The paper briefly reviewed the developing history, classification and photoconductive mecha-nism of azo photoconductive materials (APM). The intrinsic nature of photoelectronic movement in APM was discussed using the concept of intra- and inter-molecular

In this paper, the effects of composition, structure, inclusion, especilly chemical and structural defects of diamond films on the thermal, electronic, optic, mechanic and chemical properties have been ex-pounded. The new progress of analysis and characte

The dislocation structures formed in a copper single crystal under Cyclic straining were studiedby using an electron channeling contrast (ECC) in the scanning electron microscope (SEM). It was shownthat the SEM-ECC technique can well be used to investigat

475℃ embrittling kinetics and relevant microstructure changes were investigated by internal friction, TEM, Mossbauer spectra. The results showed that the embrittling in Fe-15Cr-4Al and Fe-25Cr-5Al alloys was caused by two processes. In the first age stage

Al2O3, Al2O3 / TiB2 and Al2O3 / TiB2 / SiCw. ceramic materials were produced to further optimise the wear resistance of Al2O3. Friction and wear behaviours of these ceramic materials at the tcmperature range from 25℃ to 900℃ have been studied against ce

A friction force microscope(FFM), which was modified from atomic force microscope(AFM),is introduced in this report. The FFM could be used to collect signal of vertical and lateral force in the same time, to show micro-force function, such as dependence o

Molecular dynamics(MD) and the embedded atom method(EAM) were used to simulate(FCC) Cu tip-to-substrate (a 3.4nm crystal slab) contact at 0.1K via NVT ensemble. Both the load-ing-unloading cycle and the potential energy of the system vs the tip approach w

A special convenient method has been used to measure viscosity in foaming process of molten aluminum in this article. The effects of viscosity and temperature on pore structure have been studied. Pore diameter increases with the decrease of viscosity. Mod

Molecular dynamics simulation of stress induced martensitic transformations in stiochoimetric NiAl has been performed via embedded-atom type potential. With the help of a tensile force,stress induced martensite with 3R structure nucleated near the lower c

Plasma polymerization of benzonitrile (BN) was carried out with RF glow discharge systems (13.56MHz). The structure of polymer was characterized by means of IR,UV-VIS, Elemental Analysis and MS. For the first time the nonresonant opticaI Kerr effect of po

The corrosion rate, dezincification coefficient and polarization curves of boron modified HA177-2 brass with and without surface film were measured; the composition and elements depth distribu-tion of surface film were analyzed by SIMS. The results show t

The interfacial diffusion reaction between PZT and PNN phases in FGM ceramics has been investigated as a function of the sintering temperature and time respectively. The compositional distribution peofiles of the interaction region were examined by electr

By DTA (Differential Thermal Analysis) experiments on magnetic powder of nanostuctured γ-Fe2O3, an exothermal peak which is not repeatable on DTA curve was found. By XRD (X-Ray Difraction) experiments on original sample and its heat-treating samplcs, it w

Scanning tunneling microscope (STM) was used to characterise the surface topography of Polyacrylonitrile (PAN) based carbon fibers beforc and after electrochemical treatment, stretch resistance test and high temperature-treatment. A new kind of structure,

A new type of mica-containing glass-ceramics has been prepared by means of hot-press technique. A unique microstructure was observed by scanning electron microscopy (SEM), i.e., lamellar fluorophlogovite-mica crystals distributed in glass with preferentia

The microstrcture and thermal stability of electrodeposited Nano-Ni were investigated using TEM, X-ray and DSC. The results show that there exists [200] texturc and the free volume is about 0.8% in deposited state of Nano-Ni. The size of (200) varies much

It was showed that the microstructure was composed of α-Al and α-Al13(Fe, V)3 Si phases af ter high-temperature annealing treatment for RS Al-Fe-V-Si Alloy by means of XRD, TEM and EDX analysis. The coarsening kinetics of the particles is in agreement wit

We report an investigation concerning Helium pressure effect on the formation of nanotubes in arc discharge cathodic deposits by thermal gravimetric analysis (TGA) and differential thermal analysis (DTA). Compared with the same thermal analysis of C60/70

The electric conductivity of carbon fibre reinforced cement(CFRC) was studied,the changement of resistivity under cyclic compressive stresses and constant compressive stresses were measured under low stresses.The result shows that there is interrelation b

The different stoichiometric PLT thin films on quartz substrate were prepared by the MOD method. Its nonlinear optical properties were studied by means of Z-scan technique. The results show that the nonlinear optical effects of low La content (<25%) PLT f

In the ITO films deposition by reactive magnetron sputtering, the deposition rate of ITO film will change with the carrying out of sputtering. We provide a new method to monitor the sputtering viel by detecting the characteristic light intensity of plasma

HFCVD metliod was employed to deposit diamond film on silicon substrate. The design of in-letting H2 and CH4 separetely was applied, which made the resistanee of tungsten filament dccrease to 20%,compared to that of HFCVD with mixture inletting. Moreover,

High quality diamond thin films were grown by hot finament chchcal vopr dopsition.Their microstructure and growth processes were studied by means of high-magnification scatring clectron miorosoopy. The study showed that nucleation of diamond was detetrine