Fabrication of ALF3-Based Glass Fibers

1989 ◽  
Vol 172 ◽  
Author(s):  
Mahmoud R. Shahriari ◽  
Tariq Iqbal ◽  
Paul R. Foy ◽  
Steve J. Saggese ◽  
G. H. Sigel

AbstractSeveral glass systems based on AIF3 have been synthesized and fabricated into preforms by controlled melting and rotational casting. High optical quality preforms have been drawn into fibers using a specially modified drawing facility. The drawing tower is enclosed with a vertical glove box in which the levels of both moisture and oxygen are kept below 1 ppm during the drawing. The AIF3 -based fibers have shown dramatically superior chemical durability relative to the ZrF4 -based glass fibers. Selected optical, mechanical and thermal properties of these fibers will be presented. AIF3 -based glass fibers offer interesting opportunities for short range applications in the 2–4 micron region of the infrared such as sensing, remote spectroscopy and laser power delivery.

1991 ◽  
Vol 6 (2) ◽  
pp. 401-406 ◽  
Author(s):  
Tariq Iqbal ◽  
Mahmoud R. Shahriari ◽  
Glenn Merberg ◽  
George H. Sigel

Fluorozirconate glasses are stable with respect to devitrification but have poor chemical durability and only fair mechanical strength. AlF3-based glasses with improved chemical durability and enhanced mechanical strength are reported here. The optical, mechanical, and thermal properties of these glasses are contrasted to the more familiar ZBLAN composition. The infrared edge of these glasses lies at shorter wavelengths than ZrF4-based glasses, but aluminum fluoride glasses offer some interesting opportunities for short-range IR fiber applications such as sensing, remote spectroscopy, and laser power propagation.


2018 ◽  
Vol 31 (6) ◽  
pp. 719-732 ◽  
Author(s):  
Abdeldjalil Zegaoui ◽  
Mehdi Derradji ◽  
Abdul Qadeer Dayo ◽  
Aboubakr Medjahed ◽  
Hui-yan Zhang ◽  
...  

The investigation and design of new polymeric materials with an astonishing combination of properties are nowadays of great importance to facilitate the manufacturing process of high-quality products intended to be utilized in different applications and technical fields. For this intent, novel high-performance blend composites composed of the cyanate ester/benzoxazine resin blend reinforced by different proportions of silane-surface modified Kevlar and glass fibers were successfully fabricated by a compression molding technique and characterized by different experimental tests. The mechanical test results revealed that the bending and impact strength properties were considerably improved when increasing the amount of the hybrid fibers. The studied materials also presented excellent thermal stabilities as compared to the unfilled blend’s properties. With respect to the properties of the reinforcing systems, these improvements seen in either the mechanical or thermal properties could be due to the good dispersion as well as excellent adhesion of the reinforcing fibers inside the resin matrix, which were further evidenced by the Fourier transform infrared spectroscopy and scanning electron microscopy results. Consequently, the improved mechanical and thermal properties promote the use of the fabricated hybrid composites in domestic and industrial applications requiring functional materials with advanced properties for aerospace and military applications.


RSC Advances ◽  
2016 ◽  
Vol 6 (87) ◽  
pp. 84187-84193 ◽  
Author(s):  
Ying Wang ◽  
Hui Li ◽  
Xiaodan Wang ◽  
Hong Lei ◽  
Jichuan Huo

In order to fabricate epoxy-based glass fiber composites with superior mechanical and thermal properties, starch was chemically modified by E-51 epoxy resin, as a sizing for glass fibers.


1993 ◽  
Vol 62 (7) ◽  
pp. 669-671 ◽  
Author(s):  
Shunichi Sato ◽  
Kaoru Igarashi ◽  
Manabu Taniwaki ◽  
Kenichi Tanimoto ◽  
Yutaka Kikuchi

2020 ◽  
Vol 4 (3) ◽  
pp. 119 ◽  
Author(s):  
Anjum Saleem ◽  
Luisa Medina ◽  
Mikael Skrifvars

Natural fibers, such as kenaf, hemp, and flax, also known as bast fibers, offer several benefits such as low density, carbon dioxide neutrality, and less dependence on petroleum sources. Their function as reinforcement in polymer composites offers a great potential to replace a segment of the glass fiber-reinforced polymer composites, especially in automotive components. Despite their promising benefits, they cannot meet the structural and durability demands of automobile parts because of their poor mechanical properties compared to glass fibers. The focus of this research work was the improvement of the mechanical property profile of the bast fiber reinforced polypropylene composites by hybridization with natural high-performance basalt fibers and the influence of basalt fibers coating and polymer modification at the mechanical and thermal properties of the composites. The specific tensile strength of the composite with polymer tailored coating was 39% and the flexural strength was 44% higher than the composite with epoxy-based basalt fibers. The mechanical performance was even better when the bast/basalt hybridization was done in maleic anhydride modified polymer. This led to the conclusion that basalt fibers sizing and polymer modification are the deciding factors in defining the optimal mechanical performance of the composites by influencing the fiber-matrix interaction. The composites were analyzed for their mechanical, thermal, and morphological properties. The comparison of bast/basalt hybrid composite with bast/glass fibers hybrid composite showed a 32% higher specific flexural and tensile strength of the basalt hybrid composite, supporting the concept of basalt fibers as a natural alternative of the glass fibers.


2019 ◽  
Vol 20 (4) ◽  
pp. 811-822 ◽  
Author(s):  
Abdeldjalil Zegaoui ◽  
Mehdi Derradji ◽  
Wan-an Cai ◽  
Wen-bin Liu ◽  
Abdul Qadeer Dayo ◽  
...  

2018 ◽  
Vol 154 ◽  
pp. 128-137 ◽  
Author(s):  
Wafa Ouarhim ◽  
Hamid Essabir ◽  
Mohammed-Ouadi Bensalah ◽  
Nadia Zari ◽  
Rachid Bouhfid ◽  
...  

1997 ◽  
Author(s):  
Albert R. Hilton, Sr. ◽  
A. R. Hilton, Jr. ◽  
James McCord ◽  
Thomas J. Loretz

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