-
101
Avaliação da rugosidade superficial no fresamento frontal do ferro fundido nodular austemperado (ADI)
Published 2024-01-01“…A avaliação da dureza Vickers das amostras usinadas complementaram o estudo. …”
Get full text
Article -
102
In Vitro Investigation of Novel Peptide Hydrogels for Enamel Remineralization
Published 2024-12-01“…This study investigates the microstructure of dental enamel following demineralization and re-mineralization processes, using DIAGNOdent scores and images obtained via scanning electron microscopy (SEM), atomic force microscopy (AFM), and microhardness (Vickers). The research evaluates the effects of two experimental hydrogels, Anti-Amelogenin isoform X (ABT260, S1) and Anti-Kallikrein L1 (K3014, S2), applied to demineralized enamel surfaces over periods of 14 and 21 days. …”
Get full text
Article -
103
Effects of Simulation-Guided Microwave Presintering Process on the Preparation and Final Properties of Pure Ceramic Rings: Lower Sintering Temperature and Higher Mechanical Propert...
Published 2020-01-01“…Comparing the final sintering temperatures and mechanical properties of the final ceramic-sintered rings obtained by microwave presintering to those obtained by conventional presintering, microwave presintered sample has a final temperature of 1400°C, which is 100°C lower than that of conventional presintering, which is 1500°C; its average grain size of 0.18 μm is dramatically smaller than that of conventional presintering, which is 0.24 μm, with about 80% of the grain sizes present in the range of 0.1-0.2 μm and a relative density of about 99%, as opposed to conventional presintering’s 70% falling between 0.2 and 0.3 μm and relative density of about 98%; the Vickers hardness and fracture toughness for microwave presintered sample reach 1550 kg·f·mm−2 and 9.05 MPa m1/2, respectively, which are both greater than 1431 kg·f·mm−2 and 8.86 MPa m1/2 in the conventional samples.…”
Get full text
Article -
104
Temperature influence on the repair of a hardfacing coating using laser metal deposition and assessment of the repair innocuity
Published 2025-06-01“…Local characterization using non-destructive testing, Vickers hardness measurements and microstructural examinations by scanning electron microscopy (SEM) show an excellent metallurgical quality of the repair and its interface with the original part. …”
Get full text
Article -
105
Üniversal rezin kompozitlerin mikrosertliği, yüzey pürüzlülüğü ve renk değişimi üzerine farklı ağız gargaralarının etkileri
Published 2025-01-01“…Başlangıç mikrosertlik ölçümleri Vickers sertlik ölçüm cihazı, yüzey pürüzlülük ölçümleri profilometre cihazı ve renk ölçümleri ise spektrofotometre cihazı kullanılarak yapıldı. …”
Get full text
Article -
106
Friction Properties of Alumina–Silicon Carbide–Silver–Graphene Nanoplatelet Self-Lubricating Composite Prepared by SPS Technique
Published 2024-12-01“…The hardness reaches 27 GPa, as tested by the Vickers microhardness method, which reflects an increase of 11% compared to Ag-GNPs-free Al<sub>2</sub>O<sub>3</sub>-SiC. …”
Get full text
Article -
107
Microstructure and tribological behavior of W-Mo alloy coating on powder metallurgy gears based on double glow plasma surface alloying technology
Published 2019-01-01“…The hardness was examined by Vickers hardness test and nanoindentation test. The tribological behavior of powder metallurgy gears before and after plasma surface alloying was evaluated on a ball-on-disc reciprocating sliding tribometer under dry sliding condition at room temperature. …”
Get full text
Article -
108
Influence of increasing chromium content on additively manufactured tool steels: Microstructural and mechanical evolution before and after heat treatment
Published 2025-01-01“…Mechanical properties, evaluated through Vickers hardness and tensile testing, revealed a decrease in hardness and tensile strength accompanied by a change of the deformation behavior from brittle to ductile with increasing Cr content and consequently increased δ-ferrite content. …”
Get full text
Article -
109
A Comparison between Two Different Remineralizing Agents against White Spot Lesions: An In Vitro Study
