Materials Literature
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A compact magnetostrictive actuator consisting of three Terfenol-D rods and surrounded by a magnetic coil was designed,which is more energy efficient.Based on electromagnetism principles,the relation of the actuator output with the length Terfenol-D rod,the size of the top end plate and the bottom end plate was deriva…
The physical and chemical characters of Migao were studied during storage.Thermal mechanical analysis techniques were used in order to evaluate the retrogradation of starch in Migao.The first transition with a peak temperature(Tp)at approximately 52.331℃ was characteristic for the melting of retrogradated amylopectin…
The Fe54Pt46 thin film was deposited on SiO2〈0001〉 substrate by magnetron sputtering system,then the as-deposited film was vacuum annealed at 650 ℃ in situ.The structure and magnetic properties of the film were investigated by means of X-ray diffraction and vibrating sample magnetometer.The results indicate that phase…
A layered porous calcium phosphate cement (CPC) scaffold was prepared by a salt-leaching method and cold isostatic pressing molding technology,imitating the structure of the flat bone. The phase composition,microstructure and compressive strength of the layered porous scaffolds were evaluated by X-ray diffraction (XRD…
Study the effects of Chitosan on fermented chili. By determining the total amount of acid , vitamin C, nitrite , the sum of bacteria, sensory quality and storage stability , the result showed: Chitosan can inhibit lactic acid fermentation of fermented chili the in the primary time,but there is little difference in the…
Mesoporous material is of much use in the fields of photochemistry,catalyst and separation etc,and it is one of hot spots of research.The research progress of the mesoporous materials is reviewed in this paper.And the classification and synthesis mechanism of the mesoporous materials are also outlined.The potential ap…
Phenolic resin-based activated carbons were prepared from phenolic resin by one-step carbonization activation technology with potassium hydroxide as activating agent. The surface functional group, specific surface area and the porous structures of the activated carbon were analysed by TG-DTA, FTIR and N2-BET. The resu…
Polycrystalline lead iodide (PbI2) thin films were deposited on glass substrates by electron beam evaporation method. The influence of different substrate temperatures on the structure,surface morphology and optical transmittance of the films was studied. XRD analysis shows the PbI2 films deposited at different temper…
With the development of computer science,the softwares are more and more used in textile industry.This paper takes advantage of the MATLAB software,which has powerful image processing toolbox and wavelet toolbox,to process the image of thin crosseetion of sizing,then to display the infiltration percentage and covering…
It was reported that the calyx arene derivative was synthesized with calyx arene and methacryloyl chloride as raw materials.Using calyx arene derivative and acrylamide(AM) as the bi-funtional monomers,a molecularly imprinted polymer was prepared.The results of experiments indicate that the selectivity of the MIP,which…
The La_(0.7)Sr_(0.3)Co_(1-y)FeyO_(3-δ) powders were synthesized by a low temperature combustion method.The synthesizing process and the phase of the La_(0.7)Sr_(0.3)Co_(1-y)FeyO_(3-δ) powders were characterized by TG-DSC and XRD, respectively.The results showed that all samples form perovskite structure after sintered…
Bi2Te3 and its solid solution alloys are the most maturely developed thermoelectric(TE)materials under room temperature with the broad application prospect in the thermoelectric refrigeration and generation techno-logy.It is the key problem to fully improve the thermoelectric figure of merit(ZT).The ZT of traditional…
The electrochemical properties of gold electrode(PMB/Au) modified with polymethylene blue(PMB) and the electrochemical behaviors of UA at PMB/Au were studied.The kinetics parameters were determined.PMB/Au exhibited a significant catalytic effect for the oxidation of Uric acid(UA).The oxidation peak potential shifted 7…
Based on the growing technology of carbon nanotube and focused ion beam techniques(FIB),the experiments of micro nano unit based on carbon nanotube were finished and the fabrication processes of micro nano unit were developed.The results show that the micro nano unit with Ohmic contact or Skotoky contact can be fabric…
Through the analysis of the equipment,the technical process,the production working procedure,the quality control and the worker management status of a well-known domestic shirt manufacturer,focus on the working procedure and worker management,the unreasonable and the unscientific parts are found out,and the resolvents…
Button ingots of polycrystalline Fe81Ga19 alloy are prepared by arc-melter,and the effects of different heat-treatments on their microstructure and magnetostriction are investigated.The specimens are annealed at 700℃,800℃,and 900℃,and then cooled at different speeds,i.e.quenching into ice water,air cooling,or furnace…
Combustibility of polyphenylene sulfide nonwoven fabric(PPSNF) was first studied by Cone Calorimeter in this paper.Ignition parameter,heat release parameter,smoke and toxicity parameter and mass loss parameter of PPSNF was obtained.It was found that Time to Ignition,Heat Release Rate,Total Heat Release,Effetive Heat o…
Enzymatic hydrolysis of collagen from ox bone,using Alcalase 2.4L as biocatalyst,was carried out in aqueous medium.The effect of key factors,including enzyme dosage,substrate concentration,reaction temperature,pH and reaction time,on the hydrolysis of collagen were investigated.Results showed that the optimal conditio…
The continuity,adhesion and conductivity of polypyrrole(PPy) film polymerized on porous insulated A12O3 layer after pretreatment with silane coupling agent or not and the performance of PPy aluminum solid electrolytic capacitor were compared.The effects of Silane Self-assembled monolayers on the performance of conduct…
The reinforced concrete is the commonest material used in the construction of buildings in modern times.But this kind of construction has some inevitable faults.With the passage of time,some disadvantageous ions and elements invade into the construction and shorten the life of these buildings.This paper studies the re…