An aerogel is solid with air pockets dispersed throughout. Aerogels are essentially the solid framework of a gel.A class of porous, solid materials that exhibit extreme material properties. Here, include contents are introduction, what is an aerogel?, types, synthesis, properties, advantages , disadvantage and application etc. this presentation paper is very simple and easy to understand about the aerogel material.

1. DEPARTMENT OF MECHANICAL ENGINEERING
Presentation
on
“AEROGEL MATERIAL”
BY
SONAM PALJOR
(PES1201702403)
“Aerogel is a material of future.”

2.  Introduction
CONTENTS
 What is aerogel?
 Types of aerogel
 Synthesis of aerogel
 Properties
 Advantages
 Disadvantages
 Application
 Conclusion

3. INTRODUCATION
Stands up to 2000 times greater load than its own weight.
 Nanostructured open pours solids.
 Made via sol-gel technology.
 Created by SAMUEL STEPHENS KISTLER.
 Solid with lowest known density.
Samuel Stephens Kistler was an American scientist
and chemical engineer, best known as the inventor of
aerogels, one of the lightest known solid materials.
Born: 26 March 1900, United States of America
Died: 1975
Education: Stanford University

4. WHAT IS AEROGEL?
 A class of porous, solid materials that
exhibit extreme material properties.
 An aerogel is solid with air pockets dispersed
throughout. Aerogels are essentially the solid
framework of a gel.

5. TYPES OF AEROGEL
 Silica
 Carbon
• Carbon aerogels are composed of particles with sizes in the nanometre range,
covalently bonded together.
• They have very high porosity(over 50%, with diameter under100 nm).
• Surface areas ranging between 400 to 1000 m²/g.
• Silica aerogel is the most common type of aerogel.
• The most extensively studied and used it.
• It is silica-based and can be derived from silica gel.
• Silica aerogel held entries in GUINNESS WORLD RECORDS for material
properties, including best insulator & lowest density solid.

6. Cont..
 Metal oxide
• Metal oxide aerogels are used as catalysts in various chemical reactions/
transformation for other materials.
• Aerogel made with aluminium oxide are known as alumina aerogels.
• Alumina aerogels are also being considered by NASA for hypervelocity
particle.
 Polymer
 Organic polymers can be used to create aerogels
 SEAgel is made of agar.
 Cellulose
 Cellulose from plants can be to create a flexible aerogel.
 Chalcogel is an aerogel made of chalcogens.
 Other

7. SYNTHESIS OF AEROGEL
“SOL-GEL PROCESSING”
 Final product
 Mixing of chemicals
 Gelation
 Drying

8. PROPERTIES
 Flexibility
 Low density
 Low thermal conductivity.
 Variable refractive index
 lightest
 High strength.

9. ADVANTAGES
 Aerogel is more expensive, but definitely the
best overall type of insulation.
 Flexibility
 Waterproof
 High Resistance

10. DISADVANTAGES
 High production costs.
 Health issues.
 Requires more chemicals and usually more time.

11. APPLICATION
 Thermal insulation
 Pharmacy.
 Electronic components.
 Foundry technology.
 Architecture.
 Space
 Sports wear

12. CONCLUSION
 Lightest and low density.
 Global market - 2011 $951 million, 2015 to 2020 $1598.6 million.
 Very low thermal conductivity.
 Melting temperature 1200°C.
So it can be said that Aerogels have certainly surprised us in many aspects and it has
gradually begun to fulfil a number of expectations, certainly for a material that is destined
to become one of the most important materials of the 21st century

13. REFERENCE
 Anjali Acharya, Vasudha A Gokhale, Deepa Joshi, “AEROGEL –A Promising
Building Material for Sustainable Buildings”, Chemical and Process Engineering
Research ISSN 2224-7467 (Paper) Vol.9, 2013.
 C. Buratti, E. Moretti, “Experimental performance evaluation of aerogel glazing
systems” Department of Industrial Engineering, University of Perugia, Via G.
Duranti 67, 06125 Perugia, Italy
 Tao Gao , Bjorn Petter Jelle , Stefan Jacobsen, Arild Gustavsen ”Aerogel-
incorporated concrete: An experimental study”, – SCIENCE DIRECT
 Optimizing insulation thickness and analysing environmental impacts of aerogel-
based thermal super insulation in buildings – SCIENCE DIRECT.

14. THANK YOU…!

15. PICTURES

16. HIGH THERMAL INSULATION
The most common aerogel, Silica aerogel,
feels like Styrofoam and is transparent
with a blue cast. Due to its thermal
insulation qualities, the crayons are
protected from melting.
DO YOU KNOW….

17. Super-high internal surface area
makes it an excellent thermal
insulator
DO YOU KNOW…
LOW THERMAL CONDUCTIVITY

18. A 2.5kg brick rests on top of a silica
aerogel. Though brittle, aerogels can
carry up to 2000 times its own weight.
DO YOU KNOW…
HARDNESS

19. Lightest man-made solid
Known to exist.
LIGHTEST
DO YOU KNOW…

20. THANK YOU….!