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Aao thesis

Aao thesis

Show full item record Abstract Porous anodic aluminum oxide AAOalso known as porous alumina, is a self-ordered nanostructured material well-suited for use in electronic, magnetic, optical and biological applications due to its small pore size nm and spacing nm.

Under slightly acidic conditions, both oxidation and dissolution of aluminum leads to the formation of pores.

Aao thesis

AAO pores form a self-assembled honey-comb structure with short range order over certain ranges of anodic potential and pH. In this work, three key results related to porous AAO science and technology are presented.

First, a new theory based on strain-induced instability has been developed from the aao thesis of results obtained from kinetic studies and stress measurements to explain the formation of AAO pores. Second, templated self-assembly TSA of AAO pores, ordered over wafer-scale areas and with controlled spacing and symmetry, have been achieved by pre-patterning the substrate using interference lithography.

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TSA of AAO pores led to control of pore spacing and order symmetry in ranges not achievable without templating. A 1-D array of ordered pores, either in or out of plane with the substrate, was fabricated by confining the growth of AAO pores using silicon oxide masks patterned by lithography techniques.

Abstract: In this thesis, mechanical deformation behaviors of nanoporous anodic aluminum oxide (AAO) membranes and associated mechanical properties were. Porous anodic aluminum oxide (AAO), also known as porous alumina, is a Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Materials Science.

Finally, AAO templates were used to fabricate ordered nanostructures including carbon nanotubes, magnetic nanotubes and antidots, and metallic nanowires and nanoparticles, all of which display properties very different from their bulk counterparts. These results, and other proposed methodologies, provide new techniques for controlled in-plane and out-of-plane growth and organization of nanotubes and nanowires on Si substrates.

The most important thing to understand about your conceptual framework is that it is primarily a aao aao thesis or model of what is out there that you plan to study, and of what is going on with these things and why-a tentative theory of the phenomena that you are investigating.

After you have read and synthesized numerous peer-reviewed aao theses related to the topic, you will notice a few theories or conceptual models that aligned with several studies.

MIT Institute Archives copy: p. Includes bibliographical references p.

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