ABSTRACT
This research work used shea nut (vitellaria paradoxa) shell and cow hoof (bauhinia ungulata) as the reinforcement materials in the production of automotive brake pads. Taguchi method of experimental design and grey relational analysis were used to determine the optimal values of the manufacturing parameters. Other constituents combined together to produce the brake pad samples were epoxy resin, graphite, calcium carbonate and aluminium oxide. The optimal values obtained for SNS-reinforced samples were moulding pressure (15MPa), moulding temperature (900C), moulding time (9mins) and post curing time (1hour) while the values for CH-reinforced samples were 13MPa, 900C, 11mins and 2hours respectively. The optimized samples for each reinforcement were produced and subjected to water absorption, oil absorption, compression, hardness, wear rate and coefficient of friction tests. Other examinations carried out were thermo-gravimetric analysis, thermal conductivity test and morphological structure analysis. The results of the tests obtained for SNS-reinforced sample are 0.0591%, 0.0661%, 88.5MPa, 42.5HV, 0.216mg/m and 0.7103 respectively while that of the CH-reinforced sample are 0.0739%, 0.105%, 84MPa, 43HV, 0.1972mg/m and 0.781 respectively. The thermo-gravimetric analysis showed that the SNSreinforced sample was more stable thermally than the CH-reinforced sample. However, the two samples have their maximum decomposition at a higher temperature range of 3000C – 4000C which falls within the range of average brake temperature. Thermal conductivity test gave 0.02154Wm1K -1 and 0.0248 Wm-1K -1 for SNS-reinforced and CH-reinforced samples respectively. The morphological structure analysis showed that there was uniform distribution between the resin and the two reinforcement materials. These results obtained showed that SNS and CH are promising replacements for asbestos in automotive brake pad production.
ABSTRACT
This study was undertaken in order to gain an insight on the knowledge and attitudes of the AUN community towards Down syndrome,...
Abstract
An attempt was made to determine the relationship between the revenue made in sport betting within South Africa and the country`...
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This projected is concerned with the impact of sales promotion strategies on customers patronage of Breweries I...
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The broad objective of this study is to critically assess precision...
Abstract
The major concern of this research work is to assess the role of Idemili South Local Government Area of Anambra...
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The Mineral and Geothermal Potentials of part of Kogi State was investigated through the interpretation of aeromagnetic and radi...
Background of Study
It is nece...
ABSTRACT
This research examined the impact of inventory control on the profitability of manufacturing c...
ABSTRACT
Alcoholism has been identified as a common practice among youths it in Chukun Local Gover...
STATEMENT OF THE PROBLEM
According to Bello (2008), public residential properties is more than a mere shelter; it includ...