Materials Literature
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Magnetoelectric nano-composites of 0.15CoAl0.2Fe1.8O4-0.75BaTiO3 are synthesized by sol-gel method. The XRD reveals that both the parent phases of perovskite BaTiO3 and spinel CoAl0.2Fe1.8O4 are present with no sign of undesired phases in the sample. The SEM images show that nano-particle crystallite size is about 45n…
By using the method of cross breeding and pedigree selection,a silkworm variety named Xiayue ×Qiuyu which has double sex-limited markings and characters of excellent silk quality and suits for summer and autumn rearing was obtained. The results of laboratory identification and rearing by farmers indicated that the new…
Microcellular foam of polycarbonate(PC)/polystyrene(PS) blend was prepared under relatively low pressure through a batch foaming process.The average cell diameter of PC/PS foam was 4.3 μm,and the average cell density of PC/PS foam was 8.89×109 cells/cm3.However,in the same foaming condition,the average cell diameters…
The sewage treatment experiment has been performed using carbon fiber as a biofilm carrier material.In this paper,it studies the rapid immobilization mechanism of carbon fiber carrier surface.It can be found that carbon fiber could immobilize the activated sludge which contains abundant microorganism rapidly.With area…
Two groups of flame retardants with the cooperation of phosphorus and nitrogen were selected to make flame retardants,solution with different proportions of phosphorus and nitrogen.The soft polyurethane foam treated with the solution was made.The TG analysis was done with the temperature rise rate of 15 ℃/min and the…
Effect of Al4C3 particles on grain size of AZ91 alloy was investigated through adding Al4C3 into the alloy melts directly.It was shown that grain refining efficiency of Al4 C3 particles was influenced by inoculating conditions.The higher the melt temperature and the longer the holding time,the higher the grain refinin…
Polypyrrole electrodes were prepared in 0.1mol/L Py-0.1mol/L LiClO-4 propylene carbonate (PC) solutions containing different proportion of water (0,1%,2%,3%,4%,by volume) through galvanostatic electropolymerization.The electrode properties of polypyrroles synthesized in the solutions containing different proportion of…
The defects of parts usually can be divided into three categories in the heat treatment.First kind refers to hardening heat treatment defects cracks,or quenching cracks.Quenching crack as a fatal defect is not repaired,the parts in addition to end-of-life,there is no other way;second type of defect generally refers to…
Magnesium alloys had an extensive use due to their excellent properties.Especially in the automobile manufacturing industry they had bright prospects.With the application of magnesium alloys in automobile manu-facturing became more and more widely,the resistance spot welding process of magnesium alloys also got more a…
Composite coating was prepared on the surface of an AZ91D magnesium alloy by plasma electrolytic oxidation-electroless plating to improve the corrosion and wear resistance.The silicate solution and plating bath containing nickel acetate mainly were used.The results show that a typical cellular structure was formed on…
The strengthening mechanism of sodium carboxymethyl starch(CMS) as a paper strengthening agent was studied in this paper.The results showed that CMS could notably improve paper strength,and the strengthening effect of different CMS were different.CMS with higher content of chloride gave larger strengthening effect to…
A new type of CO_2 corrosion inhibitor HQHP was synthesized by Mannich reaction.The performance evaluation showed that the appropriate amount of the corrosion inhibitor was 400 mg/L.At high temperatures,the inhibition efficiency in liquid decreased with the increase of temperature,but the the inhibition efficiency in…
The simulation and fittings of the nano-indentation measurement curves of a TiN coating and a Ti-Si-N nano-composite coating with a nonlinear finite element method was reported.And mechanical properties of TiN coating and Ti-Si-N coating ware analyzed.The introduction of the three-dimensional FEM simulation focused on…
The performance and conventional electrical properties of TJ13-3 unsaturated polyesterimide soventless impregnating resin and its application in wind turbines were presented.The impregnating resin proves to be appropriate for the VPI treatment of wind turbines.
After anodic oxidation, a layer of oxidative film builds up on aluminium based plates which is antiwear, anticorrosion and electric insulation. Anodic oxidation is affected by the composition and microstructure of aluminium alloy and anode pretreatment. Based on anodic oxidation technical process, the paper combines w…
The specifications and mechanism features of JSFA 288 Comber were Introduced.The processing parameters and choosed basis and method were discussed.The superior quality yarn were spun through appropriate process configuration.Some suggestions about maintenance work of this type of equipment were given out.
Carbon black(CB) filled in insulating silicon rubber to produce the conductive silicon rubber with piezoresistive properties,which is common material to make flexible tactile sensors.Experiments had been conduct to research the percolation phenomenon of the three types of CB,piezoresistive properties of the silicon ru…
The items inTechnical Specifications of Anticorrosion Engineering of Steel oil Tankswere described in order to achieve greater effectiveness in implementation of the specifications.
PbZr0.52Ti0.48O3 (PZT) thin films with Sr(Zr0.1Ti0.9)O3 buffer layer were prepared using the sol-gel method. The effects of different buffer layer thicknesses on the crystallization and properties of prepared samples were investigated. The results show that (111) preferred orientation of PZT thin films is induced with…
This Paper arrated production optimized sheared system's controlled process,in the hot strip technique of carries on shearing according to the shape of head and tail of hot strip,causes the set of sheared length to be more reasonable,guarantees rolling stability.