Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
KNGD Modi engineering
College
1
Submitted by
Ashwani Singh
Machenical –A
Roll no-1319540829
Submitted to
R. M Yadav
Asst. ...
Contents:-
2
What are smart materials???
Types
Examples
Applications
Advantages and Dis-advantage
Smart Materials
What are Smart
Materials???
3 Smart Materials
Definition:-
4
Smart materials are designed materials that have
one or more properties that can be significantly
changed i...
Smart materials:-
5 Smart Materials
A smart fluid developed in labs at the
Michigan Institute of Technology6
Smart Materials
Major Types:-
7 Smart Materials
Major Types:-
8
Piezoelectric
Electrostrictive
Magnetostrictive
Shape memory alloys
Magnetocaloric
Fullerine
Smart M...
Piezoelectric:-
9
When subjected to an electric charge or a variation
in voltage, piezoelectric material will undergo som...
Piezoelectric :-
10
B
BackSmart Materials
Electrostrictive:-
11
This material has the same properties as
piezoelectric material, but the mechanical
change is propo...
12
The action of an electric field
signals the change in the
window's optical and thermal
properties. Once the field is
re...
Magnetostrictive:-
13
 When subjected to a magnetic field and vice versa (direct and
converse effects), this material wil...
Shape Memory Alloys
Shape Memory Alloys are metal
alloys which can undergo solid-
to-solid phase transformation
and can re...
Shape Memory alloy:-
15
Back
BackSmart Materials
Magnetocaloric materials:-
16
Magnetocaloric materials are compounds that
undergo a reversible change in temperature upon...
Magnetocaloric materials:-
17
BackSmart Materials
Fullerine:-
18
These are spherically caged molecules with carbon atoms at
the corner of a polyhedral structure consisting...
Applications of fullerenes:-
Superconductors
By doping fullerenes with three variable atoms, a
superconducting state can...
Examples
20 Smart Materials
Examples:-
21
Treated Paper
Thermo color Sheet
Precious Metal Clay (PMC)
Paper foam
Footwear
Etc.
Smart Materials
Chromogenic Materials
SMART MATERIALS
22
Smart Materials
Thermochromism:-
23
Thermochromism is the property of substances to
change color due to a change in temperature.
Smart m...
Photochromic Lens:-
24
 Smart materials are also used in photochromic lens.
 Photochromic lenses are lenses that darken ...
Electrochromic Materials
These materials change their optical behavior with
application of electrical voltage.
Their behav...
Electrochromic Materials
General materials used are:
 NiO;
 WO3;
 TiO2;
 Polyaniline;
 Polythiophene.
Major applicati...
Shape-Memory Polymers:-
27
Shape-memory polymers (SMPs) areShape-memory polymers (SMPs) are
polymeric smart materials tha...
Shape Memory Polymer:-
28
• made by nixing nickel and titanium
•T<TC, Martensitic phase-plastic state-
large strains can b...
Advantages and
Dis-Advantages
29 Smart Materials
Advantages of Smart
Materials:-
30
High energy density (compared to pneumatic and hydraulic
actuators)
Excellent bandwid...
Advantages:-
31 Smart Materials
Disadvantages of Smart Materials:-
32
Dropping people out of the labor
Not biodegradable
Environmental pollution
Expen...
Applications
33
 Smart Fabric;
 Smart Aircraft;
 Sporting Goods;
 Smart Dust;
 Reducing vibration
 helicopter blades...
34
Thank you
Smart Materials
35
Any Queries??
Smart Materials
36 Smart Materials
Upcoming SlideShare
Loading in …5
×

