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1381
PENGARUH POST-TREATMENT PLASMA CVD LAPISAN DIAMOND-LIKE CARBON TERHADAP SIFAT KEKERASAN PERMUKAAN BAJA AISI 410
Published 2017-04-01“…Surface hardness test is used by Vickers microhardness tester. Cross-section microstructure and chemical compositions are examined by scanning electron microscopy coupled with energy dispersive spectroscopy. …”
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1382
Obtention, Characterization and Deposition of Hydroxyapatite Obtained from Scales of the Amazonian Fish Pirarucu (Arapaima gigas) Using the High Velocity Suspension Plasma Spray (H...
Published 2023-07-01“…For the coating, the mechanical nanoindentation test showed mean Vickers microhardness (VH) values of 93.25 VH for the hydroxyapatite and of 196.57 HV for the substrate. …”
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1383
An Enamel Based Biopolymer Prosthesis for Dental Treatment with the Proper Bond Strength and Hardness and Biosafety
Published 2022-01-01“…An experimental biopolymer, hybridized enamel, was synthesized and utilized as a dental prosthesis to compare hardness and tensile bond strength (TBS) with those of commercial materials. Vickers hardness (VHN) with a 100 g loading for 15 s at eight indentations on each specimen (<i>n</i> = 20) was measured. …”
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1384
Synthesis and characterisation of ultra-hard and lightweight AlMgB14–xTiB2 composites for wear-resistance and ballistic protection
Published 2015-03-01“…A microhardness of 29.4GPa in hot pressed AlMgB14 and a maximum Vickers hardness of 30.2 GPa in hot pressed samples of AlMgB14 reinforced with 70 wt% of TiB2 particles (d50=4,1µm) was achieved. …”
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1385
The influence of different heat treatment cycles on the properties of the steels HARDOX® 500 and STRENX® 700
Published 2020-06-01“…The effects of these heat cycles were analyzed by optical microscopy and Vickers microhardness techniques. It was concluded that in the normalization treatment, the microhardness reduction of HARDOX® was more significant than that one of STRENX®. …”
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1386
Effect of the manual manipulation of composite resin with latex gloves.
Published 2019-08-01“…Each resin was manually manipulated for 10 seconds and photoactivated for 20 seconds with a light intensity of 1000mW/cm2 using a VALO –Ultradent LED light– cured unit, and then each sample was evaluated on the microhardness Vickers tester Leitz (Wetzlar). The collected data were analyzed using Kruskal –Wallis and Mann – Whitney post-test (p<0.05). …”
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1387
PENGARUH VARIASI REDUKSI KETEBALAN COLD ROLLING SERTA SUHU ANNEALING TERHADAP SIFAT FISIK DAN MEKANIK ALUMINUM ALLOY 6082-T6
Published 2017-11-01“…The thickness was reduced from 3 mm to 2,5 mm, 2 mm, and 1,5 mm. the cold rolled samples ware annealed at various tempers in the range of 275oC, 325C, and 375C for 5 minute. Vickers hardness test were performed to evaluate the mechanical properties of alloy and the microstructure were performed to evaluate the physical properties of alloy. …”
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1388
Evaluation of fatigue crack propagation in surface modification layer by a load-controlled plate bending fatigue tester
Published 2014-02-01“…In this study, the fatigue crack propagation test was conducted on specimens treated by cavitation peening, which is one of the surface modification techniques, and mechanical properties were also evaluated, including residual stress, yield stress and Vickers hardness, so as to reveal the effect of such mechanical properties varied by the peeing on the fatigue crack propagating behavior. …”
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1389
Mechanical Properties of CaO–Al<sub>2</sub>O<sub>3</sub>–SiO<sub>2</sub> Glass-Ceramics Precipitating Hexagonal CaAl<sub>2</sub>Si<sub>2</sub>O<sub>8</sub> Crystals
Published 2021-04-01“…The microcrack toughening mechanism in CAS GC was supported by the nondestructive observation of microcracks around the Vickers indentation using the X-ray microcomputed tomography technique. …”
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1390
Influence of Parameters and Regimes of the Electrodeposition on Hardness of Copper Coatings
Published 2023-03-01“…Morphology and structure of Cu coatings were examined by scanning electron microscope (SEM), atomic force microscope (AFM) and by X-ray diffraction (XRD), while hardness was examined by Vickers microindentation. The coatings of Cu on both Si(111) and brass cathodes belong to “soft film (coating) on hard substrate” composite hardness system, and the Chicot–Lesage (C–L) composite hardness model was applied to estimate a hardness of the Cu coatings. …”
