smart materials

arch 5313 _ Digital AssemblagesInstructor _ David Newton

Petro N. Megits _ gdII Fall 2007

wired _ embedded

Smart materials _ materials that have one or more properties that can be significantly altered in a controlled fashion by external stimuli, such as stress, temperature, moisture, pH, electric or magnetic fields.

- Wikipedia

Wired / mechanical systems _ current systems of interactive / reactive / sensing architectural built components. A defined system of responses to stimulus.

Embedded intelligence systems _ the idealized concept of intelligent materials, where the material begins to define its parameters from a bottom up self-organizing system. Non- programmable response to stimulus.

TransmaterialBlaine Brownell – leader in exposing people to smart and ecologically responsive materials.

SensitileSpherical Photovoltaic systemsreuse of materials

http://www.poptech.org/popcasts/?lang=&viewcastid=34

the living _ http://www.thelivingnewyork.com/

living glass – http://www.thelivingnewyork.com/lg.htm

http://www.thelivingnewyork.com/Images/PopTech06_Brownell-short.mov

river glow – http://www.thelivingnewyork.com/rg.htm

show movie clip

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Nimish Biloria @ TU Delft, Netherlands

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Bamboostic Muscle Project – muscle actuators regulated by program responding to people and bamboo

in the vicinity.

http://youtube.com/watch?v=0uDWdyD5AYM

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Smart dust - The goal of the Smart Dust project is to build a self-contained, millimeter-scale sensing and communication platform for a massively distributed sensor network.  This device will be around the size of a grain of sand and will contain sensors, computational ability, bi-directional wireless communications, and a power supply, while being inexpensive enough to deploy by the hundreds. 

Piezoelectric - materials that produce a voltage when stress is applied.

http://youtube.com/watch?v=p3mj83qfO_U

Self repairing plastics - microcapsules, which were used by Scott White of the University of Illinois to create a self-repairing plastic. His group inserted tiny beads of "healing agent" into a material. The agent is activated by impact, like a glow stick, to patch up any fractures.

Anti-smart dust _ http://youtube.com/watch?v=fyM8zgYt30w

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Shape memory alloys - Thermo responsive materials where deformation can be induced and recovered through temperature changes. One way and two way shape memory.

http://youtube.com/watch?v=oakDTbZHdks

Halochromic - materials are commonly materials that change their color as a result of changing acidity. One suggested application is for paints that can change color to indicate corrosion in the metal underneath them.

Chromogenic systems - change color in response to electrical, optical or thermal changes. These include electrochromic materials, which change their color or opacity on the application of a voltage (e.g. liquid crystal displays), thermochromic materials change in color depending on their temperature, and photochromic materials, which change color in response to light - for example, light sensitive sunglasses that darken when exposed to bright sunlight.