Corrosion Resistance of Dense, Impermeable Silicon Carbide

ABSTRACTThe electrodeposition of nickel/silicon carbide (Ni/SiC) composite films formed from modified Watt's bath solutions under potentiostatic conditions on steel substrates was investigated. The effects of deposition potential, pH, variable concentration of SiC in suspension, and additives, such as coumarin and EDTA, on the nickel nucleation and growth transients, as well as on the composition and morphology of Ni/SiC films are described. Improved Vickers microhardness and corrosion resistance of these composite films were found in comparison to those of particle-free deposits.

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Effect of Copper and Silicon Carbide Content on the Corrosion Resistance of Al-Mg Alloys in Acidic and Alkaline Solutions

Journal of Minerals and Materials Characterization and Engineering ◽

10.4236/jmmce.2012.114025 ◽

2012 ◽

Vol 11 (04) ◽

pp. 335-352 ◽

Cited By ~ 3

Author(s):

Ahmad T. Mayyas ◽

Mohammad M. Hamasha ◽

Abdalla Alrashdan ◽

Adel M. Hassan ◽

Mohammed T. Hayajneh

Keyword(s):

Silicon Carbide ◽

Corrosion Resistance ◽

Mg Alloys ◽

Alkaline Solutions ◽

Effect Of Copper ◽

Al Mg Alloys ◽

Carbide Content

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Effect of Age Hardening Treatment on the Corrosion Resistance of AA6061, SiC and Fly ash Powder Metallurgy Composites

International Journal of Vehicle Structures and Systems ◽

10.4273/ijvss.12.1.17 ◽

2020 ◽

Vol 12 (1) ◽

Author(s):

S. Muthukumar

Keyword(s):

Silicon Carbide ◽

Corrosion Resistance ◽

Fly Ash ◽

Powder Metallurgy ◽

Hybrid Composites ◽

Base Material ◽

Age Hardening ◽

Localized Corrosion ◽

General Corrosion ◽

Hardening Treatment

Identification of corrosion resistance through electrochemical methods for silicon carbide and fly ash reinforced metal matrix composites in automobiles is mandatory. In the present work, the composite developed through powder metallurgy process is studied for corrosion resistance. The effect of constant proportion of fly ash (10% wt.) and varying proportion of silicon carbide (5% wt., 10% wt., 15% wt.) on electrochemical corrosion resistance of aluminium alloy AA6061 base material is investigated. The sintered hybrid composites as well as age hardened composites particles were examined under Scanning Electron Microscope (SEM-EDS) to verify the elemental nature of the corroded material. The potentiodynamic polarization technique based corrosion rate measurements exhibited localized corrosion in the sintered hybrid composites. Severely corroded material closer to interface of reinforcements and matrix was observed in addition to attack on the matrix. Age hardening treatment improved the corrosion resistance of hybrid composites in which only general corrosion was observed.

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Investigation of the corrosion resistance of fuel micropellet cladding made of silicon carbide and pyrolytic carbon for the operating conditions of light-water reactors in nuclear power plants

Atomic Energy ◽

10.1007/s10512-006-0159-4 ◽

2006 ◽

Vol 101 (4) ◽

pp. 722-729 ◽

Cited By ~ 4

Author(s):

G. A. Filippov ◽

E. I. Grishanin ◽

M. V. Konditerov ◽

V. P. Mastyukin ◽

V. I. Mel’kin ◽

...

Keyword(s):

Silicon Carbide ◽

Corrosion Resistance ◽

Nuclear Power ◽

Power Plants ◽

Nuclear Power Plants ◽

Pyrolytic Carbon ◽

Operating Conditions ◽

Light Water Reactors ◽

Light Water ◽

Water Reactors

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Factors Affecting Corrosion Resistance of Silicon Nitride Bonded Silicon Carbide Refractory Blocks

Journal of the American Ceramic Society ◽

10.1111/j.1551-2916.2011.04909.x ◽

2011 ◽

Vol 95 (1) ◽

pp. 410-415 ◽

Cited By ~ 9

Author(s):

Ron Etzion ◽

James B. Metson

Keyword(s):

Silicon Carbide ◽

Corrosion Resistance ◽

Silicon Nitride ◽

Factors Affecting ◽

Carbide Refractory ◽

Silicon Carbide Refractory

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The Influence of Reinforcement Purity on Corrosion Resistance of AM50/SiC Composites

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.227.43 ◽

2015 ◽

Vol 227 ◽

pp. 43-46 ◽

Cited By ~ 2

Author(s):

Kinga Kamieniak ◽

Marcin A. Malik

Keyword(s):

Silicon Carbide ◽

Corrosion Resistance ◽

Corrosion Behaviour ◽

Matrix Alloy ◽

Technical Grade ◽

Magnesium Matrix Composites ◽

Sic Particles ◽

The Matrix ◽

Grade Silicon ◽

The One

The microstructure and corrosion behaviour of AM50/SiC magnesium matrix composites reinforced with SiC particles were investigated. Composites containing 10 wt. % of SiC were fabricated by means of gravity casting. Technical grade silicon carbide used for the composites fabrication was subjected to a purification procedure leading to the removal of iron containing impurities from its surface. The corrosion resistance of the composite with purified SiC particles was compared to the corrosion resistance of the one containing crude technical grade silicon carbide as well as to the corrosion resistance of the matrix alloy. Voltammetry and an electrochemical noise technique as well as hydrogen evolution rate measurements were utilized for that purpose. Corrosion tests were performed in 0.5 mol dm3 NaCl saturated with Mg (OH)2. It has been demonstrated that the composite containing purified SiC was less susceptible to corrosion than the one containing crude SiC particles. Both composites were less resistant to corrosion than their matrix itself. Regardless of a purity level of SiC which was used for the composites fabrication, the same constituents were revealed in their microstructure, namely: α-phase (a solid solution of aluminium in magnesium), fully divorced eutectic α + γ (where γ-phase is Al12Mg17), intermetallic compound Al8Mn5 and SiC particles uniformly distributed in the whole volume of the matrix.

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