نتایج جستجو برای: isoconversional methods
تعداد نتایج: 1874444 فیلتر نتایج به سال:
Separating cathode material and Al foil from spent lithium-ion batteries (LIBs) is a critical step for LIBs recycling. As compared to chemical dissolving decomposition, the pyrolysis pretreatment an alternative simple method. In this work, kinetics of were comparatively studied using various isoconversional methods, including Flynn-Wall-Ozawa (FWO), Friedman, Kissinger-Akahira-Sunose, Starink, ...
in reality, most structures involved in geotechnical engineering are three dimensional in nature, and although in many, plane strain or axisymmetric approximations are reasonable, there are some, for which 3-d treatment is required. the quantity of data, and the size of the various vectors and matrices involved in such analysis, increase dramatically. this has sever implications for computer r...
This study investigated the effects of layered clay on the thermal curing behavior and tensile properties of resole phenol-formaldehyde (PF) resin/clay/cellulose nanocomposites. The thermal curing behavior of the nanocomposite was characterized using conventional differential scanning calorimetry (DSC) and temperature modulated (TMDSC). The addition of clay was found to accelerate resin curing,...
all analytical methods are generally based on the measurement of a parameter or parameters which are somehow related to the concentration of the species.an ideal analytical method is one in which the concentration of a species can be measured to a high degree precision and accuracy and with a high sensitivity. unfortunately finding such a method is very difficult or sometimes even impossible.in...
Ionic liquid-based N-octadecyl-N'-octadecyl imidazolium iodide functionalized layered double hydroxide (LDH-IM) was synthesized for manufacturing high-performance epoxy nanocomposites. Nonisothermal differential scanning calorimetry (DSC) performed to study cure kinetics of reinforced قث with LDH and LDH-IM. Incorporation Mg-Al-CO3 into hindered the curing reaction, as detected by dimensionless...
Considering their increasing use in high-temperature aeronautical applications, thermoplastic-based laminates have to meet certification requirements terms of critical service conditions (e.g. aircraft engine's fire). This work is aimed at identifying the most relevant approach model isothermal decomposition C/PPS composites. The first step understanding thermal these materials relies on TGA an...
In the present work, kinetic and thermodynamic analysis of ficus wood was carried out using thermogravimetric (TGA). Thermal degradation has been evaluated under dynamic conditions from 373 K to 1173 at heating rates 5, 10, 20, 50 K.min?1. The performed isoconversional methods (Friedman (FR), Flynn-Wall-Ozawa (FWO) Vyazovkin (VYA)) integral master-plots method estimate triplets. data were used ...
A characteristic of granulated LTA and SOD zeolites is given. It was determined that zeolite particles have a cube shape with size ~2 μm; an irregular 0.5–1 μm. The dimension the coherent scattering region calculated to be 760 nm for 453 SOD. specific surface area 115 m2·g–1 141 m2·g–1. Static tests showed maximum quantity absorbed water vapor ~30 wt.%, ~20 wt.%. found provide adsorption from g...
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