A. K. Srivastava

ORCID: 0000-0001-6342-0764
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About
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Research Areas
  • Magnetic Properties and Synthesis of Ferrites
  • Multiferroics and related materials
  • Electromagnetic wave absorption materials
  • Advanced Polymer Synthesis and Characterization
  • Photopolymerization techniques and applications
  • Magneto-Optical Properties and Applications
  • Advanced machining processes and optimization
  • Thermal and Kinetic Analysis
  • Conducting polymers and applications
  • Gyrotron and Vacuum Electronics Research
  • Advanced Surface Polishing Techniques
  • Chemical Reactions and Mechanisms
  • Synthetic Organic Chemistry Methods
  • Phosphorus compounds and reactions
  • Dielectric properties of ceramics
  • Polymer Nanocomposite Synthesis and Irradiation
  • Synthesis and properties of polymers
  • Ferroelectric and Piezoelectric Materials
  • Organometallic Complex Synthesis and Catalysis
  • Inorganic and Organometallic Chemistry
  • Polymer Nanocomposites and Properties
  • Advanced Antenna and Metasurface Technologies
  • Epoxy Resin Curing Processes
  • Reservoir Engineering and Simulation Methods
  • Hydraulic Fracturing and Reservoir Analysis

Lovely Professional University
2015-2024

Graphic Era University
2024

Advanced Materials and Processes Research Institute
2019-2023

Academy of Scientific and Innovative Research
2021-2023

Centre for Development of Advanced Computing
2023

Harcourt Butler Technical University
1989-2022

Council of Scientific and Industrial Research
2011-2022

University of Petroleum and Energy Studies
2021

Ansal University
2019

Shri Ramswaroop Memorial College of Engineering and Management
2017

• Microwave absorption properties of BaM/CCTO nanocomposites in K u band. Maximum total shielding above 20 dB. reflection loss below effective (−10 dB) Optical nanocomposites. Band gap within the range application as light sensor camera and satellite technology. Sol-gel autocombustion technique was used to synthesized composites barium hexaferrites (BaM) calcium copper titanate (CCTO) with chemical composition Ba 1−x Co x Fe 12−x−y Dy La y O 19 (x = 0.0, 0.1, 0.2, 0.3 0.4, 0.5, 0.6) Ca 1-x...

10.1016/j.rinp.2019.102307 article EN cc-by-nc-nd Results in Physics 2019-04-26

Ferromagnetic properties of hexaferrites induce magnetisation inside their crystal structure, separating them into uniaxial and ferroxplana hexaferrites. Y-type is the first observed ferrite with spontaneous magnetization in basal c-plane perpendicular to c-axis. a material class that exhibits more comprehensive range adjustable characteristics. This article provides overview synthesis methods produce hexaferrite (A2Me2Fe12O22, where A can be Ba or Sr Me any divalent metal ion) techniques...

10.1016/j.apsadv.2023.100416 article EN cc-by Applied Surface Science Advances 2023-05-22

10.1016/0890-6955(94)00048-o article EN International Journal of Machine Tools and Manufacture 1995-09-01

Abstract This report demonstrates Gd‐Co substituted M‐type barium hexaferrite, Ba 1‐x Gd x Co Fe 12‐x O 19 , successful synthesis adopting sol gel method. Formation of crystalline magneto‐plumbite structure and presence other phases are verified from the X‐ray diffraction analysis. Vibrational modes in FT‐Raman spectra show formation P63/mmc group can be related with structure. TEM images these materials also discussed. UV‐Vis‐NIR shows that material substitution optical energy band gap...

10.1002/crat.201700098 article EN Crystal Research and Technology 2017-07-31

We report the synthesis of a nanocomposite consisting Pd doped multiwall carbon nanotubes decorated with Cu nanoparticles, as lightweight and flexible microwave absorbing material, using an electroless technique.

10.1039/c4ta05749j article EN Journal of Materials Chemistry A 2015-01-01

Abstract With the fast growth of wireless communication technology in high‐frequency ranges, electromagnetic (EM) interference has become a growing concern that drawn international attention. The development materials can absorb EM radiation is crucial solution. This review provides detailed overview ferrites, specifically hexagonal ferrites and their composites for microwave (MW) absorption. It examines ferrite classifications based on stacking order fundamental blocks synthesis methods...

10.1002/crat.202200200 article EN Crystal Research and Technology 2022-12-11

The middle Eocene Kalol Formation in the north Cambay Basin of India is producing hydrocarbons commercial quantity from a series thin clastic reservoirs. These reservoirs are sandwiched between coal and shale layers, discrete nature. has been divided into eleven units (K‐I to K‐XI) top bottom. Multipay sands K‐IX unit 2–8 m thick main hydrocarbon producers study area. Apart their nature, these exhibit lithological variation, which affects porosity distribution. Low‐porosity zones found...

10.1190/1.1707054 article EN Geophysics 2004-03-01

M-type barium hexaferrites with chemical composition Ba1–xDyxFe12–yCryO19 (x = 0.0,0.1,0.2, and y 0.0,0.4,0.5) were synthesized via sol–gel auto-combustion method. The samples pre-sintered at 400 °C for 3 h sintered 950 5 h. changes in the structural, dielectric, optical properties studied after substitution of Dy3+ Cr3+ ions. X-ray diffraction (XRD) analysis confirms formation single phase absence secondary phase. FTIR gives an idea appearance two peaks 438 cm–1 589 cm–1. field emission...

10.1088/1674-1056/27/12/128104 article EN Chinese Physics B 2018-12-01
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