Tech Briefs Magazine - March 2022 - 35

TB Master Bond Ad 0322_EDIT.qxp_1/4 Page 2/17/22 3:33 PM Page 1
on noncoated fabrics. The copper alloy-coated fabric eradicated
over 99 percent of the pathogens within five minutes, which
was significantly more effective than control samples coated
with only copper.
Graphite Filled
One Part
Further tests indicate that the liquid metal copper-coated fabrics
demonstrate superior antimicrobial performance compared
to other copper-coated surfaces and two commercial antimicrobial
facemasks that rely on copper and silver, respectively.
The method could also work with metals other than copper,
such as silver. It is also a simple method, which should be relatively
straightforward to scale up for mass production.
For more information, contact Tracey Peake at tracey_peake@ncsu.edu.
Nanoprecipitates Toughen
Structural Alloys
Mechanical properties, such as strength and
ductility, can be improved for car, plane, and
building components.
Oak Ridge National Laboratory, Oak Ridge,
and University of Tennessee, Knoxville, TN
R
esearchers have found a way to simultaneously increase
the strength and ductility of an alloy by introducing tiny
precipitates into its matrix and tuning their size and spacing.
The precipitates are solids that separate from the metal mixture
as the alloy cools.
Ductility is a measure of a material's ability to undergo permanent
deformation without breaking. It determines, among
other things, how much a material can elongate before fracturing
and whether that fracturing will be graceful or catastrophic.
The higher the strength and ductility, the tougher the material.
If structural materials could become stronger and more
ductile, components of cars, planes, power plants, buildings,
and bridges could be built using less material. Lighter-weight
vehicles would be more energy-efficient to make and operate
and tougher infrastructure would be more resilient.
700 °C
Epoxy EP5G-80
NOT PREMIXED AND FROZEN
FOR BONDING, STATIC DISSIPATION
& EMI/RFI SHIELDING
THERMALLY CONDUCTIVE
2.88-3.46 W/(m*K)
ELECTRICALLY CONDUCTIVE
Volume resistivity, 75°F
5-15 ohm-cm
NASA LOW OUTGASSING
Hackensack, NJ 07601, USA ∙ +1.201.343.8983 ∙ main@masterbond.com
www.masterbond.com
Free Info at http://info.hotims.com/82319-736
DECIDEDLY UNSEXY.
ABSOLUTELY ESSENTIAL.
Pressure differentials are an electronics killer.
Compensate for variable temperature induced pressure
differentials that threaten your enclosed electronics with
death by moisture and dust.
NEW
DA 284 Vent Plug Snap-In
IP66 rated | Available in stainless steel and aluminum
21 °C
Protect against moisture and dust intrusion
Allow humidity to escape
Increase airflow
Install easily
(Top to bottom): Alloys were made without nanoprecipitates, with coarse
nanoprecipitates, or with fine nanoprecipitates to assess effects of their
sizes and spacings on mechanical behavior. (Photo: Michelle Lehman/
ORNL, U.S. Dept. of Energy)
Tech Briefs, March 2022
284SNAP.STEGO-USA.COM
Free Info at http://info.hotims.com/82319-737
35
TB Materials Coatings 0322_1.indd 35
Cov
ToC
2/17/22 4:08 PM
FINE
COARSE
NONE
http://info.hotims.com/82319-736 http://info.hotims.com/82319-737 http://info.hotims.com/82319-780
Tech Briefs Magazine - March 2022

Table of Contents for the Digital Edition of Tech Briefs Magazine - March 2022
