Changes of interface morphologies and microstructures of Al-Cu alloysduring directional solidification under different thermal gradients were investigated by us-ing a ZMLMC directional solidification apparatus.It was found that there exist two kindsof mor

The effective determination to the morphology,composition and distribu-tion of ball rare-earth phase in pure Al and Al-Mn alloy was studied in this paper.The re-sults show that proper content of rare-earth can globe the polygonal block compound inaluminiu

Thin films of CuInSe_2 have been co-evaporated in vacuum bythree-sources process.The compositions of the films have been controlled by ratio of theelements in the three sources and temperature of the three sources.Satisfactary compositionand single chalco

Anisotropic directional solidified/hot pressed R-Fe-B permanent mag-net alloys are prepared and investigated.The typical composition of the alloys isPr_(19)Fe_(74.5)B_5Cu_(1.5).After directional solidification,a fine-grained columnar structure parallelto

A new approach of estimation of the critical driving force for thethermoelastic martensitic transformation in Cu-Zn-Al alloy is developed.The value of thecritical driving force estimated by measuring the Young′ s modulus of the alloy and find-ing the stor

Oxidation kinetics behavior of Ag_(57)Cu_(38)Ti_5 active brazing filler metal forjoining ceramics was studied by TGA,EDAX and X-ray diffraction.The results show thatthe oxidation kinetics of the Ag-base active brazing filler metal precisely conform to the

The device preparing superfine powder was designed and installed in LPPS.The superfine powders,such as Fe,Si,Ni,Mo,TiAl,Ti_3Al and Si_3N_4,were obtained by vac-uum arc plasma jet evaporation method.The size of the superfine powders are about 5,10,20 and 5

The variations on composition of electrodeposited CdTe thin films withcathodic potentials,electrolyte temperatures and heat treatment temperatures were studiedby using polarographic method.The CdTe thin films where the Cd/Te atomic ratio equalunity was ob

SiC-C gradient coatings were prepared by using thermal Chemical VapourDeposition (CVD) method.The residual stress,microstructure and composition of the gra-dient coatings were inerstigted.It can be indicated that thermal stress and interface stressbetween

Crystals LaMgAl_(11)O_(19) have been grown along α or b axis by usingCzochralski technique.The orientations of all the developed facets on the crystals havebeen determined by means of X-ray and optical methods.Based on Hartman′s theory,the strong PBC vect

Experiment on high purity MgO-Cr_2O_3 refractories with high chromiacontent exposed to a coal slag at 1600℃ has shown that the dense refractories approachingstoichiometrical picrochromite and with MgCr_2O_4 and Cr_2O_3 as structure phases possessdesire re

The adsorption behavior of Au~(3+) onto the acrylic chelating fiber containingamidoxime group was studied.It is concluded that the fiber possesses not only highadsorption capacity to Au~(3+),but also the ability to reduce the Au~(3+) into metallic gold;in

Binary blends of poly(butylene terephthalate)(PBT) and low densitypolyethylene(LDPE)or functionalized LDPE copolymer with dibutylmaleate(LDPE-g-DBS)have been prepared by melt mixing.Morphological analysis of smoothedspecimen,solubility separation and infr

Some recent progress in the study of advanced composite materials in theInstitute of Metal Ressearch,Academia Sinica are briefly reviewedin this paper.Continu-ous fibre,whisker and particle reinforced metal matrix composites are introduced.Physicalmodels,

TiC particle (TiCp)reinforced Ti-6Al-4V alloy matrix composite has beeninvestigated because there is good bonding and compatibility between reinforcement and Tialloy matrix.Ti-6Al-4V alloy containing 15% TiCp had been processed via a P/M routefollowed by

According to the healing or regenerating mechanism in an injuredbio-body,the healing of inner damage as cracking,fracture of fibers and unbound defectsbetween fibers and matrix in composite materials is investigated tentatively.It is proposedthat simulati

The outstanding properties of the structrures of living beings are ensured bybio-materials.It is found that almost all bio-materials are composites,such as bamboo,wood,bone and shell etc.The structures of some ordinary living beings were investigatedand t

The fiber stress in glass fiber reinforced polymer on load,the fiber prestressduring the forming process of materials and the changes of the fiber stress with theenvironmental temperature on load,are measured by using laser interference.The resultsshow th