Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
A novel pseudo-nanocrystalline Li4Ti5O12 spinel was prepared using hydration titanium dioxide as starting materials.Hydration titanium dioxide added with activated carbon,citric acid and lithium salt was heat-treated at 800℃ in air for 12h after desiccation.The spinel shows a good lithiation performance.Its reversible…
The chemical preparation technique of silver nanoflakes has attracted comprehensive attention and research.The chemical preparation technique of silver nanoflakes can be summarized in four categories: chemical reduction aggradation,soft template,electrochemical deposition and annealing deposition.The formation mechani…
Using KES-FB handle tester, this paper studied the effects on fabric style of wool fabric treated by different pretreatment. The results showed that, the wool fabrics were treated by protease or H2O2/DCCA+protease two-steps procedures, the softness performance was increased, but the elongation recovery ability and the…
Hydroxyapatite nanoparticles were surface-grafted with e-caprolactone(e-CL) by the ring-(opening) polymerization,and different quantity of lactides were segmented on the particles.The structure of the composite is characterized by TEM,FT-IR,()~()~1H-NMR and()~(13)C-NMR.The results indicate that HA has been dispersed h…
Nano-palladium catalyst supported by carbon nano-tubes (Pd/CNTs) for iodobenzene Heck reactions was prepared with impregnation method and characterized by ICP,XPS and TEM techniques. The results showed that there were two chemical states (zero-valent and divalent) for Pd existing on CNTs surface,with the particle size…
PFI was used to refine the four species BCTMP pulp of spruce, poplar, birch and maple. The properties of paper made from refined BCTMP were discussed. It was shown that the paper made from refined BCTMP had higher tensile strength and lower bulk, but the stiffness of the paper changed a little because of result from t…
Deep removal of low-concentration NO from N2 was studied by using Mn,Co,Cu and Ni oxides modified HZSM-5(25) as absorbent,and among these four absorbents,Ni/HZSM-5 showed the best performance.Effects of support type,Ni loading amounts,adsorption temperature and impurity gases on NO adsorption of these absorbents were…
In the direct coupled Microwave Plasma Chemical Vapor Deposition(MPCVD) diamond film device,a magnetic mirror is used upon quartz tube reaction chamber lens to better constraint plasma shape.So plasma ball becomes to dish plate,the density of plasma ball is improved.The basic parameters: reactive pressure 2.5 kPa,slic…
The quality indexes,special requirements and existing problems of PET chips used for edible oil bottle was introduced.The methods to produce PET chips used for edible oil bottle were expounded such as adjusting the process,adding copolymerization third component IPA and controlling the amount of additives.A new produc…
The crystalline electric field(CEF) parameters,the CEF splitting levels and corresponding wave functions of compounds Ce3Rh2Ga2and Ce3Rh3Si2 are obtained by means of simulating the temperature dependence of inverse magnetic susceptibility measured by D.Kaczorowski group.The calculated results are in good agreement wit…
In this dissertation, α-MnO2 spheres have been synthesized by a mild wet chemical method. The morphology and structure of the as-prepared products were characterized via some measurement techniques, and their electrochemical properties have been investigated. SEM and TEM images indicate that the resultant products con…
The compatibility of the 316-316 S.S.weldment for CEFR main vessel and the 316-5038 steel weldment for main vessel neck support with 450 ℃ thermal convection sodium and 190 ℃ sodium vapour were investigated foe 3 000 h.The oxygen and carbon content are 25 μg/g and 14 μg/g respectively.The measurement and analysis of t…
A general inequality is established simply and conveniently based on the first and second laws of thermodynamics,from which many familiar inequalities are directly derived.It may be expected that some new inequalities are derived from the inequality.
In order to probe into the approach to improve heat resistance of Mg-Al based alloys,effect of silicon on microstructure and mechanical properties of graphite mould cast Mg-9%Al-x%Si(x=3,6 and 9) alloys was examined.The microstructure of the alloys consists of α-Mg,dendrite Mg_2Si and β-Mg_(17)Al_(12) phases.The size…
The thermal spraying is a new technology of metal surface treatment and protection,by thermal spraying technology on the surface of the material processes,the performance of the surface of the material will be improved.Most root cause of failure in mechanical engineering was mainly due to the wear and tear caused.By t…
A lattice model was developed for predicting the chloride diffusivity of concrete.By applying the principle of energy equivalence,an analytical relationship of chloride diffusivity between the lattice beam and the continuum body was derived.Based on the simulated aggregate distribution and the relative positions betwe…
Giant magnetostrictive actuator are widely used in accurate control fields,the performance improvement of the servo controller can increase productivity and product quality.The development of the system modeling and control technique of giant magnetostrictive actuator is reviewed,and the basic design principles of gia…
The ZnS powder is prepared by hydrothermal method and coated with zinc carbonate hydroxide by homogeneous precipitation method.ZnO-coated ZnS particles can be obtained using calcine precursor.The powders are characterized by XRD,SEM and PL techniques.The results indicate that the coated-ZnS with different morphology c…
Glucoside quaternary(CAPG) was prepared with 3-chloro-2-hydroxypropylglucoside(CPG) and tertiary amine,using normal propyl alcohol aqueous solution as a solvent.The optimum conditions were shown as follows:n(CPG)/n(tertiary amine)=1.4,m(normal propyl alcohol)/m(water)=0.5,the reaction time 4 h.The conversion rate of t…
Dichlorophenylphosphine sulfide(3) was greenly prepared from phosphorus trichloride,benzene and sulfur powder by ionic liquid method. Two novel flame retardants containing phosphorus,2,4,8,10-tetraoxa-3,9-dithio-3,9-diphenyl-3,9-diphosphaspiro[5,5]-undecane(1) or 5,5-dimethyl-2-phenyl-2-thio-1,3,2-dioxaphosphorinane(2…