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Description:: Elemental powder blends are an emerging alternative to prealloyed powders for high-throughput alloy design via additive manufacturing techniques due to their flexibility, low cost, and ease of customization. This dissertation investigates elemental alloying elements (Sc and Zr) which are high-melting and highly reactive, unlike previous work which focused on more...
Keyword:: additive manufacturing, in situ diffraction, elemental blends, laser powder-bed fusion, aluminum, and creep
Subject:: Materials Science
Creator:: Glerum, Jennifer Anne
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 02/16/2023
Date Created:: 2022-01-01
Resource Type:: Dissertation
Alternate Identifier:: http://dissertations.umi.com/northwestern:16304 and etdadmin_upload_936163

Description:: In the face of a changing climate caused by anthropomorphic release of carbon dioxide and other greenhouse gases, major governments have committed to the reduction of CO2 and other emissions over time, requiring increased reliance on forms of carbon-free renewable energy. The inherent intermittency of renewable electricity sources creates a...
Keyword:: additive manufacturing, Solid oxide electrolyzer, Solid oxide fuel cell, ceramics, exsolution , and 3D-printing
Subject:: Nanoscience, Materials Science, and Engineering
Creator:: Geisendorfer, Nicholas R
Owner:: Scholarly Digital Publishing
Language:: en
Date Uploaded:: 06/22/2022
Date Created:: 2021-01-01
Resource Type:: Dissertation
Alternate Identifier:: etdadmin_upload_873708 and http://dissertations.umi.com/northwestern:15899

Description:: Porous metal structures exhibit numerous advantages over dense materials due to their high specific stiffness, strength, damping, energy absorption, and surface areas, making them suitable for applications ranging from actuators to medical implants. However, traditional foam manufacturing methods do not provide sufficient control of the foam micro-architectures, and the creation...
Keyword:: additive manufacturing, powder metallurgy, NiTi, porous metal, bone implant, and Ni-Mn-Ga
Subject:: Materials Science and Engineering
Creator:: Shannon Lee Taylor
Owner:: Scholarly Digital Publishing
Date Uploaded:: 02/08/2019
Date Modified:: 02/08/2019
Date Created:: 2017-01-01
Resource Type:: Dissertation

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