Materials Literature
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Electric field measurement method is an effective way of detecting ineffective insulators. In order to measure the electric field of insulators concisely and conveniently, and get the data for subsequence judgment, this paper introduces the hardware components, software structure and working principle of a new type of…
In order to study the behavior of sand under blast loading,the explosive tests were carried out in the explosion containment vessel(ECV) filled with sand.The test process was simulated by the finite element method software ANSYS/LS-DYNA.The dynamic response of the vessel was analyzed by 3D arbitrary Lagrangian-Euler f…
In this paper,the dyeing properties of silk fabrics degumming with pretreatment were investigated.The optimum conditions were determined through the orthogonal test and single factor influential test,compared with common alkali degumming.It appeared that the dyeing percentage of degumming silk fabrics with preteatment…
The Bi-doped aluminosilicate glasses with molar composition of 50SiO_2-xAl_2O_3-(50-x)MgO-1Bi_2O_3(x=5,10,15,20) were prepared by conventional melting-quenching technique.The broadband infrared(IR) luminescence properties of the glasses were studied.IR fluorescence centered at 1106 nm and 1 294 nm was observed under 6…
The sulfurizing layer is prepared on the netted laser quenching surface of CrMoCu alloy cast iron by means of low temperature ion sulphuration process. The surface morphologies and phase structures of sulfide layer are analyzed by a scanning electron microscope and X-ray diffraction. The tribological properties of the…
SiC short fiber(as-received and treated with couple agent) strengthened polytetrafluoroethylene(PTFE) composites were prepared through mixing and cold pressing.The mechanical,friction and wear properties of the composites were tested.The effects of the surface treatment on the performance of the composites were invest…
There are many factors that impact service life of polyester forming fabric.Through long-term exploration and practice,the author explored and summed up one way to monitor the thickness of forming fabric timely by that method to predict and control the service life of forming fabric which is relatively simple and feas…
The life of solid insulation of an oil-immersed transformer can be predicted by measuring the concentration of furfural dissolved in the oil.In this paper,the relation between furfural concentration and operation time is applied in calculating the alarm value of furfural concentration in a transformer according to its…
Thermosetting epoxy asphalt materials were prepared by using petroleum asphalt,modified epoxy resin,curing agents aliphatic polycarboxylic acid complexed from tribasic acid and dimeric fatty acid.The effects of asphalt content on tensile strength,glass tansition temperature,curing reactivity and phase structure were i…
The electroplating technology was adopted to prepare Ni film for catalytic growing micro-coiled carbon nanofibers by chemical vapor deposition.The morphology and structure of microcoiled carbon nanofibers were characterized by SEM,XRD and polarizing optical microscope in detail.The effect of electroplating process par…
Emergency treatment experiments of simulating chromium contaminated water was studied by adding carbon-based high-valence silver molecular crystal cell,which raw water was effluent after precipitation of the fourth water plant in Yangzhou.The results show that the adsorption capacity of chromium by carbon-based high-v…
In this work, sisal fiber (SF) was pretreated by alkali, silane coupling agent A-1120 and flame retardant respectively. Sisal fiber/ phenol formaldehyde (SF/PF) composites were prepared through compression molding. Effects of three treatments on the dynamic mechanical properties, creep and stress relaxation behavior w…
Hydrogen peroxide was selected to treat cashmere fiber.Through fuzz mathematics method and the included angle cosine,the weight vector of the main evaluating indices(felting ball volume,single fiber strength and compression elastic recovery for 15 s) was obtained.The weight vector was elicited.On orthogonal tests and…
Aimed at the present state that the cost of raw materials of corrugated roller is expensive,the hardness,microstructure and wearing capacity of 45 steel after surfacing welding and heat treatment were analyzed.The results show that 45 steel can be used for raw material of corrugated roller.
The development of the composite photocatalytic materials with the heterojunction,including preparation methods of the heterogeneous composite materials, influence of the heterojunction on the catalytic activity and its application are analyzed. The presence of the heterojunction is an effective means to promote photo…
A new kind of lamp made of traditional handmade paper possesses great marketing potential.Modern design patterns should be adopted to meet customers' aesthetic preferences.By analyzing features in ordinary paper lamps and handmade paper,this research will provide insights in the design trend of handmade paper lamps an…
The degradation behavior of an Intershield 300 ENA301 organic coating on 907A steel in a simulated deep sea environment was studied in an autoclave,in comparison with that under atmospheric pressure.The results indicated that the high-pressure accelerated the degradation process of the coating.The degradation modes of…
A method for preparing ACR-g-VC resin was introduced.The synthesis process and toughening mechanisms of ACR-g-VC resin were studied.ACR-g-VC resin was a kind of special PVC resin with high impacting toughness,good comprehensive properties,and would have wide development prospects.
A four-step reaction synthesized 5-(4-nitro-1,2,5-oxadiazol-3-yl)-5H-[1,2,3]triazolo[4,5-c][1,2,5] oxadiazolium inner salt(NOTO).The first step is the oxidation of diaminofurzan(DAF) with Caro's acid giving 3,3'-diamino-4,4'-azoxyfurazan(DAAzF) in yield 88.8%.The second one is the reduction of DAAzF by Zn dust(this te…
The physical properties of Fe3Al and anti-perovskite Fe3AlH were calculated by using first-principles method.The lattice constants,elastic constants and magnetic properties of Fe3Al and Fe3AlH at ferromagnetic(FM) and paramagnetic(PM) states were obtained.The results indicate that the lattice constants at ferromagneti…