Seth Koppold & Zack Smith

Material Presentation

Carbon nanotubes 

• Our group chose this material because it sounded high tech and interesting.

Applications•  Nanotubes have the largest strength to weight ratio of any

known material making them good for space ships.•  The are very sharp at the molecular level and this makes

them exceptional for delivering cancer cell attractors directly into the disease cells.

• They also have a electrical resistance that changes significantly when other atoms attach themselves to the carbon atoms. This property makes carbon nanotubes great for vapor detector sensors.

Carbon Nanotubes

Carbon nanotubes are supplied by private dealers.  The cost of them are fairly high. 5 grams is about 100 dollars.  

Ceramic Concrete

We chose Concrete because we thought it would be interesting to study. Concrete is used universally for infrastructures such as buidings and sidewalks. Concrete was first used in the Roman Empire.

 

Concrete

Concrete has relatively high compressive strength, but much lower tensile strength. For this reason is usually reinforced with materials that are strong in tension (often steel). The elasticity of concrete is relatively constant at low stress levels but starts decreasing at higher stress levels as matrix cracking develops. Concrete has a very low coefficient of thermal expansion and shrinks as it matures. All concrete structures will crack to some extent, due to shrinkage and tension. Concrete that is subjected to long-duration forces is prone to creep. Concrete is sold comerically and generally goes for about 100 dollars per 10 cubic yards.

Ferrous MetalStainless Steel We chose this because we thought Stainless steel was more interesting to reasearch than other Ferrous Metals. ~Stainless steel’s resistance to corrosion and staining, low maintenance and familiar lustre make it an ideal material for many applications. There are over 150 grades of stainless steel, of which fifteen are most commonly used. The alloy is milled into coils, sheets, plates, bars, wire, and tubing to be used in cookware, cutlery, hardware, surgical instruments, major appliances, industrial equipment (for example, in sugar refineries) and as an automotive and aerospace structural alloy and construction material in large buildings.

Stainless Steel

Stainless Steel can be sold commerically and is price depending on the type anywhere from 20 to 500 dollars for a standard sheet of stainless steel.

Other metalAluminium AlloyAluminium Alloy is used in areospace marine cycling and car technologies. Its high strength and light mass is what makes this material very useful.

Aluminium Alloy

Alluminium is bought by private industries, and is fairly cheap. About a buck per pound. The main problem is the fact that aluminium is rapidly depleting in mines.

Other Engineered MaterialSilicon SiWe choose this material because we thought it would be fun to reasearch. Silcon is know for its semiconductor applications. Silcon main applications are for electronics such for computers.

Silicon SI

Silicon is mainly sold in private businesses.  CostRegular grade silicon (99%) costs about $0.50/g. Silicon 99.9% pure costs about $50/lb; hyperpure silicon may cost as much as $100/oz.

Wood Natural

• We chose wood for the natural because it is well known and very useful

Applications• housing• furniture• burning• every day projects

Wood is good for these applications because of its stability and inexhaustibility. It is also able to be smoothed down and sanded down to a soft texture suitable for furniture. Wood will burn easily because of its  

Wood History

Wood usefulness has been known since the beginning of time.

Dufeck Manufacturing company is manufacturer of many kinds of wood products.

Wood can range in price from from cheep maple wood to extremely rare wood found submerged in rivers for hundreds of years.

Copper

We chose copper because of our understanding of its usefulness in wiring.

Applications• Copper wires•  electrical transmission • pipes• house hold items• cars• plumbing 

Copper is good for these applications because of its conductivity and malleability. It is easily formed into pipes and wires. It is also generally pretty easy to mine making it very inexpensive. It is also a great conductor of heat.

Copper History

Copper is able to be mined and has been being used since prehistoric times. It is a pure element but is often utilized in a combination of other metals.

Fenggang Titanium Products Equipment Manufacturing Co.,Ltd manufacturers copper in its metal equipmentCopper is sold for about 3$

Rubber 

Applications• Tires• rubber bands• shoes• wire coating • stoppers

Rubber has great elasticity and electrical resistance. Tires need to conform to obstacles in the road and rubber is able to do this very well. It also is a counter conductor of electricity making it a safe wire coater. It also has a good amount of frictional potential making it suitable for traction in shoes and tires.

Rubber History

Charles Goodyear could be credited with discovering the important process of vulcanizing rubber, but rubber itself has been around for many years. 

The price of rubber per pound is about $2.80 cents but this price is constantly changing.

Citations"Concrete." Wikipedia. Wikimedia Foundation, 15 Mar. 2012. Web. 15 Mar. 2012. http://en.wikipedia.org/wiki/Concrete. "Carbon Nanotube." Wikipedia. Wikimedia Foundation, 15 Mar. 2012. Web. 15 Mar. 2012. http://en.wikipedia.org/wiki/Carbon_nanotube. "Stainless Steel." Wikipedia. Wikimedia Foundation, 15 Mar. 2012. Web. 15 Mar. 2012. http://en.wikipedia.org/wiki/Stainless_steel. "Aluminum Alloy." Wikipedia. Wikimedia Foundation, 03 Dec. 2012. Web. 15 Mar. 2012. http://en.wikipedia.org/wiki/Aluminum_alloy. "Aluminum Alloy." Wikipedia. Wikimedia Foundation, 03 Dec. 2012. Web. 15 Mar. 2012. http://en.wikipedia.org/wiki/Aluminum_alloy.

"Nanotubes and Their Applications." Nanotechnology Made Clear. Web. 15 Mar. 2012."Copper." Wikipedia. Wikimedia Foundation, 15 Mar. 2012. Web. 15 Mar. 2012"Natural Rubber." Wikipedia. Wikimedia Foundation, 03 Nov. 2012. Web. 15 Mar. 2012."Wood." Wikipedia. Wikimedia Foundation, 15 Mar. 2012. Web. 15 Mar. 2012.    

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