<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">smart materials</topic></authority><related type="narrower"><topic>self-healing materials</topic></related><related type="narrower"><topic>self-cleaning materials</topic></related><related type="broader"><topic>materials by property</topic></related><variant type="other"><topic>adaptive materials</topic></variant><variant type="other"><topic>intelligent materials</topic></variant><variant type="other"><topic>materials, smart</topic></variant><variant type="other"><topic>responsive materials</topic></variant><variant type="other"><topic>senseable materials</topic></variant><variant type="other"><topic>smart material</topic></variant> <note xml:lang="en"><![CDATA[ Materials with adaptive capabilities that react to external stimuli such as load, heat, and vibrations. Examples of smart materials include self-healing concrete which releases reserves of a strong adhesive when under stress, mending cracks; shape-memory alloys and polymers which can undergo and reverse deformation by heat or stress thanks to pseudoelasticity; or chromogenic systems which change their color, such as sun glasses that darken when exposed to bright sunlight. ]]></note></mads>