-
101
Evaluation of Flexural Strength and Microhardness of Different Type Glass Ionomer Cements
Published 2024-04-01“…A three-point bending test was performed using a universal testing device, and the maximum force values required to fracture the samples were determined in Newton by the device after the fracture. For the Vickers microhardness test measurements were made from different areas of the upper surfaces of each sample and the average of five measurements was calculated in MPa.Results: When comparing the flexural strength values, EQUIA Forte Fil group observed the highest flexural strength value, while Riva LC HV group had lowest flexural strength value. …”
Get full text
Article -
102
Efficacy of a Novel Bioactive Glass-Polymer Composite for Enamel Remineralization following Erosive Challenge
Published 2022-01-01“…The samples were randomly divided into 3 groups of 15 and underwent Vickers microhardness test. X-ray diffraction (XRD) and field emission scanning electron microscopy/energy dispersive X-ray spectroscopy (FESEM/EDS) were performed. …”
Get full text
Article -
103
Effect of ECAP process on deformability, microstructure and conductivity of CuCoNi alloy
Published 2023-01-01“…The microstructure evolution was studied by microscopic observations and electron back-scattered diffraction (EBSD) in a scanning electron microscope (SEM). The Vickers method was used to test the microhardness of the samples after various variants of the ECAP process. …”
Get full text
Article -
104
Effects of Sliding Speed on Wear Behavior of High-Velocity Oxygen Fuel-Sprayed FeCrMoNiCuBSiC Metallic Glass Coatings
Published 2024-12-01“…The coating had a dense structure (the porosity was 1.47 ± 0.32%) and high Vickers microhardness (848 ± 22 HV<sub>0.3</sub>). …”
Get full text
Article -
105
EXPERIMENTAL STUDY THE MECHANICAL PROPERTIES OF GMAW WELDING RESULTS ON S355J2+N MATERIAL WITH POST WELD HEAT TREATMENT (PWHT)
Published 2025-01-01“…The research method uses experiments with PWHT temperatures at 450 °C, 750 °C, and non-PWHT to find out the mechanical properties of materials, use the tensile test and micro-Vickers hardness test. Meanwhile, to determine the microstructure formed is used micro examination. …”
Get full text
Article -
106
Postprocessing Study for the Controllable Structures of Ceramic Green Parts Realized by a Flexible Binder Jetting Printing (BJP) Solution
Published 2020-01-01“…In comparison, high-density specimens performing poor infiltration obtained limited density increment after final sintering, but better mechanical properties and surface strengthening were realized, exhibiting final densities, flexural strength, comprehensive strength, surface roughness Ra, and Vickers hardness of 70.1%, 63.22 MPa, 450.18 MPa, 9.73 μm, and 4.58 GPa, respectively. …”
Get full text
Article -
107
Development of Newly Formulated Nanoalumina-/Alkasite-Based Restorative Material
Published 2021-01-01“…Surface microhardness and roughness were evaluated using the Vickers microhardness test and surface profilometer, respectively. …”
Get full text
Article -
108
Synergistic Sintering of Lignite Fly Ash and Steelmaking Residues towards Sustainable Compacted Ceramics
Published 2017-01-01“…Moreover, the shrinkage, apparent density, water absorption, and Vickers microhardness (HV) were investigated at different sintering temperatures and raw material compositions. …”
Get full text
Article -
109
Evaluating the Effect of Active Charcoal-Containing Toothpaste on Color Change, Microhardness, and Surface Roughness of Tooth Enamel and Resin Composite Restorative Materials
Published 2023-01-01“…Before and after brushing cycles, color variables (ΔL, Δa, Δb), total color change (ΔE), plus Vickers microhardness were evaluated. Two samples of each group were prepared for surface roughness assessment via atomic force microscope. …”
Get full text
Article -
110
In-situ synthesized WC reinforcement phase on microstructural evolution, toughness and tribological properties of Mo2FeB2-based composite coatings fabricated by laser cladding
Published 2025-01-01“…Microhardness was measured by a Vickers microhardness tester and analyzed using an optical microscope. …”
Get full text
Article -
111
The effect of high temperature deformation on the austenite reversion transformation and η-Ni3Ti precipitation behavior in a Ti–Mo maraging steel
Published 2025-01-01“…The above metallurgical phenomenon was further verified by Vickers hardness measurement. For example, under the fixed ageing temperature of 520 °C, the distributions of HV0.1 values were 480–680 and 370–660, respectively, for Ti–Mo PHSSs subjected to hot deformation strains of 35 % and 70 %, respectively. …”
Get full text
Article -
112
Characteristics of Nanophase WC and WC-3 wt% (Ni, Co, and Fe) Alloys Using a Rapid Sintering Process for the Application of Friction Stir Processing Tools
Published 2015-01-01“…Even though no phase changes were observed after the ball milling process the phases of W2C and WC1-x appeared in all sintered samples after sintering. The Vickers hardness and fracture toughness of the WC, WC-3 wt% Ni, WC-3 wt% Co, and WC-3 wt% Fe samples ranged from 2,240 kg mm2 to 2,730 kg mm2 and from 6.3 MPa·m1/2 to 9.1 MPa·m1/2, respectively.…”
Get full text
Article -
113
Evaluation the effect of sesame oil on root dentin microhardness after application of chloroform and orange oil as gutta percha solvents (an in- vitro study).
