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1981
Bioceramic micro-fillers reinforce antibiofilm and remineralization properties of clear aligner attachment materials
Published 2024-01-01“…Plaque biofilms were grown on the bonded enamel using a standardized protocol and the biofilm-killing effect was assessed by confocal laser scanning microscopy and scanning electron microscopy. Vickers microhardness was measured to evaluate the remineralization effect of the attachments containing bioceramic fillers after acid challenge. …”
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1982
Effect of cooling modes after austenitization on stabilities of microstructure and hardness of P92 steel aged at 650℃
Published 2019-01-01“…Compared with the AC samples, the total volume fraction of the precipitations/Vickers hardness of the SC sample is higher/lower and the volume fraction of the Laves/M<sub>23</sub>C<sub>6</sub> phase is remarkably higher/lower. …”
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1983
Microstructure and Performance of Al-Coating on AZ31 Prepared by Pack-Cementation with Different Heating Methods
Published 2022-05-01“…Phases, microstructure, composition, and performance were characterized by X-ray diffraction technique (XRD), secondary electron imaging (SEI), backscattered electron imaging (BSEI), and energy dispersive spectroscopy (EDS), the Vickers hardness test and potentiodynamic polarisation test, respectively. …”
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1984
Effect of Microstructure on Thermophysical Properties of Heat-Treated Duplex Steel
Published 2021-10-01“…Light microscope examinations (LM), scanning electron microscopy (SEM), Vickers micro-hardness measurements and thermophysical studies using a laser flash apparatus (LFA), differential scanning calorimetry (DSC) and push-rod dilatometry (DIL) were performed to reveal the microstructure and changes in thermophysical properties including thermal diffusivity, thermal conductivity, thermal expansion and specific heat. …”
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1985
BULK-FİLL KOMPOZİTLERDE KALINLIĞIN ARTIŞININ MİKROSERTLİK ÜZERİNE ETKİSİ
Published 2020-08-01“…Örnekler 24 saat 37°C’de %100 nemli ortamda bekletildi. Vickers sertlik ölçümleri 5 saniye 100 gr kuvvet uygulanarak yapıldı. …”
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1986
Real-Time Temperature Measurement Using Infrared Thermography Camera and Effects on Tensile Strength and Microhardness of Hot Wire Plasma Arc Welding
Published 2020-08-01“…Finally, the appropriate hot wire parameters are 1.5 m/min for wire feed rate and 40A for wire current, which will give the workpiece cooling rate of 800–500 °C as 13.42 °C/s, tensile strength of 610.95 MPa, and the average Vickers microhardness of 195 HV.…”
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Article -
1987
Morphological: Optical, and Mechanical Characterizations of Non-Activated and Activated Nanocomposites of SG and MWCNTs
Published 2021-10-01“…Nanosizer analysis showed that at 0.25 wt%, the distribution of MWCNTs within the silica gel was optimal. Vickers hardness measurements showed that the hardness increased with the increasing weight percent of MWCNTs within the composite matrix, while annealing enhanced the mechanical properties of the composites. …”
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1988
Effects of Al-5Ti-0.62C-1.07La intermediate alloy on the microstructure and mechanical properties of A356 aluminum alloy
Published 2020-01-01“…The ultimate tensile strength (UTS), elongation (El) together with Vickers hardness (HV) are 183.5 MPa, 8.2% and 62.3, which is increased by 30.3%, 95.2% and 38.1%, respectively. …”
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Article -
1989
Tribo-Mechanical Properties of HVOF Deposited Fe3Al Coatings Reinforced with TiB2 Particles for Wear-Resistant Applications
Published 2016-02-01“…Coatings made from unreinforced Fe3Al exhibited a relatively high wear rate. The Vickers hardness, elastic modulus and wear resistance of the coatings increased with increasing TiB2 content in the Fe3Al matrix. …”
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Article -
1990
Research on Parameters of Wire-Filling Laser Welding and Quenching Process for Joints Microstructure and Mechanical Property of BR1500HS Steel
Published 2021-06-01“…A universal material test machine, optical microscope, Vickers hardness tester, scanning electron microscope, and electron backscatter diffraction (EBSD) were used to characterize. …”
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Article -
1991
Processing and Microstructure of As-Cast Ti-45Al-2W-xC Alloys
Published 2022-07-01“…The increase in the content of C leads to an increase in Vickers hardness and elastic modulus in the alloys containing 1.96 at.% C.…”
