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。
In order to establish constitutive modeling of solid propellant materials with evolving damage subjected to pressure loading,we perform different temperatures and ambient pressures with improved tensile machine,draft and compile User-defined Material Mechanical Behavior(UMAT)with interface of ABAQUS software,According…
The representative clay minerals were collected from Yonganwanchang county in Bijie city of Guizhou province,and then ball-milled to sieve 80 meshes for analysis.The chemical compositions,mineral compositions,physico-chemical properties and microstructures of clay minerals were characterized by XRF,XRD,DTA-TG,FE-SEM a…
Aiming at the disperse process of the base plate for moving table in large hydraulic press,the special tooling has been applied in the process to improve the efficiency and reduce the production cost.
Experimental results show that a certain amount of rare earth and boron have a good refining effects to silicon brass.Zirconium doesn't show obvious effect.The refining effect of 0.01% boron is the best,and the effect of 0.004% rare earth is in the next place.Measuring the depth and lost weight of corrosive layer foun…
The photopolymerization kinetics of 2,2′-diomethoxyphenyl-4,4′,5,5′-tetraphenyl-1,2′-diphenylimidazole(BMOIM) was investigated in this study.The UV absorption spectra of photoinitiator,hydrogendonor and photosensitizer were analysized by UV spectrometer.Real time infrared spectroscopy(RT-IR) was used to investigate th…
By programming the eddy current test based on VB and designing two eddy current probes which couple well respectively with the gibbous circle and base circle of the campieces,the hardness of three high-frequency induction quenched nodular cast iron campieces with different surface hardness were tested.The results show…
MWCNTs were functionalized with carboxyl and then mixed with epoxy TDE85.The obtained mixtures were used to impregnate the NCF laminates,stacking with a sequence of [0°/90°/+45°/-45°]S.Flexural properties,interlaminar shear strength(ILSS),and mode Ⅱ interlaminar fracture toughness(GⅡ C),as well as the glass transition…
Magnesium alloy was bonded by impact pressure vacuum diffusion bonding.The results show that magnesium alloy could be bonded by impact pressure vacuum diffusion bonding,and when the constant temperature is 450℃,and the impact pressure is 5-8MPa,keeping 90min,its tensile strength can reach 36Mpa,Fracture surface shows…
Multi arc ion plating ZrTiN hard coatings were deposited on WC/TiC/Co and WC/Co cemented carbide substrate with independent Ti and Zr targets.The effect of deposition time on morphology,phase composition,thickness,hardness and adhesive strength of the coatings was investigated,respectively.The results show that only f…
CO2 widely exsist in oil and gas pipelines,it will produce different levels of corrosion to the oil and gas field pipeline,resulting in disastrous consequences,such as significant economic losses,casualties and environmental pollution.Through access to the extensive journal about CO2 corrosion,this paper briefly descr…
Due to their novel properties,anisotropic Ag nanomaterials have attracted much attention in recent years.It is very important to control the size,shape,and structure of silver nanomaterials due to the strong correlation between the parameters and the optical,electrical,and catalytic properties.The study advances on th…
Fusion bonded epoxy(FBE)spraying is a general process link in the modern anti-corrosion industry.The coating uniformity is very important,but difficult to control.There are two factors,which influence its uniformity.They are spraying stability of the powder guns and the guns' arrangement.According to steel tube's moti…
Electroplated Zn-Ni alloy coatings were prepared from alkaline bath containing different concentration of nickel sulfate(NiSO4.6H2O).The morphology and composition of as-plated Zn-Ni alloy coatings were analyzed by scanning electron microscopy and energy dispersive spectrometry.The Tafel curves of as-plated alloy coat…
This paper presents a theoretical model on the process of energy transfer in the Ce3+-Yb3+ co-doped glass system,which includes rate equations,power propagation equations and other assistant equations of Ce3+ and Yb3+ ions.Trough the simulation,power conversion efficiency equals 116.3%and quantum conversion efficiency…
In order to increase permeability of resistance to chloride ion of high performance concrete,the lithium slag with volcanic ash usability and steel slag producing their own hydration were mixed with the concrete.Using orthogonal design,RCM method tests showed that with the incorporation of lithium slag and steel slag…
This paper is related to an Object VR-based virtual textile wearing system carrying out textile texture mapping based on viewpoint vector estimation and intensity difference map. The proposed system is characterized as capable of virtually wearing a new textile pattern selected by the user to the clothing shape sectio…
Cu/ZnO/Al2O3 catalysts were prepared by mechanical milling and combustion at different calcination temperatures and were tested for the synthesis of methanol from CO hydrogenation.Calcination of catalyst precursors was monitored with thermogravimetry differential scanning calorimeter(TG-DSC).These catalysts were chara…
The textual criticism of original species of Hongxuecha has been made combining species identification and field surveys. The results showed that Hongxuecha had two original species, Lethariella cladonioides and L.zahlbruckneri. There were chemical variability within the two populations. Hongxuecha in the market sales…
C18.2tex yarn and C14.6tex yarn have been spun with five different break drafts on rign spinning machine.The performances of the above ring spun yarns were tested and analyzed.The result shows that the performances of C18.2tex yarn and C14.6tex yarn will be best when the break draft is 1.38.The hairiness,CV value of y…
A series of novel quaternary amphiphilic chitosan derivatives(DEAE-CMC) were prepared.The DEAE-CMC/VB12 microspheres were prepared by emulsion—crosslinking—solidification method.The particle size,morphology and microstructure of the microspheres were analyzed by laser particle size analyzer and scanning electron micro…