Dr.B. BAVANISH
@niceindia.com
Principal
Noorul Islam College of Engineering and Technology
RESEARCH INTERESTS
Computational Fluid Dynamics, Composite materials, Energy Engineering
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Pushpa Raj Berlin Push and Balac Retnam Bavanish
FapUNIFESP (SciELO)
A. S. Favas, , B. Bavanish, and
Virtual Company of Physics
The HVAC (Heating, Ventilating, and Air Conditioning) industry offers many opportunities for membrane-based gas separation technologies. In this study, a hollow polypropylene (poly-P) fibre membrane loaded with nanoparticles was created to dry out the indoor air. The mechanical and thermal stability of polypropylene loaded nanoparticles (TiO2/poly-P) usually improve with increasing titanium concentration. The example of poly-P with a 4% volume concentration of TiO2 nanoparticles in a polypropylene matrix shows the highest improvement in thermal stability. Atomic force and scanning electron microscopy were used to examine the nanocomposites' structure, and the results showed a correlation between the change in the thermal and mechanical characteristics and the change in TiO2/poly-P content. According to AFM investigations, when titanium nanoparticles are added to poly-P, the supramolecular structure is altered and an ordered structure is created. In comparison to 2% TiO2 doped poly-P nanocomposites, films containing 4% TiO2 demonstrated a more effective immediate moisture retention capacity, according to moisture absorption analyses. This study offers a fresh viewpoint for enhancing the poly-P composite membrane's ability to dehumidify the air.
V. Jayaram and B. Bavanish
Elsevier BV
LR Amjith and B Bavanish
Elsevier BV
Dikson Dennis, P.S. Ganesh, Jobin Joy, L.R. Amjith, and B. Bavanish
Elsevier BV
Mohammed Fahad and Bavanish B.
Emerald
Purpose Aviation field requires a material with greater tribological characteristics to withstand the critical climate conditions. Hence, it is of paramount importance to enhance the wear resistance of material. AZ91D magnesium alloy is a light weight material used in the aviation field for the construction work. The purpose of this study is to augment the wear properties of AZ91D alloy by reinforcing with hard particles such as tungsten carbide (WC) and silicon dioxide (SiO2). Design/methodology/approach In this work, three types of composites were fabricated, namely, AZ91D – WC, AZ91D – SiO2 and AZ91D – (WC + SiO2) by ball milling method, and the tribological properties were analyzed using pin-on-disc apparatus. Findings Results showed that the hardness of AZ91D alloy was greatly improved due to the reinforcing effects of WC and SiO2 particles. Wear study showed that wear rate of AZ91D alloy and its composites increased with the increase of applied load due to ploughing effect and decreased with the increase of sliding speed owing to the formation of lubricating tribolayer. Further, the AZ91D – (WC + SiO2) composite exhibited the lower wear rate of 0.0017 mm3/m and minimum coefficient of friction of 0.33 at a load of 10 N and a sliding speed of 150 mm/s due to the inclusion of hybrid WC and SiO2 particles. Hence, the proposed AZ91D – (WC + SiO2) composite could be a suitable candidate to be used in the aviation applications. Originality/value This work is original which deals with the effect of hybrid particles, i.e. WC and SiO2 on the wear performance of the AZ91D magnesium alloy composites. The literature review showed that none of the studies focused on the reinforcement of AZ91D alloy by the combination of carbide and metal oxide particles as used in this investigation.
Mohammed Fahad and Bavanish B.
Emerald
Purpose The aviation field requires a material with the ability to withstand severe environmental conditions. The purpose of this paper is to provide higher wear resistance and improve the lifetime of aircraft. Hence, it is vital to enhance the wear resistance and strength of the material. Design/methodology/approach In this investigation, the Az91D magnesium alloy was reinforced with lanthanum (La2O3) and cerium oxide (CeO2) nanoparticles by stir casting and heat treatment process and the tribological and mechanical properties were analyzed. Findings The results showed the Az91D/CeO2 composite exhibited higher density (1.96 g/cm3) and lower porosity (1.01%) compared to other materials due to the diffusion of CeO2 nanoparticles in between the atoms of Az91D alloy. The hardness of Az91D/ CeO2 & Az91D/ La2O3 was improved by 38% and 34%, respectively, compared to Az91D alloy owing to the reinforcing effect of hard nanoparticles. Further, the inclusion of nanoparticles decreased the mass loss and showed lower wear rate compared to the Az91D alloy due to the pinning effect of nanoparticles. In addition, the friction coefficient was observed in the order of Az91D > Az91D/ La2O3 > Az91D/ CeO2. Moreover, the heat treatment displayed positive results on the properties of all the materials. Originality/value This work is original as the combination of cerium oxide nanoparticles with Az91D magnesium alloy is not tried by earlier investigators. Further, the comparative performance of both lanthanum and cerium oxide nanoparticles on the tribological and mechanical behavior of Az91D alloy has been analyzed for aviation application. This study will provide new information to the scientific world to increase the lifetime of aviation structures.
L.R. Amjith and B. Bavanish
Elsevier BV
V. Jayaram and B. Bavanish
Elsevier BV
L.R. Amjith and B. Bavanish
Elsevier BV
B. Bavanish and K. Thyagarajan
Elsevier BV