Results 11 to 20 of about 226,462 (213)

Statistical models for estimating the uniaxial compressive strength and elastic modulus of rocks from different hardness test methods

open access: yesHeliyon, 2021
In engineering projects (dams, tunnels, slope stability) the strength characteristics of the rocks affect the construction operations. It is sometimes difficult, time-consuming, and expensive to evaluate the engineering properties of solid rocks by ...
Ahmet Teymen
doaj   +1 more source

Hardness relationship between eNM3A10 and conventional hardness scales

open access: yesMeasurement: Sensors, 2021
Small ball rebound hardness eNM3A10 is a next-generation rebound hardness test with features not existing in conventional rebound hardness tests: reduced mass effect of hardness and satisfying the similarity rule of hardness (Minimum thickness of steel ...
Takashi Yamamoto   +2 more
doaj   +1 more source

Enhanced thermal stability and fracture toughness of TiAlN coatings by Cr, Nb and V-alloying [PDF]

open access: yes, 2018
The effect of metal alloying on mechanical properties including hardness and fracture toughness were investigated in three alloys, Ti~0.33Al0.50(Me)~0.17N (Me¿=¿Cr, Nb and V), and compared to Ti0.50Al0.50N, in the as-deposited state and after annealing ...
Andersson, J. M.   +7 more
core   +2 more sources

Effects of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and fluoride on the microhardness of enamel treated with a bleaching agent: ex vivo

open access: yesActa Odontologica Turcica, 2017
Objective: The aim of this study was to compare the effects of casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and 1.23% acidulated phosphate fluoride (APF; pH 3.5) on the microhardness of enamel treated with a bleaching agent. Materials and
Mügem Aslı Gürel Ekici   +3 more
doaj   +1 more source

The contribution of 211 particles to the mechanical reinforcement mechanism of 123 superconducting single domains [PDF]

open access: yes, 2003
Hardness and fracture toughness of Dy-123 single-domains were studied by Vickers micro-indentation. A significant anisotropy of the mechanical properties was observed. Hardness tests give higher values when performed in (001) planes rather than in planes
Ausloos, M.   +7 more
core   +2 more sources

Microstructural and Corrosion Properties of Cold Rolled Laser Welded UNS S32750 Duplex Stainless Steel [PDF]

open access: yes, 2018
The main goal of this work was to study the effect of plastic deformation on weldability of duplex stainless steel (DSS). It is well known that plastic deformation prior to thermal cycles can enhance secondary phase precipitation in DSS which can lead to
B\uf6gre, Balint   +5 more
core   +1 more source

Evaluation of photo-activation appliances used in dentistry [PDF]

open access: yesRGO: Revista Gaúcha de Odontologia, 2008
Objective: Verify the Vickers microhardness promoted by three photo-activation appliances: one Halogen Light Ultralux (Dabi-Atlante, Ribeirão Preto, Brazil) and two Light Emitting Diodes.
Thales Ribeiro de Magalhães Filho   +5 more
doaj  

Dual morphology (fibres and particles) cellulosic filler for WPC materials [PDF]

open access: yes, 2016
Wood-plastic composites (WPC) were fabricated by using a polyethylene (PE) matrix and filling it with wood flour in the amount of 30 wt.%, and compared with the same composites with further amount of 10 wt.% of cellulosic recycled fibres added.
QUITADAMO, ALESSIA   +3 more
core   +1 more source

Basic mechanical properties of layered steels

open access: yesActa Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013
This article deals with identifying attributes of layered steel materials (damask steel) with the help of mechanical tests. Experimentally verify basic mechanical properties of layered steel and subsequently assessed it in comparison with the values ...
Michal Černý   +3 more
doaj   +1 more source

HV/HR-CMOS sensors for the ATLAS upgrade—concepts and test chip results [PDF]

open access: yes, 2015
In order to extend its discovery potential, the Large Hadron Collider (LHC) will have a major upgrade (Phase II Upgrade) scheduled for 2022. The LHC after the upgrade, called High-Luminosity LHC (HL-LHC), will operate at a nominal leveled instantaneous ...
Backhaus, M.   +39 more
core   +2 more sources

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