We present a systematic study of the effect of the sputtering parameters on the structure and composition of InSb film. The effect of the sputtering parameters on the crystallographic structure of InSb films is discussed in terms of the kinetic energy of the particle bombarding the growing film. Measurements of the chemical composition show that In to Sb concentration ratio increases with the increase of working pressure because Sb atoms are more rapidly thermalized by collisions with argon atoms during the transport process of the sputtered atoms. And the composition of the films is governed by the Sb re-evaporation process at the surface of the growing films. In to Sb concentration ratio is enhanced by increasing the substrate temperature (essentially) or RF power.

Amorphous InAsSb films and hydrogenated InAsSb films are deposited on substrates of quartz glass and silicon by rf magnetron sputtering technique in different gas ambient. The effect of H addition on structure, optical properties and electrical properties of a-InAsSb is studied. It is found that the bonded hydrogen content increases with increasing H2 to Ar flow rate radio(R). When R is 0.1, Hydrogen addition shifts the optical absorption edge to higher energy, decreases the dark conductivity and improves the photo-sensitivity. However, hydrogen addition produces the crystallization of the film at R>0.1. Moreover the optical gap, dark conductivity and photo-sensitivity of the films have a reverse change compared with that in R=0. These results demonstrate that hydrogen has obvious passivation effects on rf sputtered amorphous InAsSb thin films only at R=0.1.

With the rapid development of society, the demand for steel production is increasing, and the demand of the bar’s quality is getting higher and higher. However, what is constraining the production efficiency of the Bar industry is that the development of NDT of surface crack on the bar is unpleasant. This paper presents a new NDT method which is machine vision-based and fully automatic, and designs an application system which is more viable and practical. The bar non-destructive crack detection system use the Industrial Control Computer as Master Parts. Combine with the CCD image acquisition and the PLC control of the pipeline as a whole. This system utilizes Testing Technology of Fluorescent Magnetic particle, realize machine recognition through the Digital Image Processing Technology. What’s more, this system use the set method of adaptive threshold based on probability of detection and false alarm probability in machine recognition. It has a significant and Practical significance for reducing the computation of the system, improving the processing speed of this system, and meeting the needs of the entire system in real-time requirements.

The method of carbon nanotubes by DC-PCVD is analysed. Growth environment of carbon nanotubes is researched with the substrate temperature at 500°C-900°C.The pressure of gas is 60torr,75torr,90torr.It is appropriate when the temperature is 700°C and the pressure is 75torr.Growth characteristic of carbon nanotubes is researched when the concentration of CH4 ranges is 8%-20%.The diameter of carbon nanotubes is uniform when the concentration of CH4 is low.The diameter is not uniform if the concentration is high.