Results 51 to 60 of about 143,288 (296)

Effect of Propolis on Root Dentine Microhardness When Used as an Intracanal Medicament: An In Vitro Study

Journal of Functional Biomaterials, 2023
Application of intracanal medicaments may affect the physical properties of root dentine. Calcium hydroxide (CH), a gold standard intracanal medicament, has proven to decrease root dentine microhardness.
Meshal Muhammad Naeem, Huma Sarwar, Aliza Nisar, Shahbaz Ahmed, Juzer Shabbir, Zohaib Khurshid, Paulo J. Palma   +6 more
doaj   +1 more source

Effect of pulsed magnetic field pre-treatment of AISI 52100 steel on the coefficient of sliding friction and wear in pin-on-disk tests [PDF]

, 2014
Disc specimens manufactured from commercial bearing rollers (AISI 52100 steel, 62–63 HRC) in initial state and after pre-treatment by pulsed magnetic field (PMF) with a magnetic field strength of 1–7 MA/m were tested with sunflower oil using pin-on-disk ...
A A Lebedev, A A Lebedev, A Belyakov, A L Lu, A Villuendas, B E Klamecki, D K Pal, G M Ludtka, G V Stepanov, H Conrad, H Ohtsuka, J Frankel, L Luo, M A Krivoglaz, M Halilovič, M K Mohamed, M K Muju, M Mansori El, M Yang, O Bataineh, S V Vonsovskii, S Wu, T Kakeshita, V V Levitin, Y V Baranov   +24 more
core   +2 more sources

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

Advanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold, Dylan Jennings, Robert Vaßen   +2 more
wiley   +1 more source

Effect of incorporating bioactive glass filler in resin infiltrant on the microhardness of demineralized enamel [PDF]

Journal of Dental Materials and Techniques
Objective: This study aimed to evaluate the effect of incorporating different concentrations of 45S5 bioactive glass (BAG) as a filler into a resin infiltrant on the microhardness of demineralized enamel.Methods: Forty bovine enamel samples were ...
Hila Hajizadeh, Hossein Bagheri, Aboubakr Azizzadeh, Maryam Valizadeh, Kimia Jafarpour   +4 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

Mechanical Behavior and Failure Analysis of Prosthetic Retaining Screws after Long‐Term Use In Vivo. Part 2: Metallurgical and Microhardness Analysis [PDF]

, 2007
Purpose: This study involved testing and analyzing multiple retrieved prosthetic retaining screws after long‐term use in vivo to: (1) detect manufacturing defects that could affect in‐service behavior; (2) characterize the microstructure and alloy ...
Al Jabbari, Youssef S., Fournelle, Raymond, Iacopino, Anthony, Toth, Jeffrey M., Ziebert, Gerald J.   +4 more
core   +1 more source

Hardening mechanism of commercially pure Mg processed by high pressure torsion at room temperature

, 2014
Coarse-grained Mg in the as-cast condition and fine-grained Mg in the extruded condition were processed by high pressure torsion (HPT) at room temperature for up to 16 turns. Microstructure observation and texture analysis indicate that to fulfil the Von
Chen, Y., Gan, W.M., Gao, N., Qiao, X.G., Starink, M.J., Wu, K., Zhao, Y.W., Zheng, M.Y.   +7 more
core   +1 more source

Microstructure Evolution of a VMnFeCoNi High‐Entropy Alloy After Synthesis, Swaging, and Annealing

Advanced Engineering Materials, EarlyView.
The synthesis and processing (rotary swaging and annealing) of the novel VMnFeCoNi alloy is investigated, alongside the estimation of the grain size effect on hardness. Analysis of a wide grain size range of recrystallized microstructures (12–210 µm) reveals a low annealing twin density.
Aditya Srinivasan Tirunilai, Zeki Ayrildi, Buse Şen, Maik Rajkowski, Mathias Redondo Garcia, Markus Stricker, Guillaume Laplanche   +6 more
wiley   +1 more source

Effect of silver diamine fluoride combined with photodynamic therapy on primary enamel microhardness

Photodiagnosis and Photodynamic Therapy
Objectives: This study aimed to assess the effect of silver diamine fluoride (SDF) combined with photodynamic therapy (PDT) on primary enamel microhardness.
Kiana Valizade, Bahman Seraj, Sara Ghadimi, Mohammad Javad Kharazifard, Nasim Chiniforush   +4 more
doaj   +1 more source

Fluoride Release from Two High-Viscosity Glass Ionomers after Exposure to Fluoride Slurry and Varnish [PDF]

, 2019
The effect of brushing with different fluoride slurries on the fluoride release (FR) of different high-viscosity glass ionomer cements (GICs) was investigated.
Nassar, Hani M., Platt, Jeffrey A.
core   +2 more sources