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1861
Mechanical and Biomimetic Characteristics of Bulk-Fill Resin Dental Composites Following Exposure in a Simulated Acidic Oral Environment
Published 2023-01-01“…After 1 week of storage, flexural and surface hardness properties of specimens were determined using a universal testing machine and Vickers hardness tester, respectively. In general, the ‘Coca-Cola’ beverage caused the greatest degradation of flexural strength, flexural modulus, and surface hardness characteristics in all RBCs in contrast to the ‘dry’, ‘distilled water’ controls and ‘Orange Juice’ storage conditions. …”
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1862
Evaluating the effect of natural, industrial juices and beverage on orthodontic bonding composite (in-vitro study)
Published 2023-09-01“…Microhardness measurements at baseline, one day, and one week were performed utilizing the Vickers microhardness testing. Statistical analyses were carried out using repeated measure one way ANOVA test and Bonferroni post-hoc test with a level of significant p< 0.05. …”
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1863
Effect of A Rapid-Cooling Protocol on the Optical and Mechanical Properties of Dental Monolithic Zirconia Containing 3–5 mol% Y<sub>2</sub>O<sub>3</sub>
Published 2020-04-01“…Three-point bending strength, Vickers hardness, and indentation fracture toughness tests were performed. …”
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1864
Fabrication of 3D Printed Ceramic Part Using Photo-Polymerization Process
Published 2023-03-01“…Ultimately, the ceramic parts with a Vickers hardness of 12.2 GPa and a relative density of over 95% were able to be fabricated based on a high-viscosity resin with 25,000 cps.…”
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1865
Evaluation of mechanical properties of Ni/BaTiO3 functionally graded material
Published 2024-01-01“…To estimate the variation of mechanical properties in the FGM thickness, 5 homogenous mixtures (100% BaTiO3, 75% BaTiO3-25% Ni, 50% BaTiO3 - 50% Ni, 25% BaTiO3-75% Ni and 100% Ni) were sintered. The density, the Vickers hardness, the Young's modulus and Poisson ratio were measured. …”
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1866
Hardness and Depth of Cure of Conventional and Bulk-fill Composite Resins in Class II Restorations with Transparent and Metal Matrix Strips
Published 2023-06-01“…All specimens were cured and stored at 37°C for 24 hours. Vickers hardness was measured as a function of DoC at 2mm intervals. …”
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1867
Growth and Characterization of Organic 2-Chloro 5-Nitroaniline Crystal Using the Vertical Bridgman Technique
Published 2023-09-01“…The organic 2-chloro-5-nitroaniline crystal demonstrates that the indentation size effect is observed in the Vickers micro-hardness test, which was also carried out.…”
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1868
Implementation of the Chicot–Lesage Composite Hardness Model in a Determination of Absolute Hardness of Copper Coatings Obtained by the Electrodeposition Processes
Published 2021-11-01“…Morphology and structure of the coatings were analyzed by scanning electron microscope (SEM), atomic force microscope (AFM) and X-ray diffraction (XRD), while coating hardness was examined by Vickers microindentation test applying the Chicot–Lesage (C–L) composite hardness model. …”
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1869
Investigation of microstructural and micro-hardness properties of Ti-15.05Mo alloy for biomedical applications
Published 2023-01-01“…This study presents the analysis of the microstructure and Vickers micro-hardness of β-Ti type Ti-15.05Mo alloy obtained by different cooling rates. …”
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1870
Effects of Al and Mo on Microstructure and Hardness of As-Cast TNM TiAl Alloys
Published 2021-11-01“…The relationship between the Vickers hardness and the lamellar spacing obeyed the Hall–Petch relationship.…”
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1871
The Effect of Exposure to Dried Fruits on the Surface Micro-Hardness of Dental Enamel
Published 2023-05-01“…After surface polishing, the initial micro-hardness was measured by a Vickers hardness-testing machine. The samples were randomly placed into five different solutions including apricot, raisin and date suspension, citric acid (positive control) or sorbitol (negative control), 5 times a day, each time for 5 minutes, and then in artificial saliva for 60 minutes. …”
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1872
Phase Formation and Stabilization Behavior of Ca-PSZ by Post-Heat Treatment
Published 2022-09-01“…These results are related to the increase in tetragonal phase, which has a relatively higher coefficient of thermal expansion than that of the monoclinc phase. According to the Vickers hardness measurement, the hardness of all specimens increased gradually as the concentration of CaO increased, and the hardness of the 5CSZ was improved from 676 to 774 Hv by the post-heat treatment.…”
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1873
Mechanical Properties of Al–Mg–Si Alloys (6xxx Series): A DFT-Based Study
Published 2023-09-01“…This study found that the optimum properties obtained were a density of 2.762 g/cm<sup>3</sup>, a bulk modulus of 83.3 GPa, a shear modulus of 34.4 GPa, a Vickers hardness of 2.79 GPa, a Poisson’s ratio of 0.413, a Pugh’s ratio of 5.42, and a yield strength of 8.38 GPa. …”
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1874
Evaluation of Two Resin Composites Having Different Matrix Compositions
Published 2020-07-01“…The DoC was attributed to the bottom/top ratios of Vickers microhardness numbers. For polymerization shrinkage, each specimen was firstly scanned using micro-computed tomography (µCT) then cured for 20 s, then for 10 s, and then for 10 s, and they were rescanned between each curing time. …”
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1875
Effect of Water Flow on Underwater Wet Welded A36 Steel
Published 2021-04-01“…The best mechanical properties are achieved by welding with the highest flow rate, with a tensile strength of 534.1 MPa, 3.6% elongation, a Vickers microhardness in the HAZ area of 424 HV, and an impact strength of 1.47 J/mm<sup>2</sup>.…”
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1876
Sustainable development on production and characterization of metal matrix composites using stir casting
Published 2023-01-01“…The results indicated that SAEH reinforced with 5 wt% SAC exhibited lower porosity (2.6%) and higher Brinell hardness (71.5 BHN), Vickers hardness (307.1 VHN), tensile strength (217 MPa), and compressive strength (426 MPa) than other composites. …”
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1877
Effect of plasma nitriding on the compressive strength of multi-functional fine protrusions formed by sputter-etching of stainless steels
Published 2016-06-01“…Plasma-nitriding was applied to the protrusions by using nitrogen gas of 0.53 Pa mixed with argon gas of 0.67 Pa at a power of 50 W for 1.8 ks. Micro-Vickers hardness tests on cone-shaped protrusions with diameter of about 20 μm formed on the SUS420J2 steel showed that the compressive strength of protrusion tip of the plasma-nitrided specimen is almost four times larger than that of the as-sputter-etched specimen. …”
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1878
Submerged Dissimilar Friction Stir Welding of AA6061 and AA7075 Aluminum Alloys: Microstructure Characterization and Mechanical Property
Published 2021-10-01“…Optical microscopy and electron backscattered diffraction were employed to characterize the microstructure of the joint. Vickers hardness measurements were conducted on the cross-section of the joint to evaluate the mechanical strengths. …”
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1879
Interfacial investigation of Al/Ni in new generation of composite (Metal-3D lattice metal): Annealing time effect
Published 2023-11-01“…The hardness of Al3Ni and Al3Ni2 phases increased to 503 and 647 Vickers, respectively. The polarization test showed that the corrosion resistance first increased and then decreased during annealing compared to the SPS sample. …”
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1880
POLYMERIZATION EFFICIENCY OF TWO DUAL-CURE CEMENTS THROUGH DENTAL CERAMICS
Published 2015-01-01“…Degree of conversion was evaluated using Vickers Hardness Test and depths of cure of samples were measured. …”
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