Materials Literature
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Al8Mn5 alloy powder was prepared by vacuum levitation melting and high-energy ball milling, and the effect of tempering temperature on microstructure and microwave absorbing properties of powder were investigated by X-ray diffraction(XRD) and network vector analyzer. The results show that: the high-energy ball milling…
By dry-wet spinning of cellulose /[BMIM]Cl( 1-butyl-3-methylimidazolium chloride) solution and cellulose /[EMIM]Ac( 1-ethyl-3-methylimidazolium acetate) solution,three typical regenerated cellulose fibers with high-strength, fibrillation resistance, conventional strength were successfully prepared,respectively. The me…
The morphologies of surface defects on the new zirconium alloy plate were researched under the condition of cladding hot rolling process.Typical defects of the plate were observed by metalloscope.The component of defects was acquired by energy spectrum analysis.The removal method of the surface defects was proposed.Th…
Taking Hypsizygus marmoreus as material,the effect of four kinds of mineral elements such as KH2PO4,MgSO4,ZnSO4·7H2O,FeSO4·7H2O on Hypsizygus marmoreus mycelial growth were determined by solid plate colony cross the intersection.The results showed that the mycelial growth was obviously inhibited when the ZnSO4·7H2O co…
Three different types of aliphatic ionic liquids(namely, Pyrroles, piperidines, quaternary ammonium salts)and imidazoles aromatic ionic liquids were synthesized in this article. Oxygen reduction reaction on glassy carbon electrode in the four kinds of ionic liquids and the effect of electrochemical behavior on ionic l…
Particle material(PM)emission from a diesel engine was characterized.Effects of dielectric barrier discharge(DBD)reaction channels in a multilayer DBD reactor and discharge power on PM removal were investigated.Results showed that the temperature of exhaust gases and PM total number density increased with the increase…
Copper/aluminium laminated composites were produced by asynchronous roll and were annealed subsequently.Their microstructure and property were investigated by optical microscope(OM),scanning electron microscope(SEM)and tensile testing machine,respectively.The results reveal that the peel strength of the composite belt…
Objective To study the film-forming property of film-forming materials in dragon blood ethanol solution,and provide the reference for screening of film-forming materials for dragon blood plastics. Methods PVA124,PVA1788,PVP-K30,EC,MC,PVB were chosen to study the film-forming property of film-forming materials based on…
This article introduced the effect of ductile iron casting surface defects on the casting quality,formation mechanism and prevention measures.The causes of surface defect were studied in detail based on the gating system,melting and pouring process,molding sand,coating and so on.
Red phosphor Eu3+:Y2O3-3Si O2 materials were synthesized by a Sol-gel method and a combination of Sol-gel and precipitation method, respectively. The crystal structure and the luminescent properties of the prepared samples were characterized by DTA-TG, IR, XRD, TEM and excitation and emission spectra, respectively. Th…
Graphene shows a broad application prospect in the field of super capacitors thanks to its unique two-dimensional layered structure and excellent such physical properties as high electrical conductivity and large specific surface area.In this paper,the research progress of graphene-based materials for super capacitor…
Halloysite nanotubes( HNTs) were modified by aluminate coupling agent. The PET / m- HNTs composite membrane was prepared by modified halloysite nanotubes( m- HNTs) and PET through melt-blending method. The properties of PET,such as crystallization,mechanical and thermal stability,were influenced by the different conte…
The corrosion behavior of hydrostatically extruded tube AZ80 magnesium alloy in 0.1 mol/L Na2SO4 solution with pH value of 6.1 was investigated by immersion corrosion,weight loss corrosion,and electchemical methods.The results indicated that the corrosion resistance of AZ80 magnesium alloy decreesed because of small g…
N-[(2-hydroxy-3-trimethylammonium) propyl] chitosan chloride(HTCC) hydrogel microspheres were prepared by premix membrane emulsification and thermal gelation methods, using HTCC/α-β-glycerophosphate mixed system with the property of thermal gelation as water phase. The effects of preparation conditions on size distrib…
A urea-formaldehyde resin( UF) was prepared with high concentration formaldehyde. The structure characteristics and thermal mechanical properties of this UF were observed by13C-NMR and DMA. The results showed that this UF resin had high solid content and bonding strength of particle board improved 50%. And,the reactio…
The paper has studied the surface quality of glazes with various oxide concentrations. The results demonstrated that smooth glaze surface with fewer and small microscopic pinholes could be achieved if the O/(Si+Al) ratio is 2.240 ~ 2.443 and the surface tension is 380.62±2.26 m N/m when keeping the same firing process…
Objective To prepare TiO2/ glass flake composite particles in order to improve the interface properties of glass flake and the coating,and enhance the anti-penetration capability of the composite coating. Methods A layer of TiO2 film was prepared on the surface of glass flake by Sol- refluxing method,and the surface s…
In the present paper,the content of magnesia in 5XXX series aluminum alloy was determined by inductively coupled plasma atomic emission spectrometry(ICP-AES).The sample was digested by 20 mL dilute aqua regia medium to overcome the interference of matrix elements and other coexisting elements in the alloy then the con…
In order to improve the breaking strength of sodium alginate fibers,sodium alginate was modified with epichlorohydrin. Then the modified sodium alginate fibers were prepared using wet spinning method. The modified sodium alginate fiber were dried at 100 ℃ for crosslinking reaction. After that the dried fibers were soa…
Different contents of Ti were added into the hot-dip Al-Zn bath,which was used for DX51 D + AZ cold-roll steel sheets.Scanning electron microscopy and energy dispersive spectrometry were used to analyze the coating morphologies and composition,and the salt spray test was used to assess the corrosion resistance.The bat…