Dr. PANDU RAMAVATH

1.    Fabrication of Transparent Spinel Honeycomb Structures by Methyl Cellulose based Thermal Gelation Processing 
P. Biswas, K. Rajeswari, P. Ramavath, Roy Johnson, H. S. Maiti
Journal of The American Ceramic Society 96 (2013) 3042–3045
2.    Quasi-static compression behavior of nickel oxide, nickel oxide: zirconia, nickel:zirconia and nickel foams 
Papiya Biswas, Pandu Ramavath, Chandhana Muraleedharan Nair, Madireddy Buchi Suresh, Nakula Ravi, Roy Johnson
Ceramics International 42(2016)10572–10578
3.    Effect of post CVD thermal treatments on crystallographic orientation, microstructure,
mechanical and transmission Properties of ZnS Ceramics
P. Biswas, R. Senthil Kumar, P. Ramavath, V. Mahendar, G. V. N. Rao, U. S. Hareesh and R. Johnson
Journal of Alloys Compounds, 496 (2010) 273-277
4.    Optical and mechanical properties of compaction and slip cast processed transparent polycrystalline spinel ceramics 
Pandu Ramavath, Papiya Biswas, Kotikalapudi Rajeswari, Madireddy Buchi Suresh, Roy Johnson, Gadhe Padmanabham, Chandrashekhar Sadasiv Kumbhar, Tapas Kumar Chongdar, Nitin Madhusudan Gokhale 
Ceramics International 40 (2014) 5575–5581
5.    Diametral Deformation Behaviour and Machinability of Methyl Cellulose Thermal Gel cast Processed Alumina Ceramics
P. Biswas, M. Swathi, P. Ramavath, K. Rajeswari, M. Buchi Suresh, Roy Johnson
Ceramic International, 38 (2012) 6115-6121.
6.    Effect of Sphalerite to Wurtzite Crystallographic Transformation on Microstructure, Optical and Mechanical Properties of Zinc Sulphide Ceramics
P. Ramavath, P. Biswas, R. Senthil Kumar, V. Mahendar, G. V. N. Rao, U. S. Hareesh and R. Johnson, Ceramic International, 37 (2011) 1039-1046
7.    Sonochemical Synthesis of Nano-Structured Hydroxyapatite with unique morphologies and Evaluation of Sintering Kinetics
Papiya Biswas, Bandhakavi Lakshmi Sindhura, Chandhana Muraleedharan Nair, Pandu Ramavath, Madireddy Buchi Suresh and Roy Johnson
Journal of Advances in Chemistry 11 (2015) 3789-3797
8.    Prediction and validation of buckling stress (σcrt) of the ceramic honeycomb cell walls under quasi-static compression
Pandu Ramavath, Papiya Biswas, Nakula Ravi and Roy Johnson
Cogent Engineering 3 (2016) 1168068 
9.    Compaction Curves: A Tool for Qualitative Evaluation of Quasi-static Compaction Behavior of Ceramic Powders
Pandu Ramavath, Papiya Biswas, P. Suresh Babu, P. Laxminarayana and 
 Roy   Johnson, The Australian Ceramic Society 51 (2015) 130-136
10.    Hot Isostatic Pressing of ZnS Powder and CVD Zinc Sulphide Ceramics and Comparative Evaluation of Physico-chemical, Microstructural and Transmission Properties 
Pandu Ramavath, Papiya Biswas, Roy Johnson, G. Jagan Reddy and P. Laxminarayana ,Transactions of Indian Ceramic Society 73 (2014) 299-302
11.    Experimental Investigation on Flowability and compaction behavior of Spray granulated submicron Alumina Granules
