Results 101 to 110 of about 7,059 (228)

Application of Cryogenic Treatment to Extend the Life of the TiAlN-Coated Tungsten Carbide Milling Cutter [PDF]

open access: yes, 2020
Cutting tools are important to the manufacturing industry since they will affect production efficiency and product quality. Cryogenic treatment can improve the material properties by decreasing residual stress, stabilizing dimensional accuracy, and ...
Hsiung J. -C., Kung H. -K., Wu J. -H.
core   +1 more source

Hardness and Surface Detail Reproduction of Gypsum Casts Retrieved from Addition Silicone Impressions Disinfected for Different Time Points

open access: yesJournal of Islamic Dental Association of Iran, 2017
Background and Aim: Bacterial colonization occurs following contamination of impression materials with blood and saliva. However, not all disinfecting agents are compatible with the impression materials and may cause changes in the resultant casts.
Sara Koosha   +2 more
doaj  

Investigation of slow collisions for (quasi) symmetric heavy systems: what can be extracted from high resolution X-ray spectra

open access: yes, 2012
We present a new experiment on (quasi) symmetric collision systems at low-velocity, namely Ar$^{17+}$ ions ($v=0.53$ a.u.) on gaseous Ar and N$_2$ targets, using low- and high-resolution X-ray spectroscopy. Thanks to an accurate efficiency calibration of
Lamour, Emily   +8 more
core   +3 more sources

Enabling lightweight, high load aero-bearings [PDF]

open access: yes, 2009
Environmental and commercial considerations are strongly driving research into weight saving in aircraft. In this research, innovative manufacturing processes were developed to produce lightweight titanium alloy bearings capable of withstanding ...
Avelar-Batista Wilson, J. C.   +8 more
core  

Knoop microhardness test in polymers used for surgical guide manufacturing after the disinfection process

open access: yesBrazilian Dental Science
Objective: To analyze the Knoop microhardness of samples made from Dima® Print Guide polymer (Kulzer – Brazil) after different disinfection methods.
Gustavo Macedo Pereira   +5 more
doaj   +1 more source

Friction and wear with a single-crystal abrasive grit of silicon carbide in contact with iron base binary alloys in oil: Effects of alloying element and its content [PDF]

open access: yes
Sliding friction experiments were conducted with various iron-base binary alloys (alloying elements were Ti, Cr, Mn, Ni, Rh, and W) in contact with a rider of 0.025-millimeter-radius, single-crystal silicon carbide in mineral oil.
Buckley, D. H., Miyoshi, K.
core   +1 more source

Relaciones proceso, microestructura, propiedades del cromado duro a escala de laboratirio [PDF]

open access: yes, 2014
In this paper hard chromium process is developed on small test specimens of AISI A36 steel. This work includes the development of hard chrome process at laboratory scale to provide a simplified procedure for industrial applications.
Ordóñez Barriga, Juan David
core  

High-velocity-oxidation performance of metal-chromium-aluminum (MCrAl), cermet, and modified aluminide coatings on IN-100 and type VIA alloys at 1093 C [PDF]

open access: yes
Cermet, MCrAl, and modified aluminide types of coatings applied to IN-100 and NASA-TRW-VIA alloy specimens were cyclically oxidation tested in a high velocity (Mach 1) gas flame at 1093 C.
Deadmore, D. L.
core   +1 more source

Erosive Potential of Cola-Type Soft Drinks on the Surface of Restorative Materials: In Vitro Study

open access: yesPesquisa Brasileira em Odontopediatria e Clínica Integrada
Objective: To evaluate the Knoop hardness of two types of glass ionomer cement - VitroMolar (VM) and Riva Self Cure (RSC), as well as the composite resin Z350 (CR), when exposed to two Cola-type soft drinks.
Marília Gabriela Corrêa Momesso   +4 more
doaj  

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