सीएसआईआर-केंद्रीय काँच एवं सिरामिक अनुसंधान संस्थान

CSIR-Central Glass & Ceramic Research Institute

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सीएसआईआर-केंद्रीय काँच एवं सिरामिक अनुसंधान संस्थान

CSIR-Central Glass & Ceramic Research Institute

Specialty Glass Technology

Overview

  • Specialty Glass development and production constitute one of the major activities in CGCRI in view of their demand in the country for strategic applications. The main important variety of glass, which is currently either being produced for the Department of Atomic Energy are high density Radiation Shielding Window (RSW) glass. Starting from lab scale development, CGCRI has ventured into establishing pilot scale facility for technology demonstration and producing the materials to meet indigenous demand. Radiation Shielding Windows used in nuclear installations, are viewing devices, which allow direct viewing into radioactive areas while still providing adequate protection to the operating personnel. They are manufactured utilizing various types of glass blocks in densities from 2.5 g/cc to 5.2 g/cc. Glass blocks of 2.5 gm/cc are borosilicate type whereas the higher density glasses are based on PbO-SiO2-K2O system containing PbO in varying amounts. The density increases with increase in the content of lead in the glass. The glass blocks are stabilized against damage from radiation by introducing cerium in varying levels. The combination of glasses to be used in each window is worked out depending on the radiation shielding requirement and also for achieving optimum optical characteristics. Considering the essentiality of developing an indigenous technology to make the country self-sufficient for this critical item, CGCRI has taken up a major programme with the aim of achieving total indigenization in lead glasses required for RSWs under a MoU with BARC. As a logical extension to the lab-scale success, BARC and CGCRI, entered into an agreement towards attaining pilot scale indigenous manufacturing capability for producing larger size glass slabs. Under the terms of this agreement, CGCRI was required to not only scale up the high density glass production but also include in the manufacturing range medium density (3.9 gm/cc) glass blocks. CSIR-CGCRI has developed both un-stabilized and CeO2 stabilized RSW glasses of different sizes. Pt pot and bottom pouring technology (an indigenous technology) successfully demonstrated and pilot scale facility established for RSW glass blocks of sizes up to 400×400×100 mm and 700×700×35 mm. The reproducibility and reliability achieved in the aforesaid technology.
  • Management of radioactive wastes is an important issue that needs to be resolved if nuclear power is to make a significant contribution to the country’s power requirement.. The need is to immobilize high level radio-active liquid waste (HLW) within a molecular structure so that they will not come out of the structure and be released to the ambience. Glass has emerged as the material of choice for immobilization due to its unique random network structure. The glass bead in the five component borosilicate glass matrix comprising of SiO2-B2O3-Na2O-Fe2O3-TiO2 with the impurity level of chloride and sulphate less than 200 ppm is a critical material required for management of radioactive waste in a closed nuclear fuel cycle that is followed by India and has been indigenously developed by CSIR-CGCRI in the form of spherical shaped bead of desired sizes having stringent physical, chemical and mechanical properties. It functions as feed base glass to produce vitrified product during Immobilization of Radioactive Waste. In this process, glass beads with specific composition are fed into a high temperature Joule Melter along with HLW in a predetermined ratio to make the product glass with the desired properties. This ensures confinement of the radio isotopes in a stable matrix and safe disposal with no threat to the environment. The innovation provides waste volume minimization, recovery and recycles of valuables during nuclear waste immobilization and is of significant importance for the country’s nuclear power program. The material is now being commercially produced by M/s H. R. JOHNSON, Mumbai using this technology to meet the requirement of Department of Atomic Energy. The development of the technology is a significant step forward towards country’s self reliance in this important strategic sector. Till date around 42 MT of material of varying compositions had been supplied to the vitrification plants in Tarapur and Kalpakkam Atomic Power Stations. The demand is going to increase with the waste management being introduced to other units in the country. The success has brought a considerable recognition for CGCRI and CSIR as a whole for its contribution towards nuclear program of the country.Based on the successful commercialization of the aforesaid technology and utilization of the material for nuclear waste immobilization in DAE’s ancillary units at Trapur and Kalpakkam, DAE has now shown keen interest to the support of CGCRI in multi facet manner to sustain their nuclear program. The followings are the significant information in this direction:
  • Special Glass Nodules For Nuclear Waste Immobilization: Agreement for 7 Component Borosilicate Glass:
  • New Development on Low Melting High Sodium Content (Na2O: 23 wt%) Glass Beads:

ART OBJECTS DEVELOPED AT SIDC, CGCRI, KOLKATA

 

Areas of Research

  • Specialty Glasses for Nuclear Hot Cell application
  • Specialty Borosilicate Glass Beads for Immobilization of Nuclear Waste

Technology Developed

TECHNOLOGIES DEVELOPED

Technologies available/ Developed and Transferred:


Technology Developed and Transferred:

  • Manufacturing Technology for Commercial Production of Five Component Borosilicate Glass bead (Composition – 1 with Na2O > 10 wt. % but <15 wt. %)


  • Manufacturing Technology for Commercial Production of Five Component Low Sodium content Borosilicate Glass Bead (Composition – 2 with Na2O < 10 wt. %)
  • Manufacturing Technology for Commercial Production of Five Component High Sodium content Borosilicate Glass Bead (Composition – 3 with Na2O> 20 < 23 wt. %)
  • Manufacturing Technology for Commercial Production of Seven Component Borosilicate Glass bead

Shri Kamal Dasgupta, DIRECTOR, CSIR-CGCRI shake hand with Ms. Anita Shah Alella, IFA, NRB, DAE/BARC AND Mr. M S Sonavane, S.O ‘H’, NRB, DAE after exchange of MoU document entitled “Development of Seven Component Borosilicate Glass Beads”
The signing took place on July 22, 2014 in Atma Ram Committee Room at CGCRI, Kolkata

  • DELIVERY OF 72 MT BOROSILICATE GLASS BEADS OF VARYING COMPOSITION TO BARC, DAE

Projects

Ongoing Projects

Sl. No. Title of the Project Duration Source of Funding Principal Investigator Co-Investigator (s)
1. Manufacturing, Inspection, Testing and Supply of 5.2g/cc Stabilized Lead Glass Slabs of Size 400 mm X 200 mm X 100 mm to BARC, Mumbai (Project No: SSP 0145).. 2015 – 2019 NRB, BARC (Deptt. of Atomic Energy, GoI) Mr. Sitendu Mandal Dr. Ranjan Sen
Mr. Ashim Kumar Chakraborty
2. Manufacture, Testing and Supply of special glass powder in the form of Nodules 2-6 mm dia. with technical grade powder [Special Glass Nodules for Encapsulation of Nuclear Waste] (Project No: SSP 0136). 2009 Onwards NRB, BARC (Deptt. of Atomic Energy, GoI) Mr. Sitendu Mandal Mr. Alok Roy Chowdhury
3. Technical Service Project for Testing and Quality control of glass Frit manufactured by M/s H R Johnson(HRJ) (Project No: TSP 0101) 2016 Onwards M/s H R Johnson(HRJ) Mr. Sitendu Mandal Mr. Shibasish Barik

Completed Projects

Sl. No. Title of the Project Duration Source of Funding Principal Investigator Co-Investigator (s)
1 Development of manufacturing technology and supply of Radiation shielding Window (RSW) Glass blocks to BARC/ DAE [High Density (D=5.20 g/cc stabilized and un stabilized glass) Radiation Shielding Window Glasses for Hot Cell Application]: (Project No. GAP 010309) 2004 – 2015 NRB, BARC (Deptt. of Atomic Energy, GoI) Dr. Ranjan Sen Mr. Sitendu Mandal
2 Development of Seven Component Borosilicate Glass Beads for Nuclear Waste Immobilization (Project No: GAP 0147) 2014-2016 NRB, BARC (Deptt. of Atomic Energy, GoI) Mr. Sitendu Mandal Mr. Santanu Sen
3 State Initiated Design Centre (Project No: GAP 0903) (CSIR-CGCRI) 2005-2010 Development Commissioner (Handicraft), Ministry of Textiles, New Delhi, Govt. of India Mr. Sitendu Mandal

