Saturday, March 19, 2011

GOT YTTRIUM?: Times Article on Rare Earth Minerals and Technology

Where can you find rare earth minerals?
Mostly used in Hybrid Vehicles. i pods, Fiber optics, Energy efficient Light bulbs, Wind Turbines LCD TVs


Times Article by Bryan Walsh: March 28th, 2011.
Mark Kristoff has rare-earth minerals in his blood. His father was an executive with Molycorp, which owned and operated the biggest American rare-earth mine, near the Mojave Desert town of Mountain Pass, Calif. When Kristoff was a kid, his father gave him a tour of the mine in full production, at a time when the U.S. was a global leader in the mining of rare earths — a handful of metallic elements that are minor but key ingredients in electronics. In the mid-1970s, it seemed impossible to imagine that the U.S. would one day be dependent on imports for the raw materials that made its high-tech industries go. "They were mining the elements that put the red in every color television," says Kristoff, the 49-year-old CEO of metal-trading company Traxys.
But over the years, the U.S. saw domestic production of rare earths dwindle even as the metals became that much more important for high tech (think fiber optics and the iPad) and nascent clean tech (like solar panels and wind turbines). Tougher environmental rules and the costs associated with them led to the closure of rare-earth mines like Molycorp's Mountain Pass facility, while in China, low-cost labor and little in the way of government regulation meant that production boomed. (See why Chinese firms are buying up mining and oil companies.)
Today China produces 97% of the world's rare earths. The vulnerability of the rest of the planet to Chinese dealers became apparent last year, when Beijing — allegedly out of concern for the environmental cost of mining — suddenly restricted rare-earth exports, sending prices soaring. Chinese leaders now say they'll cut the export quota for rare earths 35% over the first six months of 2011, threatening a shortage that could put the brakes on the U.S.'s green growth. "The problems are real and serious," says Robert Jaffe, a physicist at the Massachusetts Institute of Technology. "If appropriate steps are not taken, we face possible short-term constraints of supply to what could otherwise be game-changing energy technologies."
Rare earths are rare in the sense that they are not often found in concentrations that are economically worth mining, though China, the U.S. and Australia all have major reserves. Despite their scarcity, rare earths have become a vital part of the global economy, and the gray and silvery metals are only going to become more valuable. For instance, iPods contain small quantities of the rare earths dysprosium, neodymium, praseodymium, samarium and terbium. Fiber-optic cables need erbium, europium, terbium and yttrium. Rare earths serve a number of purposes. Praseodymium is used as a pigment, while neodymium is a critical component of strong magnets. (See photos of old bombs turned into scrap metal.)
Rare earths are especially essential to clean-tech products, including solar panels, wind turbines and batteries. Each Chevrolet Volt — GM's new extended-range electric vehicle — uses 7 lb. (3.2 kg) of rare-earth magnets, while each utility-scale wind turbine uses 661 lb. (300 kg) of neodymium. As the clean-tech industry has grown and as China has curtailed exports, the price of rare earths has skyrocketed. Dysprosium — one of the most critical rare-earth elements, with a name that means "hard to get" in Latin — has gone from $6.50 per lb. ($14.33 per kg) in 2003 to over $130 per lb. ($287 per kg). "Almost any clean-tech product or any electronic gadget needs these elements in one way or another," says Craig Cogut, founder of Pegasus Capital Advisors, a private-equity firm that has invested in rare earths. "They are absolutely critical to the growth of green tech and IT."
If that's the case, why has the U.S., which as recently as 1995 was producing as great an amount of rare earths as China, all but abandoned the industry? The key reason is environmental. Mining rare earths and processing the ore can be a dirty, difficult business, in part because of the toxic acids needed for refining. At one point in the 1990s, the Mountain Pass mine was producing hundreds of gallons of wastewater an hour, mixed with radioactive elements from the thorium and uranium that are often found with rare earths. As U.S. environmental standards tightened, the costs of producing rare earths increased — even as domestic mines were undercut by Chinese producers who seemed to operate with little or no oversight.

The environmental price of China's dominance has been horrific. Half the world's rare earths currently come from a single mine in the Inner Mongolian city of Baotou, where the landscape is strip-scarred and toxic reservoirs are full of radioactive wastewater. Even if Chinese leaders weren't restricting rare-earth exports, the pace of global demand is beyond what China's environment can endure — which helps explain why the government has cracked down recently on illegal mines. And as China's own clean-tech industries grow with the help of generous government subsidies, so has the country's internal demand for rare earths. "The Chinese put [Molycorp] out of business by cutting the price," says Kristoff. "But as they use more rare earths themselves, they are restricting their exports."
That's left an opening for new suppliers — including one that's come back from the dead. Molycorp, the original operator of the Mountain Pass mine, was purchased in 1977 by the oil company Unocal, which shut down the rare-earths facility in 2002. Unocal was bought by Chevron in 2005. A group of private-equity investors, including Pegasus, Traxys, Goldman Sachs and Resource Capital Funds, purchased the Mountain Pass mine from Chevron in late 2008 and re-established Molycorp as a private company. (Goldman later sold its interest.) (See what other nations can fill the need for rare earths.)
Flush with funds, Molycorp purchased the Mountain Pass mine from Chevron in late 2008 and reopened it. The new owners intend to spend $500 million cleaning up the mine and refurbishing the processing facility, with the goal of producing 40,000 metric tons of rare-earth ores annually within the next few years. Molycorp executives believe the mine could produce 20% to 25% of the world's rare-earth products by 2014. "We will make a difference," says Mark Smith, Molycorp's CEO.
To meet U.S. environmental standards, Molycorp is constructing an on-site natural gas plant to cleanly generate the electricity needed for rare-earth processing. The company will also recycle the mining wastewater, using it to produce the hydrochloric acid and sodium hydroxide needed to separate the rare earths during processing. The new facility will use just 10% of the water that was needed during the Mountain Pass operation's heyday. "We will be the cleanest rare-earth mine in the world," says Cogut. "This is going to be a combination of quantity and quality."
The market is already impressed. Molycorp successfully went public in July 2010, its stock price rising from $14 a share to more than $45, putting the company's value at some $4 billion. And Mountain Pass isn't the only rare-earth mine looking to cut in on the Chinese. The Sydney-based company Lynas is opening a new mine on Mount Weld in Western Australia, with plans to produce 22,000 metric tons of rare-earth ore a year by 2012. Element Resources is scoping a potential mine in Bear Lodge, Wyo., which could produce as much as 10,000 metric tons of ore a year. "This is about ensuring the sustainability of sustainability," says Terry Tamminen, the former head of California's environmental protection agency and a Pegasus adviser.
For the U.S., breaking China's hold on rare earths isn't just good business. It's also a matter of national security. Electronic military equipment depends on rare elements like dysprosium, used in heat-resistant magnets. Some members of Congress want the U.S. to file a complaint with the World Trade Organization about China's rare-earth-export restrictions. But the only sustainable solution will be renewed domestic production of rare earths, perhaps with government help. If a global green economy is going to truly take off, rare earths can't remain rare much longer.

Friday, March 18, 2011

HOW TO GET ON TO MATERIAL CONNEX ION WEBSITE via mynewschool

Any one who has a New School UNI can log on to Material Connexion search page for free.
Step 1: login
https://my.newschool.edu/cp/home/displaylogin

Step 2: click the Library Tab
Step 3: Under Electronic Data Bases: (Click on:) Search Data Base by Title
Step 4: Scroll or click M for Material Connexion Then Click on Material Connexion.
This should bring you to Search Page for Material Connexion

Any Parsons New School Faculty or student may arrange for a class visit and tour by
contacting Michael LaGreca [MLaGreca@materialconnexion.com]ENJOY!

