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How scientists are designing a new material to harness the power of condensation
The Week
In an old episode of The Voyage of the Mimi, an educational kids' show from the 1980s, a young Ben Affleck hangs a tarp over the top of a bucket of seawater, then collects the drinkable freshwater that condenses on the inside of the tarp. The power of condensation, which spared Ben and his shipmates a slow death on a desert island, is one of humanity's most ancient and ubiquitous technologies. A group of scientists and engineers at Harvard, though, say it can be improved upon — with the help of a new surface design inspired by an insect and two plants.

Researchers study the mechanics of drying paint
Researchers in England and France are watching paint dry -- for science. Specifically, the research team wanted to understand how particle size affects the mechanics of drying paint and other coatings. Their research showed that coatings with differently sized particles solidify spontaneously into two layers.

University of Michigan researchers develop durable, inexpensive ice repellent coating
Ice is considered a nuisance on a car’s windshield, but it is dangerous on an airplane, a ship, oil rig, a wind turbine, or a power line. While methods like hammers, scrapers or chemical melting agents are often used to remove ice, these are labor-intensive, complicated, and costly processes.

Slimming down optical components
Optics & Phonics
Two research groups, using very different materials and approaches, have recently fashioned optical and photonic components that they claim are far thinner than previously demonstrated devices. In one study, the authors report creating “the thinnest and lightest solar cells demonstrated to date,” using a flexible organic substrate. The other research team leverages the optically intriguing properties of a 2-D material, molybdenum disulfide (MoS2), to unveil what the study bills as "the world’s thinnest optical lens."

Nanowires could bring 'tunable' privacy glass to the masses
If you don't want to block light but still need privacy, a discovery from Harvard might let you ditch the window coverings. Researchers at the university's engineering school have developed glass that changes from transparent to translucent at the flick of a switch. Such "tunable windows" aren't new, but commercial models are currently expensive and slow. The new material, however, can transform from clear to cloudy in less than a second and should be cheap to produce.


Alumina Coated Evaporation Sources
The R. D. Mathis Company offers alumina coated sources for some specific coating applications. The advantage of this type of source is good thermal transfer and the inertness of alumina with most metals.

Also, the evaporant does not wet the alumina which eliminates resistance changes in the boat when the evaporant melts. Due to the non-wetting characteristics the evaporant forms a sphere when melted resulting in "point source" performance. The alumina coated source also provides longer life compared to the unprotected source.

Alumina coated oats are also available with a “barrier Style” coating which allows wetting to the dimple area, but prevents the material from migrating out of the evaporation area. This is ideal for the evaporation of gold when better uniformity is required. We also offer alumina coated tungsten basket sources as well. These offer the benefit of reaching high temperatures with low current. Visit our online store to view all of our alumina coated evaporation sources.

Join R.D. Mathis Company at these upcoming events
May 11-12, 2016 — SVC (Society of Vacuum Coaters), Booth #418, Indianapolis Convention Center, Indianapolis, IN

Nov. 8-10, 2016 — National AVS (American Vacuum Society), Booth #423, Music City Center, Nashville, TN

Nov. 29-Dec. 1, 2016 — MRS (Materials Research Society), Hynes Convention Center, Boston, MA

The Evaporator

R.D. Mathis Company
P.O BOX 92916
Long Beach, Ca 90809-2916
Telephone (562) 426-7049
Fax (562) 595-0907
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