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Sandia Labs materials scientist Jon Madison says a key to his academic and professional success was listening to the adults in his life. “I don’t pretend to know everything,” he said. “I listened to the people who had my best interests at heart: my parents, my teachers, my mentors. I might not have understood or agreed with them, but just hearing what they were telling me provided opportunities later in life.”
Read more at bit.ly/2KESSX8.
Photo by Randy Montoya.
Fungal infected chitosan iron nanoparticles
Courtesy of Dr. Sarah Briceño , Yachay Tech
Image Details
Instrument used: Tecnai
3D-printing technologies like Laser Engineered Net Shaping, shown here, are helping scientists at Sandia rapidly discover, prototype and test new materials that could benefit the energy sector as well as the aerospace and automotive industries.
Learn more at bit.ly/3IlmVB6
Photo by Craig Fritz
Top view of Copper structures taken by Helios Dual beam system under the immersion mode. Electro-chemical deposited shape-specific Copper nano/microstructures.
Courtesy of Mr. Sasan V. Grayli , Simon Fraser University
Image Details
Instrument used: Helios NanoLab
Magnification: 10000
Horizontal Field Width: 41.4 um
Vacuum: 0.00091652 mbar
Voltage: 2.0 kV
Spot: 0.2nA
Working Distance: 3.9mm
Detector: TLD-SE
Nanoparticles of titanium dioxide used as a catalyst in processes of photocatalysis.
Planes can be observed.
Courtesy of Dr. Maria Carbajo , UNIVERSIDAD DE EXTREMADURA
Image Details
Instrument used: Tecnai
Magnification: 900000x
Horizontal Field Width: 58nm
Voltage: 200kV
Spot: 2
Detector: CCD
Spider leg with hair follicles imaging through TEM
Courtesy of Mr. Durga Prasad Muvva , UGC-Networking Resource Centre, School of Chemistry and The Centre for Nanotechnology, University of Hyderabad
Image Details
Instrument used: Tecnai
Magnification: 5500x
Voltage: 200 kV
Spot: 1
Working Distance: 3
Ceria has been extensively used as catalyst support for different reactions at Division of Catalysis and Chemical Processes (DCAP)/INT. This is mainly due to its redox properties, which are fundamental for catalyst stability.
Courtesy of Mr. FRANCISCO RANGEL
Image Details
Instrument used: Quanta SEM
Magnification: 30,000x
Horizontal Field Width: 9.95
Voltage: 20 kV
Spot: 3.0
Working Distance: 11
Detector: MIX: SE plus BSE
As a semiconductor with superior properties, Indium Phosphide is widely used for fabrication of optoelectronic devices operating at near- infrared range such as photodetectors and lasers. This image is taken from a rectangular microbelt of InP grown with CVD method. This microbelt is called a Fabry-Perot cavity that can support optical lasing modes as a three-dimensional resonant medium.
Courtesy of Mr. Seyed Ebrahim Hashemi Amiri , Arizona State University
Image Details
Instrument used: Other FEI SEM (XL SEM, Sirion, etc.)
Magnification: 15000
Vacuum: 10^-5
Voltage: 20 kV
Spot: 4
Working Distance: 10.6
Detector: SE
ZnTe nanostructures on n-Si grown in CVD with gold as catalyst at edge of structures
Courtesy of Prof. Abdul Majid , Majmaah University
Image Details
Instrument used: Quanta SEM
Magnification: 500x
Horizontal Field Width: 50
Voltage: 10 kV
Spot: 3.5
Working Distance: 14
Detector: SE
The carbides (M2C - wings and M7C3 - cockpit) precipitated in low-alloy steel that is applied for turbine rotors working at temperatures up to 540 C.
Courtesy of Mr. Radosław Rozmus , Intitute for Ferrous Metallurgy
Image Details
Instrument used: Titan
Magnification: 57000
Voltage: 300 kV
Spot: 6
Detector: STEM - HAADF
These are nanofibers containing titania nanoparticles.
