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。
Polycarbosilane (PCS) precursor fibers were irradiated using electron beam at low dose and under low oxygen partial pressure. They were then annealed at inert atmosphere, and pyrolyzed at high temperature under nitrogen to give silicon carbide fibers. The chemical reactions occurring during irradiation and annealing w…
How to decrease the CO2 discharge is an important global challenge.The paper introduces the reaction principles and process system of chilled ammonia process for CO2 capture,discusses factors influencing on the reaction and adaptable range,compares the CAP and MEA process from techno-economy and introduces some projec…
The diameters of the electromotor shaft shoulder can be changed in a small range.There are small fillet transitions between the shoulders.The open-die cold extrusion technology was used instead of traditional cutting method to manufacture the electromotor shaft shoulder,which was highly efficient and material saving.T…
Ceramic material with high hardness and light quality is wildly used to protect the light armored vehicles against the threat of small-bore armor-piercing projectile.However,the ability for anti-striking many times of ceramic armour needs to be stronger.During the amour-piericing process,the hardness and intensity of…
The new phosphate cement repair material was prepared based on MgO,KH2PO4.The setting time and strength of the new phosphate cement repair material were investigated,the hydration products and microstructure of the MPC were discussed too. The results showed that setting time of the new phosphate cement repair material…
The influence exerted by tanning and fatliquoring on fogged property of fur was measured by effect degree of factor on the property(EDFP).The results showed that the influence exerted by fatliquoring was obvious than tanning,and the influence of chrome tanning was obvious than that of FG tanning.The effect of differen…
A heat treatment technology was proposed for obtaining hard bainite in the surface layer of low-carbon alloy steel.In this process,the sample of 19Mn2Cr2NiMoAl steel was carburized using an instillation-style atmosphere-controllable carburization furnace,and then reheated for austenization and quenched into salt bath…
Mixed oxides of yttria-zirconia-alumina with 0,10wt%,15wt%,20wt%,25wt% of YSZ(yttria-stabilized zirconia,yttria:zirconia =1 ∶9,mass ratio) were synthesized by peptizing method.The prepared products were characterized by low temperature nitrogen adsorption-desorption,X-ray diffraction(XRD),and NH3-temperature programme…
Thermal oxidation of Fe nano-particles in nanoscopic reactors of carbon nanotubes(CNTs)was investigated by treatment in air from room temperature to 800℃.It is found that encapsulated Fe nano-particles are thermally stable up to a relatively high temperature of 170℃ comparing to oxidization at room temperature of bare…
The parent phase would be appeared in the martensite transformation,for example:K-S relationships,Nishiyama relationships.All the martensite variants satisfying K-S relationships,Nishiyama relationships are given.
The adsorption of ethylene on FeO(100) surface has been studied with a periodic slab model by PW91 of GGA within the framework of the density functional theory.The calculated results indicated that ethylene adsorption on the surface hollow site forming double σ bonds was the most favorable structure with the predicted…
The studies on environmentally friendly corrosion inhibitors for copper have become very important research direction and hotspot with the incessant enhancement of consciousness and request of environment protection.The up-to-the-minute research progress on this aspect is presented.The existing questions at present an…
A serials of Mn0.2Zn0.8Fe2-xCexO4(x=0,0.01,0.02,0.03,0.04) ferrite fibers were successfully prepared by the organic gel-thermal decomposition method using metal salts and citric acid as raw materials.The obtained ferrite fibers were characterized by X-ray diffraction(XRD),scan electro microscopy(SEM) and vibrating sam…
The self-healing theory and the fabrication method of the self-healing polymer composites are introduced in this paper.The applications of microcapsules and liquid-core fibers in the self-healing polymer composites and their research progress are summarized.And some difficulties in self-healing polymer composites are…
Cathode is an important part of solid oxide fuel cell (SOFC). The performance of cathode is very important for the performance of solid oxide fuel cell. Especially,it is crucial for the performance of low temperature SOFC. The interface resistance of cathode is about 70% -85% of overall resistance of cell. The ABO3 pe…
The processes of oxidation of NO from flue gas of coal combustion over KMnO4 was studied in the fixed bed reactor at a low temperature.The effect of flue gas components,such as SO2,H2O and O2,on the oxidation of NO was analysed.The influence mechanism of Ca(OH)2 on oxidation of NO over KMnO4 was proposed.The presence…
Solubilities and solution densities of the quaternary system KCl-K2SO4-K2B4O7-H2O at 288 K were studied by isothermal equilibrium method.The results show that the quaternary system was simple total saturated,and there is no formation of double salts and solid solutions.Based on the solubility data,the phase diagram of…
The influences of dispersivity of core particles and mass transfer of hydrogen on coating uniformity of spherical Ni/C composite particles in high pressure hydrogen reduction process were studied.The results showed that the thickness of nickel coating varied form 4.5 to 6.0 μm while the diameter of spherical graphite…
The measures to enhance the laser-acoustic conversion efficiency of laser generation of acoustic waves through thermoelastic mechanism are discussed firstly based on the theory of the interaction of pulsed laser radiation with liquid,and the effects of the characteristic of different liquid media on the conversion eff…
The principle and technical characteristics of adjusted pressure casting technology were described. Research status of adjusted pressure casting technology was reviewed from filling capacity, properties of solidification feeding and mechanical properties respectively. Combined with the practical application, developme…