[BNC-all] MONDAY MEMO

Mon Mar 31 12:24:54 EDT 2008

WEEKLY MEMO, March 31, 2008

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1. KUDOS
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1.1:  KALAPI BISWAS wins a Graduate Student Silver Award at the Spring MRS
meeting held in San Francisco.  Her award was presented a ceremony held on
Wednesday (03.26.08) evening. The award prizes consist of $400 and a
presentation plaque for the Gold Awards and $200 and a certificate for the
Silver Awards.  All finalists also received a waiver of the meeting
registration fee and a one-year MRS student membership commencing July 1,
2008.  Kalapi won with her presentation, ³LL5.2: Bi2Te3 Nanowire Composites
for Thermoelectric Devices.² A complete list of the winners is located at
http://www.mrs.org/s_mrs/doc.asp?CID=12356&DID=201572
<http://www.mrs.org/s_mrs/doc.asp?CID=12356&amp;DID=201572>

1.2:  VIJAY RAWAT and KALAPI BISWAS win first prize in two categories, ³Best
Presentation² and ³Best Poster,² for their poster ³Novel thermoelectric
materials and devices for waste heat harvesting" during Pugwash's third
annual Midwest Regional Conference, ³Energy and the Environment: Powering
the Future Responsibility."

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2. ANNOUNCEMENTS
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2.1:  2nd Annual BNC Research Review, Monday, April 14th, 2008, 1:00PM, MRGN
121. I hope you can attend. Program to include Tim Sands, ³The Birck
Nanotechnology Center  Progress, Opportunities, and Challenges²; Evgenii
Narimanov, ³Metamaterials for Future Photonics²; Donald Bergstrom, ³Carbon
Nanotubes as Nucleic Acid Carriers²; Gerhard Klimeck, ³nanoHUB  Future
Cyberinfrastructure Serving over 60,000
Users Today²; Jayathi Murthy, ³An Introduction to PRISM and MEMS
Simulation²; and David Janes on nanoelectronics.  A poster review and
session will also be included in this year¹s activities.  Visit
www.nano.purdue.edu <http://www.nano.purdue.edu> for the most up-to-date
information regarding this year¹s Annual Research Review.

2.2:  ******REMINDER******  CLEANROOM AND LAB PREVENTATIVE MAINTENANCE
SCHEDULE:  MONDAY, 03.31.08 TO FRIDAY, 04.04.08
         Monday, 03.31.08, 10:00 AM: All materials must be removed from
cleanroom solvent hoods.
          Monday, 03.31.08, 4:00 PM: All materials must be removed from the
remaining cleanroom hoods.
         CLEANROOM CLOSED. Tuesday, 04.01.08 7:30 AM: No ultrapure water
available. No acid processing in laboratories. No hazardous gases available.
         CLEANROOM CLOSED. Wednesday, 04.02.08, all day: No ultrapure water
available. No acid processing in laboratories. No hazardous gases available.
         Wednesday, 04.02.08, 4:00 PM: All materials must be removed from
laboratory hoods (including biosafety cabinets; all bio materials must be
removed from exhausted enclosures).
         Thursday, 04.03.08, 8:00 AM: Cleanroom will re-open, barring
unforeseen circumstances. All solvent hoods and processes will remain down
for general exhaust upgrades.
         LABORATORIES CLOSED. Thursday, 04.03.08
         Friday, 04.04.08, 8:00 AM: Laboratories will re-open and Cleanroom
general exhaust should be operational, barring unforeseen circumstances.
Questions or comments? Contact Mark Voorhis (mvoorhis at purdue.edu)

2.3:  Indiana Health Industry Form: ³Innovention 08 ‹ Improving the Value of
Healthcare; Connecting the Industry Like Never Before!² July 28-29, 2008,
Indiana Convention Center.  Registration opens April 1, 2008.  For more
information and event updates, please visit www.ihif.org
<http://www.ihif.org> .

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3.  SEMINARS
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3.1:  Wednesday, April 2, 2008, 6:00PM, MRGN 121:  Bioethics Seminar,
³Conflicts of Interest in Biomedicine,² by David Resnik.  Issues surrounding
conflicts of interest and the commercialization of research are both timely
and vital to Purdue¹s research community.
BIO:  Dr. Resnik is the Bioethicist for the NIH and the NIEHS.  His
extensive experience and publication record both in philosophy and in the
sciences promise this to be a very interesting talk!  More information,
including Resnik¹s CV, is available online at www.purdue.edu/bioethics
<file://www.purdue.edu/bioethics>.