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1992
Physical and Structural Characterization of Monocrystalline Cu-13.7% Al-4.2% Ni Alloy Submitted to Thermo-Cyclical Treatments under Applied Loads
Published 2020-02-01“…X-ray diffraction analysis, optical microscopy, differential calorimetry, and Vickers microhardness were involved in the alloy’s characterization. …”
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Article -
1993
Tunable rejuvenation behavior of a metallic glass by residual stress modulation
Published 2023-09-01“…It is found that the structure evolution based on the changes in the relaxation enthalpy and diffraction peak position shows inconsistencies with each other. Vickers hardness mapping reveals that residual stresses may impart and store in the extremely deformed metallic glass sample, which can be verified from the change of hardness and that can well explain such inconsistencies. …”
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Article -
1994
Effect of Two-Stage Homogenization Heat Treatment on Microstructure and Mechanical Properties of AA2060 Alloy
Published 2020-12-01“…The microstructure evolution of AA2060 Al alloy containing Li during two-stage homogenization treatment was investigated by optical microscopy (OM), scanning electron microscopy (SEM) equipped with energy dispersive X-ray spectroscopy (EDS), differential scanning calorimeter (DSC), transmission electron microscopy (TEM), mechanical properties and Vickers micro-hardness test methods. The results demonstrate that severe precipitation of θ(Al<sub>2</sub>Cu) and S(Al<sub>2</sub>CuMg) phase existed in the as-cast alloy, especially in the center position. …”
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Article -
1995
Fabrication and Mechanical Properties of SiCw(p)/SiC-Si Composites by Liquid Si Infiltration using Pyrolysed Rice Husks and SiC Powders as Precursors
Published 2014-03-01“…Dense silicon carbide (SiC) matrix composites with SiC whiskers and particles as reinforcement were prepared by infiltrating molten Si at 1550 °C into porous preforms composed of pyrolysed rice husks (RHs) and extra added SiC powder in different ratios. The Vickers hardness of the composites showed an increase from 18.6 to 21.3 GPa when the amount of SiC added in the preforms was 20% (w/w), and then decreased to 17.3 GPa with the increase of SiC added in the preforms up to 80% (w/w). …”
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Article -
1996
Effect of Solution Heat Treatment on the Microstructure and Microhardness of 7050 Aluminum Alloy
Published 2023-10-01“…The effects of the solution parameters on the alloy’s microhardness were analyzed using a digital Vickers microhardness tester. According to the ASTM E112-13 standard, The Anelli grain growth models were established to illustrate the grain size evolution during solution heat treatment, and a modified Anelli grain growth model was established. …”
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Article -
1997
Preparation and properties of Ti(C,N)-based cermets with graphene nanosheet addition by spark plasma sintering
Published 2023-05-01“…The results show that the sample with 0.6 wt% GNSs fabricated at 1450 °C, 8 min, and 35 MPa has a denser microstructure and better mechanical properties. The cermet has a Vickers hardness of HV 2415.40 and fracture toughness of 10.6 MPa·m1/2. …”
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1998
Efeito do desafio ácido nas propriedades superficiais das camadas externa e interna de dentes acrílicos reforçados
Published 2017-10-01“…Metodologia Molares (SR Postaris e Trilux) seccionados transversalmente foram avaliados inicialmente quanto à dureza Vickers e rugosidade. Esses ensaios foram repetidos após metade das amostras de cada tipo de dente (n=10) ser imersa em água destilada (controle) e outra metade em vinagre durante 15 min/dia por 28 dias. …”
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Article -
1999
Microstructure and mechanical properties of SiCp/Al composite fabricated by concurrent wire-powder feeding laser deposition
Published 2023-01-01“…Due to the inhomogeneous distribution of SiC and Al4C3, the Vickers hardness of the fabricated composites fluctuated violently, ranging from 85 HV to 120 HV. …”
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Article -
2000
Bulk Fill Composites Have Similar Performance to Conventional Dental Composites
Published 2020-07-01“…Eleven parameters were examined: flexural strength (FS), flexural modulus (FM), degree of conversion, depth of cure, polymerisation shrinkage (PS), filler particle morphology, filler mass fraction, Vickers hardness, surface roughness following simulated toothbrush abrasion, monomer elution, and cytotoxic reaction of human gingival fibroblasts, osteoblasts, and cancer cells. …”
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