Dr A M Varaprasad  is a Reputed Scientist of DRDO served at Research Centre Imarat , Dr APJ Abdul Kalam Missile Complex, Hyderabad.  After about 3 decades of DRDO service, retired from Government service in 2012. Now, Dr Varaprasad is a Professor of Electronics & Communication Engineering Department at St Ann's College of Engineering & Technology  of Jawaharlal Nehru Technological University JNTU(K) and involved in teaching Satellite Communications & Space Technology.

                Dr. Varaprasad's Technology background include  

Ø  Missile Technology

Ø  Micro Systems  and Micro Electro Mechanical Systems(MEMS)

Ø  Pressure sensors, Accelerometers & Gyroscope

Ø  Bulk Acoustic Wave Devices /BAW electronic filters (RF MEMS)

Ø  Solid state synthesis  & characterization of  Piezoelectric and ferroelectric materials

Ø   Piezoelectric PZT-4 for SONAR Applications

Ø  PZT-Polymer composites for Hydrophone applications,

Ø  Piston insulators for Brake assembly of aircraft like Mirage-2000

Ø  Thermal barrier coating materials based on Zirconia ceramics  

Ø  Stealth Paints with Hexagonal ferrites 

Ø  Superconductor oxide ceramics- YBa2Cu3 Oxide

Awards :

1980 :    Irish Post doctoral Fellow, Trinity college Dublin (Dec 1980 to June 1983)

1986 :    Japan Matsumae International Foundation Fellowship & Medal (Sept 1986 to March 1987)

1990 :    Materials Research Society of India Medal

Education  :

1980 :    Ph.D., Indian Institute of Technology, Bombay, India.

1974 :    M.Sc., Andhra University, Waltair, India.

1972 :     B.Sc., Andhra University, Waltair , India.

v  A.M.Varaprasad and R. Krishnan, PZT-Polymer composites for hydrophone transducer applications, International Journal of Sensors and Actuators, Vol14, pp 361-368 (1988)

v  A M Varaprasad and Kenji Uchino, Dielectric and Piezoelectric studies of La doped PZT-Polymer composites, Ferroelectrics Letters Vol.7, pp 89-95 (1987)

v  A M Varaprasad and Kenji Uchino, Dielectric relaxation studies on PZT-PVDF

      Composites, Ferroelectrics Letters, Vol.7, pp 55-59 (1987)

v  K.Uchino, T.Hirose and A.M.Varaprasad, Accoustic emission in Piezoelectric/Electrostrictive actuators, Japanese Journal of Applied Physics, Vol.26-2 pp 167-170 (1987)

v  P.K.Mehta, B.D.Padalia, MVR Murthy, A.M.Varaprasad and K.Uchino, X-ray structural determinations on Sr and La doped PZT, Ferroelectrcs Letters, Vol.7 pp 121-129 (1987)

v  A.M.Varaprasad and J.H. Jagannath, Effect of Polymer composition on the permittivity and conductivity behaviour of PZT composites, IEEE Trans. on Ultrasonics, Ferroelectrics and Frequency control, Vol.33 pp 804 (1986)

v  A.M.Varaprasad and C.Radhakrishna Murthy, Magnetic hysteresis and crystallization studies on metallic glass alloy FeCoBSi, Bull. Mat. Sci. Vol.8 pp567-575 (1986)

v  A.M.Varaprasad, Rotational mode and Curie temperature in Tungsten bronze Ferroelectrics, Japanese J. of Applied Phys., Vol.24-2, pp 361-363 (1985)

v  J.K.Vij and A.M.Varaprasad, Dielectric anomalies in Barium Strontium Niobate, Ferroelectrics, Vol.38, pp 865-868 (1981)

v  A.M.Varaprasad, A.L.Sashimohan, D.K. Chakrabarty and A.B.Biswas, Structural and dielectric studies of some Barium Titanate based dielectrics, Vol.3 pp1-8 (1981)

v  A.M.Varaprasad, A.L.Sashimohan, A.B.Biswas and D.K.Chakrabarty, Structural and dielectric studies of some perovskite type titanates, Journal of Physics C Solidstate Physics, Vol.12 pp 465-472 (1979)

v  A.M.Varaprasad, A.L.Sashimohan, A.B.Biswas and D.K.Chakrabarty, Structural and dielectric studies of some niobate-titanate systems, Bulletin of Materials science, Vol2 pp239-249 1980)

v  A.M.Varaprasad, A.L.Sashimohan, A.B.Biswas and D.K.Chakrabarty, Dielectric and Infrared spectral studies of NaLaBaTiO3 systems, Physica Status Solidi (A) Applied Physics, Vol44 pp 787-791 (1977)

v  A.M.Varaprasad, The far infrared analysis of k-casein a molecular diode, Journal of Chemical Physics, Vol.77 pp 2809-2811 (1982)

v  A.M.Varaprasad, Is Kappa casein a molecular diode? Electronics and Power, Vol.27 pp 600 (1981)

v  A.M.Varaprasad, MRSI Medal lecture on 'Recent trends in Piezoelectric ceramics and composites (1990) Materials Research Society of India AGM, Feb 1990, NCL, Pune.

v  A.M.Varaprasad, Piezoelectric ceramic insulators - new applications, ERDA Proc.of seminar on Solid Insulating Materials, ERDA Seminar, Dec 1989.

v  A.M.Varaprasad and R.K.Singh, Preparation and Infrared spectral studies of PVDF Films, Indo-US_Japan workshop on electronic ceramics and materials, NCL, Pune (1989)

v  A.M.Varaprasad, On the structure morphology of Polysilicon, Proc. Ame. chem.Soc. Symp on Microelectronics Processing ,, Seattle, Washington, Mar 1983.

v  A.M.Varaprasad and D. Simpson, On the utility of Scanning Electron Microscopy in Material Science, Proc. European Electron Microscopy Techniques, 1984, p-14

v  A.M.Varaprasad and D.Simpson, (Industrial Consultancy Report) Diagnosis of device failure - QPL 82 transistors, Microelectronics and Electrical Engineering, Dept., Trinity college, Dublin, Ireland Sept.1982.

v  A.M.Varaprasad, Dielectric composites for transducer and actuator devices, IETE Technical review, Vol.9 pp 314-315 (1992)