3.2:  Friday, April 4, 2008, 3:30 refreshments, 3:45 sminar, ARMS 1010:
³Laser Weldability of Nickel and Cobalt Based Alloys,² by Henry J. White,
Haynes International, Kokomo, IN
ABSTRACT: For nearly a century, arc welding has been the primary technique
used to join both nickel and cobalt based alloys. The advantages (excellent
corrosion resistance, increased productivity, etc.) of a deep and narrow
weld geometry with a limited heat affected zone led to the first detailed
study of laser welding of Hastelloy® and other nickel based alloys- Welding
Journal 1986. A modification of the ³Weeter Laser Weldability Test² was used
to evaluate eighteen commercially available and five experimental alloys
produced by Haynes International. The original test involves drilling a
matrix of holes of various diameters (0.343 to 0.572 mm) and depths (0.127
to 0.508 mm) in the material. Then a laser (Nd- YAG, CO2, Fiber, etc.) is
used to make spot welds in the drilled holes. A laser spot size greater than
the drilled hole diameter is selected so that the absence of metal in the
drilled hole causes the solidified spot weld to have a concave contour. By
varying the depth and width of the drilled hole the weld restraint and the
depth of the cavity resulting from the solidified spot weld changes. By
measuring the depth of the cavity at which the alloy exhibits incipient
cracking, ³Weeter index², a rating of the material¹s weldability is
obtained.
In this study a ramp (depth from 0.127 to 0.508 mm) / taper (width from
0.343 to 0.572 mm) geometry was machined into each specimen. A Fiber Laser
(IPG Photonics) was used to produce an autogeneous bead on plate weld in the
ramp/ taper region. A laser spot size, greater than the restraint area, was
used to ensure that the resulting cavity assumes a concave contour. As in
the original test procedure, the cavity depth at which the alloy exhibits
incipient cracking was measured/ recorded and used as a rating of the
material¹s weldability. We will report on the laser weldability of corrosion
resistant (Hastelloy B-3®, C-4, C-22®, C-276, C-2000®, G-3, G-30®, G-35®),
high temperature (Haynes® 25, HR-120®, HR-160®, 188, 230®, 242®, 282®, 556®,
625, Hastelloy X), and five experimental alloys which have been/ will be
used in the chemical, hygienic, aerospace, and the automotive industries. We
will compare these test results with Varestraint Testing (a technique used
to evaluate the arc weldability of materials) done on the same materials and
comment on hot cracking propensity/ mechanisms.
SHORT BIO: Dr. Henry J. White, a Registered Professional Engineer in the
State of Indiana, joined Haynes International in 2007 as Welding
Metallurgist/ Senior Staff Engineer.  He has a B.S. in Metallurgical
Engineering from Polytechnic University, M.S. in Materials Science and
Engineering (Welding Metallurgy) from The University of Tennessee,
Knoxville, and Ph.D. in Materials Science and Engineering from SUNY Stony
Brook.  After completing his BS, Dr. White worked as a Metallurgical
Engineering for ABB Lummus Global where he developed/ reviewed welding
procedure specification/ procedure qualification records and selected
material of construction for Ethylene, Styrene, and Maleic Anhydride
petrochemical plants. After completing his MS, Dr. White worked for Misonix
Incorporated as a Materials Engineer where he developed welding procedures
and selected materials for ultrasonic medical instrumentation. While in
graduate school, Dr. White managed the heat treatment facilities for Skyo
Industries Inc. a mill to market torsion tool manufacturer. At Skyo
Industries Inc., Dr. White designed new materials and heat treatment
procedures to improve and maintain tool quality.  Dr. White was a member of
the faculty in the Materials Science and Engineering Department at Stony
Brook University from 1996-2007. During this period he was an National
Science Foundation Career Awardee, Chairman of the Metro NY/ NJ Chapter of
the American Society of Materials International, Accreditation Board of
Engineering & Technology Materials Science and Engineering Program
Evaluator, and Subject Matter Expert for the National Council of Examiners
for Engineering and Surveying. He continues to participate in the later two
activities.

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4.  DISCOVERY PARK NEWS
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4.1:  Burton Morgan building: security procedures adjusted: Effective March
31st, the building will be locked at 6:00 p.m.  There will no longer be a
student hired to ³sit² in the building.
When events are scheduled in the building during the evenings or weekends,
Denny Heath will hire students from the Purdue Security and Safety Patrol
(PSSP) as needed to keep an eye on the facility.  There will be a charge for
this service, which runs ~$10.00/hour with a minimum charge of $30.00.  If a
DP Staff Member will be acting as the guest liaison for your event and wants
to assume the responsibility for building security we would need to know
this at the time the room reservation is made.  In these instances, we would
not need to hire the student patrol.  All groups outside of Discovery Park
will automatically be required to use the student patrol service. When a
late reservation request is made (1-2 weeks), and a PSSP cannot be hired due
to student availability, the building doors will be locked at 6pm.  It will
be the responsibility of the guest liaison to make arrangements to gain
access to the building and to open the main doors for their attendees. These
arrangements can be made through Denny Heath and/or Valerie Lawless.
These procedures are consistent with University Policy and will help us
safeguard the facility.  Reservations should be requested by e-mail to Ruth
Ann Weiderhaft at weiderhaft at purdue.edu.  The request should include the
name of the group, date/time # of people, and room requested.  When events
and meetings are scheduled in the building outside of regular hours, Ruth
Ann Weiderhaft will forward a request to Denny Heath and Valerie Lawless to
keep the building unlocked for the meeting time.  This will also be the time
when patrol students will be requested as needed.