Results 71 to 80 of about 104,890 (283)

Single marker association results for enamel microhardness.

open access: yes, 2013
p-values
Italo M. Faraco Jr (306167)   +25 more
core   +1 more source

Microstructural and compositional analysis of debris in micro‐electrical discharge machining of Ni‐Ti shape memory alloy and stainless‐steel (SS304) Analyse der Mikrostruktur und Legierung von Abtragspartikeln beim Mikro‐Funkenerodieren von Ni‐Ti‐Formgedächtnislegierungen und Edelstahl (SS304)

open access: yesMaterialwissenschaft und Werkstofftechnik, EarlyView.
This research provides an extensive and sophisticated analysis of debris produced by micro‐electrical discharge machining processing of Ni‐Ti shape memory alloys and austenitic stainless steel (SS304) using brass electrodes. The research examines how different discharge energy levels controlled by capacitance and voltage affect debris shape and ...
M. Sarvar Rasheed   +3 more
wiley   +1 more source

Microhardness and marginal adaptation of pre-warmed composites

open access: yes, 2006
Objectives: The aim of this study was to examine the effect of pre-warmed composite on the microhardness and marginal adaptation. Methods: Ninety six identical class II cavities were prepared in extracted human molars and filled/cured in three 2 mm ...
Lussi, A, Rickli, C, Zimmerli, B
core  

Physics‐Informed Generative Machine Learning for Designing Crack‐Free γ′‐Strengthened Ni‐Based Superalloys for Laser Powder Bed Fusion

open access: yesMaterials Genome Engineering Advances, EarlyView.
This research proposes a physics‐informed generative machine learning framework to design SHA800, a crack‐free γ′‐strengthened nickel‐based superalloy for laser powder bed fusion, achieving a 43% γ′ volume fraction and 587 HV0.2 hardness. ABSTRACT Fabricating γ′‐strengthened nickel‐based superalloys via laser powder bed fusion (LPBF) faces significant ...
Kai Guo   +11 more
wiley   +1 more source

Influence of Higher Tramp Element Level on the Weldability of Automotive Steels

open access: yessteel research international, EarlyView.
The use of green recycled steels is constantly expanding in the automotive industry. The increase in tramp elements resulting from the recycling of steel is problematic. Tramp elements can lead to a negative influence on the weldability. To understand the influence, the welding properties of three green steels are characterized. The potential limits of
Elias Gebhard Vogt   +6 more
wiley   +1 more source

Measuring microhardness of polymers

open access: yes, 2010
Diplomová práca sa zaoberá meraním mikrotvrdosti polymérnych materiálov a vplyv plnenia a ožarovania na zmenu ich mikrotvrdosti. V teoretickej časti práce je zahrnutý popis metód merania mikrotvrdosti a prístrojov k určovaniu mikrotvrdosti.
Viselka, Marek
core  

Dentin microhardness during and after whitening treatments

open access: yes, 2004
Objective: This in vitro study aimed to evaluate the effect of bleaching agents on dentin microhardness during and after bleaching. Method and materials: Specimens were randomly assigned to seven groups (n = 15): Nite White Excel 2 Z [NW] 10% and 22 ...
Serra, M. C.   +3 more
core   +2 more sources

Influence of Viscous Dissipation on Wear Behavior and Hardness Evolution of Tool Steels in Glass‐Fiber‐Reinforced Polymer Processing

open access: yessteel research international, EarlyView.
Tool steels tested under injection molding conditions with glass‐fiber‐reinforced polymers, revealing how viscous dissipation drives hardness loss, even in PM grades. A sharp rise in wear with increasing injection volume rate and thermomechanical load uncovers striking material differences.
David Zidar   +3 more
wiley   +1 more source

Determination of enamel and coronal dentin microhardness

open access: yes, 2015
The Vickers microhardness of enamel and coronal dentin of 30 canines was evaluated. The incisal portion of the crown was discarded by means of a transverse section made 5mm, coronally, from the cemento-enamel junction located on the buccal surface ...
Todescan, José Hildebrando   +5 more
core   +1 more source

HWTS 50 Tool Steel Tailored for Laser Powder Bed Fusion: Sliding Wear of Bare Surfaces and Nitriding Response in Comparison with 18Ni300 and AISI H13

open access: yessteel research international, EarlyView.
This work investigates the wear resistance and nitriding behavior of PBF‐LB/M‐processed Osprey HWTS 50, a lean hot work tool steel. Three heat treatment conditions are compared to conventional wrought H13, H11, and PBF‐LB/M 18Ni300. The study highlights HWTS 50's enhanced nitrogen diffusion, deeper nitriding hardness depth, and comparable or improved ...
Jonathan Hann   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy