Results 61 to 70 of about 23,616 (256)

Evaluation of Enamel Surface Morphology and Microhardness after the Application of Different Protective Agents [PDF]

, 2018
The aim of this in vitro study was to compare the effect of different protective agents on the surface microhardness and morphology on enamel eroded by a cola drink. Sixty sound anterior teeth were randomly divided into five groups.
Buyuk, Suleyman Kutalmış, DERELİOĞLU, Sera, Sukuroglu, Ebru Emine, Sera Derelioglu, Simsek, Huseyin, Huseyin Simsek, Buyuk, Suleyman Kutalmis, Suleyman Kutalmış Buyuk, Ebru Emine Sukuroglu   +8 more
core   +1 more source

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

Advanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak, Olha Zvirko, Rostyslav Leshchak, Hryhoriy Nykyforchyn   +3 more
wiley   +1 more source

Surface Roughness Effect on Microhardness Measurements

Tribology in Industry
Micro-Vickers hardness measurements are essential for evaluating micro-scale material hardness, providing insights into surface properties and material strength. However, many factors can influence the precision of hardness measurements. This study examines the influence of surface roughness on the results of micro-Vickers hardness measurements.
Raimonds Sirants, Janis Lungevics
openaire   +2 more sources

Influência do tempo de uso de um gel clareador à base de peróxido de carbamida a 10% na microdureza superficial do esmalte: um estudo in situ [PDF]

, 2002
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em OdontologiaCom o objetivo de avaliar a influência de dois regimes clareadores na microdureza superficial do esmalte, foi realizado ...
Araujo Junior, Edson Medeiros de
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Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying

Advanced Engineering Materials, EarlyView.
An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara, Vincent Rat, Quentin Dubreuil, Patrice Valorge, Simon Goutier, Alain Denoirjean, Olivier Messe, Céline Ruelle, Jean‐Philippe Poli   +8 more
wiley   +1 more source

LASER ADJUSTING MICROHARDNESS OF THE TITANIUM ALLOYS SURFACE LAYER [PDF]

, 2020
The modes of laser surface treatment of VT9 and VT18u titanium alloys were investigated. The microhardness of the surface layers of the samples tested by the Berkovich and Vickers pyramids was calculated.
Симонов, Ю. В., Simonov, Yu. V.
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Microhardness of bulk-fill composite materials

Acta Clinica Croatica, 2016
The aim of the study was to determine microhardness of high- and low-viscosity bulk-fill composite resins and compare it with conventional composite materials. Four materials of high-viscosity were tested, including three bulk-fills: QuiXfi l (QF), x-tra
Katarina Kelić, Sanja Matić, Danijela Marović, Eva Klarić, Zrinka Tarle   +4 more
doaj   +1 more source

Microstructure, Thermal Transport, and Dry‐Sliding Tribology of Powder‐Metallurgy Al7075 Composites Reinforced With Sol–Gel‐Derived ZnO–rGO Hybrid Nanoparticles

Advanced Engineering Materials, EarlyView.
Sol–gel‐derived ZnO–rGO hybrid nanoparticles enable Al7075 powder‐metallurgy composites to achieve concurrent gains in hardness and thermal conductivity while markedly lowering friction and wear. The hybrid architecture couples ZnO‐based load support with rGO‐assisted lamellar sliding and heat spreading, revealing a promising route toward lightweight ...
Bunyamin Aksakal, Cevher Kursat Macit, Merve Ayık, Hakan Tutumlu   +3 more
wiley   +1 more source

Effect of Acidic Environment on the Surface Microhardness of BiodentineTM

World Journal of Dentistry, 2013
ABSTRACTAimTo compare the effects of various levels of acidic pH on surface microhardness of Biodentine.TMMaterials and methodsBiodentine was mixed and packed into stainless steel molds (diameter = 5 mm and height = 1.5 mm). Four groups of 10 specimens each were formed and exposed to pH: 7.4, 6.4, 5.4 and 4.4 respectively for 4 days.
Gaurav Poplai, Sameer K Jadhav
openaire   +1 more source

Investigation into coatings produced from nanoparticle blended feedstock for rotating equipment repair applications [PDF]

, 2011
Coating of carbon steel with conventional and nano particle blended feedstock material is considered in relation to repair applications of rotating equipment.
Al-Askandarani, Albara
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