Effect of heat treatment on the kinetics of the development of a crack in carbon steels cyclically deformed in active media

1975 ◽  
Vol 10 (2) ◽  
pp. 212-214
Author(s):  
M. O. Levitskii ◽  
S. I. Mikitishin
Keyword(s):  
Heat Treatment ◽  
Carbon Steels ◽  
Active Media ◽  
Kinetics Of

Magnetic Properties, Nanostructure, and Ordering Kinetics of Nb Additive FePtCu Films

2010 ◽  
Vol 638-642 ◽  
pp. 1743-1748
Author(s):  
G.J. Chen ◽  
Y.H. Shih ◽  
Jason S.C. Jang ◽  
S.R. Jian ◽  
P.H. Tsai ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Activation Energy ◽  
Magnetic Properties ◽  
Heating Rates ◽  
Fept Alloy ◽  
Ordering Kinetics ◽  
Nb Content ◽  
Kinetics Of ◽  
Nb Addition ◽  
Microstructure And Magnetic Properties

In this study,the (FePt)94-xCu6Nbx (x=0, 2.87, 4.52, 5.67) alloy films were prepared by co-sputtering. The effects of Nb addition content and heat treatment on the microstructure and magnetic properties of the polycrystalline FePtCu films are reported. Our previous experiments showed that the ordering temperature of the (FePt)94Cu6 films reduced to 320 °C, which is much lower than that of the FePt alloy. However, the grain growth after heat treatment limited the practical application in recording media. By adding the Nb content in the (FePt)94Cu6 film, the grain sizes of the films can be adjusted from 50 to 18nm, even for the films annealed at temperature as high as 600°C. DSC traces of as-deposited disorder films at different heating rates, to evaluate the crystallization of the order phase, revealed that the addition of Nb enhanced the activation energy of ordering from 87 kJ/mol to 288 kJ/mol for the (FePt)94-xCu6Nbx (x=0 and 2.87, respectively) films. The reduction of the grain size and the corresponding increase in the activation energy of the Fe-Pt-Cu-Nb films might result from the precipitation of the Nb atoms around the ordering FePt phase. The (FePt)94-xCu6Nbx (x=2.87) film showed a coercive force of 13.4 kOe and the magnetization of 687 emu/cc.

scholarly journals Kinetics of the active media of nuclear-pumped lasers

1993 ◽  
Vol 11 (4) ◽  
pp. 655-661 ◽  
Author(s):  
A.M. Boichenko ◽  
A.V. Karelin ◽  
O.V. Sereda ◽  
S.I. Yakovlenko
Keyword(s):  
Numerical Simulation ◽  
High Power ◽  
Short Wavelength ◽  
Noble Gases ◽  
Excimer Lasers ◽  
Active Media ◽  
Metal Vapors ◽  
Kinetics Of

Numerical simulation of active media nuclear-pumped lasers on noble gases and their mixtures with metal vapors are presented. Prospects of creation of high-power short-wavelength nuclear-pumped excimer lasers are discussed.

Kinetics of inactivating human parvovirus B19 and porcine parvovirus by dry-heat treatment

Transfusion ◽  
2008 ◽  
Vol 48 (4) ◽  
pp. 790-790 ◽  
Author(s):  
Johannes Blümel ◽  
Albert Stühler ◽  
Herbert Dichtelmüller
Keyword(s):  
Heat Treatment ◽  
Parvovirus B19 ◽  
Porcine Parvovirus ◽  
Human Parvovirus B19 ◽  
Dry Heat ◽  
Dry Heat Treatment ◽  
Kinetics Of

Synthesis kinetics of aluminomagnesia spinel by heat treatment in a medium of metallic heat carrier

Refractories ◽  
1982 ◽  
Vol 23 (3-4) ◽  
pp. 203-206
Author(s):  
N. F. Fedorov ◽  
A. P. Gavrilov ◽  
N. I. Ivanov ◽  
N. M. Stepovaya
Keyword(s):  
Heat Treatment ◽  
Heat Carrier ◽  
Aluminomagnesia Spinel ◽  
Kinetics Of
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