Materials Literature
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The impacts of multi-monomers melt grafting blends of maleic anhydride(MAH) and Styrene (St) on the crystallization behavior, morphology and mechanical properties of PA1010/ABS/PP blends were studied through the methods of SEM,themal analysis, mechanical properties analysis. The results showed that the graft copolymer…
To enhance the water solubility and inhibition efficiency of 2-phenyl-imidazoline, a type of imidazolinylquaternary-ammonium-salt（IMA）was synthesized from 2 - phenyl-imidazoline and benzyl chloride.And then the compound inhibitor was manufactured with IMA, potassium iodide, triethanolamine, polyoxyethylene ether and p…
Particle-like MgO powders were first prepared using LiCl as reaction medium, MgCl2·6H2O and CaCO3 as reaction materials. Soaked them by PEG and PEG-EDTA solution, different Mg(OH)2 precursors were formed, which morphologies were fiber-like via PEG and tetrahedron-like via PEG-EDTA . Re-heated at 600 , Mg(OH)2 was deco…
The morphology and growth of the intermetallic compound (IMC) formed between liquid Sn-9Zn eutectic solder alloy and Cu at 220-260°C was investigated. Experimental results showed that γ-Cu5Zn8 was present at the Sn-9Zn/Cu interface as the reaction product. The IMC layer growth follows the parabolic-growth law, which i…
Activated carbons with good spherical shape were prepared from polystyrene-derived ion exchange resin D001 having various divalent cations of Mg2+, Mn2+, and Fe2+ by CO2 activation at 800 °C for 1.0 h. The resins having univalent cation such as Na+ became fragmentized after activation, which can be attributed to their…
Spheroidal graphite was obtained by direct quenching iron melt atfter spheroidization and inoculation procedures. The morphology and the effects of trace elements on the formation of spheroidal graphite were investigated by scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX) spectroscopy. Results ind…
The dynamic-static method is used for study on the formation of the biofilm on pipe surface and the relationship between the biofilm and the induction time of the biofouling. The biofilm of slime forming bacteria on the surface of the copper electrodes is characterized by Electrochemical Impedance Spectroscopy (EIS) o…
The flame retardant mechanism of magnesium hydroxide sulfate whiskers(MHSH) is analysed and MHSH and magnesium hydroxide are used to fill high-density polyethylene(HDPE) respectively. The mechanical and flame resistance properties of composite material (HDPE) were also studied in this paper contrastively. The tensile…
Department of Physics, Emory University, Atlanta, GA 30322(Dated: May 17, 2011)We experimentally study the shear flow of oil-in-water emulsion droplets in a thin sample cham-ber with a hopper shape. In this thin chamber, the droplets are formed into quasi-2D pancakes,somewhat analogous to soft photoelastic disks. From…
A homometallic mixed-ligand complex Pb(BTA)(phen)·H2O was synthesized by taking hydrated N,N′-bis(1H-tetrazolyl)amine (H2BTA·H2O), 1,10-phenanthroline (phen) and PbCl2 as starting materials during this work. The complex was characterized by elemental analysis, IR, UV-Vis, FS and X-ray single-crystal diffraction. The r…
In this paper two types of oil-paper samples are thermally aged in two temperatures of 120. The samples are constituted by 25# oil, 45# oil and paper. Some aging indicators are measured during the aging process. Three parameters are measured during the aging process. The insulating ability of paper can be evaluated by…
Aluminium titanate, Al2TiO5 (AT) with the pseudobrookite structure is the only compound in the alumina-titania system. It is an excellent refractory and thermal shock resistant material due to its relatively low thermal expansion coefficient (1 ´10-6 °C –1) and high melting point (1860°C). However, its low mechanical…
Smooth thin films of three metal(II) complexes were prepared by spin-coating process from 2,2,3,3- tetrafluoro-1-propanol solution and characterized atomic force microscopy (AFM). In order to examine their possible use as blu-ray recording media, the spin-coated films of the metal(II) complexes on K9 glass substrate w…
By adding ZrO2 and Y2O3 powder blend into the thermit, large bulk Al2O3/ZrO2 (Y2O3) eutectics were prepared by combustion synthesis under high gravity, and the influences of high gravity on microstructures, crystal growth and properties of the materials were also discussed. The XRD patterns showed that the introductio…
Nearly stoichiometric TiNx films were deposited on Al2O3 substrates by laser enhanced chemical vapor deposition (CVD) with tetrakis (diethylamido) titanium (TDEAT) and ammonia as the source materials. Emphases were given on the effects of laser power (PL) and pre-heating temperature (Tpre) on the composition and depos…
For its two unique properties of superelasticity and shape memory, nitinol is widely used in medical applications. Traditionally, most nitinol stents are normally heat set at 485°C, which induces the formation of the Ni-rich second phases such as Ti2Ni3 and Ti3Ni4, increases the austenite finish temperature and reduce…
A novel amphiphlic adsorbent resin of macroporous polystyrene Validamycin A was synthesized via the amination of chloromethylated macroporous crosslinked polystyrene resin using Validamycin A. Its chemical structure was characterized by Fourier transformation infrared spectra and elemental analysis. Its pore structure…
Silicon oxide thin films have many excellent properties such as hardness, optical,dielectric properties,wear-resistance and corrosion-resistance. It has been widely used in optical and microelectronic applications. The preparation methods mainly include phsical vapor deposition and chemical vapor deposition.The paper…
Mesoporous silica (MPS) has been synthesized by using biodegradable gelatin and anionic surfactant sodium dodecylsulphate (SDS) as a dual-template. The mesostructures of MPS were characterized by N2 adsorption-desorption isotherms and transmission electron microscopy (TEM). The MPS was chosen as support for immobiliza…
In this letter, a simple method was applied to fabricate different morphologies of CuS particles. The ratio between CuSO4 and thiourea played an important role in preparing various CuS particles such as nest-like, cabbage-like and cauliflower-like structures. Further, the formation mechanism of CuS was proposed that t…