Results 71 to 80 of about 4,745,577 (253)

Efeito do pH de géis clareadores de alta concentração sobre a microdureza superficial do esmalte [PDF]

, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde, Programa de Pós-Graduação em Odontologia, Florianópolis, 2010O objetivo deste estudo foi avaliar, in vitro, a microdureza do esmalte dental após a aplicação de ...
Soares, Sonia Mara
core  

Influence of Fe Particle Size Distribution on Chemical Homogeneity, Microstructure, and Crack Formation in Fe–SiC Powder Blends Processed by PBF‐LB/M

Advanced Engineering Materials, EarlyView.
The influence of Fe particle size on in situ alloying of Fe–SiC powder blends in PBF‐LB/M is revealed. Contrary to expectations, the coarser Fe fraction provides a broader crack‐free processing window and slightly improved elemental homogeneity while producing higher but more variable hardness. The results highlight a complex trade‐off between particle
Anna Luise Strauch, Anastasiya Toenjes, Matthias Steinbacher   +2 more
wiley   +1 more source

Physical Properties of Transition Metal Hydride Superconductors Mg2TmH6 (Tm = Rh, Pd, Ir, Pt) by First‐Principles Calculations

Advanced Physics Research, EarlyView.
The electronic band structure determines all the charge transport properties of crystalline solids. It also controls the optical response of the material. Bonding characters are strongly influenced by the band structure. The band structures of Mg2TmH6 (Tm = Rh, Pd, Ir, Pt) compounds shown above confirm their metallic nature.
Md Ashraful Alam, Md Abdul Hadi Shah, F. Parvin, S. H. Naqib   +3 more
wiley   +1 more source

Nacre‐inspired layered composite with excellent mechanical support and osteogenic potential for cervical interbody cage

BMEMat, EarlyView.
The cervical interbody cage needs to take both biomechanical and biological requirements into account. Here, a new‐style degradable, multicomponent, and bioinspired nacre‐like cervical interbody cage composite, which exhibits promising mechanical‐support‐related behavior and osteogenesis‐related potential, is designed and prepared.
Xiu‐Wu Guo, Shao‐Meng Wen, Tian‐Yu Xing, Yang Zhou, Chun‐Xin Wang, Chang Ge, Si‐Ming Chen, Wen‐Zhi Zhang, Shu‐Hong Yu   +8 more
wiley   +1 more source

The Effect of Thermocycling on the Microhardness of Contemporary Glass Ionomer-Based Restorative Materials: An In Vitro Study

Bioengineering
Glass ionomer-based restorative materials are widely used in pediatric dentistry because of their chemical adhesion to tooth structure, ion-releasing capacity, and clinical handling advantages; however, their mechanical durability under simulated oral ...
Enes Bardakci, Didem Ozdemir Ozenen, Izzet Yavuz   +2 more
doaj   +1 more source

MTA cement exposed to acidic environment: Surface and internal microhardness

, 2014
Purpose: The surface deterioration that mineral trioxide aggregate (MTA) cements undergo during setting in acidic envi- ronment has already been demonstrated.
ANGERAME, DANIELE, Franzò, A., DE BIASI, MATTEO   +2 more
core   +1 more source

Protective Effects of Er:YAG Laser and PRG Pro‐Care Gel on Enamel Demineralization

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives Bioactive surface pre‐reacted glass‐ionomer (S‐PRG) technology and high‐power laser irradiation have been investigated as promising preventive approaches. S‐PRG particles exhibit multifunctional bioactive glass properties, with the ability to release and recharge ions.
Joice Pequeno‐da‐Silva, Felipe Fabrício Farias‐da‐Silva, Ana Cecília Correa Aranha, Carolina Steiner‐Oliveira   +3 more
wiley   +1 more source

Influence of surface roughness on load dependence of microhardness.

Journal of the Society of Materials Science, Japan, 1986
In order to investigate the influence of surface roughness on load dependence of microhardness of annealed structural rolled steel and carbon steel, hardness tests were made by changing the grade of surface roughness as a parameter. The results obtained were analyzed by means of the analysis of variance.The main results obtained were as follows;(1 ...
openaire   +2 more sources

Finish machining-induced surface roughness, microhardness and XRD analysis of selective laser melted Inconel 718 alloy

, 2018
Selective laser melting (SLM) is one of the most commonly used additive manufacturing (AM) techniques to manufacture metal components; however, during building process partially melted powders and/or pores on the outer surface of metallic parts results ...
KAYNAK, YUSUF
core   +1 more source

Fretting Wear and Corrosion Behavior of the Fe‐35Mn Biodegradable Alloy for Biomedical Applications

Materials and Corrosion, EarlyView.
This study evaluates the corrosion and tribological wear behavior of the Fe‐35Mn alloy, demonstrating superior mechanical stability and a more favorable degradation rate than pure iron, thereby highlighting its potential for biomedical applications. ABSTRACT The biodegradable Fe‐35Mn alloy has emerged as a promising material for temporary implants due ...
Kerolene Barboza da Silva, Caio Pascotti Valem, S. Sudhagara Rajan, Vasanth Gopal, Praveenkumar Kesavan, Roberto Zenhei Nakazato, Geetha Manivasagam, Ana Paula Rosifini Alves   +7 more
wiley   +1 more source