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333 results for “Titanium”
Data for "Using transmission Kikuchi diffraction to characterise alpha variants in an alpha+beta titanium alloy"
<p>This zipped folder contains data for "Using transmission Kikuchi diffraction to characterise alpha variants in an alpha+beta titanium alloy" published in Journal of Microscopy.</p> <p>The zipped folder contains:<br> - Phase map, where green regions are indexed as alpha Ti and red regions are indexed as beta Ti.<br> - IPF orientation maps along the X, Y and Z directions (with both phases combined).<br> - IPF colour keys for the alpha and beta phases.<br> - FSD micrographs at lower and higher magnification (not resized: one pixel per acquisition data point).<br> - TKD_Trial.ctf - text file describing orientations according to Bruker software conventions [1], as-exported from Bruker Esprit 2.1.<br> - TKD_BOR_MTEXplotter.m, an MTEX plotting tool which will plot orientations for this dataset (using MTEX version 4.3.2 installed on MATLAB 9.2 (R2017a)).</p> <p>[1] T.B. Britton, J. Jiang, Y. Guo, A. Vilalta-Clemente, D. Wallis, L.N. Hansen, A. Winkelmann, A.J. Wilkinson, Tutorial: Crystal orientations and EBSD — Or which way is up?, Materials Characterization, Volume 117, July 2016, Pages 113-126, ISSN 1044-5803, http://dx.doi.org/10.1016/j.matchar.2016.04.008.<br> (http://www.sciencedirect.com/science/article/pii/S1044580316300924)</p>
Experimental raw data sets associated with certified reference material BAM-P116 (titanium dioxide) for comparison of nitrogen and argon sorption, available in the universal adsorption information format (AIF)
<p>These data sets serve as models for calculating the specific surface area (BET method) using gas sorption in accordance with ISO 9277.<br>The present measurements were carried out with nitrogen at 77 Kelvin and argon at 87 Kelvin.<br>It is recommended to use the following requirements for the molecular cross-sectional area:<br>Nitrogen: 0.1620 nm²<br>Argon: 0.1420 nm²</p> <p>Expected specific surface area for nitrogen (BET): 305 to 345 m²/g<br>Expected specific surface area for argon (BET): 300 to 310 m²/g</p> <p>Titanium dioxides certified with nitrogen sorption and additionally measured with argon for research purposes were used as sample material.<br>The resulting data sets are intended to serve as comparative data for own measurements and show the differences in sorption behaviour and evaluations between nitrogen and argon.<br>These data are stored in the universal AIF format (adsorption information format), which allows flexible use of the data.</p>
Data from: Ultra-uniform, strong and ductile 3D printed titanium alloy through bifunctional alloy design
<p>Coarse columnar grains and heterogeneously distributed phases commonly form in metallic alloys produced by three-dimensional (3D) printing and are often considered undesirable because they can impart non-uniform and inferior mechanical properties. We demonstrate a design strategy to unlock consistent and enhanced properties directly from 3D printing. Using Ti−5Al−5Mo−5V−3Cr as a model alloy, we show that adding molybdenum (Mo) nanoparticles promotes grain refinement during solidification and suppresses the formation of phase heterogeneities during solid-state thermal cycling. The microstructural change due to the bifunctional additive results in uniform mechanical properties and simultaneous enhancement of both strength and ductility. We demonstrate how this alloy can be modified by a single component to address unfavourable microstructures, providing a pathway to achieve desirable mechanical characteristics directly from 3D printing.</p>
Dataset for publication "Sol-gel derived silicate-phosphate glass SiO2–P2O5–CaO–TiO2: the effect of titanium isopropoxide on porosity and thermomechanical stability"
<p>In this work, sol-gel silica-phosphate glasses (30 mol.% P<sub>2</sub>O<sub>5</sub>) with defined porosity from 2.5 to 7.5 mol.% TiO<sub>2</sub> modifications were synthesized. Thee dimensional stability with respect to the thermal stability of porous silica-phosphate glasses modified by titanium dioxide (TiO<sub>2</sub>) through titanium isopropoxide (TTIP) precursor was studied.</p> <p>The data of thermomechanical and thermogravimetric analysis, X-ray diffraction, SEM -EDX, mercury intrusion porosimetry, N2 physisorption, micro-computed tomography, ultra-small-angle X-ray scattering are published.</p>
