Smart Materials Application In defiance

Smart Materials Application In defiance.

Introduction:. Materials that can change one or more of its properties in response to an external stimulus. For example, the shape of the material will change in response to different temperature or application of electrical charge or presence of any pressure or any other substance. In conclusion, smart materials can change their state and therefore their properties, in response to an external pressure or temperature..

History. Most of smart materials have been found around 50 years ago, but they were not exploited to get the benefits which they have. There is now a huge variety of smart material with different special [properties that make particular material well suited for humankind..

Type of smart materials. Shape memory alloy Megnetostrerictive materials PH-sensitive polymer Halochromic materials Photo mechanical material Self healing material Bulletproof materils.

Self healing material. This type of materials are used in the automatic repair of composites to restore functionalities and structural properties. The best known self-healing materials have built-in micro capsules filled with a glue that can repair damage This material are needed when there are thoughts or feeling that interfere with daily activities and function in human body-says psychologists.

Example.

Use. Cars Big sized machines Satellite(movie : mission mars) Human body tissues.

Bulletproof materials. Nowadays we all are familiar with this word "bulletproof”. The names says materials which can defend our selves from bullet called bulletproof materials. In 20 th century, this word was not so common in India but in other country, they were used that type of material in military use only. But nowadays in India, this word is well known, and many scientists of India have made different gadgets with the help of this material like cars, vest, shields..

ExAMPLE.

USES. Full protected car Military vast Military tanks Rockets exposives.

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