BAMBOO: Natural Intelligence

The Library now Has BAMBOO from HAITI

This building is  (called the BUG) realized on a wasteland of a ruined building site in-between the Shenzhen City Hall and an illegal workers camp. The design is inspired by insects. The bamboo construction methods are based on local knowledge from rural Guanxi brought into the city by the migrating construction workers. The space is used during the SZHK Biennale for underground bands, poetry reading, discussions, karaoke and as a lounge for the illegal workers from the neighboring camp. The building offers a shade, a stage and a fireplace. After the Biennale the Bug Dome will act as an un-official social club for illegal workers from the Chinese countryside.

Bamboo: a Great Building Material Gets Even Better

Building — by Judith Goldsmith March 9, 2011

The easiest, strongest, cheapest, and most durable material for building structures may now come from your garden. A new book describes best practices, and a workshop is coming up shortly in Australia.
When architect Darrel DeBoer first encountered bamboo as a building material, he knew it was going to be revolutionary. He had a long history of researching and teaching about building with non-toxic materials, using renewable materials such as straw-bale for building, and creating innovative designs; and bamboo is proving to be a new tool to extend these areas into new, very exciting areas. Now he’s written a book packed with photographs of beautiful design ideas, and hints for working with bamboo that he’s learned from numerous projects around the globe.

A Great New (Old) Building Material
You may have already heard bamboo extolled as a wonderful building material. It’s strong as steel in tension, and stronger than concrete in compression. It’s cheap. It’s easy to work with because it’s so much more lightweight than wood, concrete, or steel; it has a huge strength to weight ratio advantage, mainly because of the hollowness of its cylinder shape.
It’s easily available, as a never-ending source — with one quarter of the grove harvestable each year. Unlike hardwood, you don’t need to wait for 75 years to get a crop. Using bamboo gives you control over your own source of building materials. Its availability is not subject to market prices, nor need it be produced far away from the building site, by people you don’t know. You can get it growing in the area of the house you want to build, and harvest just the amount you need, as you need it. Needless to say, there are projects considering the use of bamboo for building in many "third-world" countries.
And finally, it’s far less dangerous while building, plus it is far less dangerous in the case of a storm or earthquake destroying a building so badly that its building materials wind up falling on its inhabitants. But that is a rare situation with bamboo. Excitement about building with bamboo amplified when a 6.2 earthquake hit central Colombia in January 1999, and 70% of the recently-built concrete and brick buildings failed, while virtually all of the older village buildings, of bamboo, stood strong and un-damaged.
Problems Recently Solved
In the last 20 years two basic problems, of joinery, and of preservation, have been solved, allowing much more innovative building and moving bamboo forward as a "modern" building material.
The joints in earlier, non-engineered, bamboo buildings used to be lashed or pinned, and they would eventually come loose, as the seasons changed from wet to dry to wet again — the expansion and contraction loosened the joints.
New techniques now use bolts at the joints, followed by filling the area around the joints with the injection of a substance that becomes solid. The best material tested for this so far is mortar (made of 4 parts sand, 1 part each cement and lime). This keeps the bamboo from crushing when you put a load on it. So, if the building is properly designed, with lots of triangles, loads run along the axis of the bamboo.
As we know from the design of geodesic domes, in any building material, if the design uses a lot of triangles, when corners are fixed the structure can’t move (unlike squares which, like dominoes, can slide over and collapse). All pieces are in tension or compression, making a very strong structure. The result is no physical loss of strength at the joints, so the buildings are even stronger when facing hurricanes or earthquakes.
Applying the mortar is very simple. Drill a hole, put in the bolt; drill another hole, put fill in there.
The preservation problem has also recently been solved. The main problems are with fungus, and with powderpost beetles. It has been found that since the digestion process in beetles involves bacteria they can be affected by various salts. Especially effective is borax, which is harmless to humans; it is even used in, for example, Visine eye solution. So it is not dangerous for builders to work with.
Borax is also used as a fertilizer, as well as in mouse poisons, where it behaves similarly, infecting the bacteria in the mouse’s stomach. So it’s easy to buy in either of those preparations. To use in preserving bamboo, one only needs to combine the boric acid from either of those preparations in a 50/50 ratio with borax (from eg. Twenty Mule Team Laundry Detergent). Add water until the dry materials stop dissolving. (Another way to describe this is that you are creating a 5% solution.)
This preservative is then put into the interior of the bamboo, by drilling holes into every internode, then putting the drilled bamboos into a large bath of the solution. Or you can drill holes down the length of pole, then stand them up vertically and fill with solution. This should sit for a week, so that the solution diffuses through the pithier interior walls. Drain out the excess, and your bamboo is ready for use.
Another way to apply the preservative, especially good for shorter poles, is to stick them into, for example, a garbage can full of solution just after the bamboo has been harvested (and so still alive); the live cane will absorb the solution very thoroughly, because its processes are still sending liquid up through the capillaries. Using this technique, one can get the solution to rise up to 8-10 feet.
Innovative Buildings
DeBoer, who is based in the San Francisco Bay area, has visited building projects in a dozen countries to learn more about the material and gather great examples for his recently-published book. Extraordinary bamboo structures by architects and designers such as Colombians Simz and Marcelo Villegas, German Joerg Stamm, Celina Llerena of Brazil, Bobby Manosa from the Phillipines and Jorge Moran in Ecuador, and others, are demonstrating to the local communities and world that bamboo is a beautiful material that even the wealthy are choosing for their houses and buildings.
Following the initial innovations of the first generation of engineered bamboo buildings, the second generation is just getting started. The really thoughtful work has just begun. It’s a very exciting time in the history of building. You can be part of this innovative experiment in several ways:
DeBoer will be teaching Bamboo Design and Construction Workshops, this coming April 2011, across four Australian states (NSW – QLD – WA – VIC). Sign up here.
Examples of DeBoer’s architectural and furniture design can be seen at: deboerarchitects.com
More on building with bamboo is online at: BambooBuildingEssentials.com
The new book, "Bamboo Building Essentials: The Eleven Basic Principles" by Darrel DeBoer and Megan Groth, is available through DeBoer’s website (also, he’ll have some available for workshop participants). Topics covered: Ways to Use Bamboo, Choosing Species, Growing, How to Harvest, Treatment and Curing, Splitting, Good Hat/Boots, Shear and Triangles, Joinery, and Bamboo and Building Codes, plus hundreds of photos.
http://permaculture.org.au/2011/03/09/bamboo-a-great-building-material-gets-even-better/

