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761
Effects of Hydrogen Dissociation During Gas Flooding on Formation of Metal Hydride Cluster Ions in Secondary Ion Mass Spectrometry
Published 2024-10-01“…Dissociation of H<sub>2</sub> up to 30% resulted in a significant increase in the intensity of the metal hydride cluster secondary ions originating from the metallic samples. Comparison of the time scales of possible processes provided insight into the mechanism of hydride cluster secondary ion formation. …”
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762
Obtaining Martensitic Structures during Thixoforming of Hypoeutectic Gray Cast Iron
Published 2015-01-01“…This study intended to investigate conditions required to obtain martensite in hypoeutectic gray cast iron at 3.1% CE (carbon equivalent) deformed in the semisolid state. Samples heated up to 1130, 1135, and 1145°C (liquid fractions of 10, 30, and 45%) were compressed into platens without any holding time (0 s). …”
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763
Thermodynamic Simulation of Precipitation Phase Evolution in 2324 Aluminum Alloy by Jmat Pro
Published 2021-12-01“…The results show that the phase composition of 2324 aluminum alloy at room temperature is 88.02% α(Al), 7.28% S(Al2CuMg), 2.45% Al6Mn, 1.35% Al2Cu, 0.63% E(AlCrMgMn) and 0.27% Mg2Si, among which S phase is the main strengthening phase.The metastable phase of the alloy is S′ phase, Q′ phase and η′ phase, among which S′ phase is the main strengthening phase during the aging process.The TTT curve calculation show that during the heat treatment, the tip temperatures of GP zone, η′, S′, η(MgZn2) and S phase increase successively, which are 170℃, 300℃, 350℃, 360℃ and 420℃ respectively, and the corresponding incubation times are 5.45s, 40.91s, 15.23s, 920.62s and 305.83s respectively The CCT curve calculation shows that the critical cooling rates of GP zone, η′, S′, η(MgZn2) and S phase without precipitation during heat treatment are 0.95℃/s, 1.72℃/s, 5.22℃/s, 0.16℃/s and 0.90℃/s respectively.When aging at 190℃, the precipitation amount of S′ phase is larger, and the complete aging time is shorter.When the aging time is 5~10h, the strengthening phase content is higher, and there is also a certain content for GP zone.Therefore, by the above results, the optimal heat treatment process can be obtained: the cooling rate of the cooling medium is greater than 5.22℃/s in the solid solution treatment, the solid solution transfer time of the sample is less than 5.45s, and the aging temperature and time are respectively set at 190℃ and 5~10h.…”
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764
Microphysical properties of refractory black carbon aerosols for different air masses at a central European background site
Published 2025-08-01“…Therefore, rBC coating volatility in winter is more influenced by emission sources, particularly residential heating, rather than atmospheric processes.</p>…”
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765
Single-phase equiatomic Co-Cr-Fe-Ni high-entropy alloy with excellent strain gauge sensitivity
Published 2024-11-01“…The annealing process changes the sample structure, resulting in an increase in the GF.…”
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766
Optimization of flammability and thermo-physiological comfort properties in fire-fighter's protective clothing using VIKOR technique
Published 2025-06-01“…The second-best sample was with 100 % Nomex fiber and Matt weave structure followed by the sample with 70 % Nomex and 30 % Protex fiber having Matt weave structure. …”
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767
Laser-induced organic agglomerates on 2D MoS2 during thermal treatment
Published 2025-01-01“…In this study, we investigate the real-time evolution of photoluminescence (PL) in MoS _2 samples modified with L63MS molecules during controlled thermal treatment, unveiling a unique laser-induced molecular agglomeration process. …”
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768
Reproducibility Assessment of Zirconia-Based Ceramics Fabricated out of Nanopowders by Electroconsolidation Method
Published 2025-04-01“…To fabricate specimens, a novel electroconsolidation method was used, ensuring a high heating rate, relatively low sintering temperatures, and short holding time. …”
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769
Smart materials: Material synthesis and characterization of CuAl based shape memory alloys
Published 2025-09-01“…The prepared samples exhibits a heterogeneous structure. The sample must undergo homogenization heat treatment. …”
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770