Dataset: The effect of a keyhole defect on strain localisation in an additive manufactured titanium alloy
<p><strong>This is the dataset used in the following publication: </strong></p> <div> <div> <div> <p>S. Cao, R. Thomas, A.D. Smith, P. Zhang, L. Meng, H. Liu, J. Guo, J. Donoghue, D. Lunt, The effect of a keyhole defect on strain localisation in an additive manufactured titanium alloy, Journal of Materials Research and Technology, https://doi.org/10.1016/j.jmrt.2024.11.237</p> </div> </div> </div> <p><strong>Contained in this dataset are:</strong></p> <p>A Jupyter notebook which uses the open-source DefDAP Python package (https://github.com/MechMicroMan/DefDAP) to open enclosed HRDIC and EBSD data for two regions in an SLM Ti64 sample, one around a keyhole defect and one ~1mm away in the bulk.</p> <p>Please use the 'master' version of DefDAP: <a href="https://github.com/MechMicroMan/DefDAP/tree/51074e158b0131c69358ddf7eee319e41cf582ca">https://github.com/MechMicroMan/DefDAP/</a></p> <p><strong>Publication abstract:</strong></p> <p>The influence of a keyhole defect on local deformation behaviour in additive manufactured Ti-6Al-4V was investigated by comparing it to a representative bulk region without a defect. High resolution digital image correlation (HRDIC) was used to measure the differences in strain localisation at the microstructural length-scale. A nanoscale speckle pattern was used to allow small changes in strain to be detected and resolved within a single individual lamella and at pre-existing crack locations around the defect. Strain localisation was observed around the defect and formed well below the macroscopic yield stress. In contrast, minimal deformation was found in the bulk at this stress level. Following further deformation into the plastic regime, the strain localisation around the keyhole became more heterogenous with a distinct strain field. A large amount of strain localisation and <c+a> slip was observed either side of the defect normal to the loading direction compared to relatively little in the regions close to the defect in line with the loading direction. This HRDIC observation was consistent with finite element analysis of the expected strain fields around the defect both below and above the yield point. Furthermore, micro-cracks were observed in αp/αp and αp/βt interfaces in both regions with the more pronounced strain fields around the defect leading to an increased number of long micro-cracks than in the bulk. The formation mechanisms of micro-cracks have been discussed, emphasising the role of localised strain caused by the defect.</p> <p> </p>
Dataset to "Surface Properties of the Hydrogen–Titanium System"
<p>Data of " Surface Properties of the Hydrogen−Titanium System" published in the Journal of Physical Chemistry C, 2021 DOI: 10.1021/acs.jpcc.1c08635</p>
Dataset for paper entitled 'Microstructure transition gradients in titanium dissimilar alloy (Ti-5Al-5V-5Mo-3Cr/Ti-6Al-4V) tailored wire-arc additively manufactured components'
<p>Dataset for paper entitled 'Microstructure transition gradients in titanium dissimilar alloy (Ti-5Al-5V-5Mo-3Cr/Ti-6Al-4V) tailored wire-arc additively manufactured components'. doi: <a href="https://doi.org/10.1016/j.matchar.2021.111577">https://doi.org/10.1016/j.matchar.2021.111577</a></p>
Data set for publication: Interfacial Deposition of Titanium Dioxide at the Polarized Liquid– Liquid Interface
<p>The attached files are the raw data used to write the manuscript (.txt; .csv; .jpg): Interfacial Deposition of Titanium Dioxide at the Polarized Liquid– Liquid Interface</p>
Effects of titanium dioxide nanoparticles on porcine pre-pubertal sertoli cells
<p>This dataset contains data from an <em>in vitro</em> experiment described in the paper: "Mancuso F, Arato I, Di Michele A, Antognelli C, Angelini L, Bellucci C, Lilli C, Boncompagni S, Fusella A, Bartolini D, Russo C, Moretti M, Nocchetti M, Gambelunghe A, Muzi G, Baroni T, Giovagnoli S, Luca G. Effects of Titanium Dioxide Nanoparticles on Porcine Prepubertal Sertoli Cells: An "In Vitro" Study. Front Endocrinol (Lausanne). 2022 Jan 3;12:751915. doi: 10.3389/fendo.2021.751915. PMID: 35046890; PMCID: PMC87623342".</p> <p>The data describes the X-ray diffraction (XRD), scanning electron microscopy (SEM) analysis to confirm the correct synthesis of titanium dioxide<sub> </sub>nanoparticles (TiO<sub>2</sub> NPs), and the transmission electron microscopy (TEM) analysis to investigate the morphological/ultrastructural effects on porcine pre-pubertal Sertoli cells (SCs), after an acute (24 hours) and chronic (from 1 up to 3 weeks) exposure, at both sub-toxic (5 µg/ml) and toxic (100 µg/ml) doses of TiO<sub>2</sub> NPs.</p> <p>The diffractogram confirmed the correct synthesis of TiO2 NPs in accordance with the International Centre for Diffraction Data Sample (JCPDS 00-001-0562) and the asterisk (*) represents the peaks of TiO<sub> </sub>NPs in anatase form; SEM analysis showed that the mean size distribution of TiO<sub>2</sub> NPs in dry form was 20 ± 5 nm and confirmed that TiO<sub>2</sub> NPs tend to form aggregates of submicrometric dimensions;</p> <p>Representative TEM images of unexposed SCs showed elongated oval or spindle-shaped SCs containing quite large nuclei (N) and abundant mitochondria. SCs did not show substantial and/or severe ultrastructural alterations in SCs treated with 5 µg/ml TiO2 NPs for 1 and 2 weeks, in all the other exposure conditions (5 µg/ml for 3 weeks and 100 µg/ml for 1, 2, and 3 weeks), SCs showed several ultrastructural changes with a high percentage of severely damaged SCs, presenting different features of cell stress such as deeply invaginated and shrunk nuclei, disorder/ marginalization of chromatin components, swollen very fragmented, or almost completely missing endoplasmic reticulum membranes. In addition, mitochondrial morphology was severely affected and mitochondria number dramatically decreased with the presence of several large vacuoles, probably as a result of apoptotic mitochondria and/or enlarged endoplasmic reticulum and/or increased frequency of lipid droplets.</p> <p>The main results of the experiments are that long time constant exposure of SCs at both TiO<sub>2</sub> NPs concentrations inevitably led to an altered ultrastructure.</p>
Multimodal data set for the investigation of the early stage of plasticity in a polycrystalline titanium sample
<p>This dataset is the result of several experiments to study the early stage of plasticity in a polycrystalline sample of a commercially pure alpha phase grade 2 titanium (CP-Ti family). The study aimed to achieve three critical goals: first, the acquisition of a 3D representation of the microstructure; second, the conduction of in situ measurements capturing grain-scale plasticity dynamics during a controlled tensile test; and third, a rigorous comparison of these experimental observations against the predictions derived from a microstructure-sensitive crystal plasticity simulation. This simulation was conducted on a digital twin of the titanium sample, aiming to assess the predictive accuracy of the model at the local scale. The data set was assembled from the different sources using the Pymicro package. </p>
Data bundle for "The role of beta-titanium ligaments in the deformation of dual phase titanium alloys"
<p>Data bundle for "The role of ¥â-titanium ligaments in the deformation of dual phase titanium alloys"</p> <p>Tea-Sung Jun1,2, Xavier Maeder3, Ayan Bhowmik1,a, Gaylord Guillonneau3,4, Johann Michler3, Finn Giuliani1, T. Ben Britton1*<br> 1 Department of Materials, Royal School of Mines, Imperial College London, London SW7 2AZ, UK<br> 2 Department of Mechanical Engineering, Incheon National University, Incheon 22012, Republic of Korea<br> 3 EMPA, Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Mechanics of Materials and Nanostructures, Feuerwerkerstrasse 39, CH-3602 Thun, Switzerland<br> 4 Universite de Lyon, Ecole Centrale de Lyon, LTDS UMR CNRS 5513, 36 Avenue Guy de Collongue, 69134 Ecully Cedex, France<br> a now at Rolls-Royce@NTU Corporate Lab, Nanyang Technological University, Singapore</p> <p>For more information please contact: b.britton@imperial.ac.uk (Ben Britton)</p> <p>---</p> <p>This data bundle contains 1 file and 5 subfolders:</p> <p>Figures - all the images that were included in the paper<br> Subfolder for Figure 4 - raw data for load vs. displacement<br> Subfolder for Figure 7(A) - raw data for engineering stress vs. engineering strain <br> Subfolder for Figure 7(B) - cross court data and images of beta vertical micropillar <br> Subfolder for Figure 7(C) - cross court data and images of beta inclined micropillar<br> Subfolder for Figure 10 - raw data for stress relaxation vs. time</p>
