نتایج جستجو برای: brinell hardness

تعداد نتایج: 26023  

Journal: :Journal of composites science 2023

Due to the advantages over other metallic materials, such as superior corrosion resistance, excellent biocompatibility, and favorable mechanical properties, titanium, its alloys related composites, are frequently utilized in biomedical applications, particularly orthopedics dentistry. This work focuses on developing novel titanium-titanium diboride (TiB2; ceramic material) composites for dental...

Journal: :Journal of the American Ceramic Society 2021

Dislocation-tuned functional properties such as electrical conductivity, thermal and ferroelectric in oxides are attracting increasing research interest. A prerequisite for harvesting these requires successful introduction control of dislocation density arrangement without forming cracks, which is a great challenge due to their brittle nature. Here, we report simple method mechanically tailor t...

Journal: : 2022

Four groups of AISI 1020 specimens were heat-treated at 850 °C in a muffle furnace for 30 minutes then quenched oil. The samples tempered 400 with time period each group as (group B, 2 hours), C, 3 and D, 4 hours). mechanical properties the studied using universal tensile testing equipment Brinell hardness machine. values calculated from given modified equation. torsional fatigue behavior was d...

A. Afsari M.A. Ranaei

In this article, commercially pure copper samples were severely deformed by equal channel angular pressing (ECAP) up to eight passes at room temperature. The effects of severe plastic deformation on the microstructure, mechanical properties, and electrical conductivity of the copper were investigated. The microstructure evolution was followed by optical microscope and field emission scanning el...

Journal: :Politeknik dergisi 2023

In the industry, additively manufactured components are becoming more prevalent. Rather than growth in production of ordinary non-structural by additive manufacturing, Additive manufacturing's increased safety-critical component drives this prevalence. Thus, manufacturing braking system part, a vital subsystem almost all vehicles, will help spread method. This study investigated delamination is...

Journal: :Wood Material Science and Engineering 2023

Thermo-mechanical densification of sawn timber results in improved mechanical properties, but densified wood remains a fairly expensive niche product, partially because high-cost batch processing. Densification continuous process could address this problem and was shown to be possible previous research. The outcomes were limited proofs-of-concept, due insufficient cooling capabilities the used ...

2014
Jakub Dömény Vojtěch Koiš Miroslav Zapletal

In this study, the application of microwave treatment for wood plasticisation and its densification for flooring system purposes is presented. Microwave plasticisation was carried out using a continuous laboratory device at a frequency of 2.45 GHz, and the testing samples made from European beech (Fagus sylvatica L.) wood were plasticised at different power modes (2 kW, 3.5 kW, and 5 kW). After...

2015
Petr Valášek Miroslav Müller

Original scientific paper The experiment centres on two and three body abrasion in three-phase waste-based composite systems. The composite systems abrasion resistance is defined not only by the physical-mechanical relationships of the separate phases of the composite, but also by the mutual interaction of the phases and on the matrix-filler interface. To describe the composite system abrasion ...

2012
Jan Łukaszczyk Bartosz Janicki Achim Frick

The aim of this work was to synthesize and investigate properties of a novel dimethacrylic monomer based on bioderived alicyclic diol--isosorbide. Its potential as a possible substitute of 2,2-bis[4-(2-hydroxy-3-methacryloyloxypropoxy)phenyl]propane (BISGMA), widely used in dental restorative materials and suspected for toxicity was assessed. The novel monomer was obtained in a three-step synth...

Journal: : 2022

Aluminum alloys are widely used in aircraft industry where good corrosion resistance, light weight and high strength the primary requirements. In present study, attempts have been made to extend application of mechanical fatigue properties AA7025 laboratory with corrosive environment media combined at elevated temperature (ET) 150⁰C. The experimental results analysis - behavior samples showed t...

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