Results 121 to 130 of about 9,420,307 (342)

Hydrogen‐Assisted Fracture of Iron‐Based Fe–Ni–Al Alloys

open access: yesAdvanced Engineering Materials, EarlyView.
Principal relations and fracture mechanisms of single‐phase and precipitate‐strengthened Fe–Ni–Al alloys subjected to prior electrochemical hydrogen charging are identified. The mechanisms of hydrogen effect on strength and microhardness are discussed, including hydrogen‐induced increase in microhardness and the role of hydrogen in fracture behavior ...
Nataliya Yadzhak   +3 more
wiley   +1 more source

Response of lead-acid batteries to chopper-controlled discharge: Preliminary results [PDF]

open access: yes
The preliminary results of simulated electric vehicle, chopper, speed controller discharge of a battery show energy output losses up to 25 percent compared to constant current discharges at the same average discharge current of 100 amperes.
Cataldo, R. L.
core   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter   +9 more
wiley   +1 more source

Temperature-controlled microwave electrodeless discharge lamps

open access: yes, 1976
Imperial Users ...
Bartley, David Francis   +1 more
openaire   +1 more source

????????? ??????-?????? ???????????? ?????? ?????? ????????? ????????? [PDF]

open access: yes, 2018
Department of Energy Engineering (Battery Science and Technology)Aprotic electrolyte based lithium-oxygen batteries are of considerable interest due to its ultrahigh theoretical specific energy density (1675 mAh per gram of oxygen) against the present ...
Cha, Aming
core  

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

open access: yesAdvanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan   +8 more
wiley   +1 more source

Nanoparticle synthesis in pulsed low temperature discharges [PDF]

open access: yes, 1996
Silicon nitride powders with an average size as low as 7 nm are synthesized in a pulsed radio frequency glow discharge. The as-synthesized silicon nitride powder from a silane/ammonia plasma has a high hydrogen content and is sensitive to oxidation in air.
openaire   +2 more sources

Assesing the hydrogeological functioning of an evaporite karst system coupling tritium and physicochemical data [PDF]

open access: yes, 2019
Discharge rate, electrical conductivity and water temperature have been continuously recorded in an evaporite karst spring located in S Spain and 3H determinations of spring water were performed.
Andreo-Navarro, Bartolome   +3 more
core  

Evaluation of Plasticity and Creep Parameters From Tensile Stress–Strain Data for a Range of Strain Rates

open access: yesAdvanced Engineering Materials, EarlyView.
This plot compares experimental tensile stress–strain curves (with 4 different strain rates) and corresponding modelled curves (obtained using the optimised sets of Voce and Miller–Norton parameter values shown). The inferred M‐N values, characterizing the creep, are very similar to those obtained via conventional creep testing.
S. Ooi, R. P. Thompson, T. W. Clyne
wiley   +1 more source

Study on the temperature uniformity of lithium batteries based on gradient porous metal foam saturated liquid cooling plate

open access: yesCase Studies in Thermal Engineering
To improve the thermal management and temperature uniformity of lithium-ion batteries, this study proposes and evaluates a novel liquid cooling plate structure featuring gradient porous metal foam (GPFM).
Wenhao Li   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy