Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"Orientation Relationship"”.
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A study of grain boundary structure in B doped Ni3Al
… structure in Ll₂ compounds for different misorientations between two grains. The size of interstitial sites in these boundaries was calculated to understand the segregation of B to the boundaries. Ratios of the B-B equilibrium interatomic distance to the nearest neighbour distances in various …
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The Effect of Stress State and Precipitation on Stress-Induced Martensitic Transformations in Polycrystalline and Single Crystal Shape Memory Alloys: Experiments and Micro-Mechanical Modeling
… in NiTi. Using the model, the decrease in the orientation dependence of $\sigma\sb{\rm cr}$ is linked to the unique orientation relationship that exists between the coherent precipitates in NiTi and the martensite correspondence variant pairs. As experimentally observed the model predicts that …
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Quality of work environment for counselor education faculty.
… including gender, age, ethnicity, sexual orientation, relationship status, and parenting status; and work-related variables including rank, sexual harassment, gender discrimination, salary equity, mentoring, teaching activities, service activities, publication for collaboration, and …
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Characterization and Mechanical Properties of Nanoscale Precipitates in Modified Al-Si-Cu Alloys Using Transmission Electron Microscopy and 3D Atom Probe Tomography.
… the chemical composition, crystal structure, and orientation relationship as well as precipitate morphology in order to understand the precipitation behavior and strengthening mechanism. In this study, the mechanical properties and microstructure were investigated using transmission electron …
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Spatial confinement of metallodielectric eutectic alloys and related outreach curriculum studies
… regions of the sample, suggesting an unseen orientation relationship between Ge and Al. This orientation relationship seems to allow for local cooperative phase growth, similar to that seen in normal eutectic or non-faceted/non-faceted systems. Preliminary optical analysis of this material …
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The role of defects during precipitate growth in a Ni-45wt% Cr alloy
… electron microscopy (TEM) observations, the orientation of the habit plane results from advancing growth ledges on the conjugate plane of the Kurdjumov-Sachs orientation relationship. Using embedded atom method (EAM) simulations, the interfacial energy of the (12¯1)<sub>f</sub> habit plane is …
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Religiosity and Engagement in HIV Care Among African American People Living with HIV
… from participants including gender, sexual orientation, relationship status, age, race, and religiosity (and when appropriate, number of years associated with the church, anti-retroviral medication adherence, and doctor’s appointment visits). Individual interview and focus group questions …
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Beyond homophobia: development and validation of the Gay Affirmative Practice Scale (GAP)
… validity, as demonstrated by significant relationships with measures of homophobia, and discriminant construct validity, as demonstrated by a non-significant relationship with a measure of social desirability. Significant relationships were found with GAP scores and measures of contact and …
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Multiscale Microstructural Investigation of the Ductile Phase Toughening Effect in a Bi-phase Tungsten Heavy Alloy
… of the connections between structure-property relationships in these multiphase composite microstructures has been undertaken, employing advanced characterization techniques to bridge the macro, micro, and nanoscales for the purpose of generating a framework for the understanding of the ductile …
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The establishment of implicit perspectives of personality among Zulu-speaking people in South Africa
… self-acceptance, meanness, slickness, family orientation, relationship orientation, harmony, flexibility, modernisation, introversion versus extroversion, leadership, and social orientation can be seen as characteristics indigenous to the Zulu culture. Recommendations were made for future …
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Bainitic steel with 30 GPa% characteristics
… austenite grain structure. The Habit plane, orientation relationship and associated shape strain were characterized simultaneously for the first time on individual bainite plates. The irrational habit plane of bainite measured by the two surface analysis was found to be close to {457}γ , …
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Deposition and characterisation of bismuth layer-structured ferroelectric films
… substrates, respectively. A three-dimensional orientation relationship between films and substrates was derived as: BNdT(001)//STO(001), BNdT[ 110 ]//STO[100]. Films showed strong dependence of structural and ferroelectric properties on the crystal orientation. PLD-grown BSmT films on …
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Microstructural formations and phase transformation pathways in tantalum carbides
… of multiple phases generates various orientation relationships that influence the grain morphology. Depending on carbon content, the grains were equiaxed, equiaxed with a cross-hatch pattern of thin laths of secondary phases, to acicular grains. The microstructures were quantified …
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Solidification behavior and texture of laser-wire directed energy deposition of 316L austenitic stainless steel
… the solidification sequence for which distinct orientation relationships and crystallographic texture between delta-ferrite and austenite developed. Skeletal and interdendritic delta-ferrite exhibited a (001) austenite // (001) delta-ferrite relationship with austenite and a {001} solidification …
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The cold rolling and primary recrystallisation textures of austenitic stainless steels.
… textures of stainless steels. Preferred orientations have been assessed by X-ray determination of pole figures. The work is supplemented by other techniques - quantitative phase analysis of austenite and martensite, determination of diffraction line profiles, hardness measurements, …
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Radiation-induced microstructural and mechanical property modifications in advanced alloys
… precipitates. Radiation-induced change in the orientation relationship of preexisting MX precipitates was observed. Intragranular Cr-rich carbides with a core-shell structure, i.e. Cr-rich carbide core and Ni,Si-rich shell was found at 500 and 600C in the highest dose (150 peak dpa) specimens. …
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Microstructure Dual-Refinement and Mechanical Properties Manipulation of TiBw/TA15(Si) Composites by Thermo-mechanical Processing and Heat Treatment
… and strain rates of 0.01 s-1 to 0.001 s-1. The orientation distribution of TiBw reinforcements during high-temperature plastic deformation in materials has been studied. The rotational behavior of TiBw reinforcements during deformation was analyzed, revealing that the orientation distribution of …
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Youth correctional officer orientation and opinions on relationships with youth
… design was used to examine officers’ orientation to their work, how they view their interactions with youth and their opinions on relationships with youth in custody. Quantitative data was collected to assess demographics, correctional orientation, and officer typology. Qualitative …