Results 61 to 70 of about 56,885 (233)

Novel polycrystalline WC-Co based cemented carbides and their properties

open access: yes, 2022
S.457-466Conventional cemented carbides consist of monocrystalline WC grains homogenously distributed within a metallic binder matrix like Co. We developed a new kind of cemented carbide which consists of extra-hard polycrystalline WC particles within a ...
Mayer, Markus   +2 more
core   +1 more source

Preferences for Vital Pulp Treatments in Primary Molars: A Survey of Spanish Dentists

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim To assess the preferences of dentists working in Spain regarding the management of deep caries removal and carious pulp exposures in primary molars. Methodology An anonymous web‐based survey was developed with Microsoft Forms (Microsoft Office 365) and distributed through social media among dentists in Spain.
Laura Bailleul   +3 more
wiley   +1 more source

WC-5Co Cemented Carbides Fabricated by SPS [PDF]

open access: yesArchives of Metallurgy and Materials, 2018
New graphite tools were designed and produced to fabricate a semi-finished product from which nine cutting inserts were obtained in one spark plasma sintering process.
P. Siwak, D. Garbiec
doaj   +1 more source

Ultra‐High‐Speed Sintering of 3.5Y‐TZP Zirconia: Time Reduction Without Compromising Translucency

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To assess, firstly, the impact of three sintering speeds on translucency and grain size of 3.5Y‐TZP zirconia (Katana HT) across clinically relevant thicknesses, and secondly, the effect of thermocycling on translucency. Materials and Methods Disc specimens were fabricated at six thicknesses (0.7–2.0 mm) and sintered using SLOW (7 h),
Tatiana Roman   +5 more
wiley   +1 more source

Resistencia ao desgaste abrasivo em metais duros sem cobalto [PDF]

open access: yes, 1991
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnologico. Programa de Pós-Graduação em Engenharia Mecânica. Florianópolis, 1991Este trabalho tem por objetivo qualificar a resistência ao desgaste abrasivo de metais duros ...
Ribas, Heraclito Inacio
core  

Cemented carbides

open access: yes, 2011
The goal of the submitted thesis is to bring out the new knowledge about the cemented carbides, their production, properties and coating. Last but not least, this thesis analyses the latest offered assortment of cemented carbides by selected ...
Vik, Michal
core   +1 more source

Optimized Electroless Deposition of Co on Activated WC Powders for WC-Co Cemented Carbides with Enhanced Mechanical Performance

open access: yesMetals
High-quality WC-Co composite powder is the prerequisite for achieving cemented carbides with superior mechanical properties. However, achieving homogeneous Co distribution on WC particles remains challenging due to the limited surface activity of WC and ...
Shenggang Wang   +3 more
doaj   +1 more source

Effects of Surface Abrasion With Airborne‐Particles and Surface Etching With Hydrofluoric Acid on Color Difference and Translucency of Nano‐Hybrid Ceramic

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objectives To evaluate the effects of alumina airborne‐particle abrasion, glass‐bead airborne‐particle abrasion, and hydrofluoric acid etching of intaglio surfaces on the color difference and translucency of a nano‐hybrid ceramic after cementation to resin abutment specimens, and to analyze the relationships between surface roughness and these
Hyuk‐Joon Lee   +3 more
wiley   +1 more source

Plasma-Assisted Chemical Vapor Deposition of TiBN Coatings on Nanostructured Cemented WC-Co

open access: yesMetals, 2020
The plasma-assisted chemical vapor deposition (PACVD) technique has shown many advantages in applications, where thin coatings with superior wear properties are demanded, especially for geometrically complex parts.
Matija Sakoman   +2 more
doaj   +1 more source

Influence of Universal Adhesives With or Without Silane Compared to One‐Step and Two‐Step Silane Agents on Bond Strength to Lithium Disilicate

open access: yesJournal of Esthetic and Restorative Dentistry, EarlyView.
ABSTRACT Objective To evaluate the microshear bond strength (μSBS) to lithium disilicate achieved with universal adhesives (with and without silane) compared with one‐step and two‐step silanes, immediately (IM) and after thermocycling (TC). Chemical interaction (CI) was also assessed.
Camilo Pulido   +4 more
wiley   +1 more source

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