Physical and theoretical aspects of a new vacuum arc control technology-self arc diffusion by electrode: SADE

1999 ◽  
Vol 27 (4) ◽  
pp. 961-968 ◽  
Author(s):  
M. Homma ◽  
H. Somei ◽  
Y. Niwa ◽  
K. Yokokura ◽  
I. Ohshima
Keyword(s):  
Vacuum Arc ◽  
Control Technology

Preparation and characterization of thin films of carbon nitride

1995 ◽  
Vol 53 ◽  
pp. 104-105
Author(s):  
L. Wan ◽  
R. F. Egerton
Keyword(s):  
Carbon Nitride ◽  
Arc Discharge ◽  
Ion Beam ◽  
Chemical Vapor ◽  
Reactive Sputtering ◽  
Vacuum Arc ◽  
Specimen Preparation ◽  
Bonding Structure ◽  
Electron Energy Loss

INTRODUCTION Recently, a new compound carbon nitride (CNx) has captured the attention of materials scientists, resulting from the prediction of a metastable crystal structure β-C3N4. Calculations showed that the mechanical properties of β-C3N4 are close to those of diamond. Various methods, including high pressure synthesis, ion beam deposition, chemical vapor deposition, plasma enhanced evaporation, and reactive sputtering, have been used in an attempt to make this compound. In this paper, we present the results of electron energy loss spectroscopy (EELS) analysis of composition and bonding structure of CNX films deposited by two different methods.SPECIMEN PREPARATION Specimens were prepared by arc-discharge evaporation and reactive sputtering. The apparatus for evaporation is similar to the traditional setup of vacuum arc-discharge evaporation, but working in a 0.05 torr ambient of nitrogen or ammonia. A bias was applied between the carbon source and the substrate in order to generate more ions and electrons and change their energy. During deposition, this bias causes a secondary discharge between the source and the substrate.

Landslide control technology transfer and Challenges in Ethiopia

2015 ◽  
Vol 52 (4) ◽  
pp. 180-184 ◽  
Author(s):  
Mitsuya ENOKIDA ◽  
Satoru TSUKAMOTO ◽  
Kensuke ICHIKAWA ◽  
Yuichi ICHIKAWA
Keyword(s):  
Technology Transfer ◽  
Control Technology
Sign in / Sign up

Export Citation Format

Share Document