Thanks Dave. I will take whichever helper is more "scientific". We are still counting tin whiskers - with the added charter to try to estimate the volume of tin errupting from the surface so that stress relief can be estimated. Carol Handwerker at Purdue Lafayette is trying to correlate that back to the stress her grad students saw in the tin through instrumental means. My summer interns start packing up for Fall Term at the end of the week, so timing couldn't be better. Thanks for the help.
Denny Fritz
-----Original Message-----
From: David D. Hillman <[log in to unmask]>
To: TechNet <[log in to unmask]>
Sent: Mon, Aug 1, 2011 4:35 pm
Subject: [TN] NTC Friday Element Quiz - the Answer
Hi folks - Here is the Friday Element Quiz Answer:
The Question:
This element can be machined without sparking but as a pure metal is
ompletely useless as it corrodes rapidly. No pure samples of this element
were produced until 1950 as it required ion-exchange chromatography
echnique. This element is used in the production of the industry's best
ermanent magnets. What element is being described?
Bonus question: Who developed the ion-exchange chromatography technique as
it applies to this element and what is the name of the University where
he development happened? (both names are necessary for credit)
The Answer:
The element is Dysprosium (Dy)! Dysprosium is one of the rare earth
lements that is key in the production of the best kinds of permanent
agnets - Dy and Holmium have the highest magnetic strengths of any
lements. Dy is combined with neodymium in many magnet alloys. Dy is also
ound in some ceramics such as barium titanium oxide for capacitors with
igh capacitance. Frank Spedding at Iowa State University developed ion
xchange chromatography to produce pure Dy in 1950. The ion exchange
echnique was then applied to other rare earth element production (such as
amarium which Denny Fritz and Curt McNamara suggested as the quiz
nswer). I completed my undergrad and grad studies at Iowa State
niversity and many of my professors worked with Dr. Spedding - so this
uiz had a personal twist!
ow, that was one of the more difficult quizzes. The services of Clumpy
nd Kloumpios will be split between assisting Denny Fritz, SAIC and Bev
hristian, RIM Inc., for this week.
o far Clumpy and Kloumpios have:
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
Were tackling dummys 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
assisted with a tin pest investigation/test
Week 15 Bev Christian, RIM
- assisted Bev shoveling snow
Week 16 David Bealer of Watchfire Signs
- assisted with reflow profiling
Week 17 Brian Ellis, rumored to be retired
- assisted with rewiring the house, had a tractor accident and found his
ousin Kloumpios
Week 18 Denny Fritz, SAIC
- assisted with tin whisker inspection/examinations
Week 19 Graham Collins, L3 Communications
assisted with scraping barnacles, boat paint and boat engine maintenance
Week 20 Mark Woolley, PTRL Laboratory Avaya
assisted with weather observations (70F to snow) and resolving
lectrochemical migration failures
Week 20 Tom Carroll, Boeing Defense, Space and Security
assisted with commercial aircraft galley inspection
Week 21 Brian Ellis, supposedly retired, and Tom Carroll, Boeing Defense,
pace and Security
assisted with root cause corrective action tasks
assisted with nothing but catching up with the family
Week 22 Drew Meyer, Benchmark Electronics Inc.
assisted with metallographic cross-sections and Dye & Pry testing
Week 23 Bev Christian, RIM
assisted with a creep corrosion project and the setting up of an oxygen
omb
Week 24 Steve Gregory, RD Circuits
unknown
Week 25 Ahne Oosterhof, A-Laser
assisted with stencil aperture data analysis and split/stacked firewood
Week 26 Scott Post, Delphi
assisted/participated in the Kokomo Airshow Race Event
Week 27 Brian Ellis, supposedly retired
assisted with tedious website work and family home cooking
Week 28 Nigel Burtt
abandoned Nigel and were rumored to be involved in UK News Corps/News
nternational cellphone/journalism/politics scandal
Week 29 Richard Stadem,GD-AIS
unknown
Week 30 Robert Wolfe, Kimchuk Inc and Graham Naisbitt, Gen3
assisted with a hot tub refurbishment for post work day de-stressing
assisted with SIR and Cleanliness testing
Week 31 Bev Christian, RIM Inc, and Denny Fritz, SAIC
assisted with ????
Hope everyone has a great week.
Dave Hillman
ockwell Collins
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