http://www.toolbase.org/Technology-Inventory/walls/structural-bamboo





Thursday, March 17, 2011

Material of Communication: FILM: check out the BIG way of doing it...

To My Students in the Haiti Studio: Do not think your getting away with not doing a video for your projects.
Look at BIG's video toward the end of his TED talk for his project in China...less than 2min long...

Attack this problem with your energy and enthusiasm to communicate your amazing ideas! Remember your Next review is in April

http://www.ted.com/talks/bjarke_ingels_3_warp_speed_architecture_tales.html

Wednesday, March 9, 2011

Fashion and Architecture: Alexander McQueen

Metropolitan Museum of Art announces Alexander McQueen exhibition in May 2011

One of the most brilliant designers of the 20th century, the late Alexander McQueen, will be having a retrospective at the Metropolitan Museum of Art. 
McQueen's work not only embraces the highest standards of art, fashion, and architecture, in my view his work is a testament to the power and beautiful agony of a visceral genius. I will include his work in my next technology class on materials.


 

TorZo is HERE!



Toro Surfaces is a US based manufacturer of sustainable surfaces that are ideal for 
high wear residential and commercial applications. Product applications for these 
surface products, which are manufactured from agricultural by products and recycled 
wood materials, include countertops, tabletops, tiles, vanities and flooring. 
In addition, Torzo Surface product can be used for vertical applications such as 
paneling, dividers and cabinets.









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Description

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Produced domestically in Vancouver, Ribbon Glass meets the requirements set by the LEED building rating system and may be used to earn LEED MR Credit 5.1.

Colors

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Sizes

Ribbon Glass slabs are manufactured at a thickness of 30mm(+/- 10%) in sheet sizes up to 48″x120″.


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