Results 101 to 110 of about 140,919 (361)

Effect of gallic acid addition on some mechanical properties of self-adhesive resin cements

open access: yesBrazilian Oral Research
Self-adhesive resin cements (RCs) activate matrix metalloproteinase (MMP) and cathepsin-related collagen degradation, and gallic acid (GA) inhibits the activity of both MMPs and cysteine cathepsins.
Bebek Serra OGUZ AHMET   +3 more
doaj   +1 more source

Analysis of indentation size effect in copper and its alloys [PDF]

open access: yes, 2013
For describing the indentation size effect (ISE), numerous models, which relate the load or hardness to the indent dimensions, have been proposed. Unfortunately, it is still difficult to associate the different parameters involved in such relationships ...
CHICOT, Didier   +6 more
core   +6 more sources

Adaptive Twisting Metamaterials

open access: yesAdvanced Materials, EarlyView.
This work introduces torque‐controlled twisting metamaterials as a transformative platform for adaptive crashworthiness. By combining multiscale predictive modeling with experimental validation on additively manufactured gyroids, it demonstrates tunable stiffness, collapse stress, and energy absorption.
Mattia Utzeri   +6 more
wiley   +1 more source

Effect of different light-curing techniques on hardness of a microhybrid dental composite resin

open access: yesBrazilian Dental Science, 2014
Objective: This study assessed the Vickers hardness provided by two LCUs when using (1) direct and indirect light-curing techniques, (2) 40 and 60 seconds and (3) top and bottom surfaces. Material and Methods: One halogen Curing Light 2500 (3M Espe) and
Alessandra Nara de Souza Rastelli   +4 more
doaj   +1 more source

Oxidation-induced changes in mechanical properties of silicon nitride ceramics [PDF]

open access: yes, 1999
The effect of oxidation on the room-temperature mechanical properties of four different silicon nitride ceramics is investigated. The strength and the elastic modulus of the whole material and the hardness, the fracture toughness and the elastic ...
Arató, Péter   +2 more
core  

Hard Metal Production by ERS: Processing Parameter Roles in Final Properties [PDF]

open access: yes, 2019
Cemented carbide is a hard composite material, used widely in a variety of industries. The value of the global tungsten carbide market is expected to grow by 4.4% (compound annual growth rate) from 2017 to 2022.
Agote, Iñigo   +7 more
core   +3 more sources

Disruption of Sulfur Metabolism and Redox Homeostasis in Staphylococcus aureus Using Mechanically Robust Antibiofilm Ti‐Bi Alloys

open access: yesAdvanced Materials Interfaces, EarlyView.
Titanium (Ti) and bismuth (Bi) are selected as alloying elements for the preparation of the Ti‐Bi binary alloy system. Biofilm formation is found to be inhibited by bismuth through the disruption of sulfur metabolism and redox homeostasis, as well as through the direct downregulation of biofilm‐associated proteins.
Lei Shi   +10 more
wiley   +1 more source

Evaluation of Flexural Strength and Vickers Micro Hardness of Three Different Denture Base Resin Materials

open access: yesJournal of Pharmacy and Bioallied Sciences
Objectives: To evaluate the Vickers hardness and flexural strength of computer-aided design/computer-aided manufacture (CAD/CAM) milled, 3D-printed, and traditional heat-polymerized denture base resins used in computer-aided design and manufacture ...
Mohammed Ibrahim Mathar   +5 more
doaj   +1 more source

Evolution of microstructure and impact-strength energy in thermally and thermomechanically aged 15-5 PH [PDF]

open access: yes, 2008
Due to its outstanding mechanical resistance and resistance to corrosion, alloy 15-5 PH can be beneficially used for manufacturing aerospace structural parts.
Andrieu, Eric   +4 more
core   +3 more sources

Diamond 2D/3D Printing Technology: Bringing Scintillating Performance to Functional Materials and Their Applications

open access: yesAdvanced Materials Technologies, EarlyView.
This review highlights advances in printing with nano‐ and microparticulate diamond for applications such as sensors, thermal management, machining tools, and biointerfaces. By covering screen, inkjet, microcontact, and 3D printing techniques, it outlines how diamond particles can be integrated into composite materials and functional devices, while ...
Simona Baluchová   +1 more
wiley   +1 more source

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