Results 11 to 20 of about 140,919 (361)

Imprints method for determining the ratio of macro- and microhardness when tested for Vickers hardness

open access: goldJournal of Physics: Conference Series, 2020
Abstract The method has been developed for calculating microhardness values under different loads, with known macro-hardness as well as with macro-hardness and microhardness with a single microhardness value, based on comparing the size of non-recovered and recovered imprints – imprints method (IM).
A. M. Adaskin, I. Yu. Sapronov
openalex   +3 more sources

Vickers Hardness of Diamond and cBN Single Crystals: AFM Approach

open access: yesCrystals, 2017
Atomic force microscopy in different operation modes (topography, derivative topography, and phase contrast) was used to obtain 3D images of Vickers indents on the surface of diamond and cBN single crystals with high spatial resolution.
Sergey Dub   +7 more
doaj   +2 more sources

Effect of thermal cycling on the mechanical properties of conventional, milled, and 3D-printed base resin materials: a comparative in vitro study [PDF]

open access: yesPeerJ
Purpose The purpose of this study is to evaluate the impact of thermal cycling on the mechanical properties of conventional, milled, and 3D-printed denture base materials.
Shuang Xiao, Ruo-Jin Zhang, Fa-Bing Tan
doaj   +3 more sources

Comparative Evaluation of Chitosan Nanoparticles, Silver Diamine Fluoride and Acidulated Phosphate Fluoride Gel on Microhardness of Artificial Carious Lesions Created on Extracted Teeth [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2020
Introduction: Dental caries is a multifactorial microbial infectious disease characterised by demineralisation of the inorganic and destruction of the organic substance of the tooth.
Kalyani Kiran Deokar   +6 more
doaj   +1 more source

Flexural strength and Vickers hardness of milled and 3D-printed resins for provisional dental restorations

open access: yesBrazilian Journal of Oral Sciences, 2023
Various forms of temporary resins are offered on the market; however, the properties of temporary resins obtained by milling and 3D printing have not been fully examined.
Ana Luiza Caetano Souza   +2 more
semanticscholar   +1 more source

Automatic Method for Vickers Hardness Estimation by Image Processing

open access: yesJournal of Imaging, 2022
Hardness is one of the most important mechanical properties of materials, since it is used to estimate their quality and to determine their suitability for a particular application. One method of determining quality is the Vickers hardness test, in which
Jonatan D. Polanco   +4 more
semanticscholar   +1 more source

The influence of geometrical tolerances of Vickers indenter on the accuracy of measured hardness [PDF]

open access: yesInternational Journal of Metrology and Quality Engineering, 2012
This paper reports work carried out to determine the influence of the Pyramidal indenter geometrical errors and tolerances on the accuracy of Vickers hardness measurements.
El-Sherbiny M.   +3 more
doaj   +1 more source

Selective laser melting of WC-Co reinforced AISI 1045 steel composites: microstructure characterization and mechanical properties

open access: yesJournal of Materials Research and Technology, 2022
Due to the limited wear resistance, AISI 1045 steel has limited applications in harsh environments, and the friction effect leads to premature scrapping.
Shifeng Liu   +6 more
doaj   +1 more source

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