Published 2021-01-01“…The surface microhardness (SMH) was measured using the Vickers microhardness testing machine at baseline, after demineralization, and after treatment. …”
Get full text
Article -
110
The antibiofilm effect and mechanism of silver nanowire-modified glass ionomer cement against multi-species oral biofilm
Published 2025-01-01“…Compressive strength, surface roughness, hardness, and wettability were measured by a universal testing machine, an atomic force microscope (AFM), a Vickers microhardness tester, and a contact angle meter, respectively. …”
Get full text
Article -
111
Response characterization on the microstructure, and mechanical and corrosion behavior of clad rebars of different weld materials
Published 2025-07-01“…The microstructure of the welded joints of four different types of welding metals was observed using a metallographic microscope, the hardness distribution of the welded joints was measured using a Vickers hardness tester, and the corrosion resistance and corrosion behavior of four types of welding materials were investigated through electrochemical corrosion experiments using a scanning electron microscope (SEM). …”
Get full text
Article -
112
Effectiveness of Nanohydroxyapatite on Demineralization of Enamel and Cementum Surrounding Margin of Yttria-Stabilized Zirconia Polycrystalline Ceramic Restoration
Published 2021-01-01“…The enamel and cementum area of 4 × 4 mm2 neighboring zirconia was applied with either NHA or CP, while one group was left no treatment (NT) before demineralized with carbopal. Vickers hardness (VHN) of enamel and cementum was evaluated before material application (BM), after material application (AM), and after demineralization (AD). …”
Get full text
Article -
113
Characterization of two iron bullets from the royal ammunition factory of Eugi (Spain)
Published 2018-01-01“…The microhardness analyses carried out revealed Vickers hardness differences along the diameter. This variation could be explained by the differences in cooling rate along the diameter. …”
Get full text
Article -
114
Evaluation of the impact of acidic medications and fluoride-containing mouthwash on the enamel surface using quantitative light-induced fluorescence, microhardness, and scanning el...
Published 2025-01-01“…Forty-eight samples were tested for surface demineralization via quantitative laser fluorescence (QLF), and the other forty-eight samples were tested for enamel microhardness via a Vickers hardness tester. The samples were divided into six groups: (i) Group DW_NF- samples immersed in distilled water with no fluoride exposure; (ii) Group DW_F- samples immersed in distilled water with intermittent fluoride exposure; (iii) Group VC_NF- samples treated with vitamin C only; (iv) Group VC_F- samples treated with vitamin C and fluoride mouthwash; (v) Group SB_NF- samples exposed to salbutamol inhaler with no fluoride exposure; (vi) Group SB_NF- samples exposed to salbutamol inhaler followed by fluoride exposure. …”
Get full text
Article -
115
Technological dental sealants: in vitro evaluation of material properties and antibiofilm potential
Published 2025-02-01“…Abstract Background Due to the launch of new self-etching and self-adhesive sealing materials combined with the release of bioactive ions in the dental market, this in vitro study aimed to compare physical values of surface roughness (RS), vickers microhardness (VM), compositional energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM), microbiological tests (inhibition halo-HI and surface microbial adhesion-MAS) and mechanical microshear bond strength (MBS). …”
Get full text
Article -
116
-
117
-
118
Abrasive resistance and microhardness of self-adhesive (Surefil one) and conventional bulk fill composites: An- in vitro study.
Published 2023-12-01“…For the microhardness test, thirty cylindrical specimens (6 mm× 8 mm) (n= 10) were fabricated to assess the microhardness, top and bottom surfaces were tested using Vicker Hardness test. The results were analyized with a one-way ANOVA test, the post-hoc comparisons were examined in Tukey test. …”
Get full text
Article -
119
-
120