Divisional Facilities


UTM (INSTRON 5500R), Load Cells:100N (For Fibers and Fibrous Material Testing), 1kN, 100kN; Accuracy:±1%, High Temperature Testing Capability:1400?C with 4-point Bend Fixture

Hysitron Nanoindenter (Triboindenter Ubi 700, Hysitron Inc., USA) with Nanoindentation, Scanning Probe Microscopy and Nanotribology Facilities; Load Range 1-12,000 micro-N, Depth Resolution:0.04nm, Load Resolution: 1nN.

Split Hopkinson Pressure Bar apparatus (REL Inc. USA)

Fischerscope Nanoindenter (H100XYp, Fischer, Switzerland), Load Range:0.4-1000 mN, Depth Resolution:1 nm, Load Resolution: 0.2micro-N.

Vicker’s Hardness Tester (LV 700, LECO, USA), Load Range 30 gf to 30Kgf, resolution:0.1micro-m.

Scratch Tester TR-102-M3 (Ducom, Bangalore, India) Load Cells 2-20N, 20-200N, Accuracy ±1%, AE Frequency:100-450 Peak Frequency:450 kHz, Speed variable:100-1000 micro-m.s-1

Inverted Optical Microscope (U-LH75XEAPO, Olympus, Japan), Magnification:5-100X, (Reflection and Transmission Mode), Nomraski Interference Contrast, Image Analysis Facility Available

Spin Coater (Model No: 121014, Delta Scientific, Kolkata, India), Maximum RPM-15000

Polishing and Grinding Machine, (Struers A/S, Denmark)

Cutting Machine (Struers A/S, Denmark)

Centrifuge – Max RPM 15000 (Remi, India)

Ultrasonic Cleaner, Takashi, Japan

Magnetic Stirrer (Remi, Kolkata)-1, IKA RH Digital (Germany)-1

pH Meter (Systronics, India)

Sintering Furnace 1: Muffle Furnace, Maximum working temperature (16000C), Max-17000C, Naskar & Co., Kolkata, India

Sintering Furnace 2: Muffle Furnace, Maximum working temperature (13000C), Max-14000C, M/s Jay Crucibles, Kolkata, India

Sintering Furnace 3: Muffle Furnace, Maximum working temperature (16000C), Max-17000C, M/s Naskar & Co.,, Kolkata, India

Sintering Furnace 4: Tube Furnace, Controlled Atmosphere, Maximum working temperature (5000C), Max-6000C, M/s LabthermIndia Kolkata, India

Sintering Furnace 5: Muffle Furnace, Maximum working temperature (5000C), Max-10000C, M/s Naskar and Co., Kolkata, India

Polishing and Grinding Machine, (Struers A/S, Denmark

Semi-Automatic Press (10 Tonnes, Carver, USA)

X’PertPro MPD (PANalytical) Facility

X-Ray Florescence (XRF) Spectrometer (PANalytical) Facility

HERZOG, Hydraulic Press, TP 20P, Machinenfabrik, Germany

Planetary Monomill, Pulverisette GmBH, Germany

Field Emission Scanning Electron Microscope, Supra 35 VP, Carl Zeiss, Germany, 30kV, Image Resolution-1.5 nm, Energy Resolution~133 eV

Field Emission Scanning Electron Microscope, Zigma, Carl Zeiss, Germany, 30kV, Image Resolution-1.3 nm, Energy Resolution~127 eV

Coating Unit (SC7640, QUORUM, UK)

Coating Unit (Scan Coat 6, Edwards, UK)

Vacuum Evaporator (Hitachi, Japan)

RF/DC Magnetron Sputter Coater (Hind Hi-VAC, Banaglore, India)

Technical/Support Staff

Name Designation Expertise
Mr. Partha Sarathi Das

 

Senior Technical Officer(3)
Mr. Moti Lal Ram Senior Technical Officer(3)

Mr. Sanjib Samaddar
Sr. Technical Officer(2) Glass melting of different scale for R and D and production purposes, preparation of batch from small to high scale, operation of various types of glass-melting and annealing furnaces including Induction furnace and operation of plant for melting of specialty glasses, measurement of specific characterization of glass samples, procurement of utilities and consumables and other technical jobs.

