber. The second layer is polyvinyl acetate (PVAC) having polar groups of acetate, produce calcium acetate in cementitious matrix, which stick firmly to cement. PVAC in alkaline solution can produce polyvinyl alcohol (PVA) which is again sticky to cement. This composite coating applied on E-glass fibers and used to reinforce concrete. The durability of coated fibers was investigated by alkaline stability test and SEM images. Meanwhile for studying adhesion of fibers to concrete pull out characteristics of coated fibers been investigated and compared with bare E-glass reinforced concrete.
Estilos ABNT, Harvard, Vancouver, APA, etc.
Mais fontes

Teses / dissertações sobre o assunto "Glass fibers"

1

Huang, Jianzhong. "Structural relaxation in thin glass fibers /". The Ohio State University, 1992. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487780393264909.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Holmberg, Patrik. "Laser processing of Silica based glass". Doctoral thesis, KTH, Laserfysik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-173929.

Texto completo da fonte
Resumo:
The main topic of this thesis work is photosensitivity and photo-structuring of optical fibers and bulk glass. Although research in the field of photosensitivity in glass and optical fibers has been ongoing for more than three decades, the underlying mechanisms are still not well understood. The objective was to gain a better understanding of the photo-response by studying photosensitivity from a thermodynamic perspective, as opposed to established research focusing on point defects and structural changes, and strain and stress in optical fibers. Optical fibers was mainly used for experimental studies for two reasons; first, photosensitivity in fibers is more pronounced and more elusive compared to its bulk counterpart, and secondly, fibers provide a simplified structure to study as they experimentally can be seen as one-dimensional.Initially, ablation experiments on bulk glass were performed using picosecond infrared pulses. With a design cross section of 40x40 μm, straight channels were fabricated on the top (facing incident light) and bottom side of the sample and the resulting geometries were analyzed. The results show a higher sensitivity to experimental parameters for bottom side ablation which was ascribed to material incubation effects. Moreover, on the top side, the resulting geometry has a V-shape, independent of experimental parameters, related to the numerical aperture of the focusing lens, which was ascribed to shadowing effects.After this work, the focus shifted towards optical fibers, UV-induced fiber Bragg gratings (FBGs) and thermal processing with conventional oven and with a CO2 laser as a source of radiant heat.First, a system for CO2 laser heating of optical fibers was constructed. For measuring the temperature of the processed fibers, a special type of FBG with high temperature stability, referred to as "Chemical Composition Grating" (CCG) was used. A thorough characterization and temperature calibration was performed and the results show the temperature dynamics with a temporal resolution of less than one millisecond. The temperature profile of the fiber and the laser beam intensity profile could be measured with a spatial resolution limited by the grating length and diameter of the fiber. Temperatures as high as ~ 1750 °C could be measured with corresponding heating and cooling rates of 10.500 K/s and 6.500 K/s.Subsequently, a thorough investigation of annealing and thermal regeneration of FBGs in standard telecommunication fibers was performed. The results show that thermal grating regeneration involves several mechanisms. For strong regeneration, an optimum annealing temperature near 900 C was found. Two different activation energies could be extracted from an Arrhenius of index modulation and Braggv iwavelength, having a crossing point also around 900 °C, indication a balance of two opposing mechanisms.Finally, the thermal dynamics and spectral evolution during formation of long period fiber gratings (LPGs) were investigated. The gratings were fabricated using the CO2 laser system by periodically grooving the fibers by thermal ablation. Transmission losses were reduced by carefully selecting the proper processing conditions. These parameters were identified by mapping groove depth and transmission loss to laser intensity and exposure time.
