Synthesis and characterisation of iron millscale particles reinforced ceramic matrix composite
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Date
2019
Authors
Sekunowo, O.I.
Durowaye, S.I.
Lawal, G.I.
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of King Saud University – Engineering Sciences
Abstract
A promising sintered particulate ceramic matrix composite suitable for automobiles and aircrafts brake
pad application was developed by powder metallurgy method in an attempt to enhance the performance
and service life of the brake pad. The detailed methodology involves using formulation of 30 wt% silica,
40 wt% magnesia, and 30 wt% bentonite as matrices. The blended matrix was reinforced with iron millscale particles which varied from 3 to 18 wt% at particles size distribution (106–250) mm. The developed
composites were subjected to physical, mechanical, thermal, wear, and microstructural characterisations
using Scanning Electron Microscopy with Energy Dispersive Spectroscopy (SEM/EDS). Microstructure of
the composite shows a uniform distribution of millscale particles in the ceramic matrix with a strong
interfacial bonding between the particles. The composite exhibits desirable properties in terms of density
(2.06 g/cm3), hardness (124 BHN), impact energy (4.61 J), compressive strength (143.67 MN/m2), shear
strength (5.78 MN/m2), thermal conductivity (0.39 W/mK), and wear rate (1.91 10 6 g/m). These values
compare well with the properties exhibited by conventional/commercial brake pads indicating a potential for effective performance in service.
Description
Keywords
Iron millscale Ceramic matrix composite Brake pad Characterisations
Citation
Sekunowo, O.I. Durowaye, S.I. Lawal, G.I. (2019). Synthesis and characterisation of iron millscale particles reinforced ceramic matrix composite. Journal of King Saud University – Engineering Sciences; 31: 78–85