Hi folks - Here is the Friday Element Quiz Answer:
The Question:
The first "pure" use of this element began in 1823. This element is
sometimes classified as a metalloid. The density of this element increases
when it is melted. The native oxide of this element prevents further
oxidation of the element below 900C. What element is being described?
The Answer:
The element is Silicon (Si). Silicon is a metal that enables technology in
a multitude of ways. Silicon is a deoxidizer in steel production, the
basis for integrated circuits, glass, cement, protective coatings for high
temperature applications, and families of polymers. Ge atoms are larger
than Si atoms so an alloy of 85%Si and 15% Ge has an average interatomic
spacing slightly larger than pure Si. When a pure layer of Si is deposited
on the 85/15 alloy, the Si becomes strained resulting in a 70% faster
signal speed parallel to the surface! Less than 1% of the world's
production of Si is the pure form but that 1% (approximately 40K
tons/year) is roughly equal in total dollar value to the other 99% of the
metallic Si production.
Lots of good guesses (this was one of the tougher quizzes) - the winner of
this week's quiz is Bev Christian of RIM. Clumpy have to sneak onto the
A380 in Germany and head for Canada:
So far Clumpy has:
Week 1 Lamar Young, SCS Coatings
- accomplished nothing (drank lots of coffee)
Week 2 Bev Christian, RIM
- conducted REACH material testing
Week 3 Drew Meyer, Benchmark Electronics Inc.
- Solderability testing and mowed the lawn
Week 4 Ian Fox, Goodrich
- had an epic journey of travel
Week 4 Gary Ferrari, Garrick Global
- unknown
Week 5 Fredrick Miller, Astrolab
- unknown
Week 6 David Nelson, Raytheon
- Was a tackling dummy for Dallas Cowboys
Week 7 Graham Collins, L3 Communications
- Cleaned gutters and painted window trim
Week 8 Bill Noel, ITT Geospatial Systems Division
- unknown
Week 9 Steve Gregory of RD Circuits
- unknown
Week 10 David Bealer of Watchfire Signs
- descaled the in-line wash machine! Ouch!
Week 11 Dick Krug of Sparton Corporation
- assisted with AS9100 quality management systems requirements audit
Week 12 Steve Creswick of Balanced Enterprise Solutions
- Acted as Steve's "go fer" due to a broken leg!
Week 13 Gebhard Neifer, Delphi
- conducted a plasma pre treatment Taguchi DOE for a sealing process
Week 14 Bev Christian, RIM
- ????
Have a good weekend.
Dave Hillman
Rockwell Collins
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