Results 131 to 140 of about 149,344 (340)

Partitioning and Coarsening Dynamics of Precipitate‐Strengthened Cr‐Si Alloys: The Role of Ge, Pt, and Mo

open access: yesAdvanced Engineering Materials, EarlyView.
The microstructure of Cr‐rich Cr‐Si‐alloys is maintained by alloying with Ge, Pt, and Mo. The effects of these elements on A15‐phase fraction, partitioning, microstructural stability, grain size, and hardness are combinable. Molybdenum is found to be the most promising alloying element for microstructural stability during high‐temperature exposure.
Anke Silvia Ulrich   +6 more
wiley   +1 more source

Enhanced Electrochemical Properties of Biobased Activated Carbon for Supercapacitors

open access: yesAdvanced Engineering Materials, EarlyView.
Biobased activated carbons with diverse properties (pore size distribution, electrical conductivity, capacitance) for supercapacitors applications are synthesized and tested, using renewable biomass as versatile raw materials with disparate inherent heteroatom and molecular building blocks.
Shengfei Zhou   +4 more
wiley   +1 more source

A Perspective on Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed Stainless Steels

open access: yesAdvanced Engineering Materials, EarlyView.
This perspective article explores an innovative powder metallurgical approach to producing high‐nitrogen steels by utilizing a mixture of stainless steel and Si3N4. This mixture undergoes hot isostatic pressing followed by direct quenching. The article also examines adapting this method to laser powder bed fusion (PBF‐LB/M) to overcome nitrogen ...
Louis Becker   +5 more
wiley   +1 more source

Determinación de la presencia de nitratos/nitritos y manganeso en el agua proveniente del pozo que alimenta la zona baja del cantón Huaquillas

open access: yesCiencia UNEMI, 2017
The objective of this research was to determine the levels of nitrates, nitrites and manganese in thewaterfromthe "Parador Turístico" well; in additionthe presence of pathogens and its influence on the health of theinhabitants of the La Primavera ...
Román-Samaniego , Oscar   +4 more
doaj  

Dimensionless Investigations on Energy Conversion and Analysis of Interlayer Time in Laser‐Based Powder Bed Fusion of Polymers for Polyamide 12 with Nanoadditives and Polypropylene

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the energy conversion in powder bed fusion of polymers using laser beam for polyamide 12 and polypropylene powders. It combines material and process data, using dimensionless parameters and numerical models, to enable the prediction of suitable printing parameters.
Christian Schlör   +9 more
wiley   +1 more source

Autonomous Sensor Exchange and Calibration for Cornstalk Nitrate Monitoring Robot [PDF]

open access: yesarXiv
Interactive sensors are an important component of robotic systems but often require manual replacement due to wear and tear. Automating this process can enhance system autonomy and facilitate long-term deployment. We developed an autonomous sensor exchange and calibration system for an agriculture crop monitoring robot that inserts a nitrate sensor ...
arxiv  

Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed FeCr(Si)N Stainless Steel

open access: yesAdvanced Engineering Materials, EarlyView.
The alloying element Nitrogen enhances stainless steel strength, corrosion resistance, and stabilizes austenite. This study develops austenitic FeCr(Si)N steel production via powder metallurgy. Fe20Cr and Si3N4 are hot isostatically pressed, creating an austenitic microstructure.
Louis Becker   +5 more
wiley   +1 more source

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