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Today’s objectives-Advanced processing and Optical Fibers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
HPT Airfoil Material Advances Material advances allow the use of higher metal temperatures and/or less cooling air. Ceramic layer Metallic layer Ni or Co base Gary Chaplin, Pratt & Whitney
PW4000 Material Technologies Ceramic outer air seals are combined with abrasive coated blade tips to create an abradable system that reduces turbine operating tip clearance. Shown below is the continuously graded ceramic outer airseal segments that have been successfully cut by a sprayed abrasive blade tip system.  Brush seals can significantly reduce leakage relative to KE seals. The static seal’s cobalt alloy brush wires are in constant contact with a ceramic coated rotating seal land. Brush wear is determined by the interference load & the surface speed & temperature. Gary Chaplin, Pratt & Whitney
Space Port to be Built in New Mexico A core group of 100 “founders’ have paid the initial $200,000 cost of a flight up front. Flights will begin in late 2008 or early 2009. Spaceport construction should begin in early 2007. Virgin Galactic’s Richard Branson has a deal with Burt Rutan to build 5 space craft Gary Chaplin, Pratt & Whitney
Thermal Oxidation ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],http://www.memsnet.org/mems/beginner/deposition.html
Sputtering ,[object Object],[object Object],[object Object],[object Object],[object Object],http://www.angstromsciences.com/technology/sputtering.htm http://www.gencoa.com/tech/whatsputtering.html
PLD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Pamir Alpay, UConn MSE A B C A B C B A B C C B A B C A B C A
CVD ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],http://www.memsnet.org/mems/beginner/deposition.html
Lithography Steps ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],UV cross-linked
MicroElectroMechanicalSystems (MEMS, NEMS) ,[object Object],[object Object],[object Object],[object Object],[object Object],http://www.sandia.gov/mstc/index.html
MEMS processing ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
MEMS applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],www.NASA.gov Astronomers use AO to straighten out star light that bends and distorts as it travels through the atmosphere. This effect of air turbulence on light makes us see the twinkling in stars. In the human eye, disease and vision problems also cause light rays to distort, resulting in blurred vision. Scientists are developing miniature versions of adaptive optics systems used in observatories to improve patient care.  The Planet Neptune with and without AO   Image from earth of a star with and without AO.
MEMS at work ,[object Object],[object Object],[object Object],http://www.sandia.gov/mstc/technologies/micromachines/movies/index.html
SUMMARY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Reading for next class Optical Fibers details (download from web site)

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Lecture 08

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  • 2. HPT Airfoil Material Advances Material advances allow the use of higher metal temperatures and/or less cooling air. Ceramic layer Metallic layer Ni or Co base Gary Chaplin, Pratt & Whitney
  • 3. PW4000 Material Technologies Ceramic outer air seals are combined with abrasive coated blade tips to create an abradable system that reduces turbine operating tip clearance. Shown below is the continuously graded ceramic outer airseal segments that have been successfully cut by a sprayed abrasive blade tip system. Brush seals can significantly reduce leakage relative to KE seals. The static seal’s cobalt alloy brush wires are in constant contact with a ceramic coated rotating seal land. Brush wear is determined by the interference load & the surface speed & temperature. Gary Chaplin, Pratt & Whitney
  • 4. Space Port to be Built in New Mexico A core group of 100 “founders’ have paid the initial $200,000 cost of a flight up front. Flights will begin in late 2008 or early 2009. Spaceport construction should begin in early 2007. Virgin Galactic’s Richard Branson has a deal with Burt Rutan to build 5 space craft Gary Chaplin, Pratt & Whitney
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