Research data supporting "Investigating the accumulation and translocation of titanium dioxide nanoparticles with different surface modifications in static and dynamic human placental transfer models"
<p>Research data supporting the publication: Aengenheister, L. et al., 2019, "Investigating the accumulation and translocation of titanium dioxide nanoparticles with different surface modifications in static and dynamic human placental transfer models", Eur J Pharm Biopharm. https://doi.org/10.1016/j.ejpb.2019.07.018</p>
Experimental raw data sets associated with certified reference material BAM-P115 (titanium dioxide) for comparison of nitrogen and argon sorption, available in the universal adsorption information format (AIF)
<p>These data sets serve as models for calculating the specific surface area (BET method) using gas sorption in accordance with ISO 9277.<br>The present measurements were carried out with nitrogen at 77 Kelvin and argon at 87 Kelvin.<br>It is recommended to use the following requirements for the molecular cross-sectional area:<br>Nitrogen: 0.1620 nm²<br>Argon: 0.1420 nm²</p> <p>Expected specific surface area for nitrogen (BET): 140 to 154 m²/g<br>Expected specific surface area for argon (BET): 129 to 135 m²/g</p> <p>Titanium dioxides certified with nitrogen sorption and additionally measured with argon for research purposes were used as sample material.<br>The resulting data sets are intended to serve as comparative data for own measurements and show the differences in sorption behaviour and evaluations between nitrogen and argon.<br>These data are stored in the universal AIF format (adsorption information format), which allows flexible use of the data.</p>
Experimental raw data sets associated with certified reference material BAM-P114 (titanium dioxide) for comparison of nitrogen and argon sorption, available in the universal adsorption information format (AIF)
<p>These data sets serve as models for calculating the specific surface area (BET method) using gas sorption in accordance with ISO 9277.<br>The present measurements were carried out with nitrogen at 77 Kelvin and argon at 87 Kelvin.<br>It is recommended to use the following requirements for the molecular cross-sectional area:<br>Nitrogen: 0.1620 nm²<br>Argon: 0.1420 nm²</p> <p>Expected specific surface area for nitrogen (BET): 24 to 25 m²/g<br>Expected specific surface area for argon (BET): 20 m²/g</p> <p>Titanium dioxides certified with nitrogen sorption and additionally measured with argon for research purposes were used as sample material.<br>The resulting data sets are intended to serve as comparative data for own measurements and show the differences in sorption behaviour and evaluations between nitrogen and argon.<br>These data are stored in the universal AIF format (adsorption information format), which allows flexible use of the data.</p>
Exploring Dinuclear Titanium Complexes in Titanium(III) Catalysis
<p>NMR, MS, CV, and kinetic data files. Updated content and numbering following the revision of the manuscript.</p>
Proteomics reveals multiple effects of titanium dioxide and silver nanoparticles in the metabolism of turbot, Scophthalmus maximus
<p>Titanium dioxide (TiO2) and silver (Ag) NPs are among the most used engineered inorganic nanoparticles (NPs);<br> however, their potential effects to marine demersal fish species, are not fully understood. Therefore, this study<br> aimed to assess the proteomic alterations induced by sub-lethal concentrations citrate-coated 25 nm (“P25”) TiO2<br> or polyvinylpyrrolidone (PVP) coated 15 nm Ag NPs to turbot, Scophthalmus maximus. Juvenile fish were exposed<br> to the NPs through daily feeding for 14 days. The tested concentrations were 0, 0.75 or 1.5 mg of each NPs per kg of fish per day. The determination of NPs, Titanium and Ag levels (sp-ICP-MS/ICP-MS) and histological alterations<br> (Transmission Electron Microscopy) supported proteomic analysis performed in the liver and kidney.