i-manager's Journal on Material Science (JMS)


Volume 4 Issue 3 October - December 2016

Research Paper

Corrosion Behavior of AA2014/SiC Metal Matrix Composite Fabricated by Stir Casting Process

Shashi Prakash Dwivedi* , Anand Sharma**, Shashank Pratap Rao***, Sumit Bahuguna****
* Assistant Professor, Noida Institute of Engineering and Technology, Greater Noida, Uttar Pradesh, India.
**-**** B.Tech Graduate, Noida Institute of Engineering and Technology, Greater Noida, Uttar Pradesh, India.
Dwivedi, S.P., Sharma, A., Rao, S. P., and Bahuguna, S. (2016). Corrosion Behavior of AA2014/SiC Metal Matrix Composite Fabricated by Stir Casting Process. i-manager’s Journal on Material Science, 4(3), 1-6. https://doi.org/10.26634/jms.4.3.8240

Abstract

The objective of the work is to predict the Corrosion behavior of AA2014 reinforced with SiC with different percent of reinforcement. Effects of the weight fraction of SiC particulates on the corrosion behavior of Al/SiC Metal Matrix Composites (MMCs) were studied. The results revealed that the Al/SiC MMCs exhibited higher density than pure Al matrix. The static immersion corrosion tests of Al/SiC MMCs in 3.5 wt.% NaCl aqueous solution at exposure time 24 hours, 48 hours and 72 hours was carried out. Results showed that the Al/15% SiC MMCs have better corrosion resistance than the pure Al matrix. Increasing the weight fraction of the SiC particulates reduces the corrosion rate of the Al/SiC MMCs.

Research Paper

Synthesis of Graphene Oxide via Modified Hummer's Approach and its Characterization

Prachi Kate* , A.K. Goswami**
* PG Student, Department of Chemical Engineering, University Institute of Chemical Technology, North Maharashtra University, Jalgaon, India.
** Associate Professor, Department of Chemical Engineering, University Institute of Chemical Technology, North Maharashtra University,
Kate, P., and Goswami, A. K. (2016). Synthesis of Graphene Oxide via Modified Hummer's Approach and its Characterization. i-manager’s Journal on Material Science, 4(3), 7-11. https://doi.org/10.26634/jms.4.3.8241

Abstract

Graphene Oxide, the most recent nano scale form of carbonaceous material, has attracted much attention recently because of its unique electrical, thermal and mechanical properties, and its tremendous applications in different fields such as in optical, electronic, and catalytic fields. Graphite powder was used as a raw source for the synthesis of graphene oxide via modified Hummer's method. The structural and physiochemical properties of the synthesized product were investigated using techniques, Scanning Electron Microscopy (SEM), Fourier Transform Infrared Spectroscopy (FTIR), X-Ray Diffraction Spectroscopy (XRD) and Energy-dispersive X-ray spectroscopy (EDS). The FTIR

analysis of graphene oxide was found to exhibit several characteristic absorption bands C=O, C=C, C-OH, and C-O suggesting that oxygen-containing groups were introduced into the graphene. The XRD pattern of the prepared graphene oxide showed a sharp peak centered at 2O =9.388, which resembled to the graphene oxide. The SEM micrographs of synthesized graphene oxide demonstrated the layered structure, which affords homogeneous ultra thin graphene films. The EDS analysis of the graphene oxide showed that the sample contains C and O, no other impurity was detected indicating the final product is free of impurities. C and O content was detected 60.90 and 39.10 weight% respectively.

