Mussel Shell Powder as a Filler Material in Brake Linings
|International Journal of Engineering Trends and Technology (IJETT)||
|© 2017 by IJETT Journal|
|Year of Publication : 2017|
|Authors : ?brahim Kocaba?, Ha?im P?ht?l?
|DOI : 10.14445/22315381/IJETT-V51P212|
?brahim Kocaba?, Ha?im P?ht?l? "Mussel Shell Powder as a Filler Material in Brake Linings", International Journal of Engineering Trends and Technology (IJETT), V51(2),66-69 September 2017. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group
In this study, brake linings made of mussel shell powders as a filler material were investigated in terms of wear behaviour, braking performance, friction coefficient and thermal stability to have an idea about the possibility of implementing mussel shell as a candidate of filler material. Brake linings are composed of relatively soft but wear resistant and high thermal conductive materials with a high dynamic friction coefficient in order to keep stability of the friction force and move the heat away under different braking pressures and travel speeds. The manufacture of semi-organic brake linings requires to identical combination of various type of materials such as metals, ceramics, organic materials, resins and friction modifiers followed by characterization of powders, cold pressing and curing processes to acquire final product. For those purposes, the samples manufactured under optimized 15MPa cold pressing and curing at a temperature of 150°C for 2 hours, undergo braking tests in a specially designed experimental setup enabling to measure variation of temperature and friction coefficient during operation. Weight percentage of the samples was preferred to be 5, 10, 15 and 20% by mass. Mussel shell reveals acceptable braking behaviour as a result of microstructure examinations via Scanning Electron Microscopy (SEM) and evaluations which are; hardness 27.5HB, corrosion resistance 1.63% by mass loss and average friction coefficient of 0.39.
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