<br> Proteomic sample preparation procedure (SP3) was followed by LC-MS/MS. Label-free MS quantification<br> methods were employed to assess differences in protein expression. Functional analysis was performed using<br> STRING web-tool. KEGG Gene Ontology suggested terms were discussed and potential biomarkers of exposure<br> were proposed. Overall, data shows that liver accumulated more elements than kidney, presented more histological<br> alterations (lipid droplets counts and size) and proteomic alterations. The Differentially Expressed Proteins<br> (DEPs) were higher in Ag NPs trial. The functional analysis revealed that both NPs caused enrichment of<br> proteins related to generic processes (metabolic pathways). Ag NPs also affected protein synthesis and nucleic<br> acid transcription, among other processes. Proteins related to thyroid hormone transport (Serpina7) and calcium<br> ion binding (FAT2) were suggested as biomarkers of TiO2 NPs in liver. For Ag NPs, in kidney (and at a lower<br> degree in liver) proteins related with metabolic activity, metabolism of exogenous substances and oxidative stress<br> (e.g.: NADH dehydrogenase and Cytochrome P450) were suggested as potential biomarkers. Data suggests<br> adverse effects in turbot after medium/long-term exposures and the need for additional studies to validate<br> specific biological applications of these NPs.</p>
Titanium dioxide nanoparticles assessment in seaweeds by single particle inductively coupled plasma – Mass spectrometry
<p>n this study, a first attempt for isolating and determining (characterising) background levels of <a href="https://www.sciencedirect.com/topics/chemistry/titanium-dioxide-nanoparticle">titanium dioxide nanoparticles</a> (TiO<sub>2</sub> NPs) in seaweed has been developed by using single particle inductively coupled plasma – mass spectrometry (SP-ICP-MS). Seaweeds were processed using an optimised <a href="https://www.sciencedirect.com/topics/chemistry/ultrasound-extraction">ultrasound assisted extraction</a> (UAE) procedure based on <a href="https://www.sciencedirect.com/topics/chemistry/tetramethylammonium-hydroxide">tetramethylammonium hydroxide</a> (TMAH) before dilution and SP-ICP-MS analysis. The effect of the TMAH percentage in the extracting solution, as well as the volume of extracting solution and <a href="https://www.sciencedirect.com/topics/chemistry/sonication">sonication</a> (extraction) time, has been fully assessed. Additional experiments also showed that TiO<sub>2</sub> NPs were quantitatively released from the seaweed matrix in one UAE step since the analysis of residues gave TiO<sub>2</sub> NPs concentrations lower than the limit of quantification (LOQ) of the method. Validation of the method with 50 and 100 nm TiO<sub>2</sub> NPs (10 μg L<sup>−1</sup> as Ti) showed good analytical recovery (115% and 112% for 50 and 100 nm TiO<sub>2</sub> NPs, respectively), and good reproducibility (2% for size and 16% for number of TiO<sub>2</sub> NPs). Experiments regarding TiO<sub>2</sub> NPs stability showed that the extracted NPs are stable since there were not changes on the number of TiO<sub>2</sub> NPs and TiO<sub>2</sub> NPs size distributions when exposing TiO<sub>2</sub> NPs standards to the optimised extractive conditions.</p>
Double-barreled enterostomy with delayed compression anastomosis by shape memory titanium nickelide device in children
<p>The problem of children with enterostomy is still current, increase number of early and late complications of stoma formation and closure.The aim of the study is to improve the outcomes of surgical treatment of newborns and infants with double-barreled enterostomies using a shape memory titanium nickelide device and creating a delayed compression anastomosis.Materials and methods. The clinical part of the study included children aged 0 to 6 months with congenital or acquired intestinal pathology with the formation of various types of enterostomy. The study groups included children with Mikulicz double-barreled enterostomies and Bishop-Koop T-shaped anastomoses. In the experimental part of the study, compression and manual anastomoses with enterostomies were compared in laboratory models (rabbits).Expected results of the study. Compression anastomosis in a double-barreled enterostomy in newborns and infants is a safe and effective alternative to manual T-anastomosis, allows to reduce pathological loss of chyme and eliminate suture failure, close the stoma without resection in delayed period.</p>
Comparing Efficacy of a Stainless-steel Rotary File with Two Nickel-titanium Systems on Periapical Lesion Healing
ClinicalTrials.gov study NCT06752837. IPD Sharing: NO. Countries: 1. Publications: 6.
Lumbar Fusion With Nexxt Spine 3D-Printed Titanium Interbody Cages
ClinicalTrials.gov study NCT03647501. IPD Sharing: NO. Countries: 1. Publications: 18.
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