Results 21 to 30 of about 399,302 (324)

Asymmetric indentation: problem and solution

open access: yesSN Applied Sciences, 2023
Vickers and Knoop testers are the most common tools used to measure the hardness of materials. However, a very small tilt in the sample surface even in the order of a fraction of a degree produces a noticeable asymmetry, which affects the accuracy of the
M. El-Sayed Ali   +3 more
doaj   +1 more source

Synthesis, microstructure and indentation Vickers hardness for (Y3Fe5O12)x/Cu0.5Tl0.5Ba2Ca2Cu3O10-δ composites

open access: yesApplied Physics A, 2022
High-performance and low-cost composites are engineers’ dream for technological applications. To fulfill the material for an engineering application, it is important to understand the mechanical properties of the material.
M. Rekaby   +3 more
semanticscholar   +1 more source

Characterization of hardness, elastic modulus and fracture toughness of RB-SiC ceramics at elevated temperature by Vickers test

open access: yesMaterials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2019
Xiaoshuang Rao
exaly   +2 more sources

The Influence of Particle Size and Reinforcement Rate of B4C on Mechanical and Microstructure Properties of Al-B4C Composites

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi, 2020
In this study, Al-B4C composites were produced with various particle sizes (B4C: 3.5 and 20 µm) and reinforcement rates (B4C%: 1, 3, 6, 9, 12, 15, 30%) by the powder metallurgy method.
Mahmut Can Şenel, Mevlüt Gürbüz
doaj   +1 more source

Conventional Vickers and true instrumented indentation hardness determined by instrumented indentation tests [PDF]

open access: yes, 2010
We evaluate Vickers hardness and true instrumented indentation test (IIT) hardness of 24 metals over a wide range of mechanical properties using just IIT parameters by taking into account the real contact morphology beneath the Vickers indenter ...
Bulychev   +6 more
core   +1 more source

Depth-sensing indentation tests in studying plastic instabilities [PDF]

open access: yes, 2004
This review surveys the phenomenon of plastic instabilities occurring in depth-sensing indentation measurements. Investigations presented focus on the characterization of Portevin-Le Chatelier type instabilities observed in different metal alloys during ...
Bobji   +14 more
core   +1 more source

Improvement design of existing threshing machine at Kilang Sawit Risda, Ulu Keratong [PDF]

open access: yes, 2020
Palm oil is very important in the agricultural and economic sectors in Malaysia. It’s origin is in the tropical rain forest region of West Africa, which the main belt runs through the southern latitudes of Cameron, Cote D’ ivoire, Ghana, Liberia, Nigeria,
Chen, Chit Wee   +8 more
core   +2 more sources

Influence of different polishing materials in the material removal of steel samples [PDF]

open access: yes, 2018
The quality of injection moulded polymer optic parts depends on the surface finish of the respective mould. In order to improve and control the surface finish of the mould it is important to be able to keep the material removal constant during the ...
Almeida, Rui   +3 more
core   +2 more sources

Result analysis of EURAMET Vickers comparison between INRiM and UME (EURAMET.M.H-K1.b.c)

open access: yesMeasurement: Sensors, 2021
A bilateral key comparison between INRiM (National Metrology Institute of Italy) and TUBITAK UME (National Metrology Institute of Turkey) had been decided to be organized in the field of Hardness Metrology to determine the consistency of the national ...
C. Kuzu, A. Germak, C. Origlia, E. Pelit
doaj   +1 more source

On the Application of Vickers Micro Hardness Testing to Isotactic Polypropylene

open access: yesPolymers, 2022
Hardness is a useful measure of a material’s resistance to permanent indentation; but for viscoelastic polymers, hardness data are highly dependent on the test type and the parameter set chosen.
Hao Wu   +7 more
semanticscholar   +1 more source

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