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in the 900 ℃-heated films only when the annealing heating rates are 15 and 25 ℃/min.The 500 ℃-annealed film possessed the most compact surface morphology in the case of 25 ℃/min.The highest microhardness...Effects of the Annealing Heating Rate on Sputtered Aluminum Oxide Films唐秀凤School of Applied Physics and Materials, Wuyi UniversityState Key Laboratory of Solidification Processing,School of Materials......
, annealed at 200-1 000 ℃ for 0-240 min with different heating rates, were investigated by optical microscopy, scanning electron microscopy, Epstein frame, and transmission electron microscopy... the recovery, recrystallization and growth of grains. Additionally, the annealing temperature influences the magnetic properties more significantly than annealing time, and with the increase of heating-up......
be indexed to cubic spinel structure. The mass loss occurring above 650 ℃ during the heating process can be mostly gained during the cooling process. LiNi0.5Mn1.5O4 synthesized with an annealing treatment... at around 4.1 and 4.7 V and superior capacity retention upon cycling both at rates of 1/7C and 1C, though the capacity is not high. Key words: lithium ion battery; cathode material; LiNi0.5Mn1.5O4; annealing......
Microstructural evolution during ultra-rapid annealing of severely deformed low-carbon steel: strain, temperature, and heating rate effectsM.A.Mostafaei,M.KazeminezhadDepartment of Materials Science... and such an interaction. In this study, different levels of strain are applied to low-carbon steel using a severe plastic deformation method. Then, ultra-rapid annealing is performed at different heating......
of the sample. The yield strength rapidly decreases to 257.9 MPa when the annealing temperature is 1 050 ℃ and the heating time is 3 min. The tensile strength σb decreases as the annealing temperature...J. Cent. South Univ. (2012) 19: 1508-1516 DOI: 10.1007/s11771-012-1169-0 Softening interstage annealing of austenitic stainless steel sheets for stamping processes HAN Fei(韩飞)1, 2, 3, LIN Gao-yong(林高......
under different temperatures and heating rates. The results show that the higher the temperature, the lower the ultimate strength of the specimens. And the higher the heating rate, the higher the ultimate strength of the specimens. The high temperatures and high heating rates will induce microvoids in the specimens which make the specimens failure under relatively low loads. Key words: AZ31......
Microstructure and properties of 3D-printed alumina ceramics with different heating rates in vacuum debindingHe Li1,2,Yong-Sheng Liu1,2,Yan-Song Liu1,2,Qing-Feng Zeng1,Ke-Hui Hu3,4,Jing-Jing... id="ChDivSummary" name="ChDivSummary">The effect of heating rates during vacuum debinding on the microstructure and mechanical properties of alumina ceramics are discussed in this paper.The......
by differential scanning calorimetry. The continuous heating and isothermal annealing analyses suggested that the temperatures of glass transition and onset crystallization are heating rate-dependent in the supercooled liquid region. Then, the time-temperature-transformation diagram under different heating rates indicates that increasing the heating rate can lead to an increase of the incubation time......
in the sputtering atmosphere and of the post-deposition annealing temperature in air. A structural analysis was carried out using Raman spectroscopy and X-ray diffraction. Optical and electrical characterizations were performed using photo-spectrometry and Hall effect measurements,respectively. The films grown at room temperature and low oxygen pressures reached high deposition rates of above 45 nm/min......
