The influence of CeO_2 on the growth stress in the scales on aluminide coatings was studiedby a novel two-side oxidation bending method,and the differences of the stresses were calculated.The re-sults indicate that,the CeO_2 particles added to the alumini

Electrochemical techniques combined with physical analysis techniques wereemployed to study hot corrosion of Ti_3(?)l in molten(Na,K)_2SO_4-NaCl melt at 800℃.It isshown that hot corrosion resistance of Ti_3Al is rather inferior to that of IN738 alloy.The

Magnetoresistivities of NiFe alloy films and NiFe/Cr/NiFe multilayer filmswere mnvestigated in this paper.Samples were prepared by means of ion-beam sputtering.Magnetoresistance is measured with four-probe.The dependance of magnetoresistance on filmthickn

An experimental investigation into the effect of heat treatment on morphologyand thermoelectric properties of SiGe:GaP alloys is reported.Attempt was made to correlate thechangas in the thermoelectric properties with these in matarial's morphology.The res

The solidification and segregation behaviors of 8090 Al-Li alloy have been in-vestigated with differential thermal analysis and metallographic-electron microprobe method.The results show that the reaction of L→α-Al+L' is a essential solidification process

The effect of various content(0.1 and 0.5 wt-%)of rare earth element Y on ten-sile properties and fracture behavior of 8090 Al-Li alloy has been studied.The results show thathigher ductility can be obtainted by 0.1% Y addition and the strength does not re

In this paper,the mathematical model of the flow stress of microalloyed steelscontaining Nb and Ti under dynamic hot deformation has been carried out by usingThermecmastor-Z simulator at deformation temperature of 1123—1423K and strain rate from0.1 to 60s

The variations of the average density of dislocation and its distribution paramet-er in Al-Zn-Mg alloys(contain rare-earth or not)during superplastic deformation are investi-gated using linear anaylysis of X-ray diffraction method.The effect of dynamic re

γ-Fe nano-powders with size of 20—40nm were produced successfully bySF_6-sensitized and CW CO_2 laser-induced gaseous pyrolysis of Fe(CO)_5.The γ-Fe wasformed and stable in reaction zone at above 910℃.The rapid quenching prevented the γ-Fefrom transformin

Fracture toughness(K_(Ic))and mechanical properties of AIN could be improvedby incorporating certain volumes of SiC_w into AIN matrix.Microscopic analysis by SEM,TEM,and EDAX showed that in the composite with higher fracture toughness,the suitableinterrac

The microstructure of SiC whiskers were investigated by analytical electron mi-croscope(AEM).Two kinds of SiC whiskers were distinguished according to the micrstructurecharacteristics.One is the one-dimensional disordered and the other is bamboo-jointmorp

The modulus-strain curves of two kinds of PAN-based and one kind ofisotropic pitch-based carbon fibers were measured in this paper.It was discovered that themoduli of three kinds of carbon fibers do not always change linearly with the strain.Each curvecan

A novel latent curing agent,poly(aryl ether ketone)/tris(salicylaldehydato)aluminium,wasused for curing epoxy resin.The curing mechanism and effects of the curing agent on the reaction rate,me-chanical and electrical properties of the cured resin were inv

The fracture toughness(G_(ic))and fracture morphology of polyphenylene suifide(PPS)toughened with high performance thermoplastic bisphenol A polysulfone(PSF),polyetherketone with cardo group(PEK-C)have been studied.Both systems showed the im-proved impact

Through measuring the thermal plastic deformation curve of polyethylene(PE),this paper determined the capillary extrusion temperature range of polyethylene,and measuredthe mechanical properties and heat shrinkage behavior of extruded raw fibres and low te

A vibration-creep-vibration test procedure was adopted to characterize the in-fluence of creep on dynamic viscoelastic properties of a short fiber reinforced epoxy—sheetmoulding compound(SMC)composite under different temperature and different creep times.

In this work,it has been successeful to measure the average fiber fragment lengthin SiC(CVD)single fiber reinforced aluminium composites during tensile test,by means of anacoustic emission(AE)technique.The reliability of the measure method has been proved

Al_2O_3/Ti_xAl_y composite was produced by sintering TiO_2/Al bulk,which wasmade by squeeze casting.DTA analysis indicated that the reaction between TiO_2 powders andpure Al possessed exothermic characteristic.The reaction products(investigated by X-raydi