Wear behaviour of plasma-sprayed AlSi/B4C composite coatings

Sarikaya, Ozkan; Anik, S; Çelik, Erdal; Okumus, S. C.; Aslanlar, Salim

doi:10.1016/j.matdes.2006.07.004

Cited by 24 publications

(8 citation statements)

References 16 publications

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“…Aluminum metal-matrix composites (Al-MMCs) reinforced with ceramic phases have become an important class of materials for structural, thermal and functional (for instance, electrical) applications because of their high elastic modulus, high hardness, abrasion resistance and excellent properties at room temperature and at relatively high temperatures, compared with conventional materials [1][2][3][4][5][6][7][8]. Although the reinforcing, thermal or functional phases are available in a variety of morphologies, most of the developments on AMMCs have focused on the use of particulate discontinuous reinforcements, presumably due to their versatility and low cost [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Although the reinforcing, thermal or functional phases are available in a variety of morphologies, most of the developments on AMMCs have focused on the use of particulate discontinuous reinforcements, presumably due to their versatility and low cost [9][10][11]. Different materials have been used as reinforcements, including Al 2 O 3 , AlN, TiC, SiC and B 4 C [7,8,12].…”

Section: Introductionmentioning

confidence: 99%

“…The variety of routes used for production of Al-MMCs is ample, including powder metallurgy, spray deposition, mixing, diffusion bonding, stir casting, squeeze casting, compo casting, mechanical alloying as well as liquid metal infiltration [8,[12][13][14][15]. The latter route can be carried out in two modes, namely, pressure-assisted infiltration and pressureless infiltration.…”

Section: Introductionmentioning

confidence: 99%

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Surface chemistry modification for elimination of hydrophilic Al4C3 in B4C/Al composites

2016

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Surface chemistry modification for elimination of hydrophilic Al4C3 in B4C/Al composites

2016

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“…Besides hardness its unique structure providing properties like low density (2.52gm/cm 3 ), excellent chemical inertness at room temperature, along with high wear and impact resistance, high melting point (2723K), specific heat (970JkgL -1 ), melting enthalpy (1867KJ kgL -1 ), elastic modulus and neutron absorption cross-section (»4000barns) and excellent thermo-electrical properties make it as a key material in various high technology applications like neutron moderator in nuclear reactors, ceramic armor, power generation in deep space flight application, micro-electronics. [5][6][7][8][9]. The high neutron absorption property of B 4 C is due to presence for B 10 isotope makes it as a shielding, control rod, and shut down pellets in nuclear plants [10 ].…”

Section: Introductionmentioning

confidence: 99%

“…The fabrication of fully densified B 4 C without sintering requires hot pressing above 2373K with the application of load of more than 30MPa in uniaxial direction [19,20]. Its applicability in structural shielding and other functional applications can be widespread by dispersing it Keywords: electroless coating; boron carbide; adhesion; neutron shielding into metal matrixes which provides mechanical properties of metal and unique properties of B 4 C [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

Studies on the effect of processing parameters on electroless coating of copper on boron carbide particles

Deepa

Resmi

Rajan

et al. 2011

Trans Indian Inst Met

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Boron carbide a hard refractory semiconductor ceramic material due to its unique structural properties and high neutron cross section finds application as structural materials and neutron shielding material. Its applicability is reduced due to low sinterbility and dispersiblity which can be overcome by copper coating. The effect of Electroless coating parameters on the surface deposits is characterised. The studies revealed that uniform and smooth coating was observed for pH11 at bath temperature of 348K. The prolonged suspension of B 4 C particles on the reaction bath has little effect on coating but it inturns reduces the adhesion of coating on activated particles.

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Abrasive wear behavior of various reinforced AA6061 matrix composites produced with hot pressing process: A comparative study

Ovalı

2017

Materialwissenschaft Werkst

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The effects of various reinforcements (boron carbide -silicon carbide-alumina) with constant volume fraction (20 %) on the abrasive wear properties of AA6061 matrix composites produced with hot pressing process were investigated. The wear tests were carried out using a pin-on-disk wear tester by sliding at sliding speeds of 1.2 m/s against silicon carbide paper. Applied normal loads have 5, 10 and 15 N magnitude at room temperature. The wear morphologies of the worn surfaces were analyzed using a scanning electron microscope in order to examine the wear characteristics and to investigate the wear mechanisms. The effects of reinforcement type on the wear behavior of AA6061 matrix composites were observed. Results exhibited that the optimum wear resistance obtained with the boron carbide reinforced composite parts. All reinforced samples showed better wear resistance compared to as-received samples in all the studied conditions. Scanning electron microscope characterization showed that test specimens have complex combination of wear mechanisms on the worn surface. Keywords: Composite, wear / AA6061 / boron carbide / silicon carbide / alumina Die Wirkungen verschiedener Verstä rkungen (Borcarbid -Siliziumkarbid -Aluminiumoxid) mit konstantem Volumenanteil (20 %) auf das Abriebverhalten von durch Heißpressen hergestellten AA6061 Matrixverbundwerkstoffen wurden untersucht. Die Verschleißuntersuchungen wurden bei einer Gleitgeschwindigkeit von 1,2 m/s gegen Siliziumkarbid mit einem Stift-Scheibe-Verschleißtester durchgefü hrt bei Normalbelastungen von 5, 10 und 15 N bei Raumtemperatur. Die Verschleiß-Morphologien der verschlissenen Oberflä chen wurden unter Verwendung eines Rasterelektronenmikroskops auf die Verschleißmechanismen untersucht. Die Auswirkungen der Verstä rkung auf das Verschleißverhalten von AA6061 Matrix-Verbundmaterialien wurden beobachtet. Die Ergebnisse zeigen, dass die optimale Verschleißfestigkeit durch mit Borcarbid verstä rkte Verbundteile erhalten wird. Alle Proben wiesen eine bessere Verschleißfestigkeit im Vergleich zu Proben ohne Verstä rkung in allen untersuchten Bedingungen auf. Die Charakterisierung durch das Rasterelektronenmikroskops zeigte, dass die Prü flinge eine komplexe Kombination von Verschleißmechanismen auf der geschä digten Oberflä che haben.

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Wear behaviour of plasma-sprayed AlSi/B4C composite coatings

Cited by 24 publications

References 16 publications

Surface chemistry modification for elimination of hydrophilic Al4C3 in B4C/Al composites

Surface chemistry modification for elimination of hydrophilic Al4C3 in B4C/Al composites

Studies on the effect of processing parameters on electroless coating of copper on boron carbide particles

Abrasive wear behavior of various reinforced AA6061 matrix composites produced with hot pressing process: A comparative study

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