<b>An imaging SIMS study on the tribological properties of boron carbide thin</b> films

Tavşanoğlu, Tolga; Jeandin, Michel; Addemir, O.; Ağırseven, Okan; Yücel, Onuralp

doi:10.1002/sia.5035

Cited by 6 publications

(6 citation statements)

References 21 publications

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“…Like in previous reports, 15 we observed (not shown) that films thicker than $1 lm have a tendency to spall off the substrate when not heating the substrate and keeping the deposition rate low. Fig.…”

Section: B Experimentssupporting

confidence: 90%

“…[9][10][11][12][13] The majority of these films are intended for very hard coatings applications, meaning that the main focus is to find ways to maximize the hardness. 13,14 Unfortunately, the high hardness is often related to bad substrate adhesion for film thicknesses in the micrometer range, 15 mainly due to high amounts of residual stresses in nat B 4 C thin films. 10,[16][17][18] Despite this, the possibility to grow over 50 lm thick adherent nat B 4 C coatings with rf sputtering is reported.…”

Section: Introductionmentioning

confidence: 99%

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B4C thin films for neutron detection

Höglund¹,

Birch²,

Andersen³

et al. 2012

Journal of Applied Physics

149

165

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Due to the very limited availability of B 4 C targets in an Ar discharge, using an industrial deposition system. The films were characterized with scanning electron microscopy, elastic recoil detection analysis, x-ray reflectivity, and neutron radiography. We show that the film-substrate adhesion and film purity are improved by increased substrate temperature and deposition rate. A deposition rate of 3.8 Å /s and substrate temperature of 400 C result in films with a density close to bulk values and good adhesion to film thickness above 3 lm. Boron-10 contents of almost 80 at. % are obtained in 6.3 m 2 of 1 lm thick 10 B 4 C thin films coated on Al-blades. Initial neutron absorption measurements agree with Monte Carlo simulations and show that the layer thickness, number of layers, neutron wavelength, and amount of impurities are determining factors. The study also shows the importance of having uniform layer thicknesses over large areas, which for a full-scale detector could be in total $1000 m

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Section: B Experimentssupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

B4C thin films for neutron detection

Höglund¹,

Birch²,

Andersen³

et al. 2012

Journal of Applied Physics

149

165

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“…The EDS method is not good enough for determining the amount of boron because it has a relatively weak peak-to-background ratio, and in addition, boron peaks often coincide with carbon peaks. However, there are available papers in which the authors used the EDS method to indicate the boron quantity or its approximate content [ 22 , 23 ]. Some authors obtain a higher boron content in the produced coatings [ 19 ], however, it should be noted that in the paper cited the carbon content in the coating was completely omitted.…”

Section: Resultsmentioning

confidence: 99%

Microstructure, Microhardness, Corrosion Resistance and Chemical Composition of Mo, B and Mo-B Coatings Produced Using Laser Processing

et al. 2020

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The paper presents study results of laser alloying of CT90 tool steel with an applied pre-coat of boron, molybdenum or a mixture of these elements. Pre-coats were applied on steel substrates in the form of a paste. The aim of the study was to investigate the microstructure, chemical and phase composition, microhardness and corrosion resistance of these newly-formed coatings. The laser alloying process was carried out using a diode laser with a nominal power of 3 kW. In this study a laser beam power of 900 W and a scanning speed of 48 mm/s were used. As a result of the laser beam action, the presence of three areas was observed in cross-sections of specimens: a remelted zone, a heat affected zone and the substrate. The properties of coatings enriched with both molybdenum and boron were better than those of the steel substrate, but only the use of a Mo-B mixture resulted in a significant improvement in microhardness and corrosion resistance.

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“…2,3 Combined with the advantages and stability up to very high temperatures and extreme conditions, this material is used in lightweight armor and wear-resistant. 4,5 Recently, interesting area arises from the technological problem of fusion nuclear reactor where this carbide film can be used as the inner wall. [6][7][8] Most of the published results concern the properties for fusion applications.…”

Section: Introductionmentioning

confidence: 99%

Structural Evolution of B–C Thin Films Deposited from SPSed‐Target and Dual‐Target

Zhang

Wang

et al. 2014

J. Am. Ceram. Soc.

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Boron carbide thin films have been synthesized via pulsed laser deposition process using Spark Plasma Sintered (SPSed) and dual‐targets, respectively. Two kinds of structural evolutions have been found by investigation of bonding environments in as‐deposited thin films via X‐ray photoelectron spectroscopy study. With decreasing of B/C ratio, films deposited from SPSed‐target show the transformation of B11C‐CBB → B11C‐CBC. In contrast, the films deposited from dual‐target present the B11C‐CBB → B10C2‐CBB structural change.

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An imaging SIMS study on the tribological properties of boron carbide thin films

Cited by 6 publications

References 21 publications

B4C thin films for neutron detection

B4C thin films for neutron detection

Microstructure, Microhardness, Corrosion Resistance and Chemical Composition of Mo, B and Mo-B Coatings Produced Using Laser Processing

Structural Evolution of B–C Thin Films Deposited from SPSed‐Target and Dual‐Target

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