Results 71 to 80 of about 10,597 (207)

Influence of grain size on the solid-state direct reduction of polycrystalline iron oxide

open access: yesCommunications Materials
Direct reduction of iron oxide using hydrogen offers a sustainable route to lower carbon emissions in steelmaking. Although iron oxide feedstocks consist of polycrystalline pellets, the influence of initial hematite grain size on direct reduction remains
Barak Ratzker   +4 more
doaj   +1 more source

The study of end milling temperature of low-alloy steel in coarse-grained and ultrafine-grained states

open access: yesFrontier Materials & Technologies
The paper presents the results of the study of the end milling temperature of low-alloy steel depending on the cutting modes and the type of crystalline structure. The experiment was carried out on a PROMA FHV-50PD universal milling machine.
Dmitry A. Rastorguev   +2 more
doaj   +1 more source

Microstructure and mechanical behavior of ultrafine-grained Ni processed by different powder metallurgy methods [PDF]

open access: yes, 2009
Ultrafine-grained samples were produced from a Ni nanopowder by hot isostatic pressing (HIP) and spark plasma sintering (SPS). The microstructure and mechanical behavior of the two specimens were compared.
Bui, H. -Q.   +3 more
core   +1 more source

Machine Learning‐Assisted Design of BaTiO3‐Based Superparaelectric High‐Entropy Ceramics with Superior Energy Storage

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study employed an adaptive iterative strategy combining machine learning algorithms, domain knowledge, experimental design, and experimental feedback to aim to precisely and quickly discover high‐entropy ceramics with excellent energy storage performance.
Haowen Liu   +4 more
wiley   +1 more source

Enhanced grain refinement of commercial pure copper using the ECAE of Al–Cu–Al tri-layer composite

open access: yesEngineering Science and Technology, an International Journal, 2016
Equal channel angular extrusion (ECAE) is a promising technique for production of ultrafine grained (UFG) materials of few hundred nanometers size. In this research, the grain refinement of copper strip is accelerated to ultrafine range by sandwiching it
B. Tolaminejad   +3 more
doaj   +1 more source

Correction to: Producing Bulk Ultrafine-Grained Materials by Severe Plastic Deformation [PDF]

open access: bronze, 2020
Р. З. Валиев   +5 more
openalex   +1 more source

Effect of processing on fracture toughness of silicon carbide as determined by Vickers indentations [PDF]

open access: yes
Several alpha-SiC materials were processed by hot isostatic pressing (HIPing) and by sintering an alpha-SiC powder containing boron and carbon. Several beta-SiC materials were processed by HIPing a beta-SiC powder with boron and carbon additions.
Dannels, Christine M., Dutta, Sunil
core   +1 more source

Static grain growth in an austenitic stainless steel subjected to intense plastic straining [PDF]

open access: yes, 2014
The post-dynamic recrystallization of an ultrafine grained 304-type austenitic stainless steel was studied during annealing at 800 and 1000°C for 7.5 to 480 minutes.
Belyakov, A.   +2 more
core   +1 more source

Perceived Educational Value of a Self‐Developed 3D‐Printed Pediatric Dentistry Simulator

open access: yesJournal of Dental Education, EarlyView.
ABSTRACT Purpose To design and assess a 3D‐printed pediatric dentistry simulator and to evaluate its perceived educational value and realism through student and expert feedback. Methods A maxillary simulator that is mountable on phantom heads was developed and produced by desktop stereolithography with single‐use inserts, enabling proximal caries ...
Michel Benyamin   +11 more
wiley   +1 more source

Progress in Rolling Mill Technologies

open access: yesУспехи физики металлов
There are a significant number of physical and chemical impact methods for the metallic materials during the processes of crystallization, deformation, and heat treatment, leading to the refinement of the structure.
I.E. Volokitina and V.V. Chigirinsky
doaj   +1 more source

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