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Title:In-Situ Studies of Copper Nanoparticles Using a Novel Tandem Ultra-High Vacuum Particle Production Chamber Transmission Electron Microscope
Author(s):Olynick, Deirdre Lynn
Doctoral Committee Chair(s):Gibson, J. Murray
Department / Program:Materials Science and Engineering
Discipline:Materials Science and Engineering
Degree Granting Institution:University of Illinois at Urbana-Champaign
Subject(s):Physics, Condensed Matter
Abstract:Nanophase materials, a compaction of nano-particles, are arguably a new phase of matter whose high grain-boundary-to-volume ratio leads to new and enhanced material properties. Previously, these materials have been difficult to study because of their sensitivity to contaminating atmospheres. We have built a novel apparatus, an ultra-clean nano-particle production chamber connected directly to a ultra-high vacuum transmission electron microscope (UHVTEM), which allows in-situ TEM study of various nano-particle phenomena without exposure to contaminating atmospheres. Using this apparatus, we have shown specific contaminants' effects on copper nano-particle growth mechanics, morphology, and sintering. Our findings contribute significantly to our understanding of nano-particles and shed light on how to approach the ideal nanophase material.
Issue Date:1997
Description:86 p.
Thesis (Ph.D.)--University of Illinois at Urbana-Champaign, 1997.
Other Identifier(s):(MiAaPQ)AAI9737213
Date Available in IDEALS:2015-09-25
Date Deposited:1997

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