Results 151 to 160 of about 143,288 (296)

MICROHARDNESS OF TOOTH ENAMEL WITH DIFFERENT LEVEL OF RESISTANCE

open access: yesУкраїнський стоматологічний альманах, 2018
This study about the microhardness of tooth enamel is evaluated by nanoidentation. The data indicate that the average microhardness of the enamel of the permanent teeth in the region of the equator is 5,75±0,06 Gpa, modulus of elasticity - 97,72±0,74 ...
N.L. Chukhray, V.A. Vynar
doaj  

Optimizing Post Friction Stir Welding Heat Treatment in Dissimilar Friction Stir Welded 6061/AlSi10MgMn Joints for Electrical Vehicle Battery Housing

open access: yesAdvanced Engineering Materials, Volume 28, Issue 5, 4 March 2026.
Microstructural evolution and hardness optimization along the cross‐section of friction stir welded AA6061/AlSi10MgMn joints, for electric vehicle battery housings, were investigated. Postweld aging between 170°C and 220°C enhances hardness uniformity within the nugget zone.
Emanuele Ghio, Emanuela Cerri
wiley   +1 more source

Ion-beam nitriding of steels [PDF]

open access: yes
The application of the ion beam technique to the nitriding of steels is described. It is indicated that the technique can be successfully applied to nitriding. Some of the structural changes obtained by this technique are similar to those obtained by ion
Salik, J.
core   +1 more source

Design of a Cobalt‐Free Maraging Steel with Ultra‐High Strength of 2.3 GPa Through Additive Manufacturing

open access: yesAdvanced Science, Volume 13, Issue 16, 18 March 2026.
A computationally designed, cobalt‐free maraging steel tailored for additive manufacturing achieves an ultra‐high tensile strength of 2.3 GPa with 5.7% elongation. This exceptional strength‐ductility synergy stems from high‐density core‐shell Ni3Ti/NiAl nanoprecipitates, a crack‐resistant composition, and a fine equiaxed grain structure enabled by ...
Hu Li   +6 more
wiley   +1 more source

Bioinspired Design of Extraordinary Wear‐Resistant Graphene/CoCrNi Multi‐Principal Element Alloy Composites

open access: yescMat, Volume 3, Issue 1, March 2026.
ABSTRACT The pursuit of simultaneously high wear resistance and excellent lubrication in multi‐principal element alloy (MPEA) composites is often hindered by a fundamental trade‐off, which is exacerbated by the agglomeration of high‐content graphene reinforcements.
Wen‐Ting Ye   +10 more
wiley   +1 more source

Evaluation of Surface Microhardness of Silver and Zirconia Reinforced Glass-ionomers with and without Microhydroxyapatite

open access: yesJournal of Dental Biomaterial, 2017
Statement of problem: Hardness of restorative materials like glass-ionomer is an important factor in the longevity of restoration. Objectives: The aim of this study was to evaluate the microhardness of glass-ionomer modified with different materials ...
Sharafeddin F   +3 more
doaj  

The role of anions in mechanical failure [PDF]

open access: yes
Fabrication and properties of hot-pressed polycrystalline magnesium oxide containing anion ...
Kapadia, C. M., Leipold, M. H.
core   +1 more source

Experimental Design and Predictive Modeling of Hybrid Jute/Kenaf/Glass Fiber Polymer Composites With SiC Nanoparticles for Enhanced Flexural and Hardness Performance

open access: yesEngineering Reports, Volume 8, Issue 3, March 2026.
Hybrid composites of jute, kenaf, and glass fibers with SiC nanoparticles were optimized using RSM and ANN. Optimal configuration improved flexural strength by 18% and hardness by 32%, demonstrating machine‐learning‐guided design for superior structural performance.
Solairaju Jothi Arunachalam   +6 more
wiley   +1 more source

The Effect of Irradiation Time and Distance on the Microhardness of Three Commercial Nanohybrid Resin-Based Composites

open access: yesFrontiers in Biomedical Technologies, 2014
Purpose: The properties of resin-based composites as polymeric materials are related to the quality of polymerization. Microhardness measurement is an indirect method to predict this quality.
Tahereh Jafarzadeh-Kashi   +5 more
doaj  

Effect of grinding on the fatigue life of titanium alloy (5 Al-2.5 Sn) under dry and wet conditions [PDF]

open access: yes
The principal factors in the performance of aerospace materials are strength-to-weight ratio, fatigue life, fracture toughness, survivability and, of course, reliability. Machining processes and, in particular, grinding under adverse conditions have been
Jeelani, Shaik   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy