Results 111 to 120 of about 4,227,955 (306)

UNIFIED THERMAL SHOCK RESISTANCE OF ULTRA-HIGH TEMPERATURE CERAMICS UNDER DIFFERENT THERMAL ENVIRONMENTS

open access: yes, 2014
The thermal shock resistance (TSR) of the ultra-high temperature ceramic (UHTC) plate under convective environments is studied. The critical failure temperature difference has a danger temperature range about the thermal shock initial temperature ...
Zhang, Chuanzeng   +3 more
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

open access: yesAdvanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios   +5 more
wiley   +1 more source

Development of a thermal sensor for probing small volumes [PDF]

open access: yes, 2012
This thesis presents the design, fabrication and characterisation of a thermal micro-sensor capable of operating on small scale samples. It was initially characterised by measuring the thermal conductivity of 100 μl liquid droplets and thin materials ...
ATHERTON, JOSEPH,JAMES
core  

Experimental investigation of silver nano-fluid on heat pipe thermal performance

open access: yes, 2013
Nano-fluid is employed as the working medium for a conventional 211 μm wide × 217 μm deep grooved circular heat pipe. The nano-fluid used in this study is an aqueous solution of 35 nm diameter silver nano-particles.
Kang, Shung-wen   +1 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

A Novel Thermal Module with 3-D Configuration Pulsating Heat Pipe for High-Flux Applications

open access: yesEnergies, 2018
A pulsating heat pipe (PHP) contains a wickless design with aligned serpentine tube configuration whose simple structure offers a comparatively easy manufacturing capability. The bends with large curvature are often used for serpentine PHPs.
Chih-Yung Tseng   +4 more
doaj   +1 more source

Experimental investigations of thermal conductivity, thermal degradation and fire resistance of rigid polyurethane foams filled with nano calcite and intumescent flame retardant

open access: yes, 2015
In this study, nanocalcite and intumescent flame retardant material composed of ammonium polyphosphate and pentaerythritol were filled in rigid polyurethane foams up to 15 % in mass.
Usta, Nazım, Aydogan, B
core  

Low‐Temperature Imidization of Polyimides (PI) for Scalable Manufacturing of Flexible Wearable Electronics

open access: yesAdvanced Engineering Materials, EarlyView.
Low‐temperature imidization of PEG‐modified polyimide enables fully screen‐printed, roll‐to‐roll fabrication of flexible electrodes on PET substrates, delivering robust mechanical durability and reliable ECG/EMG signal performance for wearable electronics.
Akib Abdullah Khan, Jong‐Hoon Kim
wiley   +1 more source

Volcanic crop soil physicochemical characterization in semi-arid and temperate climates: two Mexican case studies

open access: yesEnvironmental Research Communications
In this work, two crop soils were characterized: Querétaro (Bajío) and the State of Mexico (Edomex). Both states are part of the Sierra Madre Occidental, where temperate and subhumid climates are experienced. The surface soils are predominantly Leptosols
O A Luévano-Rivas   +3 more
doaj   +1 more source

A Knowledge‐Based Approach for Understanding and Managing Additive Manufacturing Data

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing processes generate a large amount of data. Effectively managing, understanding, and retrieving information from this data remains a major challenge. Therefore, we propose an ontology‐based approach to integrate heterogeneous data, enable semantic queries, and support decision‐making.
Mina Abd Nikooie Pour   +5 more
wiley   +1 more source

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