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1391
MITIGATION OF AGRICULTURAL ENERGY REQUIREMENT IN BANGLADESH USING MICROALGAE PRODUCTION
Published 2013-12-01“…Metallographic analysis and Vickers hardness tests were performed. The results obtained from investigating the basic geometries demonstrated a good joining quality that differs from the conventional process of welding or mechanical joining with screws or nails. …”
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1392
A Study on Surface Hardening and Wear Resistance of AISI 52100 Steel by Ultrasonic Nanocrystal Surface Modification and Electrolytic Plasma Surface Modification Technologies
Published 2023-10-01“…The micro-hardness with respect to the depth from the top surface was measured using a Vickers micro-hardness tester. Microstructural observations showed that EPSM treatment led to the formation of residual austenite in the surface layer, while UNSM treatment led to the formation of a surface severe plastic deformation layer on the surface of the samples. …”
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1393
Influence of Factors in the Photopolymerization Process on Dental Composites Microhardness
Published 2022-09-01“…The significance of light intensity, irradiation time, and layer thickness on Vickers microhardness is evaluated by experimental design, analysis of variance, and regression analysis. …”
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1394
Investigation of Microstructure and Mechanical & Electrochemical Behaviors of Martensitic Stainless Steel (MSS) and Alloyed White Cast Iron (WCI) Rolls Fabricated by a Centrifugal...
Published 2020-12-01“…The rolls used in the grinding process must also have higher hardness values, so Vickers hardness measurements are performed on the WCI and MSS alloys. …”
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1395
Study on the Influence of Erbium and Preheating Process on Mechanical Properties of As-Cast 7055 Aluminum Alloy
Published 2023-07-01“…This article used optical microscopy, scanning electron microscopy energy dispersive spectroscopy (SEM-EDS), X-ray diffraction (XRD), micro Vickers hardness, and room temperature stretching methods to study the as-cast 7055-<i>x</i>Er (<i>x</i> = 0 wt.%, 0.2 wt.%, 0.4 wt.%, 0.6 wt.%, 0.8 wt.%) aluminum alloy after being subjected to 460 °C × 3 h homogenization and 410 °C × 1 h solid solution + 150 °C × 12 h aging treatment for the changes in its microstructure and properties. …”
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1396
Manufacturing of AA7075 Aluminum Alloy Composites Reinforced by Nanosized Particles of SiC, TiN, and ZnO by High-Energy Ball Milling and Hot Extrusion
Published 2023-10-01“…Then, the composites were hot extruded and characterized by XRD, SEM, and microhardness Vickers (HV). The milling process reduces the crystallite and particle size to around 30 nm and 10 µm, respectively. …”
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1397
Microstructural Characterization of a Component Manufactured by Hybrid Casting of Two Different Ferrous Alloys
Published 2023-06-01“…The metallurgical bonding between alloys is confirmed by the diffusion of chromium and carbon from HCCI to WCB. Vickers microhardness, EDS and XRD confirmed the presence of M7C3 carbides in the HCCI and at the interface. …”
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1398
Study on micro-structure, hardness and optimization of wear characteristics of Al6061/TiB2/CeO2 hot-rolled MMCs using Taguchi method
Published 2023-07-01“…Hardness of hybrid MMCs was evaluated by using hardness test rig (Vickers). Results revealed that the hardness strength of developed hybrid MMCs increased with increase of the reinforcement content. …”
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1399
Local Microstructure and Texture Development during Friction Stir Spot of 5182 Aluminum Alloy
Published 2023-03-01“…The local microstructure, texture gradient and mechanical properties through the shoulder dimension (10 mm) of upper and lower AA5182 aluminum sheets were investigated using electron backscatter diffraction (EBSD) and Vickers microhardness after friction stir spot welding (FSSW). …”
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1400
De-globalising bank regulation
Published 2014-01-01“…Some proposals (e.g. the Vickers Report and the Fed’s subsidiarisation of US establishments of foreign banks) de facto imply a partial de-globalisation of both banks and their supervision. …”
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