Materials Literature
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Based on RDX single crystals can be used for basic research of their initiation mechanism and mechanical response mechanism,RDX single crystals were cultivated by the acetone solvent slow volatilization method,at room temperature and constant temperature respectively.The results showed that centimeter size of RDX sing…
In order to raise the strength and hardness of AM355 steel for the demand of aircraft material,three AM355 steel bars with different compositions were investigated,which were prepared by VIM+ESR technique and forged into 80 mm.Mechanical properties were tested after different temperatures quenching,same cold treatmen…
Tributyl citrate was a kind of important green plasticizer,with a wide range of uses.Choosing a kind of high efficient catalyst for synthesis of tributyl citrate with citric acid and n-butyl alcohol as raw materials was an important step.The literature on the synthesis of tributyl Citrate in recent years was reference…
The high throughout and cost-effective fabrication strategy of raspberry-like Au-Resin microspheres,with the anion exchange resin microsphere as the inner core and the monolayer array of micro-sized Au posts as the outer shell,was achieved by the reduction reaction of AuCl-4-Resin by ascorbic acid in aqueous solutions…
Flame retardant and hydrophilic finish is carried out on polysulfonamide/viscose blended fabric.The flame-retardant agent and hydrophilic agent are selected and their dosages are optimized.The results show that taking FPK 8002 as a flame-retardant agent and DP-9993 as a hydrophilic agent,the optimum finish process is…
The FTO glass coated with ZnO seed layer was prepared by spin-coating,and it was further placed in growth solution to form messy and neat ZnO nanowires(NWs) via hydrothermal growth.By repeating the procedure,branched ZnO NWs were obtained.X-ray diffraction,UV-visible spectrophotometer,and photoelectric conversion test…
Through regular monitored the physiological and biochemical indexes,we studied the best parameter index of different specifications of PE bags as MAP(modified atmosphere packaging) with the Yunnan Mengzi pomegranate as test materials at 3 ℃.The results show that the effect of 0.01 mm PE MAP was the best.The indicators…
A functional gradient material(FGM) based sealing was designed and applied to seal the α-Al2O3 insulator with Na-β-Al2O3 solid electrolyte of sodium anode batteries.FGMs with different component change rates were fabricated by powder stacking method.The experimental results indicated that the two dimensional feature o…
Cotton fabric is pad dyed by adding citric acid into the dye solution of tea polyphenols.The effect of citric acid concentration and its temperature and duration of curing on color yield and breaking strength of the cotton fabric are studied.The result shows that the color yield of cotton fabric increases while its br…
Cu-5wt%Al2O3Alloy was fabricated by internal oxidation,and its annealling characteristics microstructure was studied by mechanical and electric property measurement,SEM fracture analysis and TEM observation.The results show that with increasing hot deformation,the hardness increases gradually,whereas the conductivity…
The specimen of Cristaria plicata with shell length(9.50±1.05) cm and shell height(6.45±0.81) cm were temporally cultured for one week.We designed test trial and control trial with 20 individuals for each.We obtained the full-length cDNA sequence of defensin from the cDNA library of Cristaria plicata.The full-length c…
To understand the effect of heat-treatment on the microstructure and plastic flow characteristics of DH36 steel,five heat treatment technologies were carried out.The microstructure evolution and the plastic flow characteristics were analyzed by SEM and EDS,combined with systematic mechanical test.The results show that…
The cause of the galling in an automobile high-strength steel plate longeron was analyzed.From aspects of production structure,punching die structure,selection of materials,heat treatment process and surface heat treatment,the corresponding measures were proposed.Through optimizing the production structure,improving t…
The evolution of grain orientation within cluster of grains interfaced by ∑3n boundaries was in-situ traced in the 316L austenitic stainless steel treated by 5% cold rolling and subsequent high-temperature annealing by means of EBSD technology.The results show that oriented growth of Brass({110}112),Copper({112}111),B…
The SF-522 type low-foaming potassium chloride zinc plating process (a third-generation zinc plating process in potassium chloride solution) was introduced and compared with an imported zinc plating process in low-foaming potassium chloride solution. The effects of bath composition, process conditions and various impu…
In order to comprehend the LWACF performance with Eucalyptus as raw material,the structure of Liquefied Eucalyptus Wooden Activated Carbon Fiber(LWACF) was measured using a Surface Area Analyzer and a Pore Size Analyzer,Scanning Electron Microscope(SEM),Transmission Electron Microscopy(TEM),X-ray photoelectron spectro…
Quadrangular chains is a connected graph that consists of several unit square sequences and any two adjacent squares have only one cut edge.This paper presents the Merrifield-Simmons index and itscomputational formula of quadrangular chains made up by unit square sequences under two non-isomorphic connected positions.
The effect of the screw rotation speed,temperature and pressure of subcritical water,and other additives on the devulcanization in the blends of the SBR-based ground tire rubber(GTR)with PE-HD was studied.It showed that the high shear stress imposed by the twin-screw extruder and the subcritical water may promote the…
EVA/NBR/FR composites containing magnesium hydroxide(MH)and red phosphorus(RP)as flame retardants were prepared.Attapulgite(AT)was used to improve the mechanical properties,oil resistance,flammability,and thermal stability of the composites.It showed that upon introductiing 10phr AT,the tensile strength and elongation…
The mechanism of solidification during soft reduction in continuous casting was researched through m ould reduction experiments.The samples were analyzed by original position analyzer(OPA) and ordinary optical microscope.The results shows that the major segregation contents of GCr15 steel are C and P.The primary dendr…