March 2013 - Msepostdoc-list

FW: SEMINAR NOTICE: S. Dubelman, PhD Final Exam, Thur. 3-28-13, 7:30 am, ARMS 1028
by Stacey, Lisa A 21 Mar '13

21 Mar '13

Please see seminar notice below: MATERIALS SCIENCE AND ENGINEERING SEMINAR Failure Analysis of Micron Scaled Silicon Under High Rate Tensile Loading By: Steven J. Dubelman Ph.D. Final Examination Advisor: Prof. W. Chen ABSTRACT Structures have been built at micro scales with unique failure mechanism not yet well understood, in particular, under high-rate loading conditions. Consequently, MEMS devices suffer from inconsistent performance and insufficient reliability. This research aims to understanding the failure mechanisms in micro-scaled specimens deforming at high rates. Single crystal silicon micro beams that are 4 microns thick are subjected to tensile loading at average strain rates of 100 s-1 using a miniature modified Kolsky tension bar. A capacitance displacement system and piezoelectric load cell are incorporated to measure the strain and stress of the silicon micro beams directly to ensure precision. Extreme fragmentation of the beams occurs during failure and this phenomenon is observed using a high speed camera. A debris retention system is used to capture the silicon fragments for direct inspection using a Scanning Electron Microscope. The failure mechanism of the micro beams is attributed the presence of multiple micron scaled surface defects rather than any one large critical flaw. Date: Thursday, March 28, 2013 Time: 7:30 A.M. Place: ARMS 1028 Thank you, Lisa Stacey Secretary/Development Assistant Purdue University School of Materials Engineering 765/494-4100

1 0

FW: Winchell Seminar Reminder - P. Sanders, Fri., 3/22/13, 3:30 pm, ARMS 1010
by Stacey, Lisa A 21 Mar '13

21 Mar '13

Reminder: Tomorrow is our next Peter Winchell Lecture Series Seminar, featuring Prof. Paul Sanders from Michigan Tech University. Please plan to attend. Thank you, Lisa Stacey Secretary/Development Assistant Purdue University School of Materials Engineering 765/494-4100

1 0

Fwd: RE: Physical Facilities Connection – March 21, 2013
by Donna Bystrom 21 Mar '13

21 Mar '13

All, I have contacted Parking Facilities for additional information concerning the PGNW entry closure taking place tomorrow afternoon; it is the northern-most entry on the Northwestern side of the structure. All other entries will be open as usual. Thanks, Donna Ahlen _ ________________________________ _ <https://www.purdue.edu/pfcommunications/construction_notices/pgnw_entrance_…>

1 0

Fwd: FW: Physical Facilities Connection – March 21, 2013
by Donna Bystrom 21 Mar '13

21 Mar '13

*University-Wide News* Boilermaker Butcher Block <https://www.purdue.edu/pfcommunications/university_wide/campus_partners/but…> *Construction Notices* Main Entrance of PGNW Closed the Afternoon of March 22 <https://www.purdue.edu/pfcommunications/construction_notices/pgnw_entrance_…>

1 0

Fwd: Midwest Mechanics Seminar speaker Dr. Sanjay Govindjee March 25 ME 3006 4:30 p.m.
by Donna Bystrom 21 Mar '13

21 Mar '13

1 0

FW: AAE Spring 2013 Colloquium Series
by Stacey, Lisa A 20 Mar '13

20 Mar '13

Please see attached seminar announcement from AAE. Thanks, Lisa Stacey Secretary/Development Assistant Purdue University School of Materials Engineering 765/494-4100

1 0

FW: SEMINAR REMINDER: M. Cherukara, Ph.d Prelim Exam Part I, Wed. 3/20/13, 1:00 pm, ARMS 1028
by Stacey, Lisa A 19 Mar '13

