scholarly journals Carbide formation upon heat treatment of molybdenum layers deposited on carbon substrates: comparison of experimental data with a cellular automaton model

2008 ◽  
Vol 40 (3-4) ◽  
pp. 786-789 ◽  
Author(s):  
M. Kiniger ◽  
C. Eisenmenger-Sittner ◽  
J. Hell ◽  
B. Schwarz ◽  
H. Hutter ◽  
...  
Keyword(s):  
Experimental Data ◽  
Heat Treatment ◽  
Cellular Automaton ◽  
Cellular Automaton Model ◽  
Carbide Formation ◽  
Carbon Substrates

Carbide formation in the niobium-microalloyed 15Kh2MFA steel during heat treatment

2020 ◽  
Author(s):  
V. G. Teplukhin ◽  
A. S. Tsvetkov ◽  
A. I. Popov ◽  
D. N. Shabalin
Keyword(s):  
Heat Treatment ◽  
Carbide Formation ◽  
15Kh2mfa Steel

A CELLULAR AUTOMATON MODEL FOR COLLECTIVE MOTION OF MICROORGANISMS

2007 ◽  
Vol 40 (9) ◽  
pp. 161-166
Author(s):  
Yasushi Iwatani ◽  
Koichi Hashimoto ◽  
Yuki Deguchi
Keyword(s):  
Cellular Automaton ◽  
Collective Motion ◽  
Cellular Automaton Model

Diffusion Coefficients of Interest for the Simulation of Heat Treatment in Rare-Earth Transition Metal Magnets

2012 ◽  
Vol 727-728 ◽  
pp. 163-168 ◽  
Author(s):  
Marcos Flavio de Campos
Keyword(s):  
Experimental Data ◽  
Heat Treatment ◽  
Activation Energy ◽  
Rare Earth ◽  
Transition Metal ◽  
Impurity Atom ◽  
Diffusion Coefficients ◽  
Arrhenius Equation ◽  
Atom Diffusion ◽  
Essential Input

In the case of the modeling of sintering and heat treatments, the diffusion coefficients are an essential input. However, experimental data in the literature about diffusion coefficients for rare-earth transition metal intermetallics is scarce. In this study, the available data concerning diffusion coefficients relevant for rare-earth transition metal magnets are reviewed and commented. Some empirical rules are discussed, for example the activation energy is affected by the size of the diffusing impurity atom. Diffusion coefficients for Dy, Nd and Fe into Nd2Fe14B are given according an Arrhenius equation D=D0exp (-Q/RT). For Dy diffusion into Nd2Fe14B, Q 315 kJ/mol and D08 . 10-4m2/s.

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