National Science and Technology Development Agency (NSTDA),
Association of Thai Professionals in America and Canada (ATPAC) and Texas Tech University
Proudly Present Special Lecture in Materials Science in Space:

**ปิดลงทะเบียน**

The Value and Limitations of Performing
Materials Science in Space-a case study

by Dr. Albert Sacco, Jr. Dean Whitacre College of Engineering Texas Tech University - Scientist Astronaut - Payload Specialist on the Space Shuttle Columbia on shuttle mission STS-73 in 1995.

Abstract: The free fall environment of low earth orbit provides an unmatched laboratory to investigate and better understand the affect(s) of fluid motion on the nucleation and on the growth of crystalline materials. Fluid motion and the concomitant heat and mass transfer affect a material's structure, morphology and often its properties. However, performing experiments in low earth orbit is not the same as performing those experiments in a normal gravity environment. Surface tension becomes a more dominant force in orbit. This results in bubbles/foam stabilization with the associated problems of numerous multiple phase interfaces, thermal and solutal capillary flows, difficulties in uniform heating and difficulties with mixing fluids which have different surface tensions. Video illustrating some of these difficulties will be presented along with data that shows if performed correctly morphology, defect concentration and size can be positively affected. Finally, a case will be presented where space crystals/data helped verify the active catalytic site of an industrially important reaction.

Tuesday, 15 August 2017, 9.00 – 12.00 hrs.
Room 110 (Theater), Central Building
NSTDA, Pathum Thani

Limited 50 seats!

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by email*****