Abhisek Choudhary, Pandu Ramavath, Papiya Biswas, Nukula Ravi and Roy Johnson,ISRN Ceramics 2013 (2013) 1-6
12.    Transparent Polycrystalline Ceramics: An Overview
R. Johnson, P. Biswas, P. Ramavath, R.S. Kumar and G. Padmanabham
Transaction of Indian Ceramic Society, 71 [2] (2012) 73-85
13.    Fracture Behaviour of Chemical Vapour Deposited and Hot Isostatically Pressed
Zinc Sulphide Ceramics. 
P. Ramavath, V. Mahender, R. Johnson, Sweety Kumari and N. Eswara Prasad.  Materials Science and Engineering A 528 (2011) 5030–5035
14.    Flow properties of spray dried alumina granules using powder flow analysis technique.Pandu Ramavath, M. Swathi, M. Buchi Suresh, Roy Johnson, Advanced Powder Technology 24 (2013) 667–673
15.    Hydrolysis control of alumina and AIN mixture for aqueous colloidal processing of aluminium oxynitride, R.S.Kumar,U.S.Hareesh,P.Ramavath and Roy Johnson,Ceramic International 37,2583-2590,2011
16.    Compressive and flexural strength properties of ZnS Optical ceramics.
 P. Ramavath, N. Ravi, U.S. Hareesh, R. Johnson and N. Eswara Prasad
Transactions of the Indian Institute of Metal, Vol.63, issue 6, December 2010, pp.847-852
17.    Effect of primary particle size on spray formation, morphology and internal structure of alumina granules and elucidation of flowability and compaction behaviour.
Pandu Ramavath, R. Papitha, M. Ramesh, P. Suresh Babu, and Roy Johnson,
Processing and Application of Ceramics 8 [2] (2014) 93–99
18.    Development of Cordierite based Reticulated Foams with Improved Mechanical Properties for Porous Burner Applications.
   P. Biswas, K. Varaprasad, P. Ramavath, M.B. Suresh, A. K. Khanra and R.Johnson
    Transactions of the Indian ceramic society vol. 76, no. 1, pp. 1-6 (2017). 
19.    Effect of Room and High Temperature Compaction on the Optical and Mechanical Properties of  HIPed Transparent  Spinel Ceramics.P. Biswas,  P. Ramavath, R.Johnson ,Mantravadi Krishna Mohan, Chandrashekhar S.
Kumbhar,  Dinesh S.Patil,T. K. Chongdar, N. M. Gokhale, Advanced Engineering Materials 2017,Vol.19, issue 8, pp. 170011-1700118.
20.    Fabrication of IR Transparent Zinc sulphide plate by chemical vapour deposition (CVD).
Papiya Biswas,  Pandu Ramavath, RoyJohnson and Kurisetty Venkata Ravi, Indian Journal of chemical technology vol.23,September,2016 pp.400-404.
21.    3D printing of complex shaped alumina parts, S. Mamatha, P. Biswas, P. Ramavath, Dibakar Das and Roy Johnson, Ceramic International, vol.44, 16 (2018) pp.19278-19281
22.    Composition temperature dependent a few salient properties of lithium aluminate silicate low expansion glass ceramic” Barick presenjit, amit das, pandu ramavath, papaya Biswas, buchi suresh, dulal Chandra Jana, B.P.Saha. International journal of applied glass science. In press 2024 
 

