Results 211 to 220 of about 33,032 (255)

Micro-Hardness of PA6 Influenced by Beta Irradiation

Applied Mechanics and Materials, 2015
In this paper, the effect of the electron beam irradiation on the indentation hardness, indentation modulus and indentation creep have been studied by means of the Depth sensing indentation (DSI). Cross-linking is a process in which polymer chains are associated through chemical bonds.
Martin Ovsik, David Manas, Miroslav Manas, Michal Stanek, Martin Reznicek, Petr Kratky   +5 more
openaire   +1 more source

A Review of Micro Hardness Measurement in Turning Operation

Applied Mechanics and Materials, 2015
Surface integrity estimation is used to enhance the functional behavior of the machined component. Enhancement of surface integrity in a turning operation by one of the reliable factor is micro hardness. Micro hardness measurement used to measure the degree of work hardening, sub surface alteration, functional attribute and analyzes the difference ...
B. Singaravel, Thangiah Selvaraj
openaire   +1 more source

Micro-hardness method of studying intracrystalline liquation

Bulletin of the Academy of Sciences of the USSR Division of Chemical Science, 1952
1. Intra-crystalline liquation of alloys of aluminum and magnesium and of bismuth and antimony has been studied by the micro-hardness method. 2. The hardness of the alloys varies in accordance with the theoretical consideration previously advanced.
D. A. Patrov, L. A. Raikovskaya
openaire   +1 more source

Micro-hardness measurements on single haversian systems in bone

Experientia, 1954
Mit Hilfe von weichen Rontgenstrahlen wurde die Mineralsalzverteilung uber den Querschnitt des menschlichen Femur registriert. Mittels eines Mikroharteprufers wurden die Orte hohen, mittleren und niedrigen Mineralsalzgehaltes gepruft. Es ergab sich eine gute Ubereinstimmung zwischen dem Grad der Mineralisierung und der Harte des Knochens.
openaire   +2 more sources

Ultra-micro-hardness of organic and inorganic crystals

Journal of Physics D: Applied Physics, 1993
The measurement of ultra-micro-hardness is an attempt to find a physical property which can be used for the description of the so-called abrasion resistance of crystals produced in chemical engineering equipment. Such approaches are necessary in order to compare calculations of the secondary nucleation rates for different substances.
J Ulrich, M Kruse
openaire   +1 more source

Effect of pressure and light curing of composite micro hardness.

Journal of biological regulators and homeostatic agents, 2020
The aim of this study is to evaluate the micro hardness Vickers of a composite micro hybrid polymerized under constant pressure. Twelve experimental samples were made equally divided into two groups: an experimental group and a control. Enamel plus HRi (Micerium) microbiotic composite resin, UD3 colour, was inserted into a syringe heater (ENA HEAT ...
Campanella V., Gallusi G., Di Taranto V., Cugini C., Nardi R., Mea A., Marzo G., Libonati A.   +7 more
openaire   +2 more sources

The micro-hardness of metals at very low loads

Philosophical Magazine, 1970
Abstract The micro-hardness of gold has been investigated over a range of indentation sizes from 0.5 mm to 0.2 μm using loads down to 1.0 mg. The indentations were made using a series of spherical indenters of varying radius. In this way it was possible to keep the shape of indentations geometrically similar over a wide range of indentation sizes and ...
N. Gane, J. M. Cox
openaire   +1 more source

Micro-Hardness Test of Cross-Linking LLDPE

Advanced Materials Research, 2017
The presented article deals with the research of micro-mechanical properties in the surface layer of modified linear polyethylene (LLDPE). These micro-mechanical properties were measured by the Depth Sensing Indentation - DSI method on samples which were non-irradiated and irradiated by different doses of the β - radiation (0, 66, 132 and 198 kGy ...
Martin Ovsik, David Manas, Miroslav Manas, Michal Stanek, Vaclav Janostik   +4 more
openaire   +1 more source

MICRO-HARDNESS MEASUREMENT OF STONE SAMPLES

2017
Stone hardness is an important factor which strongly affects machinability and overall quality of the stone machining processes. Identification of such heterogeneous materials in order to establish matching cutting parameters often requires a large number of micro-hardness measurements to be taken.
Klaić, Miho, Murat, Zrinka, Čatlak, Zlatko   +2 more
openaire   +2 more sources

Micro-hardness characteristics of anterior restorative materials

British Dental Journal, 1980
G S, Wilson, E H, Davies, J A, von Fraunhofer   +2 more
openaire   +2 more sources