Báo cáo vật lý: "Effect of Temperature on Corrosion Behavior of AISI 304 Stainless Steel with Magnesium Carbonate Deposit" docx

... of temperature on the corrosion behavior of AISI 304 stainless steel with MgCO3 deposit has been studied. The oxidation rates were found to be influenced by both of time of exposure and temperature. ... *Corresponding author: habsah70@streamyx.com Abstract: The effect of temperature on corrosion behavior of AISI 304 stainless steel was investigated in the presence of magnesium carbonate (MgCO3) ... as the concentrations of carbonates ions.4 Several works have been reported5–6 on the studies of deposits on the AISI 304 alloy. However, the study on the carbonate deposit at high temperature...

Báo cáo vật lý: "Effect of Blowing Agent Concentration on Cell Morphology and Impact Properties of Natural Rubber Foam" ppt

... the concentration of sodium bicarbonate (4, 8, 10, and 12 phr), which was used as a blowing agent, at a fixed processing time and temperature. The influence of the sodium bicarbonate concentration ... Concentration (phr)Average Cell Size (mm) Figure 3: Effect of blowing agent concentration on average cell size. Effect of Blowing Agent Concentration 22 Figure 4: Micrographs of natural ... Agent Concentration (phr)Number of Cells Per Unit Volume (cm-3) Figure 2: Effect of blowing agent concentration on number of cells per unit volume. 00.511.52481012Blowing Agent Concentration...

Báo cáo vật lý: "Effect of Filler Incorporation on the Fracture Toughness Properties of Denture Base Poly(Methyl Methacrylate)" pptx

... matrixPMMA + 10 wt%Volume fraction12Effect of Filler Incorporation on the Fracture Toughness Properties 23. Leong, Y. W. (2003). Characterization of talc and calcium carbonate filled polypropylene ... Effect of filler content on the fracture toughness of the PMMA matrix containing 10 wt% BaTiO3. 3.2 The Effect of SBF Exposure on Fracture Toughness The mechanical properties of denture-base ... 10Effect of Filler Incorporation on the Fracture Toughness Properties 4. CONCLUSION The general behaviour of the tested materials showed that the dry samples provided higher values of fracture...

Báo cáo vật lý: "Effect of Treated and Untreated Filler Loading on the Mechanical, Morphological, and Water Absorption Properties of Water Hyacinth FibersLow Density Polyethylene Composites" pdf

... (phr)Elongation at break (%)Untreated FibersTreated Fibers Figure 3: Effect of filler loading on the elongation at break of the LDPE/WHF composites with untreated and treated WHF. Effect of ... group of the cellulose reacted with the functional group of the coupling agent, which in turn bonded to the polymer matrix and thus established a good fiber/matrix bonding interaction. Consequently, ... of having hydroxyl groups come into contact with water molecules was reduced. Table 2 shows the effect of fiber loading on the water sorption constants n and k. Table 2: The dependence of...

Báo cáo vật lý: "EFFECT OF FIELD STRENGTH IN THE VELOCITY ANISOTROPY OF FERROFLUIDS" pptx

... magnetization of molecules of a paramagnetic gas. The respective expression, in the case of magnetic fluids, is fulfilled on the assumption of the absence of magnetic or electric dipole interaction ... Variation of U with field strength. changes in the trend of the sound velocity. The visual observation of the sample also reveals no precipitation/sedimentation. The increase of sound ... Skumiel et al.23 concluded that at equilibrium, the magnitude of the magnetization is a function of the strength of external magnetic field, the volume concentration of the magnetic particles...

Báo cáo vật lý: "Conductive Polymer Based on Polyaniline-Eggshell Powder (PANI-ESP) Composites" ppsx

... layer adsorption andgave a curve that describes the fraction of the surface area of the adsorbent covered with solute as a function of the concentration of the solute in the contacting liquid ... Conductivity The polymer backbone in the PANI-ESP conducting polymers consists of a π-conjugated chain. The overlap of π-electrons is called conjugation because it leads to a sequence of ... that there are agglomerations of ESP on the surface of the sample. Agglomeration with PANI makes the connection of the conductive path more complete and improves conductivity.6,20 A rougher...

Báo cáo vật lý: "Protonation and Complexation Approaches for Production of Protic Eutectic Ionic Liquids" ppsx

... reserved for ionic melts with melting points below room temperature. ILs form liquids that consist only of cations and anions. ILs are usually characterised by a reasonable ionic conductivity ... compared to common organic solvents. Journal of Physical Science, Vol. 21(1), 15–28, 2010 17 of ILs. For that reason, the concept of hybrids protonation, and the complexation of nitrogen-based ... due to hydrogen bonding interactions between the complexing agent and the anions. Because it consists of nitrogen cations and anions, these structures separate cations from anions owing to the...

Báo cáo vật lý: "A Chemical Study on Phyllanthus reticulatus" pdf

... Desmodium styracifolium. Hongkong: Chinese University of Hong Kong Press, 675–680. 6. Appleton, R.A. & Enzell, C.R. (1971). Triterpenoids and aromatic components of deertongue leaf. Phytochemistry, ... from the seeds of bark of Heritiera utilis13 and Euphorbia lateriflora.14 4. CONCLUSION The isolation and identification of compound (1), (2) and (3) from the leaves of P. reticulatus ... 1. INTRODUCTION The Phyllanthus genus contains species which have useful medicinal applications. A considerable number of these species have been examined and some effective constituents...

Báo cáo vật lý: "Compatibility, Mechanical, Thermal, and Morphological Properties of Epoxy Resin Modified with Carbonyl-Terminated Butadiene Acrylonitrile Copolymer Liquid Rubber" pps

... 10 15 20 25Tg (°C) CTBN content (phr) Figure 1: The effect of CTBN content on the glass transition temperatures (Tg) of the EP. Journal of Physical Science, Vol. 20(1), ... increased with an increase of the CTBN content. The gel and cure temperature values for all of the CTBN modified epoxy samples are higher than those of the unmodified EP. The glass transition temperatures ... DISCUSSION 3.1 Reactivity Table 1 shows the effect of the CTBN content on the reactivity of the EP. In the CTBN/EP/IPD system, gel time and cure time increased with increasing rubber content....

Báo cáo vật lý: "LATTICE DYNAMICS AND NORMAL COORDINATE ANALYSIS OF HTSC Tl2Ba2Cu1O6" potx

... well with the available Raman and infrared frequencies. The calculation reveals not only the phonon frequency in the center of the Brillouin zone but also supports the strong electron-phonon ... spectra of the superconducting cuprate perovskites MBaCu2O2 (M = Nd, Er, Dy, Tm and Eu) and reported the possible origins of phonon softening and the systematic variation of phonon frequencies ... Parameters of the model: a, b are Born-Mayer constants; Z, Y, K are ionic charge, shell charge and on- site core-shell force constant of the ion; Va is the volume of the unit cell Interaction a...

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