Mr. Srikrishna Manna
Senior Technical Officer (2)

Mr. Sirshendu Ghorui
Senior Technical Officer (1) Operation & maintenance of various types of glass-melting and annealing furnaces including Induction furnace, oil fired furnaces for melting of specialty glasses. Technical supervision, operation & installation of allied machineries relating to specialty glass production activities at the pilot plant, carrying out experimental frit melting, preparation of drawing for light mechanical machineries and furnaces, making reports / presentation, preparation of raw / sintered batch, procurement of materials & equipments for glass production and processing. Procurement of utilities and consumables related to ongoing project activities.

Mr. Alok Roy Chowdhury
Senior Technical Officer (1) Operation & maintenance of various types of glass-melting and annealing furnaces including Induction furnace, oil fired furnaces for melting of specialty glasses. Technical supervision, operation & installation of allied machineries relating to specialty glass production activities at the pilot plant, melting of glass frit both for R & D and production purposes at industrial site, preparation of raw / sintered batch, procurement of materials & equipments for glass production and processing. Procurement of utilities and consumables related to ongoing project activities.

Mr. Mrinmoy Adhikary
Technical Officer Operation and maintenance of different types of furnaces, and machineries of Glass Design Centre. Installation and commissioning of furnaces, Sand blasting machine, Glass cutting, polishing and grinding machine of Glass Design centre. Various types of art glass design and mould preparing and other technical jobs relating to design activities of design centre. Testing of White ware body like AP, BD, Porosity, Water Absorption etc., White ware body preparation and Slip casting.

Mr. Shibasish Barik
Technical Officer Operation & maintenance of various types of glass-melting and annealing furnaces including Induction furnace, oil fired furnaces for melting of specialty glasses. Technical supervision, operation & installation of allied machineries relating to specialty glass production activities at the pilot plant, slumping & processing of glass blocks, carrying out experimental frit melting and its characterization, preparation of raw / sintered batch both for production & R&D scale. Procurement of utilities and consumables related to ongoing project activities.

Mr. Mihir Das
Senior Technician (2) Operation and maintenance of different types of furnaces, and machineries of Glass Design centre. Various types of art glass design and mould preparing and other technical jobs relating to design activities of design centre.

Mr. Pachu Gopal Palchowdhury
Senior Technician (2) Operation & maintenance of various types of glass-melting and annealing furnaces including Induction furnace, oil fired furnaces for melting of specialty glasses. Operation of allied machineries relating to specialty glass production activities at the pilot plant, experimental melting of glass frit for R & D in electrically heated raising hearth furnace, preparation of raw / sintered batch and other technical jobs

Mr. Ashok Kumar Guchait
Senior Technician (2) Operation & maintenance of various types of glass-melting and annealing furnaces including Induction furnace, oil fired furnaces for melting of specialty glasses. Operation of allied machineries relating to specialty glass production activities at the pilot plant, preparation of raw / sintered batch and other technical jobs

Mr. Mihir Kumar Ghatak
Senior Technician (2) Supervision and planning of specialty glass processing activities: Supervision during processing of specialty glass blocks at all stages, Inspection internally of various sizes of specialty glass blocks, Technical assistance during inspection of finished RSW glass blocks having varying dimensions in presence of dignitaries/officials representing BARC, Mumbai. Supervision for secured packing of the glass blocks for onward dispatch to BARC, Mumbai. Arrangement for dispatch related jobs, Preparation of reports and supporting documents
Mr. Goutam Ghosh

 

Technician (1)

Mr. Mansa Ram Baksey
Lab Attendant (2) Specialty glass processing related activities at all stages, Preparation of test glass samples for various purposes

Scholars/Students

To be updated soon.

Contact

Mr. Sitendu Mandal
Chief Scientist & Head

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