Huvudtemana i denna avhandling är fotokänslighet och fotostrukturering av optiska fibrer och bulk glas. Trots att forskning inom fotokänslighet i glas och optiska fibrer har pågått under mer än tre decennier är de bakomliggande mekanismerna ännu inte klarlagda. Syftet var att få en bättre förståelse för fotoresponsen genom att studera fotokäsligheten ur ett termodynamiskt perspektiv, i motsats till etablerad forskning med fokus på punktdefekter och strukturförändringar, samt mekaniska spännings effekter i optiska fibrer. Optiska fibrer användes för flertalet av de experimentella studierna av två skäl; för det första är fotokänsligheten i fibrer större och dessutom vet man mindre om bakomliggande mekanismer jämfört med motsvarande bulk glas, och för det andra kan fibrer vara enklare att studera eftersom de experimentellt kan ses som en endimensionell struktur.Inledningsvis utfördes ablaherings experiment på bulk glas med en infraröd laser med pikosekund pulser. Raka kanaler med ett designtvärsnitt på 40x40 μm tillverkades på ovansidan (mot infallande ljus) och bottensidan av provet och de resulterande geometrierna analyserades. Resultaten visar en högre känslighet för variationer i experimentella parametrar vid ablahering på undersidan vilket kan förklaras av inkubations effekter i materialet. Dessutom är den resulterande geometrin på ovansidan V-formad, oavsett experimentella parametrar, vilket kunde relateras till den numeriska aperturen hos den fokuserande linsen, vilket förklaras av skuggningseffekter.Efter detta arbete flyttades fokus mot optiska fibrer, UV inducerade fiber Bragg gitter (FBG), och termisk bearbetning med konventionell ugn samt även med en CO2-laser som källa för strålningsvärme.Först konstruerades ett system för CO2-laservärmning av fibrer. För mätning av temperaturen hos bearbetade fibrer användes en speciell sorts FBG med hög temperaturstabilitet, kallade ”Chemical Composition Gratings” (CCG). En grundlig karaktärisering och temperaturkalibrering utfördes och temperaturdynamiken mättes med en tidsupplösning på under en millisekund. Temperaturprofilen i fibern, och laserns strålprofil, kunde mätas med en spatiell upplösning begränsad av gitterlängden och fiberns diameter. Temperaturer upp till ~1750 °C, vilket är högre än mjukpunktstemperaturen, kunde mätas med korresponderande uppvärmnings- och avsvalningshastighet på 10.500 K/s och 6.500 K/s.Därefter gjordes en omfattande undersökning av värmebearbetning och termisk regenerering av FBG:er i telekomfiber. Resultaten visar att termisk gitter-regenerering aktiveras av flera olika mekanismer. Värmebearbetning vid en temperatur omkring 900 °C resulterade i starka gitter efter en regenerering vid en temperatur på 1100 °C. Två olika aktiveringsenergier kunde extraheras från en Arrhenius plot avseende brytningsindexmodulation och Braggvåglängd, med en skärningspunkt tillika runt 900 °C, vilket indikerar en avvägning mellan två motverkande mekanismer vid denna temperatur.Slutligen undersöktes temperaturdynamiken och de spektrala egenskaperna under tillverkning av långperiodiga fibergitter (LPG). Gittren tillverkades med CO2-vi iilasersystemet genom att skapa en periodisk urgröpning medelst termisk ablahering. Transmissionsförluster kunde reduceras med noggrant valda processparametrar. Dessa parametrar identifierades genom mätningar av ablaherat djup och transmissionsförlust som funktion av laserintensitet och exponeringstid.

QC 20150924

Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Shi, Jiawanjun. "Properties of alkaline-resistant calcium-iron-phosphate glasses". Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.umr.edu/thesis/pdf/Shi_09007dcc8043f8f6.pdf.

Texto completo da fonte
Resumo:
Thesis (M.S.)--University of Missouri--Rolla, 2007.
Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed March 25, 2008) Includes bibliographical references (p. 52-54).
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Abu-Zahra, Esam. "High Strength E-Glass/CNF Fibers Nanocomposite". Cleveland State University / OhioLINK, 2007. http://rave.ohiolink.edu/etdc/view?acc_num=csu1198878550.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Jin, Kun. "Processing characteristics and properites [sic] of glass fiber reinforced composites from post consumer carpets". Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04062004-164643/unrestricted/jin%5Fkun%5F200312%5Fms.pdf.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Kuo, Chai-Pei. "Characterization of photoinduced gratings in optical glass fibers". Diss., The University of Arizona, 1988. http://hdl.handle.net/10150/184515.

