Annual Report 1982-84

 

CONTENTS

 

PREFACE

 

 

 

DIVISION OF STANDARDS

 

 

 

Introduction

1

 

 

MECHANICAL, THERMAL & OPTICAL STANDARDS

 

 

 

Standards of Length & Angle

2

Dimensional Metrology

2

Standards of Mass Volume & Density

3

Standards of Force & Hardness

4

Standards of Pressure

4

Standards of Vacuum

4

Standards of Temperature

5

Optical Radiation Standards

6

Standards of Acoustics

7

 

 

ELECTRICAL & ELECTRONIC STANDARDS

 

 

 

Standards of Time & Frequency

7

Standards of DC, EMF, Resistance & Current

7

Capacitance, Inductance and AC Resistance Standards

8

AC, L.F. & H.F. Standards

9

Microwave Standards of Power, Frequency, Noise Attenuation & Impedance

10

 

 

MATERIALS CHARACTERIZATION DIVISION

 

 

 

Introduction

12

Characterization of Materials by Chemical Methods

13

Characterization of Materials by Spectroscopic Methods

13

Characterization of Materials by EPR Spectroscopy

15

Characterization of Materials by X-ray Diffraction & Fluorescence Techniques

15

Characterization of Materials by Transmission & Scanning Electron

18

    Microscopy and Electron Diffraction Techniques.

 

Characterization of Single Crystals regarding perfection and relevant Instrumentation.

20

Growth of Single Crystals, Characterization of Defects in Single Crystals

23

Characterization of Materials regarding Surface Area & Porosity                                               

23

 

 

CRYOGENICS & SUPERCONDUCTIVITY

 

 

 

Cryogenic Plants & Facilities

25

Superconductivity, Semiconducting Materials, Josephson Tunneling &

25

    Applications and Quantum Hall Effect

 

A-15 Superconductors through in-situ Technique

27

Preparation  Characterization and Application of Fine Electroceramics

27

 

 

UTILIZATION OF SOLAR ENERGY

 

 

 

Thermal Conversion

28

Studies on Polycrystalline Silicon for Photovoltaic Energy Conversion Phase II

29

 

 

APPLIED PHYSICS PROJECTS

 

 

 

Electrostatics and Electrophotography

31

Amorphous Materials & Thin Film Devices   

31

Display Devices 

32

Pilot & Demonstration Plant in Hydrostatic Extrusion & Material Synthesis

35

 

 

DIVISION OF MATERIALS

 

 

 

Introduction

36

Studies on Polycrystalline Silicon

36

Development of Conducting Ceramics & Ferrites

36

Ultrasonic Transducers, Materials & Devices

37

Development of Carbon Products

39

Development of Aviation Grade Brushes and Resinous Pitches for Carbon Products

40

Development of Carbon Fibres, Carbon - Carbon Composites & Glassy Carbons

41

Luminescent Materials & Devices

42

 

 

RADIO SCIENCE DIVISION

 

 

 

Introduction

43

Ground Based Facility for Environment Monitoring

44

Environment Hazards - Sodar Studies

45

Indian Middle Atmosphere Programme (IMAP)

47

Satellite Radio Beacon Study

50

SROSS Aeronomy Satellite

51

Stratospheric Ionization

51

Planetary Ionospheres and Ionospheric Studies using Incoherent Scatter Radar

52

Tropospheric & Ionospheric Communications

53

Ionospheric and Neutral Atmospheric Modelling

59

 

 

OTHER R&D PROJECTS

 

 

 

Theoretical Investigations in Condensed Matter Physics

60

Instrument Maintenance & Allied Activity

60

 

 

SERVICE SECTIONS

 

 

 

Central Workshop

61

Glass Technology Workshop

62

        

 

APPENDICES

 

 

 

Papers Published

36

Technical Report/Books

73

Ph.D's Awarded

74

Significant Events

75

Symposia/Workshop/Training Courses 

76

Exchange Programme Visits

77

Advice & Consultancy

77

Collaboration with other Institutions/Agencies

77

Honours and Awards

78

Visits Abroad (Meetings/Conferences/Workshops Attended & Talks Given)

79

Patents Filed, Accepted and Sealed

80

Processes Released to Industry for Cornmercilization

80

Premia and Royalties of the Processes Released earlier and in Production

81

Receipts on Account of Testing/Calibration/Glass Fabricated and Other Charges

82

Staff Strength

83

Membership of Research Advisory Council

83

Membership of Executive Committee

84