materials are materials that has properties that can be altered by making
change in the external conditions such
as temperature, mechanical stress, electric field, magnetic field, pH, moisture
properties that can be changed, are of different types like shape, size, electric
charge, magnetic moment, Colour, temperature, elasticity, stiffness, viscosity etc.
This changes are reversible and can be repeated many times. The property and
Its degree of variation Can be controlled by changing the external stimuli in a
are different types of smart materials such as
Quantum tunnelling composites
Shape memory alloys
PH sensitive materials
are the materials in which dimensions of the object can be changed by changing
the external electric field, and its electric charge distribution of the object
can be changed by applying mechanical stress. This change is reversible and can
be repeated continuously.
has various applications such as it is used to produce ultrasonic waves and
used in censors.
these materials the shape of the materials can be altered by altering the
external magnetic field around it and its magnetic moment can be changed by
external stress. These materials also used for the production of ultrasonic
waves and in worm motors, reaction mass actuators, electro hydraulic actuators
materials after changing its dimensions if we are increasing the temperature,
in a certain temperature it regains its own shape. Because of this property
shape memory alloys are used in making spectacle frames, triggers of sprinklers,
fire alarm systems etc.
colour of these halochromic materials will be changed when external ph changes.
Because of this property this is mainly used in paints in change in colour
indicates the corrosion of the material on which it is coated.
material’s colour is changed when the temperature in which it is exposed is
altered. Various materials shows various colour variations for variation in
temperature around it this materials are used in food packaging materials and
in battery strips.
material from the name itself we can know that the colour of the object changes
when it’s surrounding lightening is altered. This change may happen by even
changing the uv light exposure some of the materials shows permanent colour
change. This materials are used in safety markers, sun glasses and in many
are many types of smart materials that are used in a efficient way to reduce
many problems and to increase the ease of making, producing, manufacturing, storing
and sensing. There is a research going to incorporate smart materials in robots
having artificial intelligence so that it can respond to the external stimuli exactly
same as the humans hence making a big revolution in the coming generations.
Therefore this smart materials will be a smart revolution of our future.