Texto completo da fonte
Resumo:
The properties of photo-induced gratings in germania doped glass fibers were studied. Permanent phase gratings in a fiber core were fabricated by the mixing of two contra propagating waves. Experiments are described and results are presented which show that the strength of a photoinduced grating is strongly dependent on the writing power as well as the laser writing wavelength. A rigorous development of linear coupled mode theory for the contra propagation geometry is given and used to model the experimentally observed grating responses as a function of fine tuning frequency of probing light. Measurements have been done of the amplitude and phase response of the grating structure and compared with theoretical models of uniform and chirped gratings. The theoretically predicted negative group velocity dispersion in fiber grating was observed interferometrically and described in detail. The nonlinear coupled mode theory has been fully implemented in a computer program and some numerical results are given in the second part of this thesis. The dynamics of a pulse propagating in the fiber grating is simulated and the results show its dependence on pulse energy, frequency detuning, and the type of grating geometry. A limitation is found in the dispersion property of a constant amplitude fiber grating so that the pulse compression ratio and the width of a compressible pulse is strictly limited to ≅250 picoseconds.
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Cheung, Wai-lam, e 張惠林. "The interfacial properties of glass fibre reinforced polypropylene". Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1990. http://hub.hku.hk/bib/B31231792.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Cheung, Wai-lam. "The interfacial properties of glass fibre reinforced polypropylene /". [Hong Kong] : University of Hong Kong, 1990. http://sunzi.lib.hku.hk/hkuto/record.jsp?B12718634.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Kim, Jong-Kook. "Investigation of High-Nonlinearity Glass Fibers for Potential Applications in Ultrafast Nonlinear Fiber Devices". Diss., Virginia Tech, 2005. http://hdl.handle.net/10919/28569.

Texto completo da fonte
Resumo:
Nonlinear fiber devices have been attracting considerable attention in recent years, due to their inherent ultrafast response time and potential applications in optical communication systems. They usually require long fibers to generate sufficient nonlinear phase shifts, since nonlinearities of conventional silica-core silica-clad fibers are too low. These long devices, however, cause the serious problems of pulse walk-off, pulse broadening, and polarization fluctuation which are major limiting factors for response time, switching bandwidth, and maximum transmittable bit-rate. Therefore, short device length is indispensable for achieving ultrafast switching and higher bit-rate data transmission. To shorten the required device length, fiber nonlinearities should be increased. In this dissertation, as a way of increasing fiber nonlinearities, high-nonlinearity materials of Litharge, Bismite, Tellurite, and Chalcogenide glasses have been considered. Although they have high nonlinearities, they also have high group-velocity dispersion and high losses deteriorating the performance of nonlinear fiber devices seriously. The aim of this work is to investigate how these high-nonlinearity glasses affect the performance of nonlinear fiber devices, taking into consideration both the advantages and disadvantages. To achieve it, the critical properties of various nonlinear fiber devices constructed with the different types of high-nonlinearity glasses and different types of fibers have been evaluated. It turned out that the required device lengths of nonlinear fiber devices constructed with the high-nonlinearity glasses were significantly reduced and high group-velocity dispersions and losses could not be major problems due to the extremely short device length. As a result, it would be possible to suppress the problems of pulse walk-off, pulse broadening, and polarization fluctuation in nonlinear fiber devices by introducing high-nonlinearity glasses, thus enabling ultrafast switching and higher bit-rate data transmission. Furthermore, in this dissertation, a new scheme of wavelength-division demultiplexing based on the optical Kerr effect has been proposed for the first time. The new scheme can turn the disadvantage of the extremely high group-velocity dispersion of high-nonlinearity glasses into an advantage of wavelength-division demultiplexing. Finally, it now would be possible to greatly increase maximum transmittable bit-rate in optical communication systems by simultaneously demultiplexing optical time-division-multiplexed signals and wavelength-division-multiplexed signals with an optical Kerr effect-based demultiplexer.
Ph. D.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Groulx, Jean-Guy Joseph Carleton University Dissertation Engineering Civil and Environmental. "Investigation of wood flexural members reinforced with glass fibers". Ottawa, 1995.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
Mais fontes

