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SVConnections May 2016
July 2017

Printing Glass

Printing Glass Objects

From Phys.Org, April 20, 2017, by Bob Yirka and Nature 2017: 
 
"A team of researchers at Karlsruhe Institute of Technology in Germany has developed a way to 3-D print objects made of pure glass. Using a casting nanocomposite5, researchers create transparent fused silica glass components using stereolithography 3D printers at resolutions of a few tens of micrometers.The process uses a photocurable silica nanocomposite that is 3D printed and converted to high-quality fused silica glass via heat treatment. The printed fused silica glass is non-porous, with the optical transparency of commercial fused silica glass, and has a smooth surface with a roughness of a few nanometers. A honeycomb structure printed in fused silica glass is exposed to a flame of 800 °C showing the high thermal shock resistance of the printed glass part. By doping with metal salts, colored glasses can be created.
READ FULL ARTICLE.

I mage:  NeptunLab/KIT
 
Wonder Material

Wonder Material? Novel Nanotube Structure Strengthens Thin Films for Flexible Electronics

From University of Illinois at Urbana-Champaign, April 21, 2017 by Rick Kubetz: 
 
"Reflecting the structure of composites found in nature and the ancient world, researchers at the University of Illinois at Urbana-Champaign have synthesized thin carbon nanotube (CNT) textiles, that exhibit both high electrical conductivity and a level of toughness that is about fifty times higher than copper films, currently used in electronics. The researchers believe this is the first study to apply the principles of fracture mechanics to design and study the toughness of nano-architectured CNT textiles. The theoretical framework of fracture mechanics is shown to be very robust for a variety of linear and non-linear materials. Beginning with catalyst deposited on a silicon oxide substrate, vertically aligned CNTs were synthesized via chemical vapor deposition in the form of parallel lines of 5 µm width, 10 μm length, and 20-60 μm heights."  READ FULL ARTICLE.
 
 
Source: University of Illinois at Urbana-Champaign
Image: University of Illinois at Urbana-Champaign  
 
Gravitational Wave Coatings

Advanced Optical Coatings for the Discovery of Gravitational Waves
From SPIE Newsroom, April 5, 2017:
 
"The first detection of gravitational waves (GWs) was announced by the Laser Interferometer Gravitational-Wave Observatory (LIGO)-Virgo collaboration in February 2016. This achievement is thought to represent one of the most challenging feats and important milestones in physics. Furthermore, because the effects of GWs are mechanical (i.e., bodies are deformed by the passage of a GW), by detecting this phenomenon we now have the ability to 'listen' to the universe rather than just gaze at it. Researchers at Laboratoire des Matériaux Avancés (LMA), France, developed state-of-the-art Bragg-reflector coatings that can be used to reduce the optical losses of mirrors. They also built a 10m3 ion beam sputtering coating chamber (known as the Grand Coater) which can coat two mirrors simultaneously. In this chamber, the mirrors are subjected to a circular motion to ensure that the coating deposition on each mirror is alike and that the two cavities of each detector are therefore extremely symmetric.READ FULL ARTICLE.
 
 
Source: SPIE Newsroom, (doi: 10.1117/2.1201701.006767)
Image: SPIE Newsroom  
 
Rust to Iron

Turning Back Time: Watching Rust Transform into Iron 

From NIST, April 4, 2017:
 
"Using a state-of-the-art microscopy technique, experimenters at the National Institute of Standards and Technology (NIST) and their colleagues have witnessed a slow-motion, atomic-scale transformation of rust-iron oxide-back to pure iron metal. Scientists work with nanometer-scale particles of the oxides. By lowering the temperature of the reaction and decreasing the pressure of the hydrogen gas that acted as the reducing agent, the scientists slowed down the reduction process so that it could be captured with an environmental transmission electron microscope (TEM). In studying the reduction reaction, the researchers identified a previously unknown intermediate state in the transformation from magnetite to hematite. In the middle stage, the iron oxide retained its original chemical structure, Fe2O3, but changed the crystallographic arrangement of its atoms from rhombohedral to cubic."  READ FULL ARTICLE.
 
 
Source: NIST
Image: W. Zhu et al./ACS Nano and K. Irvine/NIST
 
 
Solid Lubricants

Solid Lubricants: Compositions Comprising Nickel-Titanium

From NASA Tech Briefs, April 1, 2017, by John H. Glenn Research Center:
 
"NASA's Glenn Research Center has developed high-temperature solid lubricant materials suitable for foil gas bearings that enable the commercialization of a broad array of revolutionary oil-free gas turbines, compressors, blowers, motors, and other rotating machines that can operate from cryogenic to red hot temperatures. These solid lubricant coatings provide reduced friction and wear to any lightly loaded sliding mechanism operating from cryogenic to 650 °C. The PS300 and PS400 coatings and their powder metallurgy cousins are composites from a unique combination of metals, ceramics, and solid lubricant additives. Plasma spray coating deposition is used to apply a thick (0.010-inch) layer onto a metal surface that is then ground and polished before use.READ FULL ARTICLE.
 
 
Source: NASA Tech Briefs
Image: NASA Tech Briefs  
 
NC State

Finding Order and Structure in the Atomic Chaos Where Materials Meet

From North Carolina State University, April 20, 2017 by Matt Shipman: 
 
"Materials science researchers at North Carolina State University have developed a model that can account for irregularities in how atoms arrange themselves at the so-called "grain boundaries". By describing the packing of atoms at these interfaces, the tool can be used to help researchers determine how grain boundaries affect the properties of metal alloys and other materials. The model finds irregular three-dimensional shapes within the grain boundary, classifies them and then identifies patterns of those irregular shapes The tool, called the Polyhedral Unit Model, can be used to model grain boundaries for any material in which the attraction between atoms is governed solely by the distance between atoms, such as metals and ionic solids - including some ceramics. However, the approach doesn't work for materials, such as carbon, that form so-called directional bonds. They are currently working on making the Polyhedral Unit Model publicly available through open source software.READ FULL ARTICLE.
 
 
Source: North Carolina State University
Image: North Carolina State University  
 
New PVD Materials

Discovery of NEW PVD Chalcogenide Materials for Memory Applications

From Solid State Technology, April 2017, by Larry Chen, et al.  (IMI Inc.):
 
"This case study is presented based on the use of high throughput experimentation (HTE) for the discovery of new memory materials. By using a combinatorial approach of sputtering technology, HTE can be applied to PVD chalcogenides and other materials targeted at memory semiconductors. IMI's high throughput experimentation (HTE) platform is set up for accelerated experimentation. Its combinatorial PVD tool typically has four sputter guns and one additional port at the center. All sputter guns can be equipped with various types of target materials including chalcogenides, pure metals, oxides, and nitrides, and each sputter source can be operated by different plasma modes (DC,RF and pulsed) independently. The additional port at the center can be equipped with an ion beam source for ion beam assisted deposition, or ion beam cleaning, or an additional sputter gun which enables five gun co-sputtering operation. Process parameter windows can cover larger regimes than most production tool process parameters.READ FULL ARTICLE.
 
 
S ource: Solid State Technology
Image:  Solid State Technology  
 
Bending Films

High-temperature Devices Made from Films that Bend as They 'Breathe'

From MIT, May 8, 2017 by David L. Chandler:
 
"Carrying out maintenance tasks inside a nuclear plant puts severe strains on equipment, due to extreme temperatures that are hard for components to endure without degrading. Now, researchers at MIT and elsewhere have come up with a radically new way to make actuators that could be used in such extremely hot environments.  The system relies on oxide materials similar to those used in many of today's rechargeable batteries, in that ions move in and out of the material during charging and discharging cycles. In the case of the oxide materials, their reversible motion causes the material to expand and contract. The thin-film material bends from its normal flat state as oxygen is taken up by its structure or released. This behavior enables the film's shape to be controlled remotely by changing its electric charge. The most interesting thing about these materials is that they function at temperatures above 500 degrees Celsius. READ FULL ARTICLE.

Source: MIT
Image: MIT  
 
Flag as Loudspeaker

How Scientists Turned a Flag Into a Loudspeaker

From Michigan State University, May 15, 2017:
 
"A paper-thin, flexible device created at Michigan State University not only can generate energy from human motion, it can act as a loudspeaker and microphone. This is the first transducer that is ultrathin, flexible, scalable and bidirectional, meaning it can convert mechanical energy to electrical energy and electrical energy to mechanical energy. The researchers discovered their high-tech material, FENG (ferroelectret nanogenerator), can act as a microphone (by capturing the vibrations from sound, or mechanical energy, and converting it to electrical energy) as well as a loudspeaker (by operating the opposite way: converting electrical energy to mechanical energy).READ FULL ARTICLE.

 
 
Source: Michigan State University
Image: G. L. Kohuth
 
Antibacterial Testing Standard

A New International Standard for Testing Antibacterial Effects

From Advanced Materials and Processes, April 2017, by Hideyuki Kanematsu, National Institute of Technology, Suzuka College, (Japan): 
 
"Bacteria drawn to organic compounds on material surfaces product biofilms by excreting polysaccharides when present in sufficient numbers. A few years ago, a standards committee organized by the Society of International Sustaining Growth for Antimicrobial Articles (SIAA) set out to address the need for an anti-biofilm test standard. The committee's two-fold objective was to better understand the biofilm formation process as it relates to materials and gain proficiency with test methods that can reliably measure the degree of fouling associated with the biofilm growth. The goal is to produce a standard that can be used not only by engineers in industry, but also by testing organizations and academic researchers.READ FULL ARTICLE.
 
 
Source: Advanced Materials and Processes
Image: Advanced Materials and Processes
 

 
Nanotech in Healthcare

Nanotechnology in Healthcare

From Nanowerk, June 13, 2017 by Michael Berger:
 
"Nanotechnology is becoming a crucial driving force behind innovation in medicine and healthcare, with a range of advances including nanoscale therapeutics, biosensors, implantable devices, drug delivery systems, and imaging technologies. A nanotechnology-based system, for instance to eradicate cancer, needs four elements: 1) Molecular imaging to monitor at the cellular level; 2) effective molecular targeting; 3) a technique to kill the cells, and 4) a post molecular imaging technique to monitor the therapeutic efficacy. This two-part article covers these four areas and provides a comprehensive overview of healthcare advances that may be possible through nanotechnology, ranging from fitness monitoring, prevention, diagnosis to therapy, and everything in between. READ FULL ARTICLE.

Source: Nanowerk
Image: Nanowerk
 

 
Dynamic Holograms

Stretchy Material Creates Dynamic Holograms

Chemical & Engineering News, May 17, 2017, by Katherine Bourzac:
 
"Researchers at the University of Pennsylvania have created a material that can display different two-dimensional holographic images as the material is stretched. They created their stretchy hologram out of a so-called metasurface: a thin film that contains nanostructures designed to shape and reflect light. Their metasurface consisted of a square of polydimethylsiloxane (PDMS) embedded with precisely placed gold nanorods. To make the new holograms, they used computer programs to generate designs. The images appear at different distances from the hologram's surface when it is illuminated with red laser light. As the material is stretched, each image takes turns coming into focus."  READ FULL ARTICLE.
 
 
Source: Chemical & Engineering News, Nano Letters, 2017, 17, 3641-3645
Image: Chemical & Engineering News, Nano Letters, 2017, 17, 3641-3645
 
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Semicon Taiwan

SEMICON Taiwan, A Place to Connect

SEMICON Taiwan, September 13-15, 2017, Taipei Nangang Exhibition Center, Taipei, Taiwan, lets you explore unlimited possibilities in the Taiwan high-tech industry. With 700 exhibitors, 1,700 booths, and 43,000 attendees, there are countless opportunities for information exchange and expanding connections and business. The show is co-located with ICT-Asia (International Test Conference Asia) and SiP Global Summit.
 
SEMICON Taiwan will host 15 theme pavilions with topics such as AOI, circular economy, CMP, compound semiconductors, flexible electronics, high-tech facilities, lasers, materials, micro-LEDs, opto-semiconductors, precision machinery, secondary markets, Taiwan localization, and smart manufacturing and automation. There will be 8 region pavilions representing Cross-Strait, Germany, Holland high-tech, Korea, Kyshu (Japan), Okinawa (Japan), Silicon Europe, and Singapore.
 
Sessions include advanced packaging technology, MEMS & sensors, semiconductor materials, smart manufacturing & assembly, sustainable manufacturing, power & compound semiconductor technology, laser technologies in the advanced packaging process, advanced device test technology, smart automotive, and smart MedTech. A market trends forum, executive summit, and CFO forum highlight business issues.
 
The TechXPOT is the best platform not only to learn the latest industry knowledge, but also to interact with potential customers and explore business opportunities. TechXpot topics cover smart manufacturing, materials, testing, Silicon Europe, new product launches, micro LEDs, high-tech facilities, lasers, and silicon photonics.
 
SEMICON Taiwan connects suppliers and buyers with its Supplier Search program that matches device makers/OEMs with qualified suppliers. The program enables direct contact with key procurement decision makers, provides information about potential customer needs, and saves travel time and costs because many buyers can be met in one trip.
 
Several other networking opportunities are available, like the IC Design Industry Luncheon, the 2017 Leadership Gala Dinner, and get-togethers by various interest groups like materials, smart manufacturing, compound semiconductor industry, high-tech facilities, and lasers. For more information and to register, go to www.semicontaiwan.org.

 

SVCF logo

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.




Do You Have an Interesting Article to Share?

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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