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921
Physical Behavior of Nanoporous Anodic Alumina Using Nanoindentation and Microhardness Tests
Published 2007-01-01“…<p>Abstract</p><p>In this paper, the mechanical response and deformation behavior of anodic aluminum oxide (AAO) were investigated using experimental nanoindentation and Vickers hardness tests. The results showed the contact angle for the nanoporous AAO specimen was 105° and the specimen exhibited hydrophobic behavior. …”
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Article -
922
Effect of (Ta &Nb) on Corrosion Behavior of Nitinol Alloys
Published 2016-09-01“…It was found that; the transformation temperatures and phase structures of the samples prepared consist of martensitic and austenitic phases at room temperature. Also, Vickers hardness values increased with increasing of Ta and Nb additions. …”
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Article -
923
Racing with uncertainty: a patent race experiment
Published 2001“…This paper presents an experimental test of the multi-stage patent race model by Harris and Vickers (1987). Tied competitors invested more when nearer the end of the race, but this may have followed from a more general and unexplained pattern of a positive correlation between investment and progress in the race. …”
Working paper -
924
The effect of processing parameters on microstructure and mechanical properties of aluminium 6061 semisolid metal billet
Published 2021“…The porosity content, ultimate tensile st1rength, and Vickers hardness were examined for the feedstock billets after the DTM process. …”
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Thesis -
925
Antifungal activity, mechanical properties, and accuracy of three-dimensionally printed denture base with microencapsulated phytochemicals on varying post-polymerization time
Published 2022-12-01“…Three-point bending and Vickers hardness tests were performed to measure the flexural strengths and hardness of the specimens. …”
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Article -
926
Impact of Morphology and Microstructure on the Mechanical Properties of Ge-As-Pb-Se Glass Ceramics
Published 2020-04-01“…The impact of base glass morphology and post heat-treatment protocol on the mechanical properties (Vickers hardness and Young’s modulus) of a multi-component glass-ceramic was examined. …”
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927
The Influence of Contemporary Denture Base Fabrication Methods on Residual Monomer Content, Flexural Strength and Microhardness
Published 2024-02-01“…Flexural strength was also determined according to the specification ISO No. 20795-1:2013. The Vickers method was used to investigate microhardness. …”
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Article -
928
Effects of Post-Curing Time on the Mechanical and Color Properties of Three-Dimensional Printed Crown and Bridge Materials
Published 2020-11-01“…We used various 3D printed crown and bridge materials in this study, and evaluated the changes in their properties according to post-curing time by evaluating the flexural strength, Weibull modulus, Vickers hardness, color change, degree of conversion, and biocompatibility. …”
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Article -
929
Preparation and Characterization of High-Strength Glass-Ceramics via Ion-Exchange Method
Published 2021-09-01“…The results show that LAS GCs with TiO<sub>2</sub>/(TiO<sub>2</sub> + ZrO<sub>2</sub>) = 1/2 exhibit the best flexural strength (109 MPa) and Vickers hardness (525 Kg/mm<sup>2</sup>). The as-prepared glass was nucleated at 560 °C for 1 h and crystallized at 720 °C for 0.5 h. …”
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Article -
930
Effect of in-office bleaching agent on the surface roughness and microhardness of nanofilled and nanohybrid composite resins [version 2; peer review: 2 approved]
Published 2023-05-01“…Surface roughness and microhardness of the prepared samples prior to and after the bleaching regimen were measured using a profilometer and Vickers hardness tester, respectively. Results: A significant reduction (p <0.001) in the surface hardness of Filtek Z350 XT from 27.67 ± 2.10 to 17.83 ± 1.36 Vickers hardness number (VHN) was observed after the bleaching whereas no significant reduction in surface hardness was observed with Ceram.x® SphereTEC™ one. …”
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Article -
931
Study of directionally solidified eutectic Al<sub>2</sub>O<sub>3</sub>-ZrO<sub>2</sub>(3%Y<sub>2</sub>O<sub>3</sub>) doped with TiO<sub>2</sub>
Published 2007-06-01“…Also, the toughness is determined by Vickers indentation method. When slow growth rates (10 mm/h) are used, interpenetratred and homogeneous microstructure is obtained, independently of the TiO2 doping. …”
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Article -
932
Effects of Sb and/or Sn concentrations on the SbSn formation in a ternary melt-spun Pb–Sb–Sn alloy
Published 2022-12-01“…X-ray diffractions (XRD), Dynamic resonance technique, Vickers hardness tester, and High Precision Micro-ohmmeter were used to investigate the melt-spun Pb–Sb–Sn alloys. …”
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Article -
933
Mechanical Properties of 3D-Printed Occlusal Splint Materials
Published 2023-08-01“…The three-point flexure test was used for the determination of flexural strength values, while Vickers hardness was measured to determine surface hardness. …”
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Article -
934
Investigation of the surface roughness and hardness of different denture teeth materials: An In vitro study
Published 2024-01-01“…Hardness was determined using a Vickers hardness tester, and results were expressed as Vickers hardness numbers (VHN). …”
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Article -
935
Preparation of Cu-Cr-Zr Alloy by Laser Powder Bed Fusion: Parameter Optimization, Microstructure, Mechanical and Thermal Properties for Microelectronic Applications
Published 2021-09-01“…The results demonstrate that the surface morphology of microstructure is affected by laser energy density, the α-Cu is the main phase of the LPBF sample and the virgin powder, the size of Cr spherical precipitates in some areas is about 1 μm, and the tensile fracture mode is a mixed ductile–brittle mode. Furthermore, the Vickers hardness of the LPBF Cu–Cr–Zr sample is 70.7 HV to 106.1 HV, which is higher than that of LPBF Cu and a wrought C11000 Cu, and the difference in Vickers hardness of different planes reflects the anisotropy. …”
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Article -
936
Spark Plasma Sintering of Fine-Grained WC-Co Composites
Published 2023-12-01“…We measured the hardness using a Vickers hardness tester. We took hardness measurements along the diameter of the sintered samples. …”
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Article -
937
Investigating the effect of Zr content on electrochemical and tribological properties of newly developed near β-type Ti-alloys (Ti–25Nb-xZr) for biomedical applications
Published 2024-06-01“…The mechanical characteristics of the produced alloys, including Vickers hardness and Young's modulus, were measured. …”
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Article -
938
Effect of strain rate on mechanical properties of TC17 and TC4 alloy forgings
Published 2023-06-01“…In this work, the effects of different strain rates on the mechanical properties of forged TC17 and TC4 alloys were examined by tensile testing machine, and Vickers hardness tester, OM, SEM, and EBSD were used to study the Vickers hardness, deformation microstructures and fracture morphologies. …”
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Article -
939
Development of Dental Poly(methyl methacrylate)-Based Resin for Stereolithography Additive Manufacturing
Published 2021-12-01“…Based on these characteristics, the optimal composition was determined to be 30% PMMA, 56% EGDMA, 14% MMA with flexural strength (84.6 ± 7.1 MPa), Vickers hardness (21.6 ± 1.9), and shear bond strength (10.5 ± 1.8 MPa) which were comparable to or higher than those of commercial resins. …”
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Article -
940
Effects of low-power laser hardening on the mechanical and metallurgical properties of biocompatible SAE 420 steel
Published 2024-05-01“…In comparison, the base material micro-hardness is 208 Vickers Pyramid Number as the predictive equation generated for finding micro-hardness value for the above three laser hardening process parameters. …”
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