Umesh Kumar
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Umesh Kumar has a total of 7 co-authors. Here are the top co-authors by number of shared publications:
- Diwakar Padalia
Department of Physics, School of Basic & Applied Sciences, K. R. Mangalam University, Gurugram, India
2 shared publications - Pawan Kumar
School of Basic and Applied Sciences, K. R. Mangalam University, Sohna Road, Gurgaon, Haryana 122103, India
2 shared publications - Lalit Ranakoti
Mechanical Engineering Department, Graphic Era (Deemed to be University), Dehradun 248002, Uttarakhand, India
1 shared publication - László Lendvai
Department of Materials Engineering and Machine Design, Széchenyi István University, H-9026 Győr, Hungary
1 shared publication Prabhakar Bhandari
Department of Mechanical Engineering, School of Engineering & Technology, K. R. Mangalam University, Gurugram, India
1 shared publication- Prabhakar Bhandari
K. R. Mangalam University
1 shared publication
Latest Publications
- 9 June 2023
- Published by Springer Nature in Journal of Nanoparticle Research
- Vol. 25 (6) , 1-15
Estimation of lattice strain and structural study of BaTiO3/PS polymer composite using X-ray peak profile analysis
- 9 June 2023
- Published by Springer Nature in Journal of Nanoparticle Research
- Vol. 25 (6) , 1-15
Estimation of lattice strain and structural study of BaTiO3/PS polymer composite using X-ray peak profile analysis
- Open Access
Fabrication of Europium-Doped Barium Titanate/Polystyrene Polymer Nanocomposites Using Ultrasonication-Assisted Method: Structural and Optical Properties
In the current work, europium-doped barium titanate particles were used as filler material and polystyrene was used as a matrix to fabricate Ba1−3x/2EuxTiO3/PS polymer nanocomposites with x = 0, 0.005, 0.015 and 0.025. A solid-state reaction was used to synthesize filler particles and the solvent evaporation method was used to form polymer nanocomposites. The effects of ultrasonic treatment were also studied in the formation of nanocomposite materials. The quantitative and qualitative studies were conducted using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), and ultraviolet-visible (UV-Vis) characterization techniques. The XRD data and FTIR data confirm the incorporation of filler particles in the polymer matrix. FE-SEM data confirms that the particles are in the nanophase. The optical band gap was directly affected by the filler particles and it started to reduce as Eu concentration started to increase.
Open AccessFabrication of Europium-Doped Barium Titanate/Polystyrene Polymer Nanocomposites Using Ultrasonication-Assisted Method: Structural and Optical Properties
In the current work, europium-doped barium titanate particles were used as filler material and polystyrene was used as a matrix to fabricate Ba1−3x/2EuxTiO3/PS polymer nanocomposites with x = 0, 0.005, 0.015 and 0.025. A solid-state reaction was used to synthesize filler particles and the solvent evaporation method was used to form polymer nanocomposites. The effects of ultrasonic treatment were also studied in the formation of nanocomposite materials. The quantitative and qualitative studies were conducted using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), field emission scanning electron microscopy (FE-SEM), and ultraviolet-visible (UV-Vis) characterization techniques. The XRD data and FTIR data confirm the incorporation of filler particles in the polymer matrix. FE-SEM data confirms that the particles are in the nanophase. The optical band gap was directly affected by the filler particles and it started to reduce as Eu concentration started to increase.