Results 11 to 20 of about 226,851 (192)

EFFECT OF VARIOUS FIRE RETARDANTS ON BRINELL HARDNESS OF SOME WOOD

open access: yesBioResources, 2009
This study was performed to determine the impact of impregnation materials on the Brinell hardness of varnished wood materials. For this purpose, test specimens prepared from Scotch pine (Pinus sylvestris L.) and Oriental beech (Fagus orientalis Lipsky),
Şeref Kurt, Ayhan Özçifçi
doaj   +4 more sources

Bioinspired Regenerative Lignification Enables Ultra-Hard and Sustainable Bamboo Structural Materials. [PDF]

open access: yesExploration (Beijing)
Developing strong and sustainable materials is essential for reducing reliance on metals and lowering carbon emissions. Inspired by how plants naturally harden their cell walls, we created a rapid process that transforms bamboo into an ultra‐hard structural material by rebuilding lignin‐like networks within its structure.
Gan J, Zhang S, Huang Y, Yu W.
europepmc   +2 more sources

The effect of in situ nano-sized particle content on the properties of TiCx/Cu composites

open access: yesJournal of Materials Research and Technology, 2021
The compression properties, wear resistance and electrical conductivities of TiCx/Cu composites fabricated via thermal explosion reaction combined with hot press in Cu–Ti-CNTs system at various nano-sized TiCx content with similar size were investigated.
Dongdong Zhang   +4 more
doaj   +1 more source

Fatigue Properties Estimation and Life Prediction for Steels under Axial, Torsional, and In-Phase Loading

open access: yesAdvances in Materials Science and Engineering, 2020
In this study, several estimation methods of fatigue properties based on different monotonic mechanical parameters were first discussed. The advantages and disadvantages of the Hardness Method proposed by Roessle and Fatemi were investigated and improved
Ernian Zhao   +3 more
doaj   +1 more source

Testing of Sinters Made of Copper Powders Coated with Carbon Structure Containing Graphene [PDF]

open access: yesProblemy Mechatroniki, 2021
This paper presents the results of preliminary tests on specimens made from mixtures of dendritic copper powder (CuE) with the graphene-coated copper powder (CuG) in a range from 20% to 100% (CuG).
Kamil RAJKOWSKI, Tomasz MAJEWSKI
doaj   +1 more source

FEM Analysis for Brinell Hardness (The Effect of Inelastic Material Constants on Brinell Hardness).

open access: yesTRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A, 1999
This paper describes the effect of elastic-plastic material constants on Brinell hardness. Finite element analyses simulating Brinell hardness were carried out by varying Young's modulus, yield stress and work hardening coefficient and exponent. Meyer's rule, P=kdm, was confirmed to hold by the analyses but the constants k and m were functions of the ...
HAMADA, Naomi, SAKANE, Masao
openaire   +2 more sources

Investigation of themicrostructure, hardness, and compressive properties of TaC-reinforced lamellar graphite cast irons

open access: yesEuropean Mechanical Science, 2023
Tantalum Carbide (TaC) reinforcement was made to lamellar graphite (gray) cast irons that were produced in the physical conditions of a foundry at reinforcement ratios of 0%, 0.025%, 0.155%, and 0.285%.
Rifat Yakut, Ömer Çiftçi
doaj   +1 more source

Rockwell Hardness Testing of Pure Nickel Collimators for BNCT Application

open access: yesASEAN Journal on Science and Technology for Development, 2019
In this study, Rockwell and Brinell hardness testing was used to examine material hardness. These methods were chosen because they are easy to carry out, relatively inexpensive, and almost all sizes and shapes can be tested, in which nickel hardness ...
Erasmus Prakasita   +2 more
doaj   +1 more source

SIFAT MEKANIK BAHAN KOMPOSIT KAMPAS REM BERBAHAN DASAR SERBUK ARANG KULIT BUAH MAHONI

open access: yesSpektra: Jurnal Fisika dan Aplikasinya, 2017
Mahogany bark is one of natural material which not used optimally in society. The overabundance of mahogany bark appearing new problem of garbage which charges an alternative solution creatively and innovatively becomes a new efficient and effective ...
Herwidhi Tri Prabowo   +3 more
doaj   +1 more source

EURAMET supplementary comparison between INRiM, UME and PTB in Brinell hardness scales (HBW1/30 - HBW2.5/187.5) - EURAMET.M.H-S2.a [PDF]

open access: yes, 2021
This report describes a EURAMET supplementary comparison in Brinell hardness scales of three national metrology institutes of Italy, Turkey and Germany; INRiM, UME and PTB, respectively.
Menelao, F   +4 more
core   +1 more source

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