Livros sobre o assunto "Glass fibers"

1

Starr, Trevor F. Glass fibre directory and databook. 2a ed. London: Chapman & Hall, 1997.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Starr, Trevor F. Glass-fibre databook. London: Chapman & Hall, 1993.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Wallenberger, Frederick T., e Paul A. Bingham. Fiberglass and glass technology: Energy-friendly compositions and applications. New York: Springer, 2010.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Wallenberger, Frederick T., e Paul A. Bingham. Fiberglass and glass technology: Energy-friendly compositions and applications. New York: Springer, 2010.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Majumbar, A. J. Glass fibre reinforced cement. Oxford: BSP Professional Books, 1991.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Williamson, G. R. Evaluation of glass fiber reinforced concrete panels for use in military construction. Champaign, Ill: US Army Corps of Engineers, Construction Engineering Research Laboratory, 1985.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Ballast, David Kent. Glass fiber reinforcement in building materials. Monticello, Ill., USA: Vance Bibliographies, 1988.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Dan, Hewak, INSPEC EMIS Group e Institution of Electrical Engineers, eds. Properties, processing and applications of glass and rare earth-doped glasses for optical fibres. London: INSPEC, 1998.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

United States. Agency for Toxic Substances and Disease Registry. Division of Toxicology. Synthetic vitreous fibers. Atlanta, GA: Dept. of Health and Human Services, Public Health Service, Agency for Toxic Substances and Disease Registry, Division of Toxicology, 2004.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Loewenstein, K. L. The manufacturing technology of continuous glass fibres. 3a ed. Amsterdam: Elsevier, 1993.

Encontre o texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
Mais fontes

Capítulos de livros sobre o assunto "Glass fibers"

1

Veit, Dieter. "Glass Fibers". In Fibers, 905–22. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-15309-9_43.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Aben, Hillar, e Claude Guillemet. "Optical Fibers and Fiber Preforms". In Photoelasticity of Glass, 216–27. Berlin, Heidelberg: Springer Berlin Heidelberg, 1993. http://dx.doi.org/10.1007/978-3-642-50071-8_13.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Dey, Subir K., e Marino Xanthos. "Glass Fibers". In Functional Fillers for Plastics, 129–47. Weinheim, FRG: Wiley-VCH Verlag GmbH & Co. KGaA, 2005. http://dx.doi.org/10.1002/3527605096.ch7.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Dey, Subir K., e Marino Xanthos. "Glass Fibers". In Functional Fillers for Plastics, 141–62. Weinheim, Germany: Wiley-VCH Verlag GmbH & Co. KGaA, 2010. http://dx.doi.org/10.1002/9783527629848.ch7.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Brückner, Volkmar. "Glass Fibers". In Elements of Optical Networking, 25–65. Wiesbaden: Springer Fachmedien Wiesbaden, 2024. http://dx.doi.org/10.1007/978-3-658-43242-3_3.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Chartier, Thierry. "Optical Fibers". In Springer Handbook of Glass, 1405–39. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-93728-1_41.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Zu, Qun, Mette Solvang e Hong Li. "Commercial Glass Fibers". In Fiberglass Science and Technology, 1–87. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72200-5_1.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Chandan, Harish C., Ronald D. Parker e David Kalish. "Fractography of Optical Fibers". In Fractography of Glass, 143–84. Boston, MA: Springer US, 1994. http://dx.doi.org/10.1007/978-1-4899-1325-8_5.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Mantelli, Andrea, Alessia Romani, Raffaella Suriano, Marinella Levi e Stefano Turri. "Additive Manufacturing of Recycled Composites". In Systemic Circular Economy Solutions for Fiber Reinforced Composites, 141–66. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-22352-5_8.

