In this paper the theory of the amorphous rare earth-transitionmetal(RE-TM)alloy film which is used as magneto-optical recording mediaand the properties of TbFeCo film were discussed.The amorphous TbFeCo filmwith perpendicular magnetization has been prepa

The results of X-ray structural and differential thermal analysesshow that the crystallization of Ni-P coatings starts from about 300℃ andfinishes near 400℃,and the stable structure obtained consists of Ni anddisperse Ni_3 P phases.Using the isothermal an

The variations of the saturation magnetostriction constantand the magnetization-flux of the metallic glasses Fe_(80) Si_4B_(14)C_2,Fe_(39) Ni_(39)-Si_8B_(12)MN_2 and (Fe_(80) Ni_(20))_(78) Si_8 B_(14)were studied by using the tension-magne-tization with a

The acoustic emission(AE) study during deformation of dualphase steels consisting of ferrite(F) and pearlite(P)/martensite(M) indicates thatthe AE peak in the yielding region always appears at the beginning of themacroplastic deformation.After macroyieldi

Hydrogenation behavior and some phase transformations occuringin Ti-6Al-4V have been studied.Under one atmospheric pressure of hydrogenthere is a hydrogen absorption peak at 570℃.During hydrogenation,hydrogensdissolve inβ phase causing an increase in d_(2

It is shown that the existing models describing the hardening be-haviour of a metal sheet can't fully meet the requirement of those materialsand the hardening curves expressed in the figure of lno—lnε are waved(forexample,08Al Steel and 10 Steel).A medel

Theoretical calculation indicates solute hydrogen makes the criti-cal stress intensity factor for dislocation emission from a crack tip decreaseddue to the reduction of the friction stress of lattice by hydrogen;Emittedfrom a crack tip,disilocation carrie

The reaction mechanism during the synthesis of superconductorYBa_2 Cu_3 O_(7-(?)) has been investigated by TG-DTA thermal analysis and X-raydiffraction method.The starting materials used are carbonats,nitrades andcoprecipitation of oxalates of Y,Ba and Cu

Thermal stabilities of the orthorthombic,tetragonal and orthorhom-bic YBa_2 Cu_3 O_(7-(?)) containing a small amount of tetragonal phase during heatingand cooling process at 50—900℃ have been studied by TG-DTA method.Theexperimental results show that the

In this paper the crystallized morphology of directional soli-dified Ni-base alloy during laser rapid melting and the effect of cooling rateon the solidified microstructnre have been studied.The results show that thecrystallized morphology during laser ra

It is shown that the spectral transmission in the range ofluminous wavelength of the transparent films have been an important sense fordevelopment of a transparent heat-mirror films and an optical filters.The filmswith a D/M unsymmetrical optical systems,

Glasses of ZBYA,ZBLA and AYR were synthesized from whichthe polished samples of 5 different thickness 0.15—2.7mm and lateral dimen-sions 2×1.5cm were Obtained.The infrared absorption coefficents of glassSamples were derived from the plots of In(I/T) to l,

Glass with TiN coating can be used as heat mirror.Resultsshow that reflectivity of glass coated with TiN film thicker than 91nm isgreater than 75% Adherance between TiN film and glass is fairly good andthe corrosion resistance of TiN film is excellent.Hea

The orientated fibrous morphological structure of epoxy resinshas been developed on the thin alumina layer as an metal-polymer interphase inthe case of the laminary reinforced materials or the structural adhesive bon-ding.The formation,development and cha

According to the material mechanics and fracture mechanics th-eory,the failure distribution function of structure component of polymer mat-erials has been obtained by using the method of random process.Reliabilitylife about structure component of polymer