Materials Literature
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The method of Materials Genome Initiative greatly speeds up the optimization of thermoelectric materials. Based on theoretical calculations and materials' database, this approach rapidly finds out the important factors that affect materials' properties,which can be used in the study of current materials by providing h…
Red fluorescence powder of Na2 Zn Si O4:Eu3+ was synthesized by a sol–gel method using H3BO3 as a flux. The phase structure and luminescent properties of the samples were characterized by X-ray diffraction and photoluminescence spectroscopy. Effects of H3BO3 amount and Eu3+-doped amount on the luminescence performance…
In order to improve the property of shaped charge liner,a refractory metallic composite and processing technology were proposed. The experiment with Mo and Cu shows that after multi-pass processing,the broken layer of Mo with fine fiber shape is uniformly distributed in the Cu matrix,and Mo-Cu pseudo-alloy is presente…
Thermodynamic and kinetics analysis of anatase Ti O2 reaction in high calcium system were conducted and the possible reactions were determined. Activation energy,reaction order and reaction control types of important reactions were determined by calculation in this system. The reaction behaviors of anatase Ti O2 in Ti…
The diode microbolometer uncooled IRFPAs( infrared focal plane arrays,IRFPAs) have shown broad prospects in recent years. The performance of the IRFPAs is limited by sources of noise from the detector itself which must be further studied and decreased to achieve better performance. This paper outlines sources of noise…
The criterion of insulation flashover is the key factor for the line lightning resisting level calculation, the leader development back flashovers model which simulating the insulator flashover process is proposed based on EMTP-ATP software. It is analyzed and verified through an example, the impacts of three flashove…
Alkyl polyglycosides( APGs) with different carbon chains from C10 to C14 were synthesized and characterized with infrared spectroscopy. The influence of APG concentration and carbon chain length on the surface and interfacial properties were both studied. The results showed that the surface tension and diesel-water in…
The different CaO content of slag-based geopolymer cement is produced by metakaolin,slag and fly ash as the main material,and mixed low modulus sodium silicate. The main research is the influence of CaO content on mechanical performance of geopolymer. Experimental results show that the mechanical performance 3d and 7d…
In response of such problems as ammonia escape, high regeneration energy, low absorption rate in the late stage of carbon capture by ammonia, this paper presents two kinds of reinforced crystallization technologies based on solventing-out, respectively called mixed absorbent process and reinforced crystallization of c…
Aramid / polytetrafluoroethene fabric self-lubricating liner is one of function parts of selflubricating spherical plain bearing,and its macroscopic mechanical properties parameters should be set up accurately in the calculation of relevant research and analysis. The research purpose is to acquire macro mechanics perf…
In order to study the effect of burst height on penetration properties of annular shaped charge jet,the physical process of jet forming and penetrating steel target of section-symmetrical and small-bore annular shaped charge was studied with LSDYNA3 Dfinite element program and the Lagrangian-Eulerian coupling method.…
The expansion force and the water holding capacity of 8 kinds of marine dietary fiber were detected,and the fiber with high expansibility and high hydraulic were selected, and the mixer of marine dietary fiber was studied. The different between marine dietary fiber products and 4 kinds of dietary fiber laxative produc…
Superlattice coatings have been paid extensive attention to the cutting tool industry due to their excellent mechanical properties and oxidation resistance.AlCrTiSiN coatings were deposited on the surface of high-speed steels by multi-arc ion plating,and the effects of nitrogen partial pressure on the microstructure a…
Epoxy laurate was synthesized from epoxy resin E-20, and then modified by grafting with acrylic acid monomer and diacetone acrylamide(DAAM), while by adding adipic acid dihydrazide(ADH), to prepare a ketone and hydrazine self-cross-linking at room temperature nano epoxy resin emulsion. The structure of the products sy…
In actual operation of oil-immersed power transformer, temperature gradient between windings and oil causes non-uniform aging of insulating paper. In order to simulate non-uniform thermal aging process of oil-immersed paper, a test platform is established in laboratory, coming to conclusions by measuring polymerizatio…
Negative thermal expansion(NTE)ZrW2O8 powders were prepared by solid-state reaction with ZrO2 and WO3 powders.In situ high-pressure X-ray diffraction measurements for powder ZrW2O8 were performed by using a diamond anvil cell(DAC)with synchrotron radiation facility.The result shows that powder ZrW2O8 is cubic phase wi…
In order to investigate the failure pattern and threshold value of masonry wall under blast shock vibration loads,according to the practical situation of masonry wall in engineering, simplified masonry wall models were established. Experiments under the shock loads acting seperately in three directions were carried ou…
The effect of glass fiber or mineral fiber on the mechanical properties of basic oxygen furnace steel slaggranulated blast furnace slag cementitious composites has been studied in this paper.The volume expansion of the cementitious composites was measured by boiling and autoclave tests.In addition,the distribution,as…
The nitrogen oxide(NO) reduction efficiencies of three biomass samples(rice husk,sawdust and corncob) by reburning were investigated under different conditions(reburning temperature and O2concentration) in a fixed-bed reactor. The variations of CO,H2,hydrocarbons(mainly CH4),HCN and NH3 in the outlet gas from reburnin…
In order to study the characteristics of oscillatory process of a molten silicon droplet under static magnetic field, the phase field method was adopted to numerically simulate the interface oscillation and internal fluid convection of a molten silicon droplet. The influence of an axial static magnetic field on the in…