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Determination of film thickness through simulation of vickers hardness testing
(Materials Research, 2017-05)
In recent decades, changes in the surface properties of materials have been used to improve their tribology characteristics. However, this improvement depends on the process, treatment time and, essentially, the thickness ...
Influence of pre-heat treatment and different light-curing units on Vickers hardness of a microhybrid composite resin
(2009-06-01)
The aim of this study was to evaluate the hardness of a dental composite resin submitted to temperature changes before photo-activation with two light-curing unite (LCUs). Five samples (4 mm in diameter and 2 mm in thickness) ...
Influence of pre-heat treatment and different light-curing units on Vickers hardness of a microhybrid composite resin
(2009-06-01)
The aim of this study was to evaluate the hardness of a dental composite resin submitted to temperature changes before photo-activation with two light-curing unite (LCUs). Five samples (4 mm in diameter and 2 mm in thickness) ...
The effects of exposure time on the surface microhardness of three dual-cured dental resin cements
(2011-09-01)
This study evaluated the exposure time of light-curing of the polymers used for cementation on microhardness test in different storage times. The polymers (specifically called resin cements) were RelyX ARC, RelyX U100, and ...
Evaluation of Vickers hardness of different types of acrylic denture base resins with and without glass fibre reinforcement
(WILEY-BLACKWELLHOBOKEN, 2013-08-02)
Objective: To evaluate the Vickers hardness of different acrylic resins for denture bases with and without the addition of glass fibres. Background: It has been suggested that different polymerisation methods, as well as ...
Experimental and numerical analysis of vickers hardness testing
(International Journal of Research and Reviews in Applied Sciences, 2013-11)
Vicker’s hardness and Raman spectroscopy evaluation of a dental composite cured by an argon laser and a halogen lamp
(Brasil, 2003)
We present the results of the Vicker’s hardness test and the use of near-infrared Raman spectroscopy (RS) to measure in vitro the degree of conversion (DC) of a bis(phenol)-A-glycidyl-dimethacrylate-based composite resin, ...
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments
(2006-12-01)
The purpose of this study was to evaluate the effect of heat treatments on the Vickers hardness of commercially pure titanium and Ti-6Al-4V cast alloys. Six-millimeter-diameter cylindrical specimens were cast in a Rematitan ...
Vickers hardness of cast commercially pure titanium and Ti-6Al-4V alloy submitted to heat treatments
(2006-12-01)
The purpose of this study was to evaluate the effect of heat treatments on the Vickers hardness of commercially pure titanium and Ti-6Al-4V cast alloys. Six-millimeter-diameter cylindrical specimens were cast in a Rematitan ...