    1. Zinc Sulphide Ceramics for Infrared Optics,  Roy Johnson, Papiya Biswas, Pandu  Ramavath,Yaswant R Mahajan, Handbook of Advanced Ceramics and Composites, Springer,cham,(2019)1-34

1. Development of a Direct-Drive Based Three –DOF Robot. Pandu Ramavath , Dhiraj Barma, S.K Saha, B. Seth  and D. Jaitly , Proc. of the    National Conference on Industrial Problems on Machines and Mechanisms, IIT Kharagpur, Feb.24-25, (2005) 67-74 

 2. Evolution of Micro-structure of ZnS Transparent Ceramics Processed through powder HIPing and CVD+HIPing Routes, Pandu Ramavath, Papiya Biswas, Roy Johnson and G. Jagan Reddy   and P.Laxminarayana,International Conference on Ceramic Science, 19-20th December,2013 (SNTI, Jamshedpur)

3. Vacuum Encapsulation of Sub-µm Alumina Powder and Densification by Direct Consolidation through Hot Isostatic Pressing, Pandu Ramavath, Papiya Biswas, Pappula   Laxminarayana, Roy Johnson  International Conference on Advance in Materials and Manufacturing, 8-10thDecember, 2016 

4. ‘Microstructure and mechanical properties of spinel compacts densified through hiping and sintering, Pandu Ramavath, Papiya Biswas, Roy Johnson, Pappula   Laxminarayana, International Conference on Ceramic & Advance Materials for Energy and Environment, 15-17th   December, 2015 at Bangalore (Karnataka), India

5. ‘Microstructure and mechanical properties of powder –hiped alumina and zirconia toughened alumina ceramics’ Pandu Ramavath, Y. S. Rao, Pappula Laxminarayana, Roy Johnson, International Conference on  Expanding Horizons of Technologies applications of Ceramics glasses,14-16th December,  2017 at Pune (Maharashtra), India 

6. Comparative Evaluation of Microstructural Features of Uni-axially and Hot Isostatically Pressed ZTA Ceramics, Pandu Ramavath, Pappula   Laxminarayana and Roy Johnson,National Conference on Trends in Science, Engineering & Technology, 2-3rd    February 2018 (NTSET-2018)

1. Process of Preparation for Zinc Sulphide freestanding article by Chemical Vapour Deposition (Indian Patent No: IN 200900517-i1)
2. A novel process for producing IR transparent polycrystalline alumina articles and the articles so produced (Patent Filed) (2012)

Details of Research Projects being implemented/ completed/ submitted by the Investigator Including Name of the Institute.

1. Project Title: Development of ZnS IR Transparent Domes

  Sponsoring agency: Research Centre Imarat, DRDO, Ministry of Defence 

Duration of Project: 3 years

Project Status: Project started in 2005 and completed in 2008.

Investigators:      Dr.Roy Johnson – Principal Investigator 

                                     Dr. U.S. Hareesh – Co-Investigator 

                                     Mr. Pandu Ramavath – Team member 

                                      Mrs. Papiya Biswas – Co-Investigator

 2. Project Title: Development of Transparent Spinel Ceramics for Vehicle Armour Applications 

Sponsoring agency: Navel Metallurgical Research Laboratory (NMRL, Mumbai) DRDO, Ministry of Defence 

Project Status: Project has been successfully completed in 2014.

Investigators:     Dr. Roy Johnson – Principal Investigator 

     Mr. Pandu Ramavath- Co-Investigator

     Mrs. Papiya Biswas – Co-Investigator

3. Project Title: Development of Transparent Spinel IR Lenses and Domes for High Mach number Missile Applications for PGAD-DRDL

   Sponsoring agency: Research Centre Imarat, DRDO, Ministry of Defence 

     Duration of Project: 2 years

   Project Status: Project has been successfully completed in 2016

   Investigators:     Dr.Roy Johnson – Principal Investigator 

      Mrs. Papiya Biswas – Co-Investigator

        Mr. Pandu Ramavath – Co-Investigator

 4. Project Title: Development of SWIR Spinel dome

Sponsoring agency: IRDE, DRDO, Ministry of Defence 

Duration of Project: 1 years

   Project Status: Project has been successfully completed in 2015

   Investigators:     Dr.Roy Johnson – Principal Investigator 

     Mr. Pandu Ramavath – Co-Investigator

     Mrs. Papiya Biswas – Co-Investigator

  5. Project Title: Development of multi-mode spinel dome 

Sponsoring agency: Research Centre Imarat, DRDO, Ministry of Defence 

Duration of Project: 1 years

   Project Status: Project has been successfully completed in 2016

   Investigators:     Dr. Roy Johnson – Principal Investigator 

                                Mr. Pandu Ramavath – Co-Investigator

                                Mrs. Papiya Biswas – Co-Investigator

  6. Project Title: Direct powder consolidation Shaping of Simple & Complex shaped Ceramic parts through HIPing 

In-house project:

Duration of Project: 3 years

   Project Status: Project started in 2015

   Investigators:               Dr.Roy Johnson – Principal Investigator 

                                           Mr. Pandu Ramavath – Co-Investigator

7. Project Title: Limited production and supply of ZnS Domes as per Supply 

Orders (50 no.s ZnS domes)

Sponsoring agency: Research Centre Imarat, DRDL, Ministry of Defence 

Duration of Project: 1 years

   Project Status: Project has been successfully  completed in 2015

   Investigators:     Dr. Roy Johnson – Principal Investigator 

                                Mr. Pandu Ramavath – Co-Investigator

                                 Mrs. Papiya Biswas – Co-Investigator

 8.  Project Title: Sanitary napkin technology for Green-Dispo to Technology transfer to

       M/s Sowbal Aero thermic pvt ltd, Hyderabad    

Investigators:           Dr.Y.S.Rao – Principal Investigator 

                                  Dr. Pandu Ramavath – Project Member

  9. Project Title: Development of  Na-beta Al2O3 tubes for Na extraction for IGCAR

Investigators:           Dr.Y.S.Rao – Principal Investigator 

                                  Dr. Pandu Ramavath – Project Member

• Samples are supplied and project is completed 

   

    10. Project Title: Development of  NBA ceramics for Na-S battery applications

          RCI ,DRDO

Investigators:           Dr.Y.S.Rao – Principal Investigator 

                                 Dr. Pandu Ramavath – Project Member

• Samples are supplied and project is completed 

   

     11.  Project Title: Design and Development of Ceramic Honeycomb based Anti-mine

            boot inserts for defense applications

Sponsoring agency: DMSRDE-DRDO, Kanpur 

Project Status: Project has been successfully completed 2022 and Antimine boot ToT transfer to DMSRDE-DRDO, Kanpur

  Investigators: Dr.Roy Johnson – Principal Investigator                                         

                          Dr..Buchi Suresh – Co-Investigator

                          Dr. Pandu Ramavath – Project Member

    12. Project Title: Facility Establishment and Realization of Low Expansion

           Glass Ceramic (LEGC) (Consortium Project of RCI-DRDO-ISRO-VSSC-DST-ARCI)

    Project Cost: Rs.3484 Lakhs ( DRDO & ISRO) + ARCI ( Infrastructure, utilities,

     manpower)

     Sponsoring agency: CHT-OIDB

     Project Status: ongoing project

     Investigators:   Dr.BP.Saha- Project leader

                              Dr.Jana- Process Engineer1                                                         

                              Dr..Buchi Suresh – Process Engineer2 

                              Dr.Paiya Biswas- Quality Engineer

                              Dr.Presenjit barick- Project Member

                              Dr. Papiya Biswas – Project Member 

                              Dr. Pandu Ramavath – Project Member

  13. Project Title: Development and Scale-up of Indigenous Anode Supported Solid Oxide Fuel Cell Technology and Demonstration of Process Line (10 kW)(1kWx10)

   for Prototype Production (Consortium Project of CGCRI-CHT-OIDB-ARCI)

      Project Cost: Rs.1684 Lakhs

     Sponsoring agency: CHT-OIDB

     Project Status: ongoing project

     Investigators:  Dr..Buchi Suresh – Principal Investigator 

                             Dr. Papiya Biswas – Project Member

                             Dr. Pandu Ramavath – Project Member

                             Dr.AMIT DAS-  Project Member

Technology transfer:

 1. ZnS Dome LWIR+MWIR TOT for BEL, Bangalore

Technology transfer completed (Two technology transfer is completed)

2. Ceramic Honeycomb based Anti-mine boot inserts, Project has been successfully completed 2022 and Antimine boot ToT transfer to DMSRDE-DRDO, Kanpur