Smart material

7,231 views

Published on

ashwani singh PPt

Published in: Education
  • Be the first to comment

Smart material

  1. 1. KNGD Modi engineering College 1 Submitted by Ashwani Singh Machenical –A Roll no-1319540829 Submitted to R. M Yadav Asst. Professor Machenical dept. Smart Materials
  2. 2. Contents:- 2 What are smart materials??? Types Examples Applications Advantages and Dis-advantage Smart Materials
  3. 3. What are Smart Materials??? 3 Smart Materials
  4. 4. Definition:- 4 Smart materials are designed materials that have one or more properties that can be significantly changed in a controlled fashion by external stimuli, such as :- Stress; Temperature; Moisture; pH; Electric Fields; Magnetic Fields…… Smart Materials
  5. 5. Smart materials:- 5 Smart Materials
  6. 6. A smart fluid developed in labs at the Michigan Institute of Technology6 Smart Materials
  7. 7. Major Types:- 7 Smart Materials
  8. 8. Major Types:- 8 Piezoelectric Electrostrictive Magnetostrictive Shape memory alloys Magnetocaloric Fullerine Smart Materials
  9. 9. Piezoelectric:- 9 When subjected to an electric charge or a variation in voltage, piezoelectric material will undergo some mechanical changes. The best known example is electric cigarette lighter. Eg Bugger, Materials Used: Quartz, Rochelle Salt, Topaz, Bismuth Ferrite Smart Materials
  10. 10. Piezoelectric :- 10 B BackSmart Materials
  11. 11. Electrostrictive:- 11 This material has the same properties as piezoelectric material, but the mechanical change is proportional to the square of the electric field. Lead Magnesium Niobate (PMN) and its doped derivatives are classical electrostrictive materials. Smart Materials
  12. 12. 12 The action of an electric field signals the change in the window's optical and thermal properties. Once the field is reversed, the process is also reversed. The windows operate on a very low voltage -- one to three volts -- and only use energy to change their condition, not to maintain any particular state. LEAD LANTHANUM ZIRCONATE TITANATE(PLZT) Electrostrictive:- Smart Materials
  13. 13. Magnetostrictive:- 13  When subjected to a magnetic field and vice versa (direct and converse effects), this material will undergo an induced mechanical strain. Consequently, it can be used as sensors and/or actuators.  When subjected to a magnetic field, this material will undergo an induced mechanical change.  Consequently, it can be used as sensors.  Eg:TERFENOL-D (alloy of Terbium, iron(FE))  Rarest of the rare earth material. and hence very expensive  Smart Materials
  14. 14. Shape Memory Alloys Shape Memory Alloys are metal alloys which can undergo solid- to-solid phase transformation and can recover completely when heated to a specific temperature. These materials has two phases: Austenite- high temperature phase; Martensite- low temperature phase. Austenite TwinnedMartensite Detwinned Martensite 14 Smart Materials
  15. 15. Shape Memory alloy:- 15 Back BackSmart Materials
  16. 16. Magnetocaloric materials:- 16 Magnetocaloric materials are compounds that undergo a reversible change in temperature upon exposure to a changing magnetic field. These materials have applications in refrigeration. Smart Materials
  17. 17. Magnetocaloric materials:- 17 BackSmart Materials
  18. 18. Fullerine:- 18 These are spherically caged molecules with carbon atoms at the corner of a polyhedral structure consisting of pentagons and hexagons. These are usually used in polymeric matrices for use in smart systems. They are used in electronic and microelectronic devices, super-conductors, optical devices, etc. Smart Materials
  19. 19. Applications of fullerenes:- Superconductors By doping fullerenes with three variable atoms, a superconducting state can be achieved. Medical Atoms can be trapped in a buckyball, in order to create a biological sponge. HIV protease inhibitor A buckyball can be inserted in the HIV protease active site in order to stop replication. 19 Smart Materials
  20. 20. Examples 20 Smart Materials
  21. 21. Examples:- 21 Treated Paper Thermo color Sheet Precious Metal Clay (PMC) Paper foam Footwear Etc. Smart Materials
  22. 22. Chromogenic Materials SMART MATERIALS 22 Smart Materials
  23. 23. Thermochromism:- 23 Thermochromism is the property of substances to change color due to a change in temperature. Smart materials are used in all types of thermochromatic liquid crystals, leuco dyes, thermochromic papers, thermochromic polymers and thermochromic inks. Smart Materials
  24. 24. Photochromic Lens:- 24  Smart materials are also used in photochromic lens.  Photochromic lenses are lenses that darken on exposure to specific types of light, most commonly ultraviolet (UV) radiation.  Once the light source is removed (for example by walking indoors), the lenses will gradually return to their clear state. Smart Materials
  25. 25. Electrochromic Materials These materials change their optical behavior with application of electrical voltage. Their behavior is basically characterized by the amount of light they allow to pass through them. Transparent and looks like ordinary glass Application of small voltage turns it opaque (blueish and dark) SMART MATERIALS 25
  26. 26. Electrochromic Materials General materials used are:  NiO;  WO3;  TiO2;  Polyaniline;  Polythiophene. Major applications:  Smart Glass;  Light-transmissive devices for optical information and storage;  Rear-view mirrors;  Protective eyewear. SMART MATERIALS26 Smart Materials
  27. 27. Shape-Memory Polymers:- 27 Shape-memory polymers (SMPs) areShape-memory polymers (SMPs) are polymeric smart materials that have the ability topolymeric smart materials that have the ability to return from a deformed state (temporary shape)return from a deformed state (temporary shape) to their original (permanent) shape induced by anto their original (permanent) shape induced by an external stimulus (trigger), such as temperatureexternal stimulus (trigger), such as temperature change.change. Smart Materials
  28. 28. Shape Memory Polymer:- 28 • made by nixing nickel and titanium •T<TC, Martensitic phase-plastic state- large strains can be applied with little stress. •T>TC, Austenitic phase-memory phase-retains its original shape. •Actuation is caused by transforming the material from martensite to austenitic phase. This process causes enormous amount of stress, which can be used for actuation purpose. •Slow reaction time Smart Materials
  29. 29. Advantages and Dis-Advantages 29 Smart Materials
  30. 30. Advantages of Smart Materials:- 30 High energy density (compared to pneumatic and hydraulic actuators) Excellent bandwidth Simplified packaging Novel functions such as the huge volume change as a function of temperature exhibited by smart gels. Smart Materials
  31. 31. Advantages:- 31 Smart Materials
  32. 32. Disadvantages of Smart Materials:- 32 Dropping people out of the labor Not biodegradable Environmental pollution Expensive to produce Long term effects unknown Global crisis Smart Materials
  33. 33. Applications 33  Smart Fabric;  Smart Aircraft;  Sporting Goods;  Smart Dust;  Reducing vibration  helicopter blades;  Robotics;  Medical Surgeries;  Security;  And many others………………… Smart Materials
  34. 34. 34 Thank you Smart Materials
  35. 35. 35 Any Queries?? Smart Materials
  36. 36. 36 Smart Materials

×