Influence of specific energy expenditures in electric-discharge sintering on the structure and properties of a copper-tin-abrasive composite

1986 ◽  
Vol 25 (8) ◽  
pp. 667-669 ◽  
Author(s):  
A. A. Baidenko ◽  
T. I. Istomina ◽  
V. P. Popov ◽  
A. I. Raichenko ◽  
M. Sh. Gol'dberg ◽  
...  
1996 ◽  
Vol 34 (9-10) ◽  
pp. 505-507
Author(s):  
V. P. Popov ◽  
A. M. Shatokhin ◽  
A. I. Raichenko ◽  
S. V. Goncharov ◽  
V. A. Nazarenko

1980 ◽  
Vol 19 (9) ◽  
pp. 591-592
Author(s):  
A. I. Raichenko ◽  
L. V. Zabolotnyi ◽  
O. N. Ryabinina ◽  
V. V. Pushkarev

1976 ◽  
Vol 15 (8) ◽  
pp. 602-606 ◽  
Author(s):  
A. I. Raichenko ◽  
G. L. Burenkov ◽  
A. F. Khrienko ◽  
V. P. Litvinenko

2007 ◽  
Vol 534-536 ◽  
pp. 613-616
Author(s):  
K.E. Belyavin ◽  
D.V. Minko ◽  
N.V. Reshnetikov

A technology of hardening porous materials of titan powders has been elaborated. The technology is based on passing alternating current with duration of ~10-1…101 s through porous (35…40%) blanks made by method of Sintering by Electric Discharge (SED) by passing a pulse of current with duration of ~10-5…10-3 s. The influence of technological regimes of porous blanks treatment on their structure and properties is investigated. Geometry and dimension of contact necks between powder particles of obtained samples are evaluated. Variations of porosity and strengths as well as microstructure of porous samples materials before and after treatment are investigated. Optimum range of treatment technological regimes is determined within which porosity of 30…35% with maximum strength values.


Refractories ◽  
1994 ◽  
Vol 35 (9) ◽  
pp. 296-297 ◽  
Author(s):  
A. I. Slosman ◽  
S. V. Martenin

1986 ◽  
Vol 25 (2) ◽  
pp. 113-115 ◽  
Author(s):  
A. I. Raichenko ◽  
A. S. Morozov ◽  
V. P. Popov

1998 ◽  
Vol 55 (1) ◽  
pp. 47-53 ◽  
Author(s):  
Ole Kristian Berg ◽  
Eivind Thronæs ◽  
Gunnbjørn Bremset

Smaller virgin spawners of a stunted population of brown trout (Salmo trutta) had higher specific energy content than repeat spawners, indicating that once maturation has started, the trout does not completely recover from its first spawning. Males had higher amounts of total and specific energy after spawning compared with females (adjusted for length differences). The greatest energy expenditures were recorded among spawning females (specific total energy losses of about 20%, which were twice the losses of male spawners). Repeat females lost 40% of their fat content. The gonads of the females accounted for 20% of the total protein content. The loss in carcass protein and fat for the spawners was greater than the corresponding loss in visceral fat and protein. Survival rates paralleled the amounts of energy expended in reproduction. Overall survival rate of first-time spawning males (females) was about 0.90 (1.00), while the corresponding value for repeat spawners was about 0.65 (0.50). It is predicted that brown trout from a stunted population should make a relatively small investment in reproduction and thus represent a case of low investment among iteroparous fish species.


1976 ◽  
Vol 15 (9) ◽  
pp. 703-705 ◽  
Author(s):  
O. N. Ryabinina ◽  
A. I. Raichenko ◽  
A. D. Verkhoturov ◽  
E. A. Shavlovskii ◽  
L. A. Kotlyarenko

1976 ◽  
Vol 15 (10) ◽  
pp. 754-759
Author(s):  
A. I. Raichenko ◽  
M. Z. Kol'chinskii ◽  
D. A. Levina

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