Materials Science

Corning Gorilla Glass

Features: Current EventsCritical Path Innovation: Materials ScienceInstitutions: CorningProducts: Gorilla Glass

Gorilla Glass is a product from Corning. Originally developed in 1960, it was then called 'Chemcor'. Corning made only two changes to the composition of the glass in order to re-release it as Gorilla Glass in 2008.

What makes this glass neat is that it is wicked strong. The glass is 2 to 3 times stronger than other versions of lime-soda glass, even at half the thickness. According to Corning's website, "Currently, Gorilla glass is available as-drawn in thicknesses ranging from .5 mm – 2.0 mm." This additional thinness can make products such as televisions lighter and less expensive to ship. It is currently in use in some handheld and touch screen devices.

The process by which the glass is made sounds pretty neat too:

"Corning devised an ingenious method called "fusion draw" to make super-thin, unvaryingly flat glass. It pumped hot glass into a suspended trough and allowed it to overflow and run down either side. The glass flows then meet under the trough and fuse seamlessly into a smooth, hanging sheet of glass.


Buckyballs Found in Space

Artistic Rendering of Buckball formation in Space (NASA/JPL/Cal Tech)

Buckyballs, a molecule also known as C60 or C70 depending on the number of carbon atoms within the molecule, has been observed forming naturally in space. The buckyballs were discovered in the planetary nebula Tc-1 about 6500 light years away in the constellation Ara. On earth, laboratories have been able to create buckyballs by vaporizing graphite in the presence of helium. Until now the natural occurrence of buckyballs has been theoretical.


Quantum Entanglement and Photosynthesis

A recent study at UC Berkeley and Lawrence Berkeley National Laboratory has shown that plant photosynthesis uses a quantum entangling effect to transform light into electro-chemical energy. The quantum tunneling effect gives green plants and some bacteria extremely high efficiency (near 100%) during this process.

The research used electron spectroscopy to detect a
"coherent electronic oscillations in both donor and acceptor molecules. These oscillations are generated by the excitation energy from captured solar photons, like the waves formed when stones are tossed into a pond. The wavelike quality of the oscillations enables them to simultaneously sample all the potential energy transfer pathways in the photosynthetic system and choose the most efficient." -- quote from DOE/Lawrence Berkeley National Laboratory via science daily


BMW's Gina

Features: Current EventsCritical Path Innovation: Materials ScienceInstitutions: BMWMaterials: SpandexProducts: smart materials

Below is a video of BMW's Gina concept car. The car's construction is a movable metal frame surrounded by a fabric material. Wikipedia mentions that this fabric is a polyurethane coated Spandex.


Testing Nanocomposite Materials in Space

MISSE 3 mounted on the ISS (NASA)

There is an experiment happening on the International Space Station called, Materials International Space Station Experiment - 7 (MISSE7). During the experiment several nanocomposite materials are being tested for endurance in the high radiation and extreme temperature ranges of space. The experiment is being led by the US Air Force in conjunction with several US Universities.

Materials Being Tested
According to NASA, there are 'over 700 new and affordable materials' being tested under the auspices of MISSE7. 'Specimens include solar cells and candidate spacecraft materials'. These materials are expected to be useful in the design of 'solar cells, optics, sensors, electronics, power, coatings, structural materials and protection for the next generation of spacecraft'

More specific examples of the materials being tested are :

  • 'Super Teflon' - a highly durable Teflon coating. Fluoride-coated alumina particles have been added to Teflon to create a material that theoretically improves the durability of Teflon by 62,000 times.
  • A tough polymer filled with carbon nanotubes. This material is intended to conduct electricity.

What's happening with Buckypaper?

1.5cm disc of buckypaper

A brief summary of the current status of buckypaper in terms of feasibility, commercial availability, and product potential.

Several months ago, buckypaper was in the mainstream news. I would have thought that buckypaper would have made Aceize at that time, but looking back it looks like an article that I skipped. I haven't heard anything since, so I figured that I would look into the subject.

What is buckypaper?
Buckypaper is a solid collection of single walled nanotubes (SWNT). These nanotubes are held together through means of filtering a nanotube suspension. Nanotubes are placed in a suspension of non-ionic surfactants, such as Triton X-100 and Sodium lauryl sulfate. The resulting dispersion is then filtered and pressed to make buckypaper. Dr. Richard Smalley is credited with the first application of this method.


NASA and Electron Beam Free Form Fabrication (EBF3)

Portable EBF3 device

A couple days ago I read a cheeky article about NASA's plans to use 'Star Trek' replicators to create parts and tools in space (No offense meant, Mr. Hsu -- although the phrase was from Karen Taminger, anyway). The technology is a portable electron beam freeform fabrication (EBF3) device. Basically the EBF3 uses an electron beam to create a molten pool in a metallic substrate. The whole object is moved so that the fixed electron beam deposits material in the desired pattern. Doing this, they are able to create objects using a layer additive process. The concept is similar in general concept to the FAB@home projects.

Non-portal EBF3 has been used previously in the welding industry. Companies such as Sciaky create big machines that use a similar process.

Here's a neat video describing the work that Karen Taminger has done with portable EBF3.


Wilhelm Reich in the news

Features: Current EventsCritical Path Innovation: Materials Science, Human PhysiologyPeople: Wilhelm Reich
Wilhelm Reich Debates

Wilhelm Reich was a psychologist turned researcher in the 40's and 50's. In the late 50's he was arrested and imprisoned by the US government for ignoring an FDA ruling that outlawed one of his inventions. After Reich's arrest all of his books and research papers were burned by the US government. Yes, burned.


US government prohibits Iodine possesion.

Features: Current EventsCritical Path Innovation: Law effecting scientific progress, Materials ScienceFree Tagging: Iodine

Starting August 11, 2007 it will be illegal to possess a solution containing over 2.2% Iodine in the United States of America. Iodine will be a regulated chemical subject to tracking, approvals, import and export regulations. Certain exemptions to this rule have been granted by the government. It is be legal to possess 1 fluid ounce of Lugol's solution. Additionally "Persons handling regulated iodine materials are required to register with DEA, are subject to the import/export notification requirements of the CSA, and are required to maintain records of all regulated transactions involving iodine regardless of size." Farmers who regularly use up to 7% iodine solution for their livestock will fall under this monitoring and regulation, as will any manufacturing facilities. Amateur chemists will likely be unable to obtain Iodine legally (unless the are very familiar with US paper work procedures).


TiO2 and Iodide electrolyte create flexible, effiecient solar panels

Critical Path Innovation: Materials ScienceInstitutions: G24 InnovationsProducts: Graetzel CellsFree Tagging: Iodine
General Info: 

The Graetzel Cell is a Solar power cell made from a dye, Titanium Oxide, and an Iodine Electrolyte. These solar cells are based on a discovery by a Swiss chemist named Micheal Graetzel. The solar cells are currently being produced in Wales by a company called G24 Innovations. The Titanium Oxide, Iodine Electrolyte combination makes solar cells simpler and cheaper to produce than their silicone based counter parts. There are two other potential advantages to this solar cell design. One is that the simplicity of the design removes the need for a glass or rigid plastic container around the cell, so the solar cells from G24 can be flexible and light weight. Two is that the cells can produce electricity in low light situations.

More information from the Guardian.

Graetzel Solar Cells

Liquid based Variable Focal Length Lenses

General Info: 

Article suggested by Masumeh, who is researching liquid bifocal and progressive lenses as a treatment for presbyopic (farsighted) patients.

There are several current projects that use Liquid Crystal Displays (LCD) to create magnification lenses. Some of the projects are being developed for use in small cameras such as cell phone cameras. There is also a project that uses the LCD's in a bifocal type of application (see picture).

Liquid Lenses used in creating bifocal glasses

Visualize the Atom...no visualize it better

Features: Current EventsCritical Path Innovation: Materials Science, Data Models
Oxygen

Here's a website that provides a nice, clear visualization of all known atomic elements. I found this site through Infosthetics. Each visualization shows the neutrons, protons, electrons, the spin of the electrons, orbital shells, and sub orbital shells - with the electrons mapped to each sub orbital shell. It reminds me of high school chemistry class, but better.


Talking Paper: In the future, Rice Krispies will be creepier

Critical Path Innovation: Materials ScienceInstitutions: Mid Sweden University, EU Target 1People: Kristina BrinkProducts: Paper FourFree Tagging: printable electronics
Development Group: 
Mid Sweden University
General Info: 

Watch a Video of talking paper.
Paper Four is a research project at the Mid Sweden University. They are researching how to print electronics such as loudspeakers and keyboards onto paper. They use a recyclable, printable ink to embed paper with the electronics wiring necessary to create the devices. The printable ink acts as the wiring.

In order to create a speaker out of the printable paper, three layers of printed paper are used. The outer layer contains the images and acts as a covering for the paper covered in electronic ink. The middle layer reacts to pressure when the outer layer is pushed and sends a signal to the third layer. The third layer forwards the signal to a chip that activates an audio file. The 'speaker' in the system is a piece of aluminum foil that has had wiring printed on it. The aluminum is spread over an empty cavity in the display.

The researchers hope to use the paper for a variety of applications such as warnings or advertising on product packaging. Their current prototype display looks like something that would be available at a museum.


Flexible 2.5" Display .3 mill thick from Sony

Features: Current EventsCritical Path Innovation: Interactive Control, Materials ScienceInstitutions: SonyMaterials: OLED
Sony's thin film display

Sony released a video of their new flexible thin film display. The display is thin enough to bend like paper and displays full color images. The display is created using a combination of 'thin film transistor' and 'organic electroluminescent display' (OLED) technologies. At the moment Sony is not 100% certain what future applications to which the technology will be applied. However, I think that their wallpaper idea may have some wings. How great would it be to be able to repaint a whole room just by flicking a switch? Or even better, change the color based on the time of day?


High Torque 12V Hobby Motors

Features: Current EventsCritical Path Innovation: Materials Science, Robotics

The website says that these motors are great for running model cars, but I would imagine that a high torque motor would have some pretty decent applications in making amateur robots. At $15.95, it might be worth a test.


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