Search Results

open access

Point-by-Point Compositional Analysis for Atom Probe Tomography

Description: This article demonstrates a new alternate approach to data processing for analyses that traditionally employed grid-based counting methods, as demonstrated using an atom-probe analysis of a Ni-based super-alloy.
Date: March 5, 2014
Creator: Stephenson, Leigh T.; Ceguerra, Anna V.; Li, Tong; Rojhirunsakool, Tanaporn; Nag, Soumya; Banerjee, Rajarshi et al.
Partner: UNT College of Engineering
open access

Exceptional Friction Mitigation via Subsurface Plastic Shear in Defective Nanocrystalline Ceramics

Description: This article reports that atomic layer deposition {0002}-textured ZnO films, with nanocolumnar grains and defective sub-stoichiometric structure, exhibit nanocrystalline plasticity and exceptionally low sliding friction and wear.
Date: June 13, 2014
Creator: Mohseni, Hamidreza; Mensah, B. A.; Gupta, N.; Srinivasan, S. G. & Scharf, Thomas W.
Partner: UNT College of Education
open access

Polymorphic nature of {332} 〈 113 〉 twinning mode in BCC alloys

Description: Article using ab initio calculations and experimental observations to show that {332}<113> twinning can be described as a polymorphic solid-state transformation able to produce either twinned or martensitic structures with a unified transformation path.
Date: March 17, 2022
Creator: Kwasniak, P.; Sun, F.; Mantri, Srinivas Aditya; Banerjee, Rajarshi & Prima, Frederic
Partner: UNT College of Engineering
open access

Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed A₁₀.₁CoCrFeNi High Entropy Alloy

Description: This article reports grain refinement using friction stir processing and a detailed study on the microstructural evolution at various locations in the processed region using scanning electron microscopy, in addition to the effect of grain refinement on the tensile properties and the underlying deformation mechanisms in both coarse-grained and fine-grained materials.
Date: September 15, 2014
Creator: Komarasamy, Mageshwari; Kumar, N.; Tang, Z.; Mishra, Rajiv & Liaw, P.K.
Partner: UNT College of Engineering
open access

Strengthening strategy for a ductile metastable β-titanium alloy using low-temperature aging

Description: This article demonstrates that low-temperature aging (LTA) treatments for short time periods can in fact enhance the yield strength while preserving substantial elongation-to-failure in ω containing β titanium alloys.
Date: July 13, 2017
Creator: Sun, F.; Zhang, J.Y.; Vermaut, P.; Choudhuri, Deep; Alam, Talukder; Mantri, Srinivas Aditya et al.
Partner: UNT College of Engineering
open access

A Review of Diagnostics Methodologies for Metal Additive Manufacturing Processes and Products

Description: This article is a review summarizing and discussing various ex-situ inspections and in-situ monitoring methods, including electron-based methods, thermal methods, acoustic methods, laser breakdown, and mechanical methods, for metal additive manufacturing.
Date: August 30, 2021
Creator: Yang, Teng; Mazumder, Sangram; Jin, Yuqi; Squires, Brian; Sofield, Matthew; Pantawane, Mangesh V. et al.
Partner: University of North Texas
open access

Preparation and Characterization of Injectable Brushite Filled-Poly (Methyl Methacrylate) Bone Cement

Description: This article discusses the design of an alternative cement system that can better accommodate calcium-phosphate additives while preserving cement rheological properties and performance.
Date: September 19, 2014
Creator: Rodriguez, Lucas C.; Chari, Jonathan; Aghyarian, Shant; Gindri, Izabelle M.; Kosmopoulos, Victor & Rodrigues, Danieli C.
Partner: UNT College of Engineering
open access

Effect of Substrate Support on Dynamic Graphene/Metal Electrical Contacts

Description: This article investigates the stability of dynamic electrical contacts at a graphene/metal interface using atomic force microscopy (AFM), under static conditions with variable normal loads and under sliding conditions with variable speeds.
Date: April 7, 2018
Creator: Lee, Jihyung; Hu, Xiaoli; Voevodin, Andrey A.; Martini, Ashlie & Berman, Diana
Partner: UNT College of Engineering
open access

