This article summarizes the current and future trends of the development of electron microscope,related technique and high resolution quantitative electron microscopy The importance of the studies of structures and defects in materials by combining direct

In order to achieve a high numerical aperture (N.A.) in Pr3+- doped PbF2- GaF3-InF3- CdF2- ZnF2 (PGICZ) fiber for optical amplification of telecommuncation at 1.3μm, systematic investigations have been implemented using NaPo3- BaF2- ZnF2- PbF2 (FPG) and

The compositions of α(α2)/γ phase equilibria in Ti-Al-Nb-Cr system have been determined by the multicomponent diffusion couple-electron probe method. The edge faces of the phase-region α(α2)/γ have been expressed by the plane equations. The caIcuIated re

The dissimilar phase equilibrium in ternary system was analyzed by grand potentialmethod, which determined the calculation way of dissimilar phase equilibrium in ternary system bygrand potential method. The Gibbs free energies of α and β in Ti-Al-Nb syste

The different technologies of heat treatment have been researched in a TbDyFe alloywith [112] preferred orientation. lt has been found that the annealing can influence the microstructureand magnetostriction in the TbDyFe alloy. We have got the optimum tec

Epoxy resin (EP)/Polyhexamethylene Carbonate Diol (PHMCD) systems were pre-pared by empolying two types of mixing methods. The reIationship between PHMCD size distribution and impact Strenght of EP/PHMCD was investigated by scanning tunneI microscoPy (STM

It has been studied by DMA that the relaxations such as α, βand γ of PA1010/66copolymers are reIated to their compositions. As PA66 content is increased, β relaxation temperature(Tβ) rises up and γ relaxation temperature (Tγ) comes down on the whole, but

The thermal stability of aluminium oxynitride (AION) spinel powder has been inves-tigated by heat-treatment of small samples in a gas autoclave with a graphite furnace at different pressures (0.2 and 5 MPa) and temperatures (1330～1730℃) in N2 and N2+10% C

The erosive wear properties of ultra-high molecular weight polyethylene (UHMWPE)were tested on the gas-blasting equipment. The effects of impact angle, impact velocity and the hardness of the erodents on the erosive wear of UHMWPE were determined. By usin

The amorphous Ge/SiO2 superlattices have been prepared by rf sputtering with poIycrystalline Ge and quata targets in Ar ambient. Small angle X-ray diffraction measurement was carried to invedigate the structure of the samples, the results indicate the abr

The Mossbauer transmission speotroscopy and the Tc of Fe77Ce7B16 alloy samples isochronally annealed are measured. The hyperfine field distribution P(H) curves are calculated from the Mossbauer spectra. The variation of exchange interaction for amorphous

Under the conditions of electron-irradiation, high temperature and high-strength electrical field, the conductivity increasing and then even breakdown of α-Al2O3 ceramic plates for the IC package material were observed. Its dielectric properties also chan

Amorphous carbon nitride films have been formed by magnetic field filtered carbon ion deposition. The optical and electrical characteristics of samples deposited in different N2 partial pressure have been studied using FTlR, XPS, optical absorption spectr

In this paper, three kinds of voltage Stabilizers are chosen out from additives used in plastics industry and the mechanisms and application ranges of these stabilizers are investigatedby experiments, lt is shawn ty test results that they can be classify

SnO2 nanocrystalline powder doped with variable ratios of Fe have been preparedty sol-gel method. The phase and grain-size, and their evolution of the powder have been studied by XRD, TEM, DTA and Mossbauer spectrometer. For the pewder with Fe/Sn atomic r

Ribbon-shaped fibers were melt-spun by petroleum-and naphthalene-basedmesophase pitches, respectively The pitch fibers were stabilized and carbonized. It was shown that ribbon-shaped pitch fibers were formed easily and owned higher orientation than circul

Single component adsorption and coadsorption behavior of Ag(NH3); and methylene blue on two kinds of ACFs, aCtivated with steam and ZnCl2 respectively, were studied. The adsorption of methylene blue on these two kinds of ACFs could be described with Langm

Nano-scale multilayers of CNx/NbN have been prepared by ion beam sputtering deposition. The effects of such deposition parameters as substrate temperature, bombarding energy individual layer thickness, etc, were studied. TEM and X-ray analysis confirmed t

Aluminum alloys LD10 and LY12 were implanted with nitrogen ions by Plasma lmmersion lon lmplantation (P111) and dose range of 2×1017～1×1018N+.cm-2. The depth profile of nitrogen and structure of the implanted sudece layer were investigated by AES. TEM and

Upon 5h of milling, the structure of stoichiometric Al3Ti transformed from the as-cast ordered DO22 to disordered FCC and remains unchanged till milling time of 60h. The structural evolution of Al67Ti23Mn8 alloy with ordered L12 was as follows: ordered FC

An in-organic powder BaPb1-2xEu2xO3-x of Eu doped BaPbO3 was formed bysolid reaction and its structure has been determined by XRD etc.The unit cell of the powder appears distorted perovskite with Eu, Pb in the center of octahedron. The photon absorption a

Semiconductor GaAs microcrystallites were successfully embedded in SiO2 thin films by RF magnetron co-sputtering technique. Structures of the thin films were characterized by transmisson electron microscopy X-ray diffraction and X-ray photoelectron micros

Effect of magnetic field treatment on crystallization and magnetic properties of melt-spun Nd5.5Fe66B18.5Cr5Co5.Nd4.5Fe77B18.5 and Nd10.5Fe70B7.0Zr2.5Co10 powders were inves- tigated. Results show that an externally applied magnetic field during heat trea