Friction stir welding of SS 316 LN and Nitronic 50 jacket sections for application in superconducting fusion magnet systems (open access)

Friction stir welding of SS 316 LN and Nitronic 50 jacket sections for application in superconducting fusion magnet systems

Article explores the possibility of using friction stir welding (FSW) to join jacket web sections of two nitrogen-containing stainless steels for housing internally cooled superconducting cables which are utilized to generate magnetic fields in tokamak type fusion reactor systems. It has been shown that the FSW fabricated SS 316 LN jackets possessed the required strength and magnetic properties critical to this application.
Date: July 16, 2022
Creator: Gaddam, Supreeth; Haridas, Ravi Sankar; Sanabria, Charlie; Tammana, Deepthi; Berman, Diana & Mishra, R. S.
System: The UNT Digital Library
Can a simple topological-constraints-based model predict the initial dissolution rate of borosilicate and aluminosilicate glasses? (open access)

Can a simple topological-constraints-based model predict the initial dissolution rate of borosilicate and aluminosilicate glasses?

This article, as an alternative route to empirical models, shows that a structural descriptor based on the number of topological constraints per atom can be used to predict the initial dissolution rate of aluminosilicate and borosilicate glasses after being parameterized on different families of glasses (specific series of borosilicate glasses). Results show that, provided that corrections are made for high alkali content glasses that dissolve incongruently (preferential release of Na), the model gives reasonable predictions, even far from its training domain.
Date: March 16, 2020
Creator: Gin, Stéphane; Wang, Mengyi; Bisbrouck, Nicolas; Taron, Mélanie; Lu, Xiaonan; Deng, Lu et al.
System: The UNT Digital Library
Hierarchical Eutectoid Nano-lamellar Decomposition in an Al0.3CoFeNi Complex Concentrated Alloy (open access)

Hierarchical Eutectoid Nano-lamellar Decomposition in an Al0.3CoFeNi Complex Concentrated Alloy

Article discusses a novel eutectoid nano-lamellar (FCC + L12)/(BCC + B2) microstructure that has been discovered in a relatively simple Al0.3CoFeNi high entropy alloy (HEA) or complex concentrated alloy (CCA).
Date: March 16, 2020
Creator: Dasari, Sriswaroop; Gwalani, Bharat; Jagetia, Abhinav; Soni, V.; Gorsse, Stéphane & Banerjee, Rajarshi
System: The UNT Digital Library
Effect of Length, Diameter, Chirality, Deformation, and Strain on Contact Thermal Conductance Between Single-Wall Carbon Nanotubes (open access)

Effect of Length, Diameter, Chirality, Deformation, and Strain on Contact Thermal Conductance Between Single-Wall Carbon Nanotubes

This article explores the role of various geometrical and structural (length, diameter, chirality) as well as external (deformation and strain) carbon nanotube (CNT) parameters to estimate total as well as area-normalized thermal conductance across cross-contact interconnects.
Date: April 16, 2018
Creator: Varshney, Vikas; Lee, Jonghoon; Brown, Joshua S.; Farmer, Barry L.; Voevodin, Andrey A. & Roy, Ajit
System: The UNT Digital Library
Improvement of Scratch and Wear Resistance of Polymers by Fillers Including Nanofillers (open access)

Improvement of Scratch and Wear Resistance of Polymers by Fillers Including Nanofillers

This article reviews approaches for improvement of tribological properties of polymers based on inclusion of fillers.
Date: March 16, 2017
Creator: Brostow, Witold, 1934-; Hagg Lobland, Haley E.; Hnatchuk, Nathalie & Pérez, José M.
System: The UNT Digital Library
Uv-Induced Modification of Fused Silica: Insights From ReaxFF-Based Molecular Dynamics Simulations (open access)

Uv-Induced Modification of Fused Silica: Insights From ReaxFF-Based Molecular Dynamics Simulations

This article discusses molecular dynamics simulations performed to present evidence that silica structure in both short and medium ranges is directly modified by UV-induced defects.
Date: September 16, 2016
Creator: Tian, Ye; Du, Jincheng; Zu, Xiaotao; Han, Wei; Yuan, Xiaodong & Zheng, Wanguo
System: The UNT Digital Library