Texto completo da fonte
Resumo:
AbstractAn additive remanufacturing process for mechanically recycled glass fibers and thermally recycled carbon fibers was developed. The main purpose was to demonstrate the feasibility of an additive remanufacturing process starting from recycled glass and carbon fibers to obtain a new photo- and thermally-curable composite. 3D printable and UV-curable inks were developed and characterized for new ad-hoc UV-assisted 3D printing apparatus. Rheological behavior was investigated and optimized considering the 3D printing process, the recyclate content, and the level of dispersion in the matrix. Some requirements for the new formulations were defined. Moreover, new printing apparatuses were designed and modified to improve the remanufacturing process. Different models and geometries were defined with different printable ink formulations to test material mechanical properties and overall process quality on the final pieces. To sum up, 3D printable inks with different percentages of recycled glass fiber and carbon fiber reinforced polymers were successfully 3D printed.
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Brückner, Volkmar. "Nonlinearities in glass fibers". In Elements of Optical Networking, 156–69. Wiesbaden: Vieweg+Teubner Verlag, 2011. http://dx.doi.org/10.1007/978-3-8348-8142-7_10.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Trabalhos de conferências sobre o assunto "Glass fibers"

1

Haggans, C. W., H. Singh, W. F. Varner e J. S. Wang. "Analysis of Narrow Depressed-Cladding Fibers for Minimization of Cladding and Radiation Mode Losses in Fiber Bragg Gratings". In Bragg Gratings, Photosensitivity, and Poling in Glass Fibers and Waveguides. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/bgppf.1997.bmg.11.

Texto completo da fonte
Resumo:
Undesirable losses in highly reflective fiber Bragg gratings due to coupling to bound cladding modes or lossy radiation modes are well documented1-5. Several approaches have been proposed for reducing this coupling, including high LP01 mode confinement fibers (high numerical aperture single-mode fibers6 and two-mode fibers7), fibers with equally photosensitive core and cladding regions8, and, recently, fibers with wide depressed cladding regions5. However, the solution detailed by Komukai, et al.6 is undesirable due to mode-field mismatch losses when splicing to conventional single-mode telecommunication fibers operated at 1550 nm (e.g, Corning SMF-28) and the solution of Okude, et al.7 requires advanced fabrication techniques. Additionally, while the solutions detailed by Dong, et al.5 and Delevaque, et al.8 reduce cladding mode losses for gratings with no variation of the photoinduced index transverse to the fiber axis, it is well known that strong asymmetries in the transverse photoinduced index profile can occur in Type I9 and Type II10 gratings due to the sidewriting process. In fact, elaborate writing schemes have been proposed to reduce this asymmetry11-12. Additionally, in practice, small tilts of the grating fringe planes can be introduced during fabrication due to mask-fiber misalignment. It is demonstrated in this paper that the solutions detailed by Dong, et al.5 and Delevaque, et al.8 are not optimum for azimuthally asymmetric transverse photoinduced index distributions, and a new narrow depressed cladding fiber design that has superior loss suppression characteristics for moderate grating asymmetries is presented.
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Saad, Mohammed. "Fluoride Glass Fibers". In Specialty Optical Fibers. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/sof.2011.somc5.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Righini, Giancarlo C. "Progress in glass optoelectronics". In Fibers '92, editado por Ka-Kha Wong. SPIE, 1993. http://dx.doi.org/10.1117/12.141872.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Laperle, Pierre, Alain Chandonnet e Réal Vallée. "Photoinduced absorption and photobleaching in thulium-doped fluorozirconate fibers". In Photosensitivity and Quadratic Nonlinearity in Glass Waveguides. Washington, D.C.: Optica Publishing Group, 1995. http://dx.doi.org/10.1364/pqn.1995.pmd.5.