Real-time laser spot modulation in Laser Powder-Directed Energy Deposition via wobbling: A path to superior 316L stainless steel components
Published 2025-05-01“…Achieving high-quality Laser Powder-Directed Energy Deposition (LP-DED) components require the precise tuning of process parameters such as laser power, scanning speed, and laser spot size. …”
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771
Optimization of bioactive polyphenols recovery from Flammulina velutipes stem waste using nonionic surfactant-integrated ultrasound-assisted extraction
Published 2025-08-01“…The process of cultivating edible and medicinal mushrooms results in considerable biomass waste, which can be a rich source of bioactive compounds. …”
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772
Insights into the effects of biomass feedstock and pyrolysis conditions on the energy storage capacity and durability of standard biochar-based phase-change composites
Published 2025-01-01“…Therefore, the extent of PCM loading and energy storage density improvements primarily depends on the pyrolysis conditions, feedstock used, and pore size distribution of the biochar samples. This research provides insights into the fabrication of phase-change composites and optimization of the carbonization process of different biomasses used for thermal management applications, such as building energy savings. …”
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773
Multiple Approaches to Quantifying the Effective Porosity of Lacustrine Shale Oil Reservoirs in Bohai Bay Basin, East China
Published 2020-01-01“…The complicated relationship between WIP and NMR porosities may result from the heat-induced volatilization of moisture in pores during NMR tests, and countercurrent imbibition of water replacing the residual hydrocarbons during the saturation process for sample preparation in both tests. …”
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774
Mechanism of longitudinal bending fatigue failure of metal sandwich composite structures by laser welding
Published 2025-08-01“…However, compared with the traditional welding process, laser welding will introduce more complex welding defects between the panel and the web, which will seriously affect the fatigue properties of the structures. …”
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775
Development of the technology of «Mozzarella» goat cheese with specified functional properties
Published 2021-12-01“…The possibility of using goat milk in the production of cheeses with cheddaring and thermomechanical processing has been proven. Microscopic examination of a sample of Mozzarella cheese on ABT-5 sourdough has shown that bifidobacteria survive after heat treatment at high temperatures.…”
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776
Evolution of Microstructure and Crystallographic Texture in Severely Deformed FeCoNiAlTi Multicomponent Alloy
Published 2025-06-01“…The initial material was a hydrostatically extruded sample that underwent additional heat treatment. Before HPT deformation, the disks were heat treated at 1200°C for 5 mins. to relieve the stresses. …”
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777
Research on the influence of different antioxidants on the thermal behavior of coal spontaneous combustion
Published 2025-05-01“…Compared with original coal sample, thermal diffusivity and conductivity of antioxidant-treated coal sample are lower, and specific heat capacity is higher. …”
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778
Comparison of Urea and Citric Acid Complexing Agents and Annealing Temperature Effect on the Structural Properties of - and -Alumina Nanoparticles Synthesized by Sol-Gel Method
Published 2013-01-01“…A sol-gel method based on the Pechini process was used to synthesize different phases of alumina nanoparticles using a polymeric precursor with Aluminum nitrate. …”
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779
Novel phenolic resin hollow microspheres: Flame retardancy and toxicity reduction in thermoplastic polyurethane elastomer
Published 2021-09-01“…It has been found that comparing TPU/PHM-4 sample containing 4.0 wt% PHM with pure TPU, the peak heat release rate (pHRR) was reduced by 61.6%, the total smoke release (TSR) by 23.2%, and the CO production by 86.2%, respectively. …”
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780
Inverter for Installations with Intermittent Electricity Production
Published 2016-04-01“…The increase of releasing process of the heat is assured by original construction of radiators which forms the turbulent mode of cooling air flux. …”
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