Results 101 to 110 of about 36,190 (242)

Effect of metal selection and porcelain firing on the marginal accuracy of titanium-based metal ceramic restorations

open access: yesThe Journal of Prosthetic Dentistry, 2010
Titanium is the most biocompatible metal used for dental casting; however, there is concern about its marginal accuracy after porcelain application since this aspect has direct influence on marginal fit.The purpose of this study was to determine the effect that metal selection and the porcelain firing procedure have on the marginal accuracy of metal ...
Lecturer, Department of Fixed Prosthodontics, Faculty of Dental Medicine, Al-Azhar University, Cairo, Egypt ( host institution )   +6 more
openaire   +3 more sources

Bond strength and interfacial analysis of six CoCr alloys made by conventional casting and selective laser melting

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the effects of the elemental composition and the manufacturing process of cobalt chromium–molybdenum (CoCr–Mo), cobalt chromium–tungsten (CoCr–W), and CoCr–Mo‐W alloys on metal–ceramic bond strength. Materials and Methods Six CoCr‐based alloys were included in this study, a were classified into three different groups ...
Youssef S. Al Jabbari   +3 more
wiley   +1 more source

Shade variability and stability in interim and definitive tooth‐colored resin‐based restorative materials: Comparing manufacturer‐claimed shades to a universal shade guide

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To evaluate the shade variability and stability of interim and definitive tooth‐colored restorative materials by comparing manufacturer‐claimed shades to a universal shade guide before and after thermocycling. Materials and Methods Eight commercially available tooth‐colored restorative materials were tested, including conventional ...
Amal Alfaraj   +2 more
wiley   +1 more source

New technical solutions in nanotechnology. Part 2

open access: yesНанотехнологии в строительстве, 2016
The new technical solutions including inventions in the area of nanotechnology and nanomaterials are efficiently applied in communal and housing services as well as in construction and other joint fields. The invention «The diagnostics method for defects
IVANOV Leonid Alexeevich   +1 more
doaj   +1 more source

A study of the durability of beryllium rocket engines [PDF]

open access: yes
An experimental test program was performed to demonstrate the durability of a beryllium INTEREGEN rocket engine when operating under conditions simulating the space shuttle reaction control system.
French, G. C., Paster, R. D.
core   +1 more source

The effects of material thicknesses and substrates on the translucency and color masking ability of additively manufactured definitive crown materials

open access: yesJournal of Prosthodontics, EarlyView.
Abstract Purpose To investigate the translucency of the new 3D‐printable materials concerning thickness and the color masking ability of each material against different substrate colors. Materials and Methods Ninety square‐shaped specimens (12.0 mm × 12.0 mm) of two new 3D‐printable materials: ceramic‐infiltrated hybrid resin composite (VS) and light ...
Ting Wang   +5 more
wiley   +1 more source

Burning of solids in oxygen-rich environments in normal and reduced gravity [PDF]

open access: yes
An experimental program was conducted to investigate the combustion characteristics of solids burning in a weightless environment. The combustion characteristics of thin cellulose acetate material were obtained from specimens burned in supercritical as ...
Andracchio, C. R., Cochran, T. H.
core   +1 more source

The Painterly Materiality of Clouds in Antony and Cleopatra and Hamlet

open access: yesRenaissance Studies, EarlyView.
Abstract This article examines the cloud‐gazing scenes in Antony and Cleopatra and Hamlet through the lens of early modern artistic theory and material practices, particularly the art of limning. Building upon existing philosophical and poetic interpretations of Shakespearean clouds as metaphors for ephemerality and memory, the essay argues that the ...
Anne‐Valérie Dulac
wiley   +1 more source

Development of technique for AR coating nickel and copper metallization of solar cells FPS project product development [PDF]

open access: yes
Experimental matrices were conducted to determine a suitable firing schedule for fritless tin printing ink. considerable difficulties were encountered with oxidation.
Taylor, W.
core   +1 more source

Plasma sprayed titanium coatings with/without a shroud [PDF]

open access: yes, 2020
: Titanium coatings were deposited by plasma spraying with and without a shroud. The titanium coatings were then assessed by scanning electron microscopy.
Zhou, Hong
core  

Home - About - Disclaimer - Privacy