Effect of the coating thickness and roughness on the mechanical strength and thermally induced stress voids in nickel-coated optical fibers prepared by electroless plating method

Shiue, Sham‐Tsong; Yang, Chia-Hao; Chu, Rong-Shian; Yang, Tzong Jer

doi:10.1016/j.tsf.2005.04.024

Cited by 39 publications

(10 citation statements)

References 24 publications

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“…The metals can be coated on the silica optical fiber through several coating methods such as the evaporation method (Sekar et al, 2012), chemical plating (or electroless plating; Benounis et al, 2003; Li et al, 2009a; Shiue et al, 2005), electroplating (Chang and Sirkis, 1993; Feng et al, 2009; Li et al, 2001, 2009a, 2009b, 2012), and the dipping method (Inada and Shiota, 1985; Seo et al, 1998). The thickness of a metallic coating can be precisely controlled by adjusting experimental parameters such as temperature, reaction time, chemical concentration, and dipping reservoir dimensions.…”

Section: Resultsmentioning

confidence: 99%

Signal characteristics of surface-bonded fiber Bragg grating sensor with elastoplastic metallic coating subjected to residual strain

Kim

2017

Journal of Intelligent Material Systems and Structures

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This study involved predicting the reflected spectrum of a surface-bonded fiber Bragg grating sensor with an elastoplastic metallic coating wherein residual strains are non-uniformly distributed on the sensor. A profile of residual strains was numerically calculated based on the stepwise numerical technique by adopting strain transfer analysis and was validated by finite element analysis. The reflected spectrum of a metal-coated fiber Bragg grating sensor was consequently simulated to obtain the calculated profile of residual strains through the Transfer-matrix (T-matrix) method and coupled mode theory. The results revealed that a non-uniform profile of permanently induced residual strains along the sensor makes the reflected spectrum distorted. Thus, it is necessary for a metal-coated fiber Bragg grating sensor with a 10-mm Bragg grating to be bonded to a minimum length of 16.0 mm to suppress the signal distortion. The study additionally investigated the effect of parameters of an elastoplastic metallic coating (i.e. thicknesses and mechanical properties) on the spectrum characteristics and proposed minimally required bonding lengths by considering these characteristics. The evaluated spectra of the metal-coated fiber Bragg grating sensors that consider various coating parameters will reduce measurement errors and provide directions to determine geometric parameters when the sensor is actually installed on a structure surface.

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Section: Resultsmentioning

confidence: 99%

Signal characteristics of surface-bonded fiber Bragg grating sensor with elastoplastic metallic coating subjected to residual strain

Kim

2017

Journal of Intelligent Material Systems and Structures

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“…In addition, these metals have already been used in previous studies and a good performance has been achieved with them [10], [11]. While evaluating the many techniques reported to coat optical fibers [4]- [6], it was found that the same techniques reported by us previously in the literature [10] were the most suitable and thus were chosen. In this process, first a layer of gold of 2µm thickness was deposited on the optical fiber using a sputtering process.…”

Section: Methodsmentioning

confidence: 99%

“…Such a coating mechanically protects the fiber from the high temperatures and mechanical loads experienced during the embedding process [4]. In addition, they affect the bonding to the metal, which can be compromised by slippage or delamination [5], [6]. The earliest solutions presented for embedding FOS into metals were based on deposition techniques.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Fiber Optic Sensor Embedded in Metals by Automatic and Manual TIG Welding

Grandal¹,

Zornoza

López³

et al. 2019

IEEE Sensors J.

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In this paper, the embedding of fiber optic sensors in metals, by using both automatic and manual Tungsten Inert Gas welding (TIG) is discussed for nickel-and copper-coated Fiber Bragg Gratings (FBG) written into an optical fiber, as embedding such sensors in metals provides protection against environmental effects. In the investigation and analysis of the performance of a number of such sensors, copper-coated sensors were seen to lose their temperature and strain sensitivity while being embedded due to damage to the coating, while with a nickel coating the sensors in the fiber were found to withstand the process with a lesser effect on the sensor performance. The research has also shown that the Automatic TIG process used is less invasive than the manual TIG approach, although more expensive to implement.

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“…Recently, metal layers supported by fibrous materials have been widely exploited for use in the catalytic elimination of environmental pollutants and as membranes for energy-related processes, conductive or optical components for electronic devices, insulators for electromagnetic wave interference, reinforcements, templates, and antimicrobial agents [5][6][7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Novel electroless copper deposition on carbon fibers with environmentally friendly processes

Byeon

Kim

2010

Journal of Colloid and Interface Science

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Effect of the coating thickness and roughness on the mechanical strength and thermally induced stress voids in nickel-coated optical fibers prepared by electroless plating method

Cited by 39 publications

References 24 publications

Signal characteristics of surface-bonded fiber Bragg grating sensor with elastoplastic metallic coating subjected to residual strain

Signal characteristics of surface-bonded fiber Bragg grating sensor with elastoplastic metallic coating subjected to residual strain

Analysis of Fiber Optic Sensor Embedded in Metals by Automatic and Manual TIG Welding

Novel electroless copper deposition on carbon fibers with environmentally friendly processes

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