Results 81 to 90 of about 4,745,577 (253)

Overlap Percentage Effects on Microstructure and Microhardness in Wire Arc Additive Manufacturing of AISI 308L Stainless Steel

MetalMat, EarlyView.
Overlap percentage governs the remelting, dilution, and solidification behavior of CMT‐WAAM AISI 308L stainless steel. Increasing overlap to 50% promotes stronger bead‐to‐bead bonding, wider transition zones, and localized hardness enhancement, with the highest hardness observed in the overlap region due to grain refinement and δ‐ferrite redistribution.
Mojtaba Karamimoghadam, Mohammad Rezayat, Antonio Mateo, Nicola Contuzzi, Giuseppe Casalino   +4 more
wiley   +1 more source

The Effect of a Mineralized Bone Graft on the Surface Microhardness of Mineral Trioxide Aggregate and Biodentine [PDF]

, 2019
Introduction: This study was designed to determine the effect of Osteon II mineralized bone powder on the surface microhardness of two retrofilling materials: Mineral trioxide aggregate (MTA) and Biodentine (BD).
Shahi, Shahriar, Torabi, Zahra, Abolhasani, Somayeh, Ghasemi, Negin, Rezaie, Yashar, Rahimi, Saeed   +5 more
core   +1 more source

Breaking Extrapolation Barriers: Dual Innovations for Property and Component Design of Multi‐Component Alloy

Materials Genome Engineering Advances, EarlyView.
This study breaks extrapolation barriers in alloy design by merging symbolic regression with latent space sampling. The dual‐strategy framework enables accurate prediction of high‐hardness properties and navigates uncharted compositional spaces. The approach successfully designs novel high‐entropy alloys with hardness exceeding 863.5 HV, demonstrating ...
Zhigang Yu, Boyu Zhao, Jianhua Chen, Jun Luan, Yunying Fan, Xingli Zou, Xionggang Lu   +6 more
wiley   +1 more source

Characterization and microhardness of Ni−W−P coatings electrodeposited with gluconate bath

, 2020
Ni−W−P coatings are electrodeposited from an acid gluconate bath and the effect of P addition to deposits is characterized by various physicochemical techniques.
Mahalingam, DK, Bera, Parthasarathi, Mahalingam, Dinesh K., Dinesh K. Mahalingam, Parthasarathi Bera   +4 more
core   +2 more sources

Effect of light curing unit on resin-modified glass-ionomer cements: a microhardness assessment

Journal of Applied Oral Science, 2009
OBJECTIVE: To evaluate the microhardness of resin-modified glass-ionomer cements (RMGICs) photoactivated with a blue light-emitting diode (LED) curing light. MATERIAL AND METHODS: Thirty specimens were distributed in 3 groups: Fuji II LC Improved/GC (RM1)
Daniela Francisca Gigo Cefaly, Liliam Lucia Carrara Paes de Mello, Linda Wang, José Roberto Pereira Lauris, Paulo Henrique Perlatti D'Alpino   +4 more
doaj   +1 more source

Effect of Fluoride Treatments on Bleached Enamel Microhardness and Surface Morphology.

Oral health & preventive dentistry, 2017
To evaluate the effect of three different fluoride treatments on the surface microhardness and morphology of human enamel exposed to two different bleaching agents.Twenty-three extracted human third molars were sectioned to obtain 90 enamel fragments, mounted on acrylic resin supports, polished and randomly divided into 9 groups (n = 10). The specimens
Dimitrios, Dionysopoulos, Eugenia, Koliniotou-Koumpia, Kosmas, Tolidis, Paris, Gerasimou   +3 more
openaire   +2 more sources

Effect of Crystal Polymorphism on Elastic Modulus and Hardness of Poly(Butylene 2,6‐Naphthalate) (PBN)

Polymer Engineering &Science, EarlyView.
The research provides insight into the mechanical behavior of the high‐performance polyester Poly(Butylene 2,6‐Naphthalate) containing different crystal polymorphs, adjustable by the conditions of melt‐crystallization. ABSTRACT The modulus of elasticity and hardness of poly(butylene 2,6‐naphthalate) (PBN) were investigated at different length scales ...
Mengxue Du, Thomas Chudoba, Christina Wüstefeld, Ralf Lach, Katalee Jariyavidyanont, René Androsch   +5 more
wiley   +1 more source

Vickers Microhardness as a Viable Mechanical Property Measurement Technique for High Explosive Materials

Propellants, Explosives, Pyrotechnics, EarlyView.
There are multiple drivers for the development of reliable mechanical property techniques for high explosive (HE) samples, particularly smaller HE samples. While Vickers microhardness is a commonly used technique for mechanical characterization in metals and other materials, there has been little work using this technique for HE materials, particularly
Paul B. Mirkarimi
wiley   +1 more source

Is It Necessary to Prepare the Enamel before Dental Bleaching?

International Journal of Dentistry, 2017
The aim of this in vitro study was to assess the influence of distinct surface treatments on the microhardness and color of enamel that will be bleached.
Andréa Dias Neves Lago, Patrícia Moreira de Freitas, Erika Michele dos Santos Araújo, Adriana Bona Matos, Narciso Garone-Netto   +4 more
doaj   +1 more source

Tailoring Laser Powder Bed Fusion and Post‐Processing Parameters for JIS SKD61 Tool Steels: Surface Roughness, Microstructure, and Mechanical Properties

steel research international, EarlyView.
Laser powder bed fusion of JIS SKD61 tool steel is systematically optimized using a Taguchi design and ANOVA. Hatch spacing and layer thickness are identified as dominant parameters controlling surface roughness and tensile strength. Subsequent tempering at 600°C improves microstructural stability and mechanical performance, enabling high‐density SKD61
Masrurotin Masrurotin, Andi Ard Maidhah, Maziar Ramezani, Wojciech Macek, Cho‐Pei Jiang   +4 more
wiley   +1 more source