Influence of the skin and pinch effects on formation of the structure of porous powder metallurgy materials in electropulse sintering

1990 ◽  
Vol 29 (11) ◽  
pp. 889-893 ◽  
Author(s):  
V. M. Kaptsevich ◽  
K. E. Belyavin ◽  
D. V. Min'ko ◽  
A. A. Gurevich ◽  
L. L. Maksimenko
Keyword(s):  
Powder Metallurgy ◽  
Porous Powder

The Use of Transient Liquid Phases in Powder Metallurgy

2021 ◽  
Vol 1016 ◽  
pp. 69-76
Author(s):  
Herbert Danninger ◽  
Raquel de Oro Calderon ◽  
Christian Gierl-Mayer
Keyword(s):  
Powder Metallurgy ◽  
Liquid Phase ◽  
Transient Liquid Phase ◽  
Liquid Phase Sintering ◽  
Porous Powder ◽  
Material Transport ◽  
Liquid Phases ◽  
Short Period ◽  
Constant Quantity ◽  
Transient Liquid Phases

Liquid phase sintering is most widely known in its variant „persistent liquid phase sintering“, in which case the liquid phase is present in constant quantity during the entire isothermal period. There is however also the variant „transient liquid phase“, the melt being present only for a short period in the first stage of sintering and then solidifying through diffusional processes. In this presentation, the preconditions for both variants are presented, in particular with regard to the starting materials. The benefits of transient liquid phases are described, both for sintering – to accelerate material transport, contact formation and microstructural homogenization compared to standard solid state sintering – and for transient liquid phase bonding, a brazing variant which is an attractive method for joining porous powder compacts. Both techniques are highly useful in particular for ferrous powder metallurgy precision components, etc.

Mechanism of infiltration of porous powder-metallurgy parts

JOM ◽  
1964 ◽  
Vol 16 (11) ◽  
pp. 901-905 ◽  
Author(s):  
C. G. Goetzel ◽  
A. J. Shaler
Keyword(s):  
Powder Metallurgy ◽  
Porous Powder

Pressure drop in sheet porous powder-metallurgy materials

1978 ◽  
Vol 14 (1) ◽  
pp. 51-52
Author(s):  
V. I. Chursin ◽  
V. M. Ul'yanov
Keyword(s):  
Powder Metallurgy ◽  
Pressure Drop ◽  
Porous Powder

Experimental data on the rupturing pressure of porous powder metallurgy materials

1973 ◽  
Vol 12 (1) ◽  
pp. 78