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Feb 19, 2016 0    
Fun with nanomaterials
Squeezing and Stretching Nanomaterials

Areas of intense ultrasound waves (red) alternately squeeze and stretch a thin film 100 million times a second. This squeezing and stretching takes place over a very small area – the picture is about the width of a single strand of hair.

Squeezing and stretching materials only a few atoms thick can result in dramatic changes. A non-magnet can sometimes transform to a magnet when squeezed hard enough, or a stretched superconductor can transform to a non-superconductor.  We can use this to rapidly change a material between two states.

Areas of intense ultrasound waves (red) alternately squeeze and stretch a thin film 100 million times a second.
Fig. 1 (Click to enlarge) Areas of intense ultrasound waves (red) alternately squeeze and stretch a thin film 100 million times a second.
Squeezing and stretching materials only a few atoms thick can result in dramatic changes.
Fig. 2 (Click to enlarge) Squeezing and stretching materials only a few atoms thick can result in dramatic changes.
TAGS: #nanomaterials    
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