Facility Name
External users: registration to be carried out only through I-STEM portal
Additional information about sample and analysis details should be filled in the pdf form provided in the I-STEM portal under “DOWNLOAD CSRF”
Internal users (IITB): registration to be carried out only through DRONA portal
Additional information about sample and analysis details should be filled in the pdf form provided here.
Make
Novocontrol Technologies
Model
Germany, Concept 80
Facility Status
Working
Facility Management Division
Centre for Sophisticated Instruments and Facilities (CSIF)
.
Category
- Material Characterization » Electrical Characterisation
Booking Details
Slot Booking Link
Booking available for
Internal and External Both
Available Equipment/ Mode of use
Low/high temperature (-150°C to 700°C)
magnetodielectric measurements
piezoelectric measurements
ferroelectric loop measurements.
magnetodielectric measurements
piezoelectric measurements
ferroelectric loop measurements.
Facility Management Team and Location
Facility In Charge
Prof. Prasanna Kumar S Mural
Facility Operator
Ms. Ruchita Vadera
bds@iitb.ac.in
Facility Management Members
Prof. Ajay S. Panwar (HoD, MEMS, Ex-officio member)
Prof. Triratna P. Muneshwar
Prof. Abhijeet L. Sangle
Prof. Jyoti Seth
Prof. Srinivasan Ramakrishnan
Prof. Sankara Sarma V. Tatiparti
Department
Metallurgical Engineering & Materials Science (MEMS)
Lab Email ID
bds@iitb.ac.in
Facility Location
Room No. G003, Ground floor, Dept. of Metallurgical Engg. and Materials Science
Lab Phone No
022-2576-3607
Facility Features, Working Principle and Specifications
Features Working Principle
Analyzer:
- From 3MHz to 20MHz working on gain phase measurement method
- Permittivity, modulus, conductivity (AC), specific resistance (resistivity), tan δ, capacity, impedance, admittance, inductivity, measured temperature, measured time, measured AC volt, measured DC volt, measured AC current, measured DC current.
- Magneto dielectric measurement (For bulk and thin film sample)
- P-E loop measurement (For bulk and thin film samples)
- Piezoelectric measurement (only for bulk sample)
Sample Preparation, User Instructions and Precautionary Measures
Instruction for Sample Preparation
- Sample should be well polished and having smooth surface.
- Maximum of six samples will be accepted at a time for room temperature.
- Maximum of two samples will be accepted at a time with temperature measurement.
- Maximum sample dimension should be diameter of 3 cm and thickness 0.3 cm for Low frequency, and diameter 1 cm and 0.2 cm thickness for RF
- After applying silver paste (Conducting coating) to ceramics samples it should be heated at 150oC at least for one hour.
- User has to bring liquid nitrogen.
- Only one registration will be accepted at a time.
User Instructions and Precautionary Measures
- Liquid Nitrogen Requirement ( For Internal Users)
- Temperature-dependent BDS measurements require liquid nitrogen (LN₂) for cooling.
- Users are responsible for arranging and providing the required quantity of LN₂ for their experiment.
- The quantity of LN₂ depends on the selected temperature range and total measurement duration.
- The facility will estimate the required quantity after reviewing the measurement parameters provided by the user.
- Measurements will be scheduled only after confirmation of LN₂ availability.
- Note: The estimated LN₂ requirement will be communicated to the user before the experiment based on the requested measurement conditions.
Instructions for Registration for External users:
- Please apply through the I-STEM portal using the registration link provided.
- For temperature-dependent BDS measurements, please provide the following details before submitting your request:
- Frequency range
- Temperature range
- Temperature interval/step (e.g., every 5°C, 10°C, or 20°C)
- Based on the above measurement parameters, we will estimate the total measurement time and inform you of the required booking hours. Charges for temperature-dependent measurements are on an hourly basis
- you are requested to mention in your request letter that “We agree to acknowledge the Broadband Dielectric Spectrometer Central Facility of IIT Bombay when the data from the BDS lab is used in our papers/reports/thesis”. The information on such acknowledgements with appropriate reference should be communicated to BDS lab via email bds@iitb.ac.in . Kindly send the complete publication reference (Name of authors/ paper title/ Journal name/volume number/page number /date of issue of the publication etc).
Liquid Nitrogen (LN₂) Charges (Applicable for Temperature-Dependent BDS): (For External Users):
- Liquid nitrogen required for temperature-dependent BDS measurements will be provided by the facility, subject to availability.
- LN₂ will be charged at ₹12 per liter based on the estimated or actual consumption.
- Instrument usage charges are separate from LN₂ charges.
- The estimated LN₂ requirement will be communicated to the user before the experiment.
Results:
- After the sample analysis is complete the results will be sent by email
- The experimental data provided is only for research / development purposes. These cannot be used as certificates in legal disputes.
- Samples and payment should be sent preferably in the same cover. Samples will not be analyzed till payment is received.
Charges for Analytical Services in Different Categories
Usage Charges
| Broadband Dielectric Spectroscoру Facility | IITB internal users | Other Academic Institutes | National Labs | Industries and Consultancу | Start-up (SINE incubation) | Research Park | Monash IIT B | For Other countries | SAARCS countries & African Countries (Low-Income Countries) | |||
| (IITB TAs) | (IITB (nonTAs)) | (Academics) | (Industries) | (Academics) | (Industries) | |||||||
Room temperature (Per Sample) | INR 125 | INR 250 | INR 500 | INR 1250 | INR 2500 | INR 1250 | INR 1875 | INR 250 | INR 1250 | INR 2500 | INR 1250 | INR 2500 |
| Temperature Dependent (Per Hour) | INR 100/hr | INR 200/hr | INR 400/hr | INR 1000/hr | INR 2000/hr | INR 1000/hr | INR 1500/hr | INR 200/hr | INR 1000 | INR 2000/hr | INR 1000/hr | INR 2000/hr |
Applications
- Polymers, rubbers, liquid crystals, ferroelectrics, ceramics, Dielectric spectra, molecular relaxation and dynamics, glass transition.
- Pharmaceutical applications, characterization of drugs.
- Structural material properties like phase transitions, phase compositions, and crystallization processes
- Semiconductors, organic crystals: charge transport, activation energy, charge mobility.
- Civil engineering, characterization of concrete.
- Pharmaceutical applications, characterization of drugs.
- Structural material properties like phase transitions, phase compositions and crystallization processes
- Semiconductors, organic crystals: charge transport, activation energy, charge mobility.