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Conductive, High-Toughness Oxides Deposited by Plasma Spray - Physical Vapor Deposition (PS-PVD)
From
Tech Briefs, February 1, 2018, by John H. Glenn Research Center:
"Oxide coatings
deposited in Glenn Research Center's Plasma Spray-Physical Vapor
Deposition (PS-PVD) facility can be processed to be mechanically tough
(erosion-resistant) and electrically conductive at room temperature. The
electrically conductive phase contained within the oxide (MO2)
coatings is a metastable suboxide (MO) that has not been formed in
significant volume by any other known methods. Content of the
electrically conductive phase can be varied in addition to the
microstructure, which can be columnar, planar, or a combination of the
two depending on the processing conditions. Upon exposing the material
to moderate temperatures (>300 °C), the metastable phase is further
oxidized (to MO2) and the material becomes insulating, but retains its high toughness and microstructure."
READ FULL ARTICLE.
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Self-Healing Metal Oxides Could Protect against Corrosion
From MIT News, April 3, 2018 by David L. Chandler:
"MIT
researchers have found that a solid oxide protective coating for metals
can, when applied in sufficiently thin layers, deform as if it were a
liquid, filling any cracks and gaps as they form. The thin coating layer
should be especially useful to prevent leakage of tiny molecules that
can penetrate through most materials, such as hydrogen gas that could be
used to power fuel-cell cars, or the radioactive tritium (a heavy form
of hydrogen) that forms inside the cores of nuclear power plants.
The team used an environmental TEM (E-TEM) that allows the sample to be
studied in the presence of gases or liquids of interest.The researchers
demonstrated inside the E-TEM that the aluminum with its oxide coating
could be stretched to more than double its length without causing any
cracks to open up."
READ FULL ARTICLE.
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Nano-Architecting Metallic Glass
From Advanced Science News, March 15, 2018 by Sandra Kalveram:
"Nano-architecting is one design
strategy to create lightweight materials that can withstand the harsh
conditions in radiation-intensive applications, such as space. By
nano-architecting, a key dimension of a structure is kept at the
nanoscale without limiting the overall size of the structure, for
example a large lattice composed of beams with beam wall thicknesses on
the nano-scale.
Metallic glass is a candidate material for such
nano-architecting as it is strong, highly elastic, and can exhibit
deformability when the characteristic dimension of the metallic glass is
kept to the nano-scale. Metallic glasses have also been shown to
exhibit improved deformability when subjected to irradiation. In an
effort to exploit both these effects, researchers at Caltech fabricated
metallic glass nano-lattices and irradiated them."
READ FULL ARTICLE.
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Edges and Corners Increase Efficiency of Catalytic Converters
From
Deutsches Elektronen-Synchrotron (DESY, Germany), Research Centre of the Helmhotz Association, March 26, 2018:
"Catalytic converters for cleaning
exhaust emissions are more efficient when they use nanoparticles with
many edges. This is one of the findings of a study carried out at DESY's
X-ray source PETRA III. A team of scientists from the DESY NanoLab
watched live as noxious carbon monoxide (CO) was converted into common
carbon dioxide (CO2) on the surface of noble metal nanoparticles like those used in catalytic converters of cars.
"
READ FULL ARTICLE.
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High-Speed and On-Silicon-Chip Graphene Blackbody Emitters
From
Japan Science and Technology Agency (JST), March 29, 2018:
"
High-speed light emitters integrated
on silicon chips can enable novel architectures for silicon-based
optoelectronics. However, compound-semiconductor-based light emitters
face major challenges for their integration with a silicon-based
platform because of their difficulty of direct fabrication on a silicon
substrate. At Japan Science and Technology Agency, high-speed,
highly-integrated graphene-based on-silicon-chip blackbody emitters in
the near-infrared (NIR) region including telecommunication wavelengths
were developed. Researchers fabricated integrated two-dimensional array
emitters with large-scale graphene grown by chemical vapor deposition
(CVD) method and capped emitters operable in air.
"
READ FULL ARTICLE.
