Development and characterisation of iron millscale particle reinforced ceramic matrix composite
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Date
2017
Authors
Durowaye, S.I.
Sekunowo, O.I.
Lawal, A.I.
Ojo, O.E.
Journal Title
Journal ISSN
Volume Title
Publisher
Journal of Taibah University for Science
Abstract
The quest for quality brake pads for use in aircrafts and automobiles to ensure effectiveness and safety continues to attract
attention. Hence, this study was carried out as part of the global efforts at tackling the problem of the low durability of these
friction materials. An iron millscale (IMS) particle reinforced ceramic matrix composite (CMC) was developed by the powder
metallurgy method and characterised. The IMS particle addition varied from 5–30 wt.% in each CMC produced at different particle
size distributions (106–250 m) using silica (SiO2), magnesia (MgO), and sodium bentonite as matrices. On the basis of the close
correlation between structure and property, the CMCs were subjected to physical, mechanical, and microstructural characterisation
using X-ray Fluorescence (XRF), X-ray Diffraction (XRD), and Scanning Electron Microscopy with Energy Dispersive Spectroscopy
(SEM/EDS). The composite exhibits desirable physical and mechanical properties in terms of density (2.97 g/cm3), porosity (1.24%),
linear shrinkage (1.39%), impact energy (43.07 J), and compressive strength (114.17 MN/m2). These values compare very well with
the values of brake pads obtained in previous studies and conventional/commercial brake pads, indicating a potential for effective
performance in service.
Description
Keywords
Iron millscale; Ceramic composite; Characterisation; Brake pads
Citation
Durowaye, S.I.; Sekunowo, O.I.; Lawal, A.I.; Ojo, O.E. (2017). Development and characterisation of iron millscale particle reinforced ceramic matrix composite. Journal of Taibah University for Science 11: 634–644