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A D V A N C E D

M A T E R I A L S

&

P R O C E S S E S |

A P R I L

2 0 1 5

7

OMG!

OUTRAGEOUSMATERIALSGOODNESS

Are you working with or have you

discovered a material or its properties

that exhibit OMG - Outrageous

Materials Goodness?

Send your submissions to

Julie Lucko at

julie.lucko@asminternational.org.

PAINT CHANGES COLOR

WITH A CHARGE

LitCoat, Las Vegas, could revolu-

tionize the painting industry with its

new paramagnetic electroluminescent

paint, which changes color when in con-

tact with an electric charge. The new

color, called electroluminescence, also

gives off its own light. The basecoat ma-

terial, ELfarbe, is an environmentally

friendly nanocomposite polymer binder

system. It is used in all painting layers

and goes from the dielectric layer all the

way to the electroluminescent layer. For

the dielectric layer, ELfarbe is combined

with barium titanate powder, whereas in

the conductive layer it is combined with

graphene oxide or antimony-doped tin

oxide. In the electroluminescent layer,

ELfarbe is combined with phosphoric

pigment representing the color of a us-

er’s choice

. litcoat.com

,

elfarbe.com

.

PRINTING MUSICAL

INSTRUMENTS IN 3D

Before completing his medical de-

gree from the University of Connecticut

School of Medicine, real-life renaissance

man, Robert Howe, earned dual under-

graduate degrees in chemistry and mu-

sic through a joint program between

Case Western Reserve University and

the Cleveland Institute of Music.

Recently Howe has accelerated

his interest in studying music more

formally as Ph.D. candidate in UConn’s

School of Fine Arts. Along with his doc-

toral advisor, Richard Bass, Howe has

orchestrated a collaborative effort be-

tween musicians and engineers, using

technology typically exclusive to med-

ical science—micro-computed tomog-

raphy—to explore the makeup of 18th-

and 19th-century musical instruments.

Using the technology in this way

for the first time provides researchers

with precise measurements to within

thousandths of a millimeter for parts of

antique instruments such as the saxo-

phone and recorder. Their findings have

resulted in the unprecedented repli-

cation of instrument parts—using 3D

printing—that could allow instruments

hundreds of years old to be played once

again while providing security authenti-

cation for rare instruments held by col-

lectors and museums.

uconn.edu

.

THE HISTORY OF

PLASTIC MONEY

The Reserve Bank of Australia

(RBA) and CSIRO’s 20-year bank project

resulted in the polymer banknote—the

first ever of its kind, and the most secure

form of currency in the world. The proj-

ect commenced in 1968 and continued

until 1988 with the release of the A$10

bicentennial commemorative banknote.

Australia’s transition from the

pound to the dollar was a momentous

occasion. With cutting edge security

features such as watermarks and metal

thread, things couldn’t have been better

for the note-issuer, the RBA. But the new

notes were not infallible, and it didn’t

take long for counterfeiters to strike.

By the end of the year, a team of

amateurs from suburban Melbourne,

armed with simple office equipment

and a desire to make some money,

produced a batch of fake notes that

netted them almost A$800,000 (worth

A$9.6 million in 2013) worth of forger-

ies. Despite their initial success, author-

ities soon picked up on their activities

and the forgers went to jail in 1967.

After some preliminary planning,

the bank project began. Originally, sev-

en top Australian scientists were en-

listed to help the RBA develop a more

secure banknote. As well as being dif-

ficult to forge, the new notes were also

more durable than the traditional “rag

notes,” more environmentally friendly,

and less likely to carry dirt and disease.

These technical improvements were

made within the first 10 years of the

bank project, but behind-the-scenes

delays prevented the issue of these rev-

olutionary notes until the bicentennial

year 1988. In a defiant gesture to the

original counterfeiters, the first note is-

sued was a A$10.

www.csiro.au

.

Sina Shahbazmohamadi, who received

his Ph.D. fromUConn in 2013, worked

with Howe and Bass to develop a new

method for using micro-computed

tomography to examine antique wind

instruments and then create new parts

using 3D printing technology. Courtesy of

Sean Flynn/UConn Photo.

The first polymer banknotes. One side

symbolized European settlement and the

other, the original discovery and settle-

ment of Australia 40–60,000 years earlier.

Courtesy of RBA/Wikimedia Commons.

Are you working with or have you

discovered a material or its properties

that exhibit OMG - Outrageous

Materials Goodness?

Send your sub issions to

Julie Lucko at

julie.lucko@asminternational.org.