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Exploring the Thermoelectric Properties of Tin Selenide Nanostructures
From
the AIP Publishing, March 27, 2018 by AIP News Staff
:
"
Single crystal tin selenide (SnSe) is a
semiconductor and an ideal thermoelectric material; it can directly
convert waste heat to electrical energy or be used for cooling. When a
group of researchers from Case Western Reserve University in Cleveland,
Ohio, saw the graphene-like layered crystal structure of SnSe, they
recognized this material's potential to be fabricated in nanostructure
forms. They used a chemical vapor deposition (CVD) process to grow SnSe
nanostructures. Electric charges in a nanostructured tin
selenide (SnSe) thin film flow from the hot end to the cold end of the
material and generate a voltage.
"
READ FULL ARTICLE.
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Dragonfly-Inspired Nanocoating Kills Bacteria upon Contact
From
A*STAR Research (Singapore), March 28, 2018:
"
Studies have shown that the wings of
dragonflies and cicadas prevent bacterial growth due to their natural
structure. The surfaces of their wings are covered in nanopillars making
them look like a bed of nails. When bacteria come into contact with
these surfaces, their cell membranes get ripped apart immediately and
they are killed. This inspired researchers from the Institute of
Bioengineering and Nanotechnology (IBN) of A*STAR to invent an
anti-bacterial nanocoating for disinfecting frequently touched surfaces
such as door handles, tables and lift buttons. The zinc oxide
nanopillars can kill a broad range of germs like E. coli and S. aureus
that are commonly transmitted from surface contact.
"
READ FULL ARTICLE.
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Metal-oxide/Graphene Nanosheet Composite Exhibits Unprecedented Energy Storage Properties
From Nanowerk, March 27, 2018:
"Researchers at the International Center
for Materials Nanoarchitectonics (WPI-MANA), National Institute for
Materials Science (NIMS), Tsukuba, Japan, describe the synthesis of
superlattice-like MnO2/graphene 2D nanostructures that
exhibited the best figures of merit for energy storage reported to-date.
They have taken two types of 2D materials with differing properties and
formed an advanced composite material with synergistic characteristics
that are not exhibited by a single material.
"
READ FULL ARTICLE.
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Understanding ALD, MLD and SAMs as They Enter the Fab
From Solid State Technology, March 2018, by Barry Arkles, et al.:
"
Device and system technologies
across several industries are on the verge of entering the sub-nanometer
scale regime. This regime requires processing techniques that enable
exceptional atomic level control of the thickness, uniformity, and
morphology of the exceedingly thin (as thin as a few atomic layers) film
structures required to form such devices and systems.
Atomic layer deposition
(ALD) has emerged as one of the most viable contenders to deliver these
requirements. This is evidenced by the flurry of research and
development activities that explore the applicability of ALD to a
variety of material systems, as well as the limited introduction of ALD
TaN in full-scale manufacturing of nanoscale integrated circuitry (IC)
structures. Both the success and inherent limitations of ALD associated
with repeated dual-atom interactions have stimulated great interest in
additional self-limiting deposition processes, particularly Molecular
Layer Deposition (MLD) and Self- Assembled Monolayers (SAM). MLD and SAM
are being explored both as replacements and extensions of ALD as well
as surface modification techniques prior to ALD.
"
READ FULL ARTICLE.
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Very Thin Film Could Help Manage Heat Flow in Future Devices
From Purdue University, March 26, 2018 by Kayla Wiles:
"
Purdue University researchers have
demonstrated the ability of a thin film to conduct heat on just its
surfaces, identifying a potential solution to overheating in electronic
devices such as phones and computers. The researchers found that the
thinner the film is, the higher the thermal conductivity. They also
discovered that the ratio of thermal conductivity to electrical
conductivity at the surface of the topological insulator materials can
be more than 10 times higher than the Sommerfeld value, which is the
standard value known for most metals and semiconductors determined by
the Weidemann-Franz law.
"
READ FULL ARTICLE.
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Effects of the EU's REACH and RoHS Regulations on Optical and Filter Glass
From
SPIE Newsroom, April 31, 2018:
"
On 16 June 2017, the EU published two
commission-delegated directives (EU 2017/1009 and 1011) extending the
exemptions for optical and filter glass to July 2021. The optical glass
exemptions are: lead in ion colored optical filter glass types, cadmium
in optical glass types, and cadmium and lead in glazes used for
reflectance standards. Now is a propitious time to exclude optical
materials from the scope of EU-RoHS. This will require considerable
lobbying effort.
"
READ FULL ARTICLE.
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MicroLED Displays: The Patent Landscape Reflects the Dynamisms of the Sector
From
Solid State Technology, February 2018:
"
This year again, the Las Vegas
Consumer Electronics Show, 2018 edition allowed us to discover the
latest innovations in numerous fields including the microLED displays
sector. "The Wall", a 146" microLED TV powered by Samsung, has been the
most impressive announcement. The microLED display sector has been
deeply analyzed by Yole and KnowMade, a partner in the Yole
Group. The partners have made a detailed patent analysis titled:
Microled Displays: Intellectual Property Landscape. They identified key patents, technology nodes and players related to microLED technologies for display applications.
"
READ FULL ARTICLE.
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2018 AIMCAL R2R Europe Conference
June 4 - 7, 2018
Freising, Germany
Join us June 4 - 7 in Freising, Germany
for the 2018 AIMCAL R2R Europe Conference. The is the European premiere
roll to roll, web coating and finishing conference. Enjoy presentations
from top consultants and short courses brought to you by industry
professionals. Registration is now open.
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9
th International Conference on Fundamentals and Industrial Applications of HIPIMS
June 25 - 28, 2018 Sheffield, UK
HIPIMS 2018 will provide a forum for
presenting the latest research by scientists and engineers from
industry, engineering institutes and academia. Contributions will cover
fundamental scientific aspects as well as application-oriented research
and development. In addition, successful introduction to market of new
products utilizing HIPIMS will be addressed.
In addition to the technical program, there will be short courses and a technical exhibit.
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July 10 - 12, 2018
San Francisco, CA
Go Beyond SMART at SEMICON West, July 10-12
Connect, collaborate, and sharpen your
competitive edge. Immerse yourself in Smart Transportation, Smart
Manufacturing, MedTech, Big Data, IoT, and cognitive technologies that
are transforming the world. 700 exhibitors, 80 hours of programs, and an
expanded Meet the Experts Theater. This year's Expo is like no other.
San Francisco, CA. Register.
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Society of Vacuum Coaters Foundation
Founding Principle:
The Society of Vacuum Coaters recognizes that in
order to sustain its growth, it is important to attract young, well
trained individuals to the field of Vacuum Coatings.
The SVC Foundation
pursues this principle by providing scholarships
to well qualified students planning to enter fields related to vacuum
coatings, and/or providing stipends for travel expenses to attend the
annual SVC Technical Conference, usually to present technical papers.
The Society of Vacuum Coaters (SVC), the SVCF's founder, and AIMCAL, an
organization committed to advancing vacuum roll-coating technology, and
their members, provides support for the Foundation to pursue these
goals.
Since its inception in 2002, the SVCF has
awarded more than 50 scholarships and travel awards totaling over
$180,000 to students from 18 countries. Our support can really have an
impact in the life of these students; quoting a recent award recipient:
"Not only does the scholarship give the gift of
financial support and the possibility to continue learning, it also
gives those that have a passion for vacuum coating the blessing of
attending such a wonderful program [SVC TechCon] to network and further
their knowledge."
Inviting scholarship recipients to the SVC
TechCon is an important element of the overall strategy for attracting
new talent to our industry. Scholarship beneficiaries carry a special
identification on the TechCon badge and we encourage you to meet them
and make them feel welcome.
Scholarship Applications must be postmarked by November 30th of each year.
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Do You Have an Interesting Article to Share?
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Interested in sharing the latest news in vacuum coating technology?
Forward us a link to an article you want to share with the rest of the SVC readership to
svcinfo@svc.org
.
Purchase advertising space in this newsletter by contacting SVC at
svcinfo@svc.org
.
SVConnections Contributing Editors:
Carl M. Lampert, SVC Technical Director
Joyce Lampert
Society of Vacuum Coaters
PO Box 10628
Albuquerque, NM 87184
505.897.7743
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