Published 2022-12-01“…The root halves from each group were subject to Vickers hardness test to measure micro hardness, then sesame oil were applied by bonding brush for 15 mint on each root dentin surface from all groups finally all roots subject to vicker hardness test to obtain the final micro hardness values. …”
Get full text
Article -
114
Sulla stima di macro, micro e nano-durezza di materiali metallici mediante analisi elasto-plastiche agli elementi finiti
Published 2011-12-01“…Il lavoro sintetizzato nel presente articolo si pone come obiettivo primario quello di investigare lapossibilita di stimare, mediante un approccio elasto-plastico agli elementi finiti, la durezza dei materiali metalliciconvenzionali, e questo sia a livello macroscopico, che a livello microscopico, che, infine, a livello nanoscopico.Per verificare validita e accuratezza della metodologia FEM sviluppata, sono state condotte una serie di analisisperimentali su tre materiali metallici aventi caratteristiche metallurgiche estremamente diverse: una legadfalluminio (Al 7075-T6), un acciaio a basso tenore di carbonio (BS970-En3B) e, infine, un acciaio austenitico(AISI 316L). Lfindentazione Vickers e stata simulata con analisi elasto.plastiche agli elementi finiti considerandocarichi di prova nellfintervallo tra 490 N e 490 ƒÊN e calibrando le simulazioni numeriche mediante curvemonotone tensione.deformazione ottenute da prove di trazione eseguite utilizzando provini sia di dimensioneconvenzionale che aventi larghezza della zona calibrata dellfordine dei 100 ƒÊm.La sistematica comparazione tra risultati sperimentali e simulazioni numeriche ha posto in evidenza comelfaumentare del valore della durezza misurata al diminuire della dimensione dellfimpronta possa essere imputataal ruolo giocato dalla reale morfologia del materiale, ruolo che diventa predominante sulla plasticitaconvenzionale quando le dimensioni della superficie indentata diventano comparabili con le dimensioni mediedella grana cristallina delle leghe esaminate. …”
Get full text
Article -
115
In Vitro Effect of Mouthrinses on the Microhardness of Three Different Nanohybrid Composite Resins
Published 2023-01-01“…The present study aimed to compare Vickers microhardness (VHN) in vitro of nanohybrid composite resins (NCRs) immersed in mouthrinses. …”
Get full text
Article -
116
Antibiofilm effect of Nano chitosan and calcium hydroxide intracanal medications and their effects on the microhardness and chemical structure of radicular dentine
Published 2025-01-01“…For the effect on microhardness, 56 specimens were subjected to Vicker’s microhardness test before and after 1 week, and 4 weeks of medication application. …”
Get full text
Article -
117
Synthesis, Mechanical, and Tribological Performance Analysis of Stir-Casted AA7079: ZrO2 + Si3N4 Hybrid Composites by Taguchi Route
Published 2021-01-01“…The prepared stir-casted materials are tested by wear analysis and microhardness analysis, through Pin-on-Disc wear tester and Vickers hardness tester, respectively. Wear parameters are optimized, the minimum wear rate is evaluated, and also the wear worn-out surfaces are examined through SEM analysis.…”
Get full text
Article -
118
Effect of the Electrolyte Temperature and the Current Density on a Layer Microhardness Generated by the Anodic Aluminium Oxidation
Published 2015-01-01“…The paper investigates the influence of the chemical composition and temperature of electrolyte, the oxidation time, voltage, and the current density on Vickers microhardness of aluminium oxide layers, at the same time. …”
Get full text
Article -
119
Effect of two light activated in-office bleaching agents on microhardness of different esthetic restorative materials
Published 2018-08-01“…Baseline and after bleaching microhardness measurements were taken with a Vickers hardness tester that was used with a 300 g for the porcelain and 100 g for the composite and ormocer specimens, the dwell time was 30 s for all groups. …”
Get full text
Article -
120
Effect of three different intracanal medications on canal wall cleanliness and radicular dentin microhardness
Published 2023-12-01“…The other half of each specimen was used to measure dentin microhardness using the Vickers Microhardness Tester. Statistical analysis was done. …”
Get full text
Article