Cyclic fatigue of high-strength optical fibers in bending

2001 ◽  
Author(s):  
M. John Matthewson ◽  
Vishal Padiyar
Keyword(s):  
Optical Fibers ◽  
High Strength ◽  
Cyclic Fatigue

scholarly journals Excellent Mechanical Properties of the Silicate Glasses Modified by CeO2 and TiO2: A New Choice for High-Strength and High-Modulus Glass Fibers

2021 ◽  
Author(s):  
Chao Chen ◽  
Qingong Zhu ◽  
Huanping Wang ◽  
Feifei Huang ◽  
Qinghua Yang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Silicate Glass ◽  
Optical Fibers ◽  
Bending Strength ◽  
Glass Fibers ◽  
High Strength ◽  
Maximum Level ◽  
Compression Modulus ◽  
Co Doping ◽  
Optimum Approach

Abstract As is well known, silicate glass has a stable glass-forming region and mature drawing processes into fibers. In this study, to obtain enhanced mechanical properties, glasses with a composition of SiO2-Al2O3-MgO-CaO-B2O3-Fe2O3 were synthesized using TiO2 and CeO2. When the amount of TiO2 and CeO2 is less than 2 wt%, the mechanical properties increase with increases in the TiO2 and CeO2. However, as the amount of TiO2 and CeO2 increases from 2 to 3.5 wt%, the mechanical properties decrease. Co-doping with 1 wt% TiO2 and 1 wt% CeO2 was found to be the optimum approach, with a density, bending strength, compression strength, and compression modulus of 2.626 g/cm3, 108.36 MPa, 240.18 MPa, and 115.03 GPa, respectively. The optical band gap and Raman spectroscopy proved that, as long as the content of oxygen bonds reaches the maximum level, a kind of best structural stability and mechanical properties will be achieved. Hence, this type of high-strength silicate glass can be used in optical fibers for military defense, wind power generation, and transportation.

Ni-Coated Optical Fibers by Electroless Plating

2000 ◽  
Vol 6 (S2) ◽  
pp. 456-457
Author(s):  
Yuli Lin ◽  
Li-Jang Hwang
Keyword(s):  
Optical Fibers ◽  
Vapor Deposition ◽  
Nuclear Power ◽  
Power Plants ◽  
Linear Expansion ◽  
Chemical Vapor ◽  
High Strength ◽  
Metal Coating ◽  
Chemical Plants ◽  
Silica Substrate

Optical fibers have been extensively employed in a variety of fields. However, the need of high strength, excellent resistance to moisture permeation and tolerance to heat becomes apparent when such optical fibers are used in nuclear power plants and chemical plants in particular. Plastic coatings as conventional made of optical fibers cables would be replaced by the optical fiber coated with a layer of metal.Several techniques have been applied to make a metal coating for the optical fibers. Dipping method, to pass optical fibers through a bath containing metal melt, was found the simplest. This dipping method, however, suffers from a disadvantage of a generation of a microbent due to the differences of the linear expansion between metal and the silica substrate [1]. Moreover, the control of the thickness was found difficult using the dipping method. Chemical vapor deposition was also used to form the metal coating on optical fibers.

scholarly journals Fiber Embroidery of Self-Sensing Soft Actuators

Biomimetics ◽  
2018 ◽  
Vol 3 (3) ◽  
pp. 24 ◽  
Author(s):  
Steven Ceron ◽  
Itai Cohen ◽  
Robert Shepherd ◽  
James Pikul ◽  
Cindy Harnett
Keyword(s):  
Optical Fibers ◽  
Low Cost ◽  
Three Dimensional ◽  
High Strength ◽  
Linear Displacement ◽  
Angular Rotation ◽  
Linear Elements ◽  
Soft Actuators ◽  
Inextensible Fibers ◽  
Silicone Membranes

Natural organisms use a combination of contracting muscles and inextensible fibers to transform into controllable shapes, camouflage into their surrounding environment, and catch prey. Replicating these capabilities with engineered materials is challenging because of the difficulty in manufacturing and controlling soft material actuators with embedded fibers. In addition, while linear and bending motions are common in soft actuators, rotary motions require three-dimensional fiber wrapping or multiple bending or linear elements working in coordination that are challenging to design and fabricate. In this work, an automatic embroidery machine patterned Kevlar™ fibers and stretchable optical fibers into inflatable silicone membranes to control their inflated shape and enable sensing. This embroidery-based fabrication technique is simple, low cost, and allows for precise and custom patterning of fibers in elastomers. Using this technique, we developed inflatable elastomeric actuators embedded with a planar spiral pattern of high-strength Kevlar™ fibers that inflate into radially symmetric shapes and achieve nearly 180° angular rotation and 10 cm linear displacement.

Fabrication of High-Strength, Low-Loss Fluorozirconate Glass Optical Fibers

1985 ◽  
Vol 5-6 ◽  
pp. 379-385 ◽  
Author(s):  
T. Shibata ◽  
H. Takahashi ◽  
M. Kimura ◽  
T. Ijichi ◽  
K. Takahashi ◽  
...  
Keyword(s):  
Optical Fibers ◽  
High Strength ◽  
Low Loss ◽  
Fluorozirconate Glass

High-strength hermetically tin-coated optical fibers

1991 ◽  
Author(s):  
V. A. Bogatyrjov ◽  
M. M. Bubnov ◽  
E. M. Dianov ◽  
A. Y. Makarenko ◽  
S. D. Rumyantsev ◽  
...  
Keyword(s):  
Optical Fibers ◽  
High Strength

High Strength Furnace-Drawn Optical Fibers

Fiber Optics ◽  
1979 ◽  
pp. 125-135 ◽  
Author(s):  
F. V. DiMarcello ◽  
A. C. Hart ◽  
J. C. Williams ◽  
C. R. Kurkjian
Keyword(s):  
Optical Fibers ◽  
High Strength

High strength, unbuffered optical fibers

1998 ◽  
Vol 239 (1-3) ◽  
pp. 210-218 ◽  
Author(s):  
Bolesh J Skutnik ◽  
M.R Trumbull
Keyword(s):  
Optical Fibers ◽  
High Strength

Super-high-strength metal-coated low-hydroxyl low-chlorine all-silica optical fibers

1996 ◽  
Vol 43 (3) ◽  
pp. 1057-1060 ◽  
Author(s):  
V.A. Bogatyrjov ◽  
I.I. Cheremisin ◽  
E.M. Dianov ◽  
K.M. Golant ◽  
A.L. Tomashuk
Keyword(s):  
Optical Fibers ◽  
High Strength
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