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Electrodeposition of Diamond-like Carbon Films

Description: Electrodeposition of diamond-like carbon (DLC) films was studied on different substrates using two different electrochemical methods. The first electrochemical method using a three-electrode system was studied to successfully deposit hydrogenated DLC films on Nickel, Copper and Brass substrates. The as-deposited films were characterized by scanning electron microscopy (SEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), fourier transform infrared spectroscopy (FTIR) and cyclic vol… more
Date: August 2002
Creator: Chen, Minhua
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Microstructural Phase Evolution In Laser Deposited Compositionally Graded Titanium Chromium Alloys

Description: A compositionally graded Ti-xCr (10≤x≤30 wt%) alloy has been fabricated using Laser Engineered Net Shaping (LENSTM) to study the microstructural phase evolution along a compositional gradient in both as-deposited and heat treated conditions (1000°C followed by furnace cooling or air cooling). The alloys were characterized by SEM BSE imaging, XRD, EBSD, TEM and micro-hardness measurements to determine processing-structure-property relations. For the as-deposited alloy, α-Ti, β-Ti, and TiCr2 (C15… more
Date: May 2016
Creator: Thomas, Jonova
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Effect of Amines as Corrosion Inhibitors for a Low Carbon Steel in Power Industry

Description: Commonly used amines in power industry, including morpholine, DBU (1,8-diazabicyclo[5.4.0]undec-7-ene), and DMA (dimethylallylamine) were evaluated for their effect on AISI 1018 steel at 250oF. Samples were exposed to an autoclave containing amine added aqueous solution at pH of 9.5 for 1, 2, 4, 6, 8, and 12 hours. Morphology studies were carried using scanning electron microscope (SEM), phase analysis was done utilizing Fourier transform infrared spectroscopy (FTIR), and weight loss was perfor… more
Date: December 2004
Creator: Díaz, Jorge G.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Characterization of Iron Oxide Deposits Formed at Comanche Peak Steam Electric Station

Description: The presence of deposits leading to corrosion of the steam generator (SG) systems is a major contributor to operation and maintenance cost of pressurized water reactor (PWR) plants. Formation and transport of corrosion products formed due to the presence of impurities, metallic oxides and cations in the secondary side of the SG units result in formation of deposits. This research deals with the characterization of deposit samples collected from the two SG units (unit 1 and unit 2) at Comanche P… more
Access: Restricted to the UNT Community Members at a UNT Libraries Location.
Date: May 2003
Creator: Namduri, Haritha
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Devaluing Stigma in the Context of Forgiveness, Coping and Adaptation: a Structural Regression Model of Reappraisal

Description: The 2010 National HIV/AIDS Strategy outlined three important goals for managing the current HIV pandemic in the U.S.: (1) reduce the number of people who become infected with HIV; (2) improve access to health care and health-related outcomes for people living with HIV/AIDS (PLH/A); and (3) reduce HIV-related health disparities. Each of these goals tacitly depends upon reducing HIV-related stigma, and this study examined how HIV+ individuals evaluate coping efforts to overcome stigma’s impact o… more
Date: May 2012
Creator: Gates, Michael S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Organizational Citizenship Behaviors Among Public Employees In Guadalajara Metropolitan Area, Mexico

Description: This study develops a theoretical framework to examine the major dimensions of transformational leadership style (TLS), public service motivation (PSM), organizational citizenship behavior (OCB), and public organization performance (POP). It is hypothesized that when employees perceived a public organization is practicing a transformational leadership style, they are likely to have a favorable view on the performance of their organization, but the effect is indirect and mediated by OCB. At th… more
Date: December 2011
Creator: León Cázares, Filadelfo
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Surface

Description: Photograph of a scan taken by a focused ion beam (FIB) microscope. The scan shows a large group of thin, elongated forms connected to an irregular surface.
Date: November 9, 2005
Creator: University of North Texas. Center for Media Production.
Item Type: Refine your search to only Photograph
Location: 33.254084 -97.153583
Partner: UNT Libraries Special Collections
captions transcript

UNT mill movie

Description: A video of a scan of the University of North Texas logo, taken by a focused ion beam (FIB) microscope.
Date: March 16, 2005
Duration: 1 minute 33 seconds
Creator: University of North Texas. Center for Media Production.
Item Type: Refine your search to only Video
Location: 33.254084 -97.153583
Partner: UNT Libraries Special Collections
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