World’s Strangest

Your source for the strangest things around!

Super Tiny Giraffe

When Shaahin Amini analyzed nickel, aluminum and carbon mix using scanning
electron microscopy, the UC Riverside graduate student was surprised to
see a tiny giraffe staring back! The image was so good it won the Materials
Research Society’s 2012 Science as Art competition:

Scanning electron microscopy (SEM) image depicts a baby giraffe formed
within a jungle of Ni-Al-C dendrites. As the molten alloy was being
solidified inside a graphitic crucible, the melt was decanted, leaving
behind a little dendrite wetted by a thin molten blanket. As the jungle
got colder, the blanket froze and rejected carbon which eventually crystallized
as a graphite cover. Upon further cooling, the graphitic cover wrinkled,
due to its thermal expansion coefficient mismatch with metallic substrate,
creating a faceted network of creases resembling the familiar skin patches
of a giraffe. – Shaahin Amini and Reza Abbaschian, Department of Mechanical
Engineering, University of California Riverside

Link | YouTube

Post Metadata

November 11th, 2012

Stranger to the World


Leave a Reply