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Papers by J. Jatau
International Journal of Engineering Research and, 2019
The use of Taguchi optimization process in conditioning the heat treatment of A356 aluminium allo... more The use of Taguchi optimization process in conditioning the heat treatment of A356 aluminium alloy was done in this study. The alloy was chill cast and solution heat treated. The rice husk/ash was analyzed before and after ashing using textural analysis (BET), X-ray fluorescence (XRF) analysis and X-ray diffractometry analysis respectively. The heat treated samples were characterized for wear resistance properties. The textural analysis showed an enhanced rice husk condition, XRF and XRD result indicated the presence of silica (SiO2) as the major component of the rice husk/ash produced. Nine experimental runs were obtained with run 4 having the lowest wear rate of 0.5208 mm3/n/m. The optimization analysis employed indicates a possible improvement of 5.139%. The as cast and conventionally heat treated samples indicated a wear rate of 0.7886 mm3/n/m and 0.5887 mm3/n/m respectively. The improvement is as a result of the formation of silicon metal, which dissolves in the aluminium alloy. In conclusion, the results from the confirmation experiments using the optimal parameters confirm that solution heat treatment in the presence of rice husk ash followed by ageing treatment can be used to improve the wear resistance of the material under study.
… Electronic Journal of …, 2007
A new binder system has been developed which is based on manihot esculenta and cement. The new bi... more A new binder system has been developed which is based on manihot esculenta and cement. The new binder system is expected to be an alternative to Urea formaldehyde furfuryl alcohol binder system commonly used in the foundry for core making; it is a cold ...
Refractory materials are non-metallic materials with high melting point, inert to chemical corros... more Refractory materials are non-metallic materials with high melting point, inert to chemical corrosion and maintain their structural properties at high temperature. This research evaluated the physical properties such as bulk density, apparent porosity, linear shrinkage, cold compressive strength, thermal shock resistance, loss on ignition and refractoriness of Alkaleri clay with rice husk ash (RHA) admixture using design expert 7.1.6 Central Composite Design (CCD). The physico-chemical properties of Alkaleri clay and rice husk ash ( RHA ) from Rafin zurfi, Yelwa in Bauchi State was characterized using Energy Dispersive X-ray Fluorescence Spectrometry (ED-XRFS), the result show that Alkaleri clay has 33.3wt% of aluminum oxide (Al2O3) and 46.35wt% of silicate oxide (SiO2), hence the clay belongs to alumino-silicate clay while the RHA has 74.2wt% of silicate oxide and 8.52wt% of potassium oxide (K2O) that is responsible for its pozzolanic effect, 2.0% of magnesium oxide (MgO) and 4.09%...
International Journal of Research Publications
International Journal of Research Publications
Abstract A new binder system has been developed which is based on manihot esculenta and cement. T... more Abstract A new binder system has been developed which is based on manihot esculenta and cement. The new binder system is expected to be an alternative to Urea formaldehyde furfuryl alcohol binder system commonly used in the foundry for core making; it is a cold ...
International Journal of Engineering Research and, 2019
The use of Taguchi optimization process in conditioning the heat treatment of A356 aluminium allo... more The use of Taguchi optimization process in conditioning the heat treatment of A356 aluminium alloy was done in this study. The alloy was chill cast and solution heat treated. The rice husk/ash was analyzed before and after ashing using textural analysis (BET), X-ray fluorescence (XRF) analysis and X-ray diffractometry analysis respectively. The heat treated samples were characterized for wear resistance properties. The textural analysis showed an enhanced rice husk condition, XRF and XRD result indicated the presence of silica (SiO2) as the major component of the rice husk/ash produced. Nine experimental runs were obtained with run 4 having the lowest wear rate of 0.5208 mm3/n/m. The optimization analysis employed indicates a possible improvement of 5.139%. The as cast and conventionally heat treated samples indicated a wear rate of 0.7886 mm3/n/m and 0.5887 mm3/n/m respectively. The improvement is as a result of the formation of silicon metal, which dissolves in the aluminium alloy. In conclusion, the results from the confirmation experiments using the optimal parameters confirm that solution heat treatment in the presence of rice husk ash followed by ageing treatment can be used to improve the wear resistance of the material under study.
… Electronic Journal of …, 2007
A new binder system has been developed which is based on manihot esculenta and cement. The new bi... more A new binder system has been developed which is based on manihot esculenta and cement. The new binder system is expected to be an alternative to Urea formaldehyde furfuryl alcohol binder system commonly used in the foundry for core making; it is a cold ...
Refractory materials are non-metallic materials with high melting point, inert to chemical corros... more Refractory materials are non-metallic materials with high melting point, inert to chemical corrosion and maintain their structural properties at high temperature. This research evaluated the physical properties such as bulk density, apparent porosity, linear shrinkage, cold compressive strength, thermal shock resistance, loss on ignition and refractoriness of Alkaleri clay with rice husk ash (RHA) admixture using design expert 7.1.6 Central Composite Design (CCD). The physico-chemical properties of Alkaleri clay and rice husk ash ( RHA ) from Rafin zurfi, Yelwa in Bauchi State was characterized using Energy Dispersive X-ray Fluorescence Spectrometry (ED-XRFS), the result show that Alkaleri clay has 33.3wt% of aluminum oxide (Al2O3) and 46.35wt% of silicate oxide (SiO2), hence the clay belongs to alumino-silicate clay while the RHA has 74.2wt% of silicate oxide and 8.52wt% of potassium oxide (K2O) that is responsible for its pozzolanic effect, 2.0% of magnesium oxide (MgO) and 4.09%...
International Journal of Research Publications
International Journal of Research Publications
Abstract A new binder system has been developed which is based on manihot esculenta and cement. T... more Abstract A new binder system has been developed which is based on manihot esculenta and cement. The new binder system is expected to be an alternative to Urea formaldehyde furfuryl alcohol binder system commonly used in the foundry for core making; it is a cold ...