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。
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…
Natural rubber/tungsten composites based on natural rubber and micro-/submicro-sized tungsten particles were prepared to use for X-ray shielding.The microstructure,curing characteristics,static mechanical properties,dynamic mechanical properties and X-ray shielding performance of the composites were systematically inv…
In order to ensure the accumulated space-charge of dielectric materials on spacecraft to discharge timely in the space environment, we adopted a method of adding the micron grade powder filler into polyimide(PI), and developed a new type of modified PI composites which has non-linear conductivity characteristics. More…
The amorphous Mg65Ni10RE25 alloys were prepared by copper-mold injection casting, and the structure, corrosion resistance property and discharge capacity of Mg65Ni10RE25 alloys were investigated by using XRD, electrical chemical test and discharge capacity test. The structure and chemical stability of the amorphous Mg…
The process of electroless palladium plating on surface of copper was studied. The effects of plating temperature and time on bath's p H as well as deposition rate, porosity, and surface morphology of the deposit and its corrosion behavior in 3% Na Cl solution were studied by gravimetric method, ferroxyl method, scann…
Energy conservation and emissions reduction is an important challenge to iron and steel industry.Renewable biomass-derived reducing agents had gained attention as possible substitutes for fossil-based reducing agents in the iron making blast furnace.Waste plastic was mixed together with limonite powder and bentonite f…
Asphalt cement is mainly composed of the complex colloidal structure of different components. Therefore,the viscosity of asphalt cement is influenced by the change of composition and colloid structure. Chemical composition test and DSC test were conducted on both the crumb rubber asphalt and WAM crumb rubber asphalt.…
Basalt fiber yarns were treated in 2.0mol/L NaOH for different times at 60 ℃respectively,to evaluate their properties of corrosion resistance and mechanism in acidic or alkaline environments.The results show that fracture strength generally decrease after treated in acid and alkali solution,just a bit different of the…
CaSi2O2N2:Ce3+/Eu2+phosphors were successfully synthesized via the solid-state reaction method.Photoluminescence properties of Ce3+-doped,Eu2+-doped and Ce3+/Eu2+codoped samples are investigated.CaSi2O2N2:Ce3+phosphors show a broad band centered at 395 nm under 333 nm excitation.Red-shift occurs as the concentration o…
To research the toughening effects of flexibilizer polyolefin elastomer(POE)on bamboo flour/high density polyethylene composite(bamboo-plastic composite,BPC),to prepare high performance BPC.Different content of POE was added to the BPC to prepare samples,the mechanical properties and dynamic thermomechanical analysis…
Copper accelerated acetic acid salt spray corrosion tests of 6063 aluminum alloy and its anodic oxidation film were performed under the same conditions.The corrosion weight loss was measured with an electronic balance,while the corroded surface morphology and corrosion product composition were analyzed by scanning ele…
Based on the characteristics of vertical type twin-roll casting process,the finite element method was used to analyze the three-dimensional steady conservation equations for transport phenomena in the pool region of the twin-roll strip casting for the magnesium alloy. The smart-sizing algorithm of ANSYS software was u…
Liquid lubricants can improve the tribological properties of hard films. The tribological performance of titanium nitride(Ti N) hard film against bearing steel and silicon nitride respectively was evaluated using a ball-on-disk tribo-tester under lubrication of several kinds of lubricating oils. The morphologies and e…
This chapter reviews catalytic chemical processes mediated by lead, and is grouped by lead oxidation state, that is lead(0), lead(ii) and lead(iv).
The triazole crosslinked curing system based on GAP,non-energetic polyether and polyester was reviewed.It is pointed out that there is huge prospect of triazole crosslinked curing system on solid rocket propellant with high energy and low signature.The reasons for poor mechanical properties of triazole crosslinked pol…
In order to obtain the influence mechanism of high energy ball milling time and annealing temperature on the characteristics of TiNi mechanically alloyed powder( MA powder),the MA powder was analyzed by X-ray diffraction( XRD),scanning electron microscope( SEM),energy dispersive spectrdmeter( EDS) and differential sca…