Texto completo da fonte
Resumo:
Over the past few years, thulium-doped fluorozirconate fibers have been studied for application as blue fiber lasers. Blue upconversion fiber lasers at 480 nm [1] and 455 nm [2] in a thulium-doped fluorozirconate fiber have been demonstrated at room temperature. Recently, a potentially important application of these fibers for amplification near 800 nm in the first telecommunication window has been reviewed [3]. In our work, we have observed a strong photodarkening of thulium-doped fluorozirconate fibers when pumped at 1.12 μm [4]. A similar behavior was reported in thulium-doped aluminosilicate fibers exposed to 1064 nm light [5]. We have also observed that it is possible to bleach a fluorozirconate fiber by exposing it to 488 nm radiation. These results have stimulated the present study on the formation of photoinduced absorption which may limit the efficiency of blue fiber lasers and other devices using thulium-doped fluorozirconate fibers.
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Saad, Mohammed. "Fluoride glass fibers". In 2011 IEEE Photonics Society Summer Topical Meeting Series. IEEE, 2011. http://dx.doi.org/10.1109/phosst.2011.6000055.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

Drexhage, Martin G. "Infrared glass fibers". In OE/LASE '90, 14-19 Jan., Los Angeles, CA, editado por James A. Harrington e Abraham Katzir. SPIE, 1990. http://dx.doi.org/10.1117/12.18622.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

Wang, Ji. "Glass for optical fibers". In Specialty Optical Fibers. Washington, D.C.: OSA, 2011. http://dx.doi.org/10.1364/sof.2011.somc1.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Lemaire, Paul J., e Turan Erdogan. "Hydrogen-enhanced UV photosensitivity of optical fibers: Mechanisms and reliability". In Photosensitivity and Quadratic Nonlinearity in Glass Waveguides. Washington, D.C.: Optica Publishing Group, 1995. http://dx.doi.org/10.1364/pqn.1995.sua.4.

Texto completo da fonte
Resumo:
The use of optical fiber gratings1 has rapidly increased in recent years, due to the invention of the side-writing technique,2 and to the availability of fibers with enhanced photosensitivity. Enhanced photosensitivity has been achieved in various ways, most of which serve to increase the concentration of “native” defects in the fibers.3,4,5,6 More recently the UV photosensitivity of optical fibers has been greatly enhanced by “loading” the fibers with molecular H2 or D2 at high pressure.7 Subsequent exposure of the sensitized fiber to intense UV light at wavelengths less than about 248nm causes the physically dissolved H2 to react with cation dopants resulting in the formation of defects which cause large increases in the refractive index of the glass. This high pressure H2 sensitization technique has been used to great advantage in the UV writing of gratings in optical fibers, and has also been used to sensitize planar waveguides for the UV patterning of waveguide devices,8 and in bulk glasses for demonstration of holographic data storage.9 The UV induced index changes can readily exceed the initial core-to- cladding index difference in GeO2 doped fibers, permitting the UV writing of strong gratings in virtually any GeO2 doped optical fiber. The enhanced photosensitivity is sufficient to allow strong gratings to be written in several minutes using pulsed laser systems (~10-30Hz) at typical irradiances of several 100's mJ/cm2. For instance, in standard single mode fiber (3.5% GeO2) index changes of Δn=5x10-3 can be easily achieved and Δn's of 0.011 have been attained with longer exposures. Recent results have shown that H2 sensitization can also be used to advantage in P2O5 doped waveguides and fibers, either by using 193nm excimer irradiation10 or by using simultaneous heating and UV exposure at 248nm.11 One advantage of using H2 sensitization is that any existing fiber (that is either Ge or P doped) can be sensitized after it has been drawn and coated. Hydrogen molecules readily diffuse through polymer coatings and silica claddings at low temperatures, allowing the loading to be done at temperatures as low as 22-75°C, without degradation of polymer coatings. Figure 1 shows the transmission spectrum for a strong grating written in a standard (3.5% GeO2) single mode fiber that was H2 sensitized with 3.3% H2.
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Chen, J. Y., S. Iraj Najafi e Seppo Honkanen. "Polymer-glass-waveguide all-optical switches". In Fibers '92, editado por Ka-Kha Wong. SPIE, 1993. http://dx.doi.org/10.1117/12.141905.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

