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New Research Yields Super-Strong Aluminum Alloy
From
Purdue University, January 25, 2018:
"Researchers at
Purdue University have demonstrated how to create a super-strong
aluminum alloy that rivals the strength of stainless steel. The new
high-strength aluminum is made possible by introducing "stacking faults"
in the crystal structure. While these are easy to produce in metals
such as copper and silver, they are difficult to introduce in aluminum
because of its high "stacking fault energy. Meanwhile, so-called "twin
boundaries" consisting of two layers of stacking faults can form. One
type of stacking fault, called a 9R phase, is particularly promising.
Researchers at Rice University have now induced a 9R phase in aluminum
by introducing iron atoms into aluminum's crystal structure via
magnetron sputtering."
READ FULL ARTICLE.
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Engineers Create New Architecture for Vaporizable Electronics
From Cornell University, January 16, 2018, by Syl Kapacyr:
"Engineers
from Cornell and Honeywell Aerospace have demonstrated a new method for
remotely vaporizing electronics into thin air, giving devices the
ability to vanish - along with their valuable data - if they were to get
into the wrong hands. This unique ability to self-destruct is at the
heart of an emerging technology known as transient electronics, in which
key portions of a circuit, or the whole circuit itself, can discreetly
disintegrate or dissolve. And because no harmful byproducts are released
upon vaporization.
Cornell
engineers have created a transient architecture that evades other known
drawbacks by using a silicon-dioxide microchip attached to a
polycarbonate shell. Hidden within the shell are microscopic cavities
filled with rubidium and sodium biflouride - chemicals that can
thermally react and decompose the microchip. The thermal reaction can be
triggered remotely by using radio waves to open graphene-on-nitride
valves that keep the chemicals sealed in the cavities."
READ FULL ARTICLE.
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Smart Window Coatings for Room-Temperature Applications
From
Advanced Science News, January 21, 2018 by Maria E. Stournara:
"Vanadium dioxide (VO2) is
one of the promising thermochromic materials due to its reversible phase
transition and high efficiency in modulating IR transmittance. However,
its high transition temperature at 68°C has not allowed its use in
room-temperature applications.
To overcome these limitations
researchers at City University of Hong Kong fabricated a hybrid
thermochromic system by integrating VO2 coatings with plasmonic titanium nitride nanoarrays (VO2/TiN).
When properly excited by illumination, this smart coating blocks 70% of
the IR radiation at 28°C while showing good IR transparency at 20°C."
READ FULL ARTICLE.
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Metasurfaces Enable Improved Optical Lens Performance
From
Penn State University, February 8, 2018:
"Producing the perfect color images
often requires multiple, heavy lenses so that each color focuses in
exactly the same plane. Now Penn State engineers have developed a new
theory that solves the problem using a single thin lens comprised of
gradient index materials and metasurface layers to properly direct the
light.
The researchers thought to combine two technologies:
that of gradient-index (GRIN) lens, and metasurfaces - ultra-thin
optical layers with sub-wavelength features that manipulate the
wavefront in a desired manner. By spatially varying the material
composition inside the lens, one GRIN lens can perfectly focus two
colors. Then, by adding a metasurface to the GRIN lens, one layered lens
can perfectly focus all three colors and do the work of three
conventional lenses.
"
READ FULL ARTICLE.
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Scientists Discover Material Ideal for Smart Photovoltaic Windows
From Berkeley Lab, January 22, 2018, by Julie Chao:
"
Scientists at Lawrence Berkeley National
Laboratory (Berkeley Lab) have demonstrated a way for a photovoltaic
glass to also be reversibly thermochromic. Researchers discovered that a
class of inorganic halide perovskite has amazing phase transition
chemistry. It can essentially change from one crystal structure to
another when we slightly change the temperature addition of a little
water vapor. When the material changes its crystal structure, it changes
from transparent to non-transparent. The solar cell shows fully
reversible performance and excellent device stability over repeated
phase transition cycles without any color fade or performance
degradation.
"
READ FULL ARTICLE.
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The Dawn of Gallium Oxide Microelectronics
From
EurekAlert!, February 6, 2018, by American Institute of Physics
:
"
Microelectronics designers are always looking
to reduce excess power consumption and unnecessary heat generation.
Technologies in use today are already scaled close to their limits for
the operating voltage desired in many applications. Engineers at the Air
Force Research Lab (AFRL) outline a case for producing microelectronics
using gallium oxide.
The referenced article, "The dawn of gallium oxide microelectronics," authored by Masataka Higashiwaki and Gregg Jessen in Applied Physics Letters Feb., 6, 2018 (doi:10.1063/1.5017845)
mentions several techniques such as molecular beam epitaxy (MBE),
pulsed laser deposition, halide vapor phase epitaxy (HVPE), metalorganic
chemical vapor deposition, mist chemical vapor deposition (mist-CVD),
and low pressure chemical vapor deposition have been used for the
epitaxial growth of Ga2O3-based materials on both
native and non-native substrates. To date, MBE and HVPE have shown the
best control over electron density.
"
READ FULL ARTICLE.
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SEMI Forms Technology Communities to Speed Industry Collaboration and Innovation
From
SEMI, February 6, 2018, by Heidi Hoffman:
"
SEMI continues to increase its impact on the
success of the electronics industry supply chain. As one step in that
process, SEMI President & CEO Ajit Manocha has formed a new group, Technology Communities, to better collaborate, align, and enhance all of SEMI's technology-focused activities by operating them under one umbrella.
The Technology Communities encompasses the Fab Owners Alliance (FOA), FlexTech, and MEMS & Sensors Industry Group (MSIG), as well as the SEMI Standards organization. It supports key SEMI market verticals including Smart Manufacturing, Smart Data, and Smart MedTech.
Technology Communities also includes the Chemical & Gases Manufacturers Group (CGMG), the Silicon Manufacturers Group (SMG), the Collaborative Alliance for Semiconductor Test (CAST), Semiconductor Components, Instruments and Subsystems (SCIS), the Strategic Innovation Platforms (SIP)and the Heterogeneous Integration Roadmap. Each one of these communities has a unique and focused mission.
"
READ FULL ARTICLE.
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A New Radiation Detector Made from Graphene
From Science Daily, February 6, 2018 by American Institute of Physics:
"Researchers have recently exploited the
thermoelectric property of graphene to create a new kind of radiation
detector. Known as a bolometer, the new device has a fast response time
and, unlike most other bolometers, works over a wide range of
temperatures. Other researchers have previously made graphene
bolometers, with better properties than this new device, but these
models contain a double layer of graphene, making them more difficult to
scale. Another advantage of the new device is its coating. The
researchers previously developed a method to coat graphene with a
dielectric polymer called Parylene, which offers a good balance of
performance and scalability. The researchers next plan to make the
device using chemical vapor deposition to grow larger pieces of
graphene, paving the way for mass production.
"
READ FULL ARTICLE.
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Breakthrough in Fabricating Active-Matrix GaN Microdisplays
From Photonics Spectra, January 2018, by Francois Templier, CEA-Leti and III-V Lab:
"
GaN-based microdisplays are
one of the best candidates to achieve the high brightness and resolution
augmented reality systems require. The main challenge for
GaN microdisplays is in fabricating them. Leti and III-V Lab recently
developed active-matrix, wide video graphics array (WVGA) GaN
microdisplay prototypes fabricated with microtube technology. GaN LED
arrays are made on sapphire substrates. Base wafers consist of
4-in.-diameter sapphire with 440-nm or 525-nm LED multiquantum-well
InGaN/GaN epitaxial structure grown by metal-organic chemical vapor
deposition for blue or green emission, respectively. The GaN array
fabrication process consists of depositing and patterning the P-contact
metal pads, and patterning the pixels by etching GaN stack using plasma
processes.
"
READ FULL ARTICLE.
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Engineers Develop Smart Material That Changes Stiffness When Twisted or Bent
From Iowa State University, February 14, 2018:
"
Iowa State University researchers found a
simple, low-cost way to produce particles of undercooled metal - that's
metal that remains liquid even below its melting temperature. The tiny
particles (1 to 20 millionths of a meter across) are created by exposing
droplets of melted metal to oxygen, creating an oxidation layer that
coats the droplets and stops the liquid metal from turning solid. They
also found ways to mix the liquid-metal particles with a rubbery
elastomer material without breaking the particles. The result is a metal
mesh that forms inside the material. The engineers say the new material
could be used in medicine to support delicate tissues or in industry to
protect valuable sensors. There could also be uses in soft and
bio-inspired robotics or reconfigurable and wearable electronics.
"
READ FULL ARTICLE.
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2017 Display Equipment Market Rose 30% to a Record High $25B; 2018 Expected to Fall 9%
From
Display Supply Chain Consultants, January 18, 2018:
"
Display Supply
Chain Consultants (DSCC) has released the latest issue of its Quarterly
Display Capex and Equipment Service which tracks the display equipment
market for 40 segments. Highlights of the report include:
- 2017 was a record year for the display
equipment market, with revenues up 30% to a record high $24.7B.
Capital-intensive OLED fabs drove the spending up 143% to a record
$15.5B. LCD fab spending was down 27%.
- In 2018, display equipment spending is
expected to fall 9%, although equipment bookings are expected to rise
5% to a record $24.8B in 2019. Driving the decline in OLEDs is slower
than expected capacity growth at Samsung's next fab for many different
reasons. BOE is expected to replace Samsung as the #1 display equipment
customer in 2018.
- 2019 looks to be a record year with BOE, China Star, LG Display and Samsung all spending at least $3.6B on display equipment." READ FULL ARTICLE.
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Stress-Corrosion Cracking and Corrosion Fatigue Impact of IZ-C17+Zinc-Nickel on 4340 Steel
From
Aerospace & Defense Technology, December 1, 2017 by Naval Air Warfare Center, Maryland:
"
The protection of cathodic metallic
materials used for aircraft components, like 4340, Aermet 100, and PH
13-8 corrosion-resistant steel, is critical to keeping the steel from
pitting and cracking due to exposure to the operating environment. Two
important properties are resistance to stress-corrosion cracking (SCC)
and corrosion fatigue. These are insidious failure mechanisms that can
lead to part failure in service. Cadmium and Ion vapor deposited (IVD)
aluminum coatings are currently used to protect high-strength steels
from corrosion, pitting, and cracking. Both are effective but each has
shortcomings. Zinc-nickel coatings are being investigated as an
alternative coating.
"
READ FULL ARTICLE.
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2018 AIMCAL R2R Europe Conference
June 4 - 7, 2018
Join us June 4 - 7 in Munich, Germany for the 2018 AIMCAL R2R Europe Conference. This is the premiere European 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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Ninth International Conference on Fundamentals and Industrial Applications of HIPIMS
June 25- 28, 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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16th International Conference on Plasma
Surface Engineering
September 17 - 21, 2018
Congress Center
Garmisch-Partenkirchen,
Germany
PSE 2018 covers fundamentals and applications of
plasma and ion beam techniques in surface engineering and includes a
conference and exhibit. With more than 700 participants from all over
the world in 2016, PSE is a well-established and leading forum in the
field of plasma as well as ion- and particle-beam assisted surface
modification and thin film technologies. The biennial PSE conference
series is organized by the European Joint Committee on Plasma and Ion
Surface Engineering.
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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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