Research Paper

Fabrication and Characteristics of AMC/RHA Functionally Graded Materials by Controlled Mold Filling

P. Nanda Kumar* , P. S. Ravi Kumar**, G. Ranga Janardhana***
* Professor, Department of Mechanical Engineering, N.B.K.R. Institute of Science and Technology, Vidyanagar, Nellore, India.
** Associate Professor, Department of Mechanical Engineering, N.B.K.R. Institute of Science and Technology, Vidyanagar, Nellore, India.
*** Professor, Department of Mechanical Engineering, JNTUA University College of Engineering, Ananthapuramu, India.
Kumar, P. N., Kumar, P. S. R., and Janardhana, G. R. (2016). Fabrication and Characteristics of AMC/RHA Functionally Graded Materials by Controlled Mold Filling. i-manager’s Journal on Material Science, 4(3), 12-18. https://doi.org/10.26634/jms.4.3.8242

Abstract

Functionally Graded Materials (FGM) have been continuously attracting attention in the recent days as they offer varied properties in an uniform manner which is otherwise not possible for common engineering materials. However, production of FG products is still a practicing art. Producing functionally graded materials in the form of layered structure consisting of Al-Mg-Cu (AMC) alloy and Rice Husk Ash (RHA) by Controlled mold filling procedure is presented. The density, impact strength, and hardness in each layer of the FG product were measured. The microstructures of these layers were studied. The results obtained show that functionally graded materials produced by the controlled mold filling process exhibited an improvement in impact strength and hardness and a reduced density with addition of the rice husk ash.

Research Paper

Evaluation of Rutting Characteristics in Stone Mastic Asphalt Mix When Added with Basalt Fiber

Manoj Kumar T.* , A. Ramesh**, M. Kumar***
* PG Student, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.
** Associate Professor, Department of Civil Engineering, VNR Vignana Jyothi Institute of Engineering and Technology, Hyderabad, Telangana, India.
*** Professor and Vice Principal, Department of Civil Engineering, University College of Engineering, Osmania University, Hyderabad, Telangana, India.
Kumar, T. M., Ramesh, A., and Kumar, M. (2016). Evaluation of Rutting Characteristics in Stone Mastic Asphalt Mix When Added with Basalt Fiber. i-manager’s Journal on Material Science, 4(3), 19-26. https://doi.org/10.26634/jms.4.3.8243

Abstract

Stone Mastic Asphalt (SMA) is a gap graded asphalt mix which has large proportion of coarse aggregate and rich in binder content. The mix exhibits lesser stiffness and rutting value. To improve the rutting characteristics of the mix, basalt fibre was added as a substitute to conventional cellulose fibres in SMA Mix. IRC recommends 0.3% of cellulose fibres in SMA Mix. The results explain that there is a considerable increase in engineering properties with the addition of basalt fibres compared with conventional cellulose fibres of SMA. Marshall Properties, Rutting characteristics, Stripping value and Drain down characteristics were improved when SMA Mix is prepared with basalt fibre.

Survey Paper

Effect of Factors on Performance of the Disc Brake System: A Discussion

Viswanatha B. M.* , Prasanna Kumar M.**, Basavarajappa S.***, Kiran T.S.****
* Professor and HOD, Department of Mechanical Engineering, Kalpataru Institute of Technology, Tiptur, India.
** Associate Professor, Department of Studies in Mechanical Engineering, University BDT College of Engineering, Davangere, India.
*** Registrar, Indian Institute of Information Technology, Dharwad, India.
**** Professor, Department of Mechanical Engineering, Kalpataru Institute of Technology, Tiptur, India.
Viswanatha, B. M., Kumar, M. P., Basavarajappa, S., and Kiran, T. S. (2016). Effect of Factors on Performance of the Disc Brake System: A Discussion. i-manager’s Journal on Material Science, 4(3), 27-37. https://doi.org/10.26634/jms.4.3.8245

Abstract

Brake is one of the most important control components of the vehicles. Brake is used in all automotives, locomotives aircraft, and some stationary machines. Different types of brakes like band brakes, drum brakes, electromagnetic brakes are most commonly used. Good and reliable design of brakes has assumed utmost importance in the context of modern world, where the increase in the number of vehicles and improvement in their speed is an everyday phenomenon. Therefore, a brake should be capable of stopping a vehicle within the shortest distance possible, under all conditions of motoring and the brake system should be completely reliable. The design methods used for brakes are based mainly on statistical considerations, and a number of simplifying assumptions. However, in reality, brakes are exposed to operate under extreme environmental conditions and it is the dynamic performance of the brake, which really matters. This paper discusses about the various factors affecting the performance of the Disc Brake system.