Jiang, Shibin. "2 Micron Fiber Lasers Using Silicate Glass Fibers". In Specialty Optical Fibers. Washington, D.C.: OSA, 2014. http://dx.doi.org/10.1364/sof.2014.sotu2b.1.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.

Relatórios de organizações sobre o assunto "Glass fibers"

1

Smith, W. L., e T. A. Michalske. Inert strength of pristine silica glass fibers. Office of Scientific and Technical Information (OSTI), novembro de 1993. http://dx.doi.org/10.2172/10110576.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
2

Boncek, Raymond K. Development of CdS-Doped Glass Optical Fibers for All-Optical Switching. Fort Belvoir, VA: Defense Technical Information Center, fevereiro de 1997. http://dx.doi.org/10.21236/ada323630.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
3

Mariano Velez. High-Strength / High Alkaline Resistant Fe-Phosphate Glass Fibers as Concrete Reinforcement. Office of Scientific and Technical Information (OSTI), março de 2008. http://dx.doi.org/10.2172/926221.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
4

Carpenter, Robert L., e Cody L. Wilson. The Inhalation Toxicity of Glass Fibers -A Review of the Scientific Literature. Fort Belvoir, VA: Defense Technical Information Center, outubro de 1999. http://dx.doi.org/10.21236/ada389271.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
5

Smith, W. L., T. A. Michalske e R. R. Rye. The deposition of boron nitride and carbon films on silica glass fibers. Office of Scientific and Technical Information (OSTI), novembro de 1993. http://dx.doi.org/10.2172/10110580.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
6

J.F. McClelland e R.W. Jones. On-Line Sensor Systems for Monitoring the Cure of Coatings on Glass Optical Fibers and Assemblies. Office of Scientific and Technical Information (OSTI), outubro de 2003. http://dx.doi.org/10.2172/832891.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
7

McAdams, J. Investigation of leaks in fiberglass-reinforced pressure vessels by direct observation of hollow fibers in glass cloth. Office of Scientific and Technical Information (OSTI), janeiro de 1988. http://dx.doi.org/10.2172/5181172.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
8

Smith, W. L. Automated glass fiber drawing. Office of Scientific and Technical Information (OSTI), setembro de 1989. http://dx.doi.org/10.2172/5524774.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
9

Jones, R. W., e J. F. McClelland. On-line Sensor System fro Monitoring the Cure of Coatings on Glass Optical Fibers. Phase II: Application of the Sensor System to On-line Molecular Analysis Needs in Other Industries of the Future. Office of Scientific and Technical Information (OSTI), setembro de 2005. http://dx.doi.org/10.2172/882997.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
10

none,. Glass and Fiber Glass Footprint, December 2010 (MECS 2006). Office of Scientific and Technical Information (OSTI), junho de 2010. http://dx.doi.org/10.2172/1218646.

Texto completo da fonte
Estilos ABNT, Harvard, Vancouver, APA, etc.
Você também pode estar interessado nas extensas listas de trabalhos sobre o assunto "Glass fibers":
Artigos de revistas Teses / dissertações Livros
Oferecemos descontos em todos os planos premium para autores cujas obras estão incluídas em seleções literárias temáticas. Contate-nos para obter um código promocional único!

Vá para a bibliografia