19 Mar '13

Please see seminar notice for tomorrow below: MATERIALS SCIENCE AND ENGINEERING SEMINAR Thermal Conductivity of Silicon and Silicon/Germanium Core/Shell Nanowires By: Matthew Cherukara Ph.D. Prelim Examination Part I Advisor: Prof. A. Strachan ABSTRACT Thermoelectricity, the conversion of temperature differences to differences in electrical potential and vice versa, has been known since the early 19th century from work done by Seebeck, Peltier and Thomson. Their widespread use is still limited, however, by the low efficiencies of the best thermoelectric materials available today. The thermoelectric efficiency, described by a figure of merit (ZT), is a function of both the thermal and electronic properties of the material. Recent attempts to improve the ZT of materials have focused on the reduction of thermal conductivity without adversely affecting the electronic conductivity of the material. Si/Ge core/shell nanowires show promise, with the reduction in thermal conductivity coming from the increased phonon scattering at the interfaces and at the free surface. The proposed use of an amorphous Ge coating on crystalline Si and the use of core/shelled nanotubes could further lower the thermal conductivity, possibly improving the efficiency enough for this class of materials to compete with traditional systems of cooling and power generation. Date: Wednesday, March 20, 2013 Time: 1:00 P.M. Place: ARMS 1028 Lisa Stacey Secretary/Development Assistant Purdue University School of Materials Engineering 765/494-4100

1 0

Fwd: AAE Colloquium : April 18th @ 3:00pm ~ Prof. Thomas Jackson "Issues Related to Heterogeneous Solid-Propellant Combustion"
by Donna Bystrom 19 Mar '13

19 Mar '13

*//* */ /*

1 0

Fwd: Fwd: MSE Student Night - RSVP Requested
by Donna Bystrom 18 Mar '13

18 Mar '13

Everyone: Please see the message below regarding MSE Student Night. Donna ** ** *You’re invited! *The annual MSE Student Night celebration will be held on April 25,2013 at the Ross-Ade Stadium Press Boxes (Buchanan Club). We hope you’ll be able to attend this event which celebrates the accomplishments of MSE students. This event brings together students, faculty, staff and industry sponsors for an evening of networking and award presentations, as well as food and a presentation by MSE Head, Dr. Dave Bahr. Please see the attached flyer and RSVP as soon as possible by clicking on the link below. https://purdue.qualtrics.com/SE/?SID=SV_1MwqX04pNHiNlZ3 Robyn Oldfather Director of Development School of Materials Engineering 765-494-4094

1 0

Save the Dates: COE Inaugural Faculty Colloquium Series
by Stacey, Lisa A 18 Mar '13

18 Mar '13

[Purdue University] The College of Engineering invites you to attend THE CELEBRATION OF FACULTY CAREERS INAUGURAL COLLOQUIUM SERIES Celebrate our faculty members' diverse impact on education, scholarship, engagement and disciplines. [CHARLES M. KROUSGRILL JR.] CHARLES M. KROUSGRILL JR. Friday, March 22, 2013 3:30 p.m. seminar, Mechanical Engineering Building, Room 2061 4:30 p.m. reception, Roger B. Gatewood Mechanical Engineering Atrium [JOSEPH F. PEKNY] JOSEPH F. PEKNY Friday, March 29, 2013 3:30 p.m. seminar, Forney Hall of Chemical Engineering, Room G124 4:30 p.m. reception, Forney Hall, Henson Atrium [CAROL A. HANDWERKER] CAROL A. HANDWERKER Monday, April 8, 2013 3:30 p.m. seminar, Neil Armstrong Hall of Engineering, Room 1010 4:30 p.m. reception, Neil Armstrong Hall of Engineering, Kurz Atrium RSVP to the Office of Strategic Events 765-494-0900, 800-213-3044 or events(a)purdue.edu<mailto:events@purdue.edu> Please advise of special needs Parking available in Northwestern Parking Garage<https://maps.google.com/?ll=40.429746,-86.91186&spn=0.003577,0.004377&t=m&z…> [Purdue Engineering]

1 0