scholarly journals Investigation of oversized channels in tubular fibre drawing

2021 ◽  
Vol 11 (3) ◽  
pp. 905
Author(s):  
Michael J. Chen ◽  
Yvonne M. Stokes ◽  
Peter Buchak ◽  
Darren G. Crowdy ◽  
Herbert T. C. Foo ◽  
...  
Keyword(s):  
Fibre Drawing

Pressure Effects on Structured Optical Fibre Drawing by Modified Single-Capillary Modelling

2021 ◽  
Vol 63 ◽  
pp. 102528
Author(s):  
Ghazal Tafti ◽  
John Canning ◽  
Shuai Wang ◽  
Yanhua Luo ◽  
Kevin Cook ◽  
...  
Keyword(s):  
Optical Fibre ◽  
Pressure Effects ◽  
Fibre Drawing

scholarly journals Metamaterials Fabricated by Fibre Drawing

2018 ◽  
Author(s):  
S. Fleming ◽  
A. Stefani ◽  
J. Hayashi ◽  
B. Kuhlmey
Keyword(s):  
Fibre Drawing

Length-varying computer-controlled fibre drawing

1994 ◽  
Vol 5 (11) ◽  
pp. 1370-1374 ◽  
Author(s):  
V A Bogatyrjov ◽  
M M Bubnov ◽  
S L Semenov ◽  
A A Sysoliatin
Keyword(s):  
Computer Controlled ◽  
Fibre Drawing

scholarly journals Effect of boron oxide addition on fibre drawing, mechanical properties and dissolution behaviour of phosphate-based glass fibres with fixed 40, 45 and 50 mol% P2O5

2014 ◽  
Vol 29 (5) ◽  
pp. 639-653 ◽  
Author(s):  
Nusrat Sharmin ◽  
Andrew J Parsons ◽  
Chris D Rudd ◽  
Ifty Ahmed
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Tensile Modulus ◽  
Glass Fibres ◽  
Oxide Addition ◽  
System P ◽  
Dissolution Behaviour ◽  
Continuous Manufacture ◽  
Phosphate Buffered Saline ◽  
Fibre Drawing

Previous studies investigating manufacture of phosphate-based glass fibres from glasses fixed with P2O5 content less than 50 mol% showed that continuous manufacture without breakage was very difficult. In this study, nine phosphate-based glass formulations from the system P2O5-CaO-Na2O-MgO-B2O3 were prepared with P2O5 contents fixed at 40, 45 and 50 mol%, where Na2O was replaced by 5 and 10 mol% B2O3 and MgO and CaO were fixed to 24 and 16 mol%, respectively. The effect of B2O3 addition on the fibre drawing, fibre mechanical properties and dissolution behaviour was investigated. It was found that addition of 5 and 10 mol% B2O3 enabled successful drawing of continuous fibres from glasses with phosphate (P2O5) contents fixed at 40, 45 and 50 mol%. The mechanical properties of the fibres were found to significantly increase with increasing B2O3 content. The highest tensile strength (1200 ± 130 MPa) was recorded for 45P2O5-16CaO-5Na2O-24MgO-10B2O3 glass fibres. The fibres were annealed, and a comparison of the mechanical properties and mode of degradation of annealed and non-annealed fibres were investigated. A decrease in tensile strength and an increase in tensile modulus were observed for the annealed fibres. An assessment of the change in mechanical properties of both the annealed and non-annealed fibres was performed in phosphate-buffered saline (PBS) at 37℃ for 28 and 60 days, respectively. Initial loss of mechanical properties due to annealing was found to be recovered with degradation. The B2O3-containing glass fibres were found to degrade at a much slower rate as compared to the non-B2O3-containing fibres. Both annealed and non-annealed fibres exhibited a peeling effect of the fibre's outer layer during degradation.

scholarly journals Asymptotic solutions of glass temperature profiles during steady optical fibre drawing

2013 ◽  
Vol 80 (1) ◽  
pp. 1-20 ◽  
Author(s):  
M. Taroni ◽  
C. J. W. Breward ◽  
L. J. Cummings ◽  
I. M. Griffiths
Keyword(s):  
Optical Fibre ◽  
Asymptotic Solutions ◽  
Glass Temperature ◽  
Temperature Profiles ◽  
Fibre Drawing

Unsteady analyses of thermal glass fibre drawing processes

2001 ◽  
Vol 12 (4) ◽  
pp. 479-496 ◽  
Author(s):  
M. GREGORY FOREST ◽  
HONG ZHOU
Keyword(s):  
Glass Fibre ◽  
Nonlinear Partial Differential Equations ◽  
Industrial Process ◽  
Relevant Information ◽  
Thermal Fluctuations ◽  
Synthetic Polymers ◽  
Processing Conditions ◽  
Feedback Controls ◽  
Linearized Stability ◽  
Fibre Drawing

Fibre drawing is an important industrial process for synthetic polymers and optical communications. In the manufacture of optical fibres, precise diameter control is critical to waveguide performance, with tolerances in the submicron range that are met through feedback controls on processing conditions. Fluctuations arise from material non-uniformity plague synthetic polymers but not optical silicate fibres which are drawn from a pristine source. The steady drawing process for glass fibres is well-understood (e.g. [11, 12, 20]). The linearized stability of steady solutions, which characterize limits on draw speed versus processing and material properties, is well-understood (e.g. [9, 10, 11]). Feedback is inherently transient, whereby one adjusts processing conditions in real time based on observations of diameter variations. Our goal in this paper is to delineate the degree of sensitivity to transient fluctuations in processing boundary conditions, for thermal glass fibre steady states that are linearly stable. This is the relevant information for identifying potential sources of observed diameter fluctuation, and for designing the boundary controls necessary to alter existing diameter variations. To evaluate the time-dependent final diameter response to boundary fluctuations, we numerically solve the model nonlinear partial differential equations of thermal glass fibre processing. Our model simulations indicate a relative insensitivity to mechanical effects (such as take-up rates, feed-in rates), but strong sensitivity to thermal fluctuations, which typically form a basis for feedback control.

Fluoride fibre drawing with improved tensile strength

1987 ◽  
Vol 6 (9) ◽  
pp. 1063-1065 ◽  
Author(s):  
S. Sakaguchi ◽  
Y. Terunuma ◽  
Y. Ohishi ◽  
T. Kanamori
Keyword(s):  
Tensile Strength ◽  
Fibre Drawing

Influence of Surface Tension and Inner Pressure on the Process of Fibre Drawing

2010 ◽  
Vol 28 (13) ◽  
pp. 1882-1888 ◽  
Author(s):  
Giovanni Luzi ◽  
Philipp Epple ◽  
Michael Scharrer ◽  
Ken Fujimoto ◽  
Cornelia Rauh ◽  
...  
Keyword(s):  
Surface Tension ◽  
Inner Pressure ◽  
Fibre Drawing

scholarly journals Structure–properties relationships in fibre drawing of bioactive phosphate glasses

2017 ◽  
Vol 52 (15) ◽  
pp. 9166-9178 ◽  
Author(s):  
Laura Muñoz-Senovilla ◽  
Francisco Muñoz ◽  
Gregory Tricot ◽  
Ifty Ahmed ◽  
Andrew J. Parsons
Keyword(s):  
Phosphate Glasses ◽  
Fibre Drawing ◽  
Structure Properties
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