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292 Matching Results
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Soft crystal martensites: An in situ resonant soft x-ray scattering study of a liquid crystal martensitic transformation
Article presents an in-depth discussion of liquid crystal blue phases (BPs).
Date:
March 27, 2020
Creator:
Min Jin, Hyeong; Li, Xaio; Dolan, James A.; Kline, R. Joseph; Martínez-González, José A.; Ren, Jiaxing et al.
Object Type:
Article
System:
The UNT Digital Library
Composition-dependent apparent activation-energy and sluggish grain-growth in high entropy alloys
Article discusses experimental results which reveal that the apparent activation-energy for grain-growth in an fcc-based AlxCoCrFeNi high entropy alloy (HEA) system increases from 179 to 486 kJ/mol when the Al content increases from x = 0.1 to 0.3.
Date:
April 10, 2019
Creator:
Gwalani, Bharat; Salloom, Riyadh; Alam, Talukder; Valentin, S.G.; Zhou, X.; Thompson, G. et al.
Object Type:
Article
System:
The UNT Digital Library
Tribologically induced nanolaminate in a cold-sprayed WC-reinforced Cu matrix composite: a key to high wear resistance
Article describes an experiment where a self-organized 2D nanolaminate with an average lamella thickness of ~22 nm was formed in the subsurface of a cold-sprayed WC-reinforced metal matrix composite (MMC) Cu-MoS2-WC during oscillatory sliding, resulting in more stable friction and improved wear resistance.
Date:
November 15, 2019
Creator:
Zhang, Yinyin; Choudhuri, Deep; Scharf, Thomas W.; Descartes, Sylvie & Chromik, Richard R.
Object Type:
Article
System:
The UNT Digital Library
From mechanics to thermodynamics: A relation between the brittleness and the thermal expansivity for polymers
Article provides an equation relating the linear isobaric expansivity to the brittleness B for a number of polymers with a large variety of chemical structures and consequently with a large variety of properties.
Date:
February 19, 2019
Creator:
Brostow, Witold, 1934- & Osmanson, Allison T.
Object Type:
Article
System:
The UNT Digital Library
Metal Coordination‐Mediated Functional Grading and Self‐Healing in Mussel Byssus Cuticle
Article demonstrates direct evidence of Fe3+ and Fe2+ gradient distribution across mussel byssal cuticle threads thickness, which shows more Fe2+ inside the inner cuticle, to support the hypothesis that the cuticle is a functionally graded material with high stiffness, extensibility, and self‐healing capacity.
Date:
October 24, 2019
Creator:
Xu, Quan; Xu, Meng; Lin, Chun-Yu; Zhao, Qiang; Zhang, Rui; Dong, Xiaoxiao et al.
Object Type:
Article
System:
The UNT Digital Library
Synthesis, characterization, and in vitro evaluation of gamma radiation-induced PEGylated isoniazid
Article describes experiment where researchers synthesized a PEGylated isoniazid (PEG-g-INH or PEG–INH) by gamma radiation-induced polymerization for the first time.
Date:
August 6, 2019
Creator:
González-Torres, Maykel; Guzmán-Beltrán, Silvia; Mata-Gómez, Marco A.; González-Valdez, José; Leyva-Gómez, Gerardo; Melgarejo-Ramírez, Yaaziel et al.
Object Type:
Article
System:
The UNT Digital Library
The Structure of Amorphous and Deeply Supercooled Liquid Alumina
Article describes experiment in which liquid Al2O3 was supercooled more than 500 K below its melting point (Tm = 2,327 K) using aerodynamic levitation and laser heating techniques.
Date:
March 19, 2019
Creator:
Shi, Caijuan; Alderman, Oliver L.G.; Berman, Diana; Du, Jincheng & Neuefeind, Joerg
Object Type:
Article
System:
The UNT Digital Library
Detrimental Effects and Prevention of Acidic Electrolytes on Oxygen Reduction Reaction Catalytic Performance of Heteroatom-Doped Graphene Catalysts
Article describes study in which the density functional theory (DFT) methods were applied to understand the inferior performance of doped graphene in acid.
Date:
November 21, 2019
Creator:
Ma, Jun; Gong, Lele; Shen, Yang; Sun, Defeng; Liu, Bowen; Zhang, Jing et al.
Object Type:
Article
System:
The UNT Digital Library
Noble-Metal based Metallic Glasses as Highly Catalytic Materials for Hydrogen Oxidation Reaction in Fuel Cells
Article describes study evaluating the electro-catalytic behavior of recently developed Pt-, Pd-, and Pt/Pd-based metallic glasses using scanning electrochemical microscopy.
Date:
August 20, 2019
Creator:
Hasannaeimi, Vahid & Mukherjee, Sundeep
Object Type:
Article
System:
The UNT Digital Library
Nanoindentation behavior of high entropy alloys with transformation-induced plasticity
Article describes an experiment where nanoindentation of three metastable dual-phase high entropy alloys (HEAs) was performed to obtain their inherent elastoplastic deformation responses.
Date:
April 29, 2019
Creator:
Sinha, S.; Mirshams, Reza; Wang, Tianhao; Nene, S. S.; Frank, M.; Liu, K et al.
Object Type:
Article
System:
The UNT Digital Library
Nature-Guided Synthesis of Advanced Bio-Lubricants
Article describes study which finds that Orychophragmus violaceus (Ov) seed oil has superior lubrication properties, based on the unusual structural features of the major lipid species—triacylglycerol (TAG) estolides.
Date:
August 12, 2019
Creator:
Romsdahl, Trevor; Shirani, Asghar; Minto, Robert E.; Zhang, Chunyu; Cahoon, Edgar B.; Chapman, Kent Dean et al.
Object Type:
Article
System:
The UNT Digital Library
Maxwell-Wagner-Sillars Dynamics and Enhanced Radio-Frequency Elastomechanical Susceptibility in PNIPAm Hydrogel-KF-doped Barium Titanate Nanoparticle Composites
Article describes study investigating Maxwell-Wagner-Sillars (MWS) dynamics and electromagnetic radio-frequency (RF) actuation of the volumetric phase change in a hybrid polymer composite consisting of hydrogel suspended with high-k nanoparticles.
Date:
December 19, 2019
Creator:
Walker, Ezekiel; Akishige, Yukikuni; Cai, Tong; Roberts, James A.; Shepherd, Nigel; Wu, Shijie et al.
Object Type:
Article
System:
The UNT Digital Library
Bioactive glass coatings on metallic implants for biomedical applications
Article provides a detailed overview of the benefits and issues of metal alloys when used as biomedical implants and how they are improved by bioactive glass-based coatings for biomedical applications.
Date:
October 5, 2019
Creator:
Oliver, Joy-anne N.; Su, Yingchao; Lu, Xiaonan; Kuo, Po Hsuen; Du, Jincheng & Zhu, Donghui
Object Type:
Article
System:
The UNT Digital Library
Biofunctionalization of metallic implants by calcium phosphate coatings
Article provides a brief summary of state-of-art of surface biofunctionalization on implantable metals by CaP coatings.
Date:
May 20, 2019
Creator:
Su, Yingchao; Cockerill, Irsalan; Zheng, Yufeng; Tang, Liping; Qin, Yi‐Xian & Zhu, Donghui
Object Type:
Article
System:
The UNT Digital Library
Effect of solution condition on hydroxyapatite formation in evaluating bioactivity of B2O3 containing 45S5 bioactive glasses
Article describes study investigating the effects of testing solutions and conditions on hydroxyapatite (HAp) formation as a means of in vitro bioactivity evaluation of B2O3 containing 45S5 bioactive glasses.
Date:
June 5, 2019
Creator:
Lu, Xiaonan; Kolzow, Jessica; Chen, Roberto R. & Du, Jincheng
Object Type:
Article
System:
The UNT Digital Library
On the evolving nature of c/a ratio in a hexagonal close-packed epsilon martensite phase in transformative high entropy alloys
Article describes a study in which c/a ratio and transformation volume change of h.c.p. epsilon martensite phase in transformative high entropy alloys (HEAs) were quantified as functions of alloy chemistry, friction stir processing and tensile deformation.
