Results 21 to 30 of about 29,052 (189)

Pengaruh Filler Pada Pengelasan Tig Baja Karbon dan Stainless Steel 316l Terhadap Sifat Mekanik

open access: yesQuantum Teknika, 2020
In the manufacturing industry, the integration of different types of material is needed. The dissimilar metal welding of two different material were required suitable filler types.
Zuhri Nurisna, Estu Setiawan
doaj   +1 more source

On the Relation between the Vickers Hardness Numbers and the Face Angles of Pyramidal Indenters

open access: yesBulletin of JSME, 1959
Vickers hardness numbers of 45 test specimens have been measured by 4 pyramidal indenters with different magnitudes of face angles (angles between opposite faces of pyramids), in order to find the relation between the Vickers hardness numbers Hv and the magnitudes of the face angles θ. Then, this relation was formulated in a mathematical form, in which
Takeo YOSHIZAWA, Hideo NAGAO
openaire   +3 more sources

Grain refinement and mechanical properties for AISI304 stainless steel single-tracks by laser melting deposition: Mathematical modelling versus experimental results

open access: yesResults in Physics, 2021
Many of the significant mechanical properties of stainless steel, including ultimate tensile strength, yield strength and hardness, the ductile–brittle transition temperature, and susceptibility to environmental embrittlement, can be improved by grain ...
Muhammad Arif Mahmood   +6 more
doaj   +1 more source

Highly processable bulk metallic glass-forming alloys in the Pt–Co–Ni–Cu–P system [PDF]

open access: yes, 2004
Highly processable bulk metallic glass alloys in the Pt–Co–Ni–Cu–P system were discovered. The alloys show low liquidus temperature below 900 K, excellent processability with low critical cooling rate reflecting in maximum casting thicknesses in quartz ...
Johnson, William L., Schroers, Jan
core   +1 more source

Comparative Evaluation of the Surface Hardness of Monochrome Composite and Conventional Composite after Immersion in Food-simulating Liquids: An In Vitro Study [PDF]

open access: yesInternational Journal of Prosthodontics and Restorative Dentistry
Purpose: To compare the surface hardness of monochrome (single shade) and conventional composite resins after exposure to food-simulating liquids. Materials and methods: A total of 50 disk-shaped specimens of composite resin (n = 25 estelite alpha and n =
Hala A Bahgat, Neveen M Ayad Hanna
doaj   +1 more source

The Rhyming Peg Mnemonic Device Applied to Learning the Mohs Scale of Hardness [PDF]

open access: yes, 2003
NOTE: This is a large file, 55.7mb in size! This article describes the use of the rhyming peg mnemonic device to teach Moh's scale of hardness. The "pegs" consist of a set of words, each rhyming with a number from one to ten, to which the mineral names ...
Audrey Rule
core   +1 more source

Structural, elastic, and electronic properties of newly discovered Li2PtSi3 superconductor: Effect of transition metals

open access: yes, 2016
First-principles calculations within the density functional theory (DFT) with GGA-PBE exchange-correlation scheme have been employed to predict the structural, the elastic and the electronic properties of newly discovered lithium silicide superconductor,
Alam, M. A.   +7 more
core   +2 more sources

Hardness measurement [PDF]

open access: yes, 2014
Tvrdost je jedna z nejdůležitějších vlastností materiálů. Pro měření a vyhodnocování tvrdosti existuje velké množství metod. Každá má svoje opodstatnění, oblast použití, výhody a nedostatky. Nejpoužívanějšími metodami měření tvrdosti jsou metody vnikací (
Tušla, Jan
core  

Laser Powder Bed Fusion of Copper–Tungsten Composites for Heat Sink Applications in High‐Power Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
This article demonstrates the successful qualification of a copper–tungsten composite for laser powder bed fusion. The resulting components exhibited high density, high thermal conductivity, and reduced thermal expansion. Heat sinks with complex geometries were successfully manufactured, clearly showcasing the material's potential for additive ...
Simon Rauh   +6 more
wiley   +1 more source

Cinnamaldehyde is a biologically active compound for the disinfection of removable denture: blinded randomized crossover clinical study

open access: yesBMC Oral Health, 2020
Background Fungal infections associated with the use of dentures, like denture stomatitis, are difficult to prevent and treat. This in situ study aimed to investigate the efficacy of cinnamaldehyde for the disinfection of complete removable dentures, and
Marco Antônio Lavorato de Almeida   +8 more
doaj   +1 more source

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