What is Smart material?
'''Smart materials''', called also intelligent or responsive 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 (mechanics)|stress]], [[temperature]], [[moisture]], [[pH]], [[Electricity|electric]] or [[Magnetic field|magnetic fields]], [[light]], or [[chemical compound]]s. [[Category:Building materials]] [[Category:Metallurgy]] {{tech-stub}}