The Blog Where Materials Matter

The iPad Tablet is out... Woohoo!!

2010-02-01T19:34:00.000-08:00

I know you are not learning it from me, but I think it is a pretty cool gadget. I had to post it :)

Getting Closer and Closer to Space Tourism

2009-12-08T19:53:00.000-08:00

Virgin Galactic just unveils their commercial spaceship. They announced that as early as 2011, the vehicle should have passed all the battery of tests required to bring civilians, like you and me, to space...yahoo!! It will be a 2.5hour trip, with however only 5 minutes of weightlessness; it's short but that's a start.

Coin Toss Not Random

2009-12-08T19:40:00.000-08:00

Researchers have finally shown that even relatively un-trained individuals can manipulate the outcome of flipping a coin. The details can be read in the Holiday Review of the Canadian Medical Association Journal. So, beware if you're not the one flipping the coin :)

Kids!! Buzz Lightyear needs your help!!

2009-10-07T12:18:00.000-07:00

NASA has launched a contest to design a mission patch for Buzz Lightyear. Buzz just came back from a 15 months stay on the Space Station; he really has a fortunate career... To commemorate the event, Mike Fincke and Buzz Aldrin were given the privilege of parading on Main Street USA at Walt Disney World. Buzz Ligthyear is an exclusive member of the "space jet set" :)

The winner will get a tour of the Kennedy Space Center, and of course, win a trip to Walt Disney World. The winner might be allowed to have an experiment conducted on the Space Station... it makes you wish you were still a kid...

In free fall without a net - Cirque du Soleil in space

2009-10-07T12:02:00.000-07:00

Canada has currently its first space tourist visiting the space station: the founder of Cirque du Soleil. For someone associated to a circus, Guy Laliberté will hold the record for the longest free fall without a net... yahoo!!

We need the real Q

2009-02-07T12:25:00.000-08:00

There is a challenging design project outhere. Not everyone can afford it, but it gives something to think about. The U.S. Defense Advanced Research Projects Agency (DARPA) has issued a "broad agency announcement" requesting "a concept design and proposals for proof of concept experiments" for a submersible aircraft. They want an aircraft that can reach a destination, whether it is 1,850km away by air or 185km by sea or 22km travelling underwater, in less than 8 hours." The vehicle must be capable of "carrying a crew of eight and 2,000lb of payload," and "would use a snorkel to provide its powerplant's air supply while submerged at shallow depths once at its target." It sounds more like a project for a James Bond movie but no, it is a real project so, all the wanna be "Qs", at your drawing table (or computer), get set, GO! You can visit www.darpa.mil for more information.

Bye Bye Titanium

2008-05-12T12:16:00.000-07:00

Not too long ago, titanium was known as a revolutionary material for its lightness and its use in composites. This time might be over. Researchers from Caltech have produced metals they call "metallic glass" composites. These metals are reported to be twice as tough and elastic as titanium. A 3mm rod of the composite can support a 2 tons truck. The new composites could be used in the making of lighter vehicles and consumer electronics. For more details, please visit www.wired.com

Send your name to the Moon

2008-05-06T13:03:00.000-07:00

NASA announces that we can send our name to the Moon with the Lunar Reconnaissance Orbiter mission. A database on a microchip will carry the names. Having your name in the database includes the possibility of printing a certificate. If you are interested in sending your name, please visit http://www.nasa.gov/lro before June 27.

Polycarbonate made using CO2

2008-04-09T12:24:00.000-07:00

A good news for the environment. It is apparently possible to make polycarbonate (commonly used for lenses and bottles) using CO2. Two scientists presented their work on the subject at the American Chemical Society annual meeting. For more details on the two presentations, please refer to the proceedings and look for the following authors: Thomas E. Muller and Thoshiyasu Sakakura www.acs.org

Short Courses at UC Riverside June 23-24

2008-03-28T16:31:00.000-07:00

In conjunction with the 68th Annual Physical Electronics Conference at UC Riverside, the SCCAVS will be offering the following 4 short courses:

- Operation and Maintenance of Production Vacuum Systems
- Sputter Deposition
- Surface Analysis, Interface and Thin Film Analysis: The Major Methods
- Analysis of Residual Gas Analyzer Spectra

For more information, please visit the following link:
http://www.sccavs.org/sccavsshortcourses08.html

Single-Crystal Semiconductor in an Optical Fiber

2008-03-21T09:00:00.000-07:00

They came up with a device that will add new electronic capabilities to optical fibers. They managed to grow a single-crystal semiconductor inside the tunnel of a hollow optical fiber. If you would like to know more about this device, the article is in "Advanced Materials" vol. 20, Issue 6.

Strange Matter Exhibit

2008-03-21T08:54:00.000-07:00

There is an exhibit "on tour" that your little ones, or yourself, might find interesting. It is called "Strange Matter Exhibit". It is currently in San Diego and Seattle. For more details, the website is www.strangematterexhibit.com.

New ASTM Tribology Manual

2008-03-05T14:01:00.000-08:00

For the ones interested in tribology, ASTM has a new publication. It is manual 56 "Guide to Friction, Wear, and Erosion Testing".

Cars made of Biomaterials

2008-03-03T13:09:00.000-08:00

I was glad to read today that it appears there are some advantages to the price of oil going up. The automobile industry is trying to lower their use of petroleum-based plastics and composites; to replace them with biomaterials which are lighter and "greener". A lighter car consumes less fuel, a greener car generates less carbon dioxide. It is reported that substituting 1 tonne of conventional plastics with its "bio" equivalent eliminates 3 tonnes of carbon dioxide. WOW! It is predicted that in 2015, each car will have approximately 200 pounds of biomaterials... I am telling you, the "organic" car is just around the corner :)

New Self Healing Rubber

2008-02-21T12:26:00.000-08:00

I read in the news that a professor in Paris came up with a self-healing rubber. They think its applications could range from adhesives to tires for bicyles. One can break a piece in parts and put them back together over and over... I don't know why, but it reminds me a popular toy back when I was a kid. I believe its name was "slime", it was green. You could not have made a tire with it, but you were able to put it back together over and over... :)

More Space Debris

2008-02-20T13:09:00.000-08:00

It’s been established for a while that something had to be done about the growing number of space debris... man made space debris. I find it astonishing that after all these years, the course of action for taking care of a defective satellite is shooting it down. They say that destroying the satellite at such a low altitude will minimize the amount of generated space debris. I guess they assume that not much of the debris will “fly up”.
It is obviously not an environment friendly decision … but most probably the most cost efficient way of dealing with the problem, making sure nobody else will put their hands on the satellite.

Conventional Micro Hardness versus Instrumented Indentation

2008-02-15T16:56:00.000-08:00

Many people rely on “conventional” micro hardness measurement technique to obtain hardness values, in which case, hardness is computed using the diagonals of an imprint. While the technique works well for bulk materials and thick coatings, it is not appropriate for small features, thin coatings and materials such as glass and ceramics that crack under too much load. Also, the smaller the indent, the greater the error on the measurement.

Instrumented indentation is based on the analysis of the load-penetration curve measured while doing an imprint. It is computer-controlled and it is not influenced by the operator’s judgment of the imprint’ shape. Properties such as hardness and elastic modulus can be determined with a single indent. Many are mistakenly using conventional measurement techniques when they should use instrumented indentation.

When time comes to choose a proper technique to measure the hardness, keep the following in mind:
• A hardness value is invalid if an indent shows sign of cracking or pile up.
• Ideally an indent should not be deeper than 1/7 to 1/10 of the coating thickness.
• When measuring the hardness of a coating using a cross section, the distance between the edge of coating (surface/interface) and the indent itself should be at least 3 times the size of the diagonals.
•The hardness of most samples can be measured using instrumented indentation without the need to have a polished cross-section.