Preparation and Properties of Sintered Copper–Tin Composites Containing Copper Coated or Uncoated Fly Ash

Sai, N. Vijaya; Komaraiah, M.; Raju, A. V. Sita Rama

doi:10.1080/10426910802316617

Cited by 20 publications

(4 citation statements)

References 13 publications

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“…For example, Rohatgi et al (1997) added fly ash to aluminum alloy, and reported a considerable increase in abrasive wear resistance of the alloy. Sai et al (2008) combined fly ash of various concentrations (0-16 weight per cent) with copper 5 per cent, and coated some of the samples with copper. Within their investigated parameters, the copper-coated fly ash samples exhibited better wear resistance than the matrix and the uncoated fly ash compacts.…”

Section: Introductionmentioning

confidence: 99%

Effects of fly ash content on the friction-wear performance of bronze-based brake lining materials produced by the hot-pressing method

Kuş

Altıparmak

2015

Industrial Lubrication and Tribology

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Purpose – The purpose of this paper is to investigate the effect of fly ash content on the friction–wear performance of bronze-based brake lining material. Design/methodology/approach – In this study, bronze-based brake linings containing 0-12 weight per cent fly ash were produced by the hot-pressing process. The friction-wear properties of the unreinforced bronze matrix brake lining material and fly ash reinforced samples were investigated using a Chase-type friction tester. The hardness and density of the samples were also determined. The microstructures and friction surfaces of the samples were examined using scanning electron microscopy. Findings – The experimental results showed that the fly ash content significantly affects the friction-wear properties of the brake lining material. It was found that the friction coefficient increases with the increase in the fly ash content for the brake lining materials studied. Moreover, the mass losses in the wear test were lower for the brake linings containing over 4 weight per cent fly ash than unreinforced bronze-based lining material. Originality/value – This study has proven to be useful in exploring fly ash particles as low cost reinforcing materials in improving the friction–wear performance of bronze-based brake lining material. In addition, the use of fly ash particles in the manufacture of brake lining materials contributes to reducing the production cost of brake linings and to a sustainable environment.

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Section: Introductionmentioning

confidence: 99%

Effects of fly ash content on the friction-wear performance of bronze-based brake lining materials produced by the hot-pressing method

Kuş

Altıparmak

2015

Industrial Lubrication and Tribology

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“…Rajeev et al [7] studied the influence of wear and friction with respect to applied load, sliding distance, reciprocating velocity, counter surface temperature and silicon content in Al/SiC composites. Sai et al [8] studied the dry sliding wear behavior of copper fly ash composites using a pin on disc machine. From the results they observed that hardness and density increased for copper coated fly ash particles than the uncoated particles.…”

Section: Introductionmentioning

confidence: 99%

The influence of alumina on mechanical and tribological characteristics of graphite particle reinforced hybrid Al-MMC

et al. 2014

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We consider the influence of alumina (Al 2 O 3 ) particles on mechanical and tribological properties of aluminum hybrid metal matrix composites (MMC). Various weight fraction of Al 2 O 3 (5, 10 and 15%) and constant weight fraction of graphite (5%) were used to fabricate composites by stir casting method. The effect of Al 2 O 3 content on hardness, density and specific wear rate is evaluated. A wear test was performed using central composite design matrix on a pin-on disc apparatus at room temperature for constant sliding distance of 1000 m. The sliding speed, load and weight fraction of Al 2 O 3 were the process variables. The results show that the hardness and density increase with increase in Al 2 O 3 content. From the analysis of variance (ANOVA), load is the dominant factor that affects the specific wear rate of hybrid composites followed by speed and weight fraction of Al 2 O 3. Based on desirability approach, the improvement in the wear resistance of the composites became more prominent at high speed, high load and high weight fraction of Al 2 O 3 . The worn surface of the pin was examined using scanning electron microscope (SEM) which indicates that the wear mechanism of composites is mostly abrasive wear followed by oxide wear.

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“…The major wear mechanisms observed were adhesive and abrasive at low and intermediate sliding speed, respectively, and melt wear at high sliding speed. Fly ash particles are potential discontinuous dispersoids used in metal matrix composites [11], since they are low-cost and low-density reinforcement available in large quantities as a waste by-product in thermal power plants. Powder metallurgy is considered to be the most suitable process to produce particulate reinforced copper matrix composites owing to the high melting point of copper and poor wetting of the reinforcement phase by copper [12].…”

mentioning

confidence: 99%

Wear Studies on SiC and Fly Ash Reinforced Copper Based Composites by Grey Relational Analysis

Balamurugan

Uthayakumar

2014

AMR

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Copper base composites are extensively used in applications where high temperature and corrosive environment. In the present investigation a hybrid metal matrix composite is prepared in which copper is used as a matrix, SiC and Fly ash as reinforcements. The composite is produced by powder metallurgy technique. Dry sliding wear characteristics of the prepared composite specimes were studied by pin on disc setup and optimised result was found through grey relational analysis. Analysis of variance is used to investigate the significance of design parameters which affect the wear characteristic of the materials. The results showed that sliding velocity is having the significant effect than the other parameters.

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Preparation and Properties of Sintered Copper–Tin Composites Containing Copper Coated or Uncoated Fly Ash

Cited by 20 publications

References 13 publications

Effects of fly ash content on the friction-wear performance of bronze-based brake lining materials produced by the hot-pressing method

Effects of fly ash content on the friction-wear performance of bronze-based brake lining materials produced by the hot-pressing method

The influence of alumina on mechanical and tribological characteristics of graphite particle reinforced hybrid Al-MMC

Wear Studies on SiC and Fly Ash Reinforced Copper Based Composites by Grey Relational Analysis

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