Date:
September 12, 2019
Creator:
Sinha, Subhasis; Nene, Saurabh S.; Frank, Michael; Liu, Kaimiao; Agrawal, Priyanka & Mishra, Rajiv
Object Type:
Article
System:
The UNT Digital Library
Sculpted grain boundaries in soft crystals
Article describes study in which "soft heteroepitaxy” is used to exert precise control over the lattice orientation of three-dimensional liquid crystalline soft crystals, thereby granting the ability to sculpt the grain boundaries between them.
Date:
November 29, 2019
Creator:
Li, Xaio; Martínez-González, José A.; Guzmán, Orlando; Ma, Xuedan; Park, Kangho; Zhou, Chun et al.
Object Type:
Article
System:
The UNT Digital Library
Corrosion of Al0.1CoCrFeNi High Entropy Alloy in a Molten Eutectic Salt
Article describes study which investigates the hot corrosion behavior of Al0.1CoCrFeNi high entropy alloy (HEA) and Ni-base Alloy 718.
Date:
July 17, 2019
Creator:
Jalbuena, A.A.; Ury, Nicholas; Bae, Jaewan; Faraj, Christopher; Hanan, Kailey; Kasnakjian, Shahan et al.
Object Type:
Article
System:
The UNT Digital Library
Thermo-mechanical response of single-phase face-centered-cubic AlxCoCrFeNi high-entropy alloy microcrystals
Article describes the response of [100]-oriented single-crystal face-centered-cubic Al0.1CoCrFeNi and Al0.3CoCrFeNi high-entropy alloy (HEA) microcrystals tested from 293 to 573 K by means of in situ micro-compression.
Date:
March 13, 2018
Creator:
Jiao, Quan; Sim, Gi-Dong; Komarasamy, Mageshwari; Mishra, Rajiv; Liaw, Peter K. & El-Awady, Jaafar A.
Object Type:
Article
System:
The UNT Digital Library
Crystallographically degenerate B2 precipitation in a plastically deformed fcc-based complex concentrated alloy
Article describes the development of bcc-ordered B2 and fcc phases manifested in three different orientation relationships (ORs) in the same microstructure: Kurdjumov–Sachs, Nishiyama–Wasserman and Pitsch.
Date:
January 22, 2018
Creator:
Choudhuri, Deep; Shukla, Shivakant; Green, Whitley; Gwalani, Bharat; Ageh, Victor; Banerjee, Rajarshi et al.
Object Type:
Article
System:
The UNT Digital Library
Hierarchical features infused heterogeneous grain structure for extraordinary strength-ductility synergy
Article describes experiment in which a synergistic balance of strength and ductility was achieved in a prototypical fcc-based Al0.3CoCrFeNi complex concentrated alloy by incorporating hierarchical microstructural features into heterogeneous grain structure.
Date:
October 27, 2018
Creator:
Shukla, Shivakant; Choudhuri, Deep; Wang, Tianhao; Liu, Kaimiao; Robert Wheeler; Williams, Sarah et al.
Object Type:
Article
System:
The UNT Digital Library
Physical and Mechanical Properties of Polymer Composites with High Content of Wastes Including Boron
Article describes study examining the physical and mechanical properties of polymer composite with wastes that incorporate boron.
Date:
December 4, 2015
Creator:
Uygunoglua, Tayfun; Gunes, Ibrahim & Brostow, Witold, 1934-
Object Type:
Article
System:
The UNT Digital Library
Self-Assembly Techniques for Nanofabrication
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
Object Type:
Article
System:
The UNT Digital Library
Bulk Nanostructured Metals and Alloys: Processing, Structure, and Thermal Stability
Introduction to a special issue of the Journal of Nanomaterials focusing on bulk nanostructured alloys and metals.
Date:
November 21, 2012
Creator:
Bahmanpour, Hamed; Kajbafvala, Amir; Maneshian, Mohammad H.; Zargar, Hamid Reza & Youssef, Khaled
Object Type:
Article
System:
The UNT Digital Library