Additive friction stir deposition: a deformation processing route to metal additive manufacturing

Description: This article outlines key advantages of additive friction stir deposition, e.g. rendering fully-dense material in the as-printed state with fine, equiaxed microstructures, identifies its niche engineering uses, and points out future research needs in process physics and materials innovation.
Date: November 24, 2020
Creator: Yu, Hang Z. & Mishra, Rajiv
Partner: UNT College of Engineering
open access

Ordering-mediated local nano-clustering results in unusually large Hall-Petch strengthening coefficients in high entropy alloys

Description: This article reports a dramatic increase in the grain boundary strengthening or Hall-Petch coefficient, K, by systematically investigating the effect of Al addition on tensile yield strength in CoFeNi and CoCrFeNi high entropy alloys (HEAs) or complex concentrated alloys (CCAs). Such a trend is attributed to the ordering mediated nano-clustering in Al containing HEA/CCAs.
Date: January 23, 2021
Creator: Jagetia, Abhinav; Nartu, M. S. K. K. Y.; Dasari, S.; Sharma, A.; Gwalani, Bharat & Banerjee, Rajarshi
Partner: UNT College of Engineering
open access

Achieving extraordinary structural efficiency in a wrought magnesium rare earth alloy

Description: Article describes development of an ultrafine-grained magnesium alloy with an extraordinary strength and ductility combination, exceptional high specific strength, zero yield strength asymmetry and excellent high strain rate superplasticity.
Date: January 29, 2020
Creator: Panigrahi, S. K.; Mishra, Rajiv; Brennan, R.C. & Cho, K. C.
Partner: UNT College of Engineering
open access

Microstructure and surface texture driven improvement in in-vitro response of laser surface processed AZ31B magnesium alloy

Description: This article explores the effects of laser surface melting on microstructure and surface topography evolution in AZ31B magnesium alloy.
Date: January 19, 2021
Creator: Wu, Tso-Chang; Joshi, Sameehan; Ho, Yee-Hsien; Pantawane, Mangesh V.; Sinha, Subhasis & Dahotre, Narendra B.
Partner: UNT College of Engineering
open access

Effect of Cr Addition on γ-γ' Cobalt-Based Co-Mo-Al-Ta Class of Superalloys: A Combined Experimental and Computational Study

Description: This article deals with effect of Cr addition (10 at.%) on the partitioning behavior and the consequent effect on mechanical properties for tungsten-free γ-γ' cobalt-based superalloys with base alloy compositions of Co–30Ni–10Al–5Mo–2Ta (2Ta) and Co–30Ni–10Al–5Mo–2Ta–2Ti (2Ta2Ti).
Date: June 12, 2017
Creator: Nithin, B.; Samanta, A.; Makineni, S. K.; Alam, Talukder; Pandey, P.; Singh, Abhishek K. et al.
Partner: UNT College of Engineering
open access

Sc3N@C80 and La@C82 doped graphene for a new class of optoelectronic devices

Description: This is the Author Manuscript version of an article presenting high-performance hybrid graphene photodetectors prepared with endohedral fullerenes deposited on graphene using electrophoretic methods for the first time.
Date: December 19, 2019
Creator: Jayanand, Kishan; Min, Misook; Chugh, Srishti; Kaul, Anupama; Adhikari, Nirmal & Echegoyen, Luis
Partner: UNT College of Engineering
open access

Self-Assembly Techniques for Nanofabrication

Description: Article introduces a special issue of the Journal of Nanomaterials that addresses the research studies on fabrication, processing, and applications of self-assembled nanostructures.
Date: December 24, 2013
Creator: Kajbafvala, Amir; Bahmanpour, Hamed; Maneshian, Mohammad H. & Li, Minghang
Partner: UNT College of Engineering
Back to Top of Screen