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2261
The Influence of Various Photoinitiators on the Properties of Commercial Dental Composites
Published 2021-11-01“…The microhardness, hardness by Vicker’s method, diametral tensile strength, flexural strength and contraction stress with photoelastic analysis were tested. …”
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2262
Abrasion Resistance of S235, S355, C45, AISI 304 and Hardox 500 Steels with Usage of Garnet, Corundum and Carborundum Abrasives
Published 2019-12-01“…Moreover, hardness was measured with Vickers hardness tester. Additionally, the size and morphology of abrasive materials were characterized. …”
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2263
Oxygen Aspects in the High-Pressure and High-Temperature Sintering of Semiconductor Kesterite Cu<sub>2</sub>ZnSnS<sub>4</sub> Nanopowders Prepared by a Mechanochemically-Assisted S...
Published 2023-02-01“…Both the nanopowders and pellets were extensively characterized, employing such determinations as powder XRD, UV-Vis/FT-IR/Raman spectroscopies, solid-state <sup>65</sup>Cu/<sup>119</sup>Sn NMR, TGA/DTA/MS, directly analyzed oxygen (O) and hydrogen (H) contents, BET specific surface area, helium density, and Vicker’s hardness (when applicable). The major findings are the unexpectedly high oxygen contents in the starting nanopowders, which are further revealed in the sintered pellets as crystalline SnO<sub>2</sub>. …”
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2264
Influence of the Chromium Content on the Characteristics of the Matrix, the Tantalum Carbides Population, and the Hardness of Cast Co(Cr)-0.4C-6Ta Alloys
Published 2023-02-01“…Their microstructures were investigated in their as-cast state as well as in an aged state resulting from a 4-day stage at 1400 K. Vickers indentation was also carried out to study how hardness may evolve with Cr content. …”
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2265
The Effect of Bulk Depth and Irradiation Time on the Surface Hardness and Degree of Cure of Bulk-Fill Composites
Published 2016-09-01“…After 24 hours of storage in distilled water, the microhardness of the top and bottom of the samples was measured using a Future Tech (Japan- Model FM 700) Vickers hardness testing machine. Data were analyzed statistically using the one and multi way ANOVAand Tukey’s test (p = 0.050). …”
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2266
Effect of Sn Addition on the Microstructure and Age-Hardening Response of a Zn-4Cu Alloy
Published 2023-11-01“…At room temperature, the Vickers microhardness measurements were used to assess the age-hardening response of alloys. …”
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2267
Microstructure and Properties of Copper–Graphite Composites Fabricated by Spark Plasma Sintering Based on Two-Step Mixing
Published 2020-11-01“…Compared with other conventional methods, the composite prepared by two-step mixing and SPS achieved higher relative density, electrical conductivity, and micro-hardness, which, respectively, reduced from 98.78%, 89.7% IACS (International annealed copper standard), and 64 HV (Vickers-hardness) to 96.56%, 81.3% IACS, and 55 HV when the graphite content increased from 1.0 wt.% to 2.5 wt.%. …”
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2268
Trueness, Flexural Strength, and Surface Properties of Various Three-Dimensional (3D) Printed Interim Restorative Materials after Accelerated Aging
Published 2023-07-01“…Three-point bending, surface roughness, and Vickers microhardness tests were performed. Two-way ANOVA and Fisher’s multiple tests were used for statistical analyses. …”
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2269
The Hardness Evolution of Cast and the High-Cycle Fatigue Life Change of Wrought Ni-Base Superalloys after Additional Heat Treatment
Published 2021-12-01“…The detected changes were verified by the Vickers hardness test. The IN718 superalloy was chosen as a representative of the wrought superalloy. …”
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2270
Corrosion Resistance of Nickel-Aluminum Sinters Produced by High-Pressure HPHT/SPS Method
Published 2023-02-01“…It has been shown that the obtained sinters were characterized by a compact, homogeneous and pore-free structure, though at the same time differentiated and multi-phase, while the densities of individual alloys reached a level close to the theoretical values. The Vickers hardness of the alloys was 334, 399 and 486 HV10, respectively.…”
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2271
Microstructure and Mechanical Properties of TiN–TiB<sub>2</sub>–hBN Composites Fabricated by Reactive Hot Pressing Using TiN–B Mixture
Published 2021-11-01“…The relative density, Vickers hardness, bending strength, and fracture toughness were 99%, 11 GPa, 521 MPa, and 4.22 MPa·m<sup>1/2</sup>, respectively. …”
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2272
A Study of the Essential Parameters of Friction-Stir Spot Welding That Affect the D/W Ratio of SSM6061 Aluminum Alloy
Published 2022-12-01“…The fracture surface behavior on the ring zone also affects the characteristics of ductile fracture. During Vickers hardness analysis, the hardness profiles are in the shape of a W; the maximum hardness was 71.97 HV, resulting from the rotation speed of 3500 rpm and the dwell time of 28 s, where the hardness of the base metal was at 67.18 HV. …”
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2273
Effect of Different Mouthwashes on the Surface Microhardness and Color Stability of Dental Nanohybrid Resin Composite
Published 2023-02-01“…Surface microhardness was evaluated using Vickers microhardness device. Color stability after and before immersion in the different mouthwashes was evaluated using extra-oral spectrophotometer; the values of color change (ΔE<sub>00</sub>) were subsequently calculated. …”
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2274
Advances in Laser Additive Manufacturing of Cobalt–Chromium Alloy Multi-Layer Mesoscopic Analytical Modelling with Experimental Correlations: From Micro-Dendrite Grains to Bulk Obj...
Published 2022-02-01“…The average dendrite grain size was estimated using a scanning electron microscope (SEM) combined with “Image J” software. The Vickers hardness test was performed to correlate the average dendrite grain size and operating conditions. …”
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2275
3-D Surface Morphological Characterization of CAD/CAM Milled Dental Zirconia: An In Vitro Study of the Effect of Post-Fabrication Processes
Published 2022-07-01“…All the groups were subjected to Fretting wear tests, 3-D surface roughness measurements, and Vickers’s Micro hardness tests. Investigation of the phase transformation using XRD, and surface feature examination using SEM were also carried out. …”
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2276
Unraveling the Antibiofilm Activity of a New Nanogold Resin for Dentures and Epithesis
Published 2022-07-01“…Microhardness was evaluated using the Vickers hardness test. Monomicrobial biofilm formation (<i>Streptococcus mitis</i>, <i>Candida albicans</i>, <i>Staphylococcus aureus</i> and <i>Escherichia coli</i>) was measured by colony-forming units (CFUs) and MTT test and visualized by SEM. …”
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2277
Effect of adding CPP-ACP into a daily-use toothpaste on remineralization of enamel white spot lesions
Published 2024-03-01“…Remineralization was assessed through the Vickers microhardness test at various depths (20, 50, 120 and 200 µm). …”
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2278
First-principles design of high strength refractory high-entropy alloys
Published 2024-03-01“…In general, the elastic stability, elastic properties, ideal shear strength, Vickers hardness, and yield strength increase, whereas Zener anisotropy decreases with increasing VEC. …”
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2279
Effect of multi-pass deformation on microstructure and flow behavior of Ti-6Al-4V alloy fabricated through hot isostatic pressing
Published 2021-01-01“…X-ray diffraction (XRD) patterns indicated that the diffraction peak of α lattice plane of (0002) increased first and then declined with the strain under the strain rate of 0.1 s ^−1 . Besides, the Vickers hardness increased with the strain at the same strain rate and was not sensitive to strain rate. …”
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2280
Partially Diluted Zones in Dissimilar Cladding with AWS ER NiCrMo-3 Alloy Deposited by the MIG Process on ASTM A36 Steel: Analysis and Characterization by EBSD
Published 2024-04-01“…The samples were prepared for analysis using techniques such as EDS, FEG-SEM, EBSD, and Vickers microhardness testing. The results demonstrate the effectiveness of the EBSD technique in characterizing dissimilar metal cladding. …”
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