Courtesy of Dr. Murtaza Saleem , Lahore University of Management Sciences (LUMS)
Image Details
Instrument used: Nova NanoSEM
Magnification: 100000
Horizontal Field Width: 2 um
Voltage: 9 kV
Spot: 3.0
Working Distance: 5.0
Detector: CBS
In Chemistry, precipitation is a process of obtaining a solid from a solution. It can be produced by a chemical reaction or by concentration of the solute until saturation is exceeded.
The crystals of the photograph were formed on a titanium plate in which bacteria were cultured in order to study the bacterial adhesion to this biomaterial. The precipitate is due to the salts of the culture medium used.
Courtesy of Dr. Maria Carbajo , UNIVERSIDAD DE EXTREMADURA
Image Details
Instrument used: Quanta SEM
Magnification: 1500x
Horizontal Field Width: 199 μm
Voltage: 20 kV
Spot: 6.5
Working Distance: 9.8 mm
Detector: BSED
Dracocephalum nectary, critical point dried, coated with Pd/Au
Courtesy of Mr. Michał Rawski
Image Details
Instrument used: Quanta 3D
Magnification: 75x
Horizontal Field Width: 1.99 mm
Vacuum: 4.19e-4 Pa
Voltage: 2 kV
Spot: 4.5
Working Distance: 10.0
Detector: ETD SE
Byungmin Ahn, a graduate student in the Mork Family Department of Chemical Engineering and Materials Science, received a Gold Medal award in March 2008 for his presentation at the Fifth International Symposium on Ultrafine-Grained Materials held in New Orleans. Ahn is shown conducting research at the USC Composites Center. Photo by: Philip Channing
Modern technologies require materials that are lightweight, with high mechanical strength, stiffness, flexibility and impact resistance. At the same time, they are expected to be low in cost, friendly to automation, simple in transportation, exploitation and recycling. Polymers in their variety – either thermoplastics or thermosets – combine to a certain extent some of these contradicting requirements. That is why polymers become more and more common tending to limit the use or even completely substitute in many applications more traditional materials such wood, metals and ceramics. Generally, traditional neat polymers display inferior mechanical properties as compared to most ceramics and metals. Hence, to meet the constantly growing industry requirements for mechanical resistance in tension, flexion and impact, polymers need to be reinforced, filled or otherwise modified thus producing polymer-based composites. A large window has opened for new applications of polymer composites with the broad introduction of micro- and nanotechnologies in polymer science. The intensive research in this area showed undoubtedly that changing the type, size, shape, volume fraction, interface, and degree of dispersion or aggregation of the different components enable great amount of unique combinations of properties with high potential for successful commercial development. In this context, finding a scalable and relatively low-cost method for facile dispersion of specific organic or inorganic fillers in conventional thermoplastic polymer matrices could be an industrially important pathway toward functional advanced composite materials combining, for example, magnetic susceptibility, electrical conductivity and high k properties. Such materials would have potential in radar absorbing materials (RAM) or in electromagnetic interference shielding (EMI) materials.
Novel binary thermoplastic composite materials are synthesized by a reactive microencapsulation method. The composites are based on polyamide 6 (PA6) matrix comprising two types of reinforcements: (i) microsized Al, Cu, Mg, and Fe powders and (ii) nano- or microsized carbon allotropes such as carbon nanotubes (CNT) and carbon black (CB).
This selected SEM image shows the morphology of the polyamide microcapsules (PAMC) loaded with Cu particles and CNT. The PAMC loaded with Cu/CNT, wherein the metal particles are in the 5-20 µm range, are porous, with scaffold-like morphology and the pores sizes being typically in the 250-500 nm range. In the foreground, the size and shape of a copper particle is well observed.
Courtesy of Ms. Filipa Oliveira , University of Minho
Image Details
Instrument used: Nova NanoSEM
Magnification: 20,000x
Horizontal Field Width: 14.9 μm
Voltage: 10.0 kV
Working Distance: 4.9 mm
HAADF image of a Mg alloy sample (prepared in PIPS)
Courtesy of Dr. Evelin Fisslthaler , Graz Centre for Electron Microscopy
Image Details
Instrument used: Titan
Magnification: 14.000
A cracked area in magnetite nanocrystal superlattice formed by langmuir schaefer method.
Courtesy of Mr. Zhongyue Luan , University of California, Irvine
Image Details
Instrument used: Magellan
Magnification: 26982x
Horizontal Field Width: 767 nm
Voltage: 10 kV
Working Distance: 4.2
Detector: SE
Precipitated crystals from a highly nutrient liquid medium commonly used in microbiology.
These crystals were formed on a titanium plate in which bacteria were cultured in order to study the bacterial adhesion to this biomaterial. The precipitate is due to the salts of the culture medium used.
Titanium is a material used in dental implants because it is biocompatible.
Courtesy of Dr. Maria Carbajo , UNIVERSIDAD DE EXTREMADURA
Image Details
Instrument used: Quanta 3D
Magnification: 5000x
Horizontal Field Width: 60 μm
Voltage: 15kV
Spot: 5.0
Working Distance: 10 mm
Detector: SE
Nanoparticles of titanium dioxide used as a catalyst in processes of photocatalysis.
Courtesy of Dr. Maria Carbajo , UNIVERSIDAD DE EXTREMADURA
Image Details
Instrument used: Tecnai
Magnification: 80000
Voltage: 200kV
Let´s test some materials properties of static and dynamic loaded structural parts at operating temperatures :)
For further information and details -->> click here
TiO2
Courtesy of Mrs. Zehra Sinem YILMAZ , İzmir Institute of Technology Center for Materials Research
Image Details
Instrument used: Quanta SEM
Magnification: 50,000x
Horizontal Field Width: 8.29 μm
Vacuum: 8.23e-4 Pa
Voltage: 15 kV
Spot: 5.0
Working Distance: 9.1
Detector: SE
STEM image of 200 nm polystyrene nanospheres shadowed with gold on formvar-crabon grid.
Courtesy of Mr. Adolfo Martínez
Image Details
Instrument used: Other TEM (Morgagni, CM Series, etc.)
Magnification: 11,000X
Horizontal Field Width: 22 μm
Vacuum: 0.00001 Pa
Voltage: 200 kV
Spot: 6.0
Detector: STEM
Today's smartphone is brought to you by a rainbow of discoveries in basic materials sciences over the years, many pioneered at national laboratories or other government-funded research facilities. Here are a few.
From the summer 2013 issue of Argonne Now, the lab's semiannual science magazine. Sign up »
Shown here is a dried water droplet on a silicon wafer, containing micron sized Cadmium-cysteine coordinates. The coffee ring effect is apparent here, as the edges of the droplet have a higher density of particles, giving rise to this unique pattern which resembles the horns of a Moose. In the spirit of holidays, let us all hope that I spot Santa next time in my droplet when it dries.
The image was taken on a Helios 650 Nanolab
HV : 5 kV
Current : 0.4 nA
Detector : ETD
Mode : SE
WD : 1.9 mm
mag : 120 x
HFW : 1.73 mm
Courtesy of Mr. Prashant Kumar , University of Michigan
Image Details
Instrument used: Helios NanoLab
Magnification: 120 x
Horizontal Field Width: 1.73 mm
Voltage: 5 kV
Working Distance: 1.9 mm
Detector: ETD
Cryo TEM image of micelles like "Fingerprint".
Courtesy of Mr. Anton Orekhov , NATIONAL RESEARCH CENTRE KURCHATOV INSTITUTE
Image Details
Instrument used: Titan
Voltage: 3000
Detector: Falcon 2
This is an SEM image from mouse lung.
Courtesy of Mr. SEYYED HABIB ALAVI , Oklahoma State University
Image Details
Instrument used: Quanta SEM
Magnification: 50000
Voltage: 20 kV
Spot: 3.0
Working Distance: 10.4
Detector: ETD
It is a mixed oxide of lanthanum, titanium and copper, with perovskite-like structure, prepared by the sol-gel method. It has been used as a catalyst in wastewater ozonation reactions.
Its appearance is laminar, with many holes, which justifies the low density observed experimentally.
Courtesy of Dr. Maria Carbajo , UNIVERSIDAD DE EXTREMADURA
Image Details
Instrument used: Tecnai
Magnification: 29000x
Voltage: 200kV
Spot: 2
Fish gill
Courtesy of Mr. Nishad Kv
Image Details
Instrument used: Quanta SEM
Magnification: 400
Horizontal Field Width: 746
Voltage: 20kV
Spot: 4.0
Working Distance: 11.6
Detector: ETD
Beautiful ornamentation of spore hidden in hymenophorous of Russula emetica mushroom. Image taken by SEM/FIB FEI Helios 450HP in Electron Microscopy Laboratory in PORT Polish Center for Technology Development.
Courtesy of Mrs. Anna Siudzinska , PORT Polish Center for Technology Development
Image Details
Instrument used: Helios NanoLab
Voltage: 3 kV
Detector: TLD
Sandia National Laboratories researcher Steve Dai has been working on bonding glass-ceramic materials to stainless steel. Strong bonds for airtight seals are important for applications in fields ranging from aerospace to defense.
Learn more bit.ly/31FSDSI.
Photo by Randy Montoya.
HRTEM image of Cu2O (cuprite) crystal. Research on influence of electron beam irradiation on beam-sensitive materials. Image taken by FEI Titan3 G2 60-300 TEM in Electron Microscopy Laboratory in PORT Polish Center for Technology Development.
Courtesy of Mrs. Anna Siudzinska , PORT Polish Center for Technology Development
Image Details
Instrument used: Titan
Voltage: 80 kV
Goose feather structure. Image taken by SEM FEI QEMSCAN 650F in Electron Microscopy Laboratory in PORT Polish Center for Technology Development.
Courtesy of Mrs. Anna Siudzinska , PORT Polish Center for Technology Development
Image Details
Instrument used: QEMSCAN
Voltage: 10 kV
Detector: ETD (SE)
HRTEM image of Cu2O (cuprite) crystal. Research on influence of electron beam irradiation on beam-sensitive materials. Image taken by FEI Titan3 G2 60-300 TEM in Electron Microscopy Laboratory in PORT Polish Center for Technology Development.
Courtesy of Mrs. Anna Siudzinska , PORT Polish Center for Technology Development
Image Details
Instrument used: Titan
Voltage: 80
Organic materials chemist Shawn Dirk focuses a projector during work on neural interfaces, which are aimed at improving amputees’ control over prosthetics with direct help from their own nervous systems. Focusing prior to exposing polymers ensures that researchers pattern the desired feature sizes for the interfaces.
Read more at share.sandia.gov/news/resources/news_releases/prosthetics/
Photo by Randy Montoya
Cobalt ferrite nanoparticles
Courtesy of Mr. Jose Arevalo , Instituto Venezolano de Investigaciones Cientificas
Image Details
Instrument used: Tecnai
deposits shaped like the leaves of an aquatic weed
Courtesy of Dr. Swarnagowri Addepalli
Image Details
Instrument used: Quanta SEM
A group of spectators gathers at the Annular Core Research Reactor for its 10,000th operation. The shot was videostreamed live to a nearby auditorium to accommodate the more than 150 onlookers. The ACRR has been in operation for more than 32 years at Sandia.
Read more here.
Photo by Randy Montoya
Sandia National Laboratories materials engineer Melissa Teague is a 2016 recipient of a Presidential Early Career Award in Science and Engineering for pioneering improved understanding of fuel in a nuclear reactor.
Read more at bit.ly/2OUr2LW.
Photo by Randy Montoya.
zinc iron oxide nanoparticles
Courtesy of Dr. Sarah Briceño , Yachay Tech
Image Details
Instrument used: Tecnai
Magnification: .
Horizontal Field Width: .
Vacuum: .
Voltage: .
Spot: .
Working Distance: .
Detector: .
The PNNL-led Battery500 consortium aims to significantly improve upon the batteries that power today’s electric vehicles by almost tripling the specific energy in lithium batteries. Pictured here is PNNL researcher Jason Zhang, who will co-lead the consortium’s group focused on improving electrodes and electrolytes.
Terms of Use: Our images are freely and publicly available for use with the credit line, "Courtesy of Pacific Northwest National Laboratory." Please use provided caption information for use in appropriate context.
TheraCal is a new light-curable dental material composed of calcium silicate and resin, for use as a pulp-capping material and liner, in restorative dentistry. The image shows a calcium silicate crystal seen in a sample from a study to evaluate the apatite forming ability of TheraCal, which is critical for new dentin formation.
Courtesy of Dr. Ravi Sidhu , University of Manitoba
Image Details
Instrument used: Quanta SEM
Magnification: 17,993x
Horizontal Field Width: 11.5 um
Vacuum: 6.72e-4 Pa
Voltage: 10kV
Spot: 3.5
Working Distance: 10.7
Detector: BSE
Re-crystallization of an aroma. The shape of the crystals
Courtesy of Mrs. Carine Meyer , Nestec SA
Image Details
Instrument used: Tecnai
Magnification: 4800
Horizontal Field Width: 11.2
Voltage: 100 kV
Sandia technician Tommy Mulville installs a gas exhaust line for a switch at Thor’s brick tower racks. In the background, beyond the intermediate support towers, technician Eric Breden makes ready an electrical cable for insertion in the central power flow assembly.
Learn more at bit.ly/2yZALFX.
Photo by Randy Montoya.
Sandia tech Eric Breden terminates a transmission cable for installation on the silver disk that is the new pulsed-power machine’s central powerflow assembly. The sophisticated machine will crush materials at 1 million atmospheres.
Learn more at bit.ly/2yZALFX.
Photo by Randy Montoya.
Graphene and DNA can combine to create a stable and accurate biosensor, reports a study published in the nanotechnology journal Small. The tiny biosensor might eventually help doctors and researchers better understand and diagnose disease.
Using resources at the Department of Energy’s EMSL, scientists at the Department of Energy's Pacific Northwest National Laboratory and Princeton University showed that single-stranded DNA strongly interacts with graphene, a nanomaterial made of sheets of carbon atoms just a single atom thick. They also found that graphene protects DNA from being broken down by enzymes similar to those found in body fluids - a characteristic that should make graphene-DNA biosensors highly durable.
The illustration shows how fluorescent-tagged DNA interacts with functionalized graphene. Both single-stranded DNA (A) and double-stranded DNA (B) are adsorbed onto a graphene surface, but the interaction is stronger with ssDNA, causing the fluorescence on the ssDNA to darken more. C) A complimentary DNA nears the ssDNA and causes the adsorbed ssDNA to detach from the graphene surface. D) DNA adsorbed onto graphene is protected from being broken down.
The image taken is of cilia from the nasal passages of a rabbit. We were looking for bacteria on the surface and got some nice shots of the cilia structures
Courtesy of Mr. William Monroe , University of Alabama at Birmingham
Image Details
Instrument used: Quanta SEM
Magnification: 500x
Horizontal Field Width: 600 um
Voltage: 10 kV
Working Distance: 10 mm
Detector: SE
Hollow glass nano-cylinders were fabricated using EBL. Gold was evaporated to infill the structures. To polish the surface and make the cylinders optically accessible the surface was polished using the FIB under very grazing angles. The material acts as a negative index metamaterial for visible wavelenghts or the cylinders can be used as plasmonic material to enhance optical trapping forces several orders of magnitude.
Courtesy of Ms. Marie Anne van de Haar , FOM institute AMOLF
Image Details
Instrument used: Helios NanoLab
Magnification: 150000x
Voltage: 5 kV
Working Distance: 4.2
Detector: SE
ZnO has large exciton binding energy of about 60 meV so they can be used
as transparent electrodes in displays and metal oxide
semiconductor in optoelectronic devices. ZnO also is an attractive
piezoelectric materials mainly used in surface accuostic waves
components and piezoelectric devices.
Courtesy of Mrs. Seydanur Kaya , Kastamonu University
Image Details
Instrument used: Quanta SEM
Magnification: 20000x
Horizontal Field Width: 15μm
Vacuum: 2,50-e4Pa
Voltage: 20kV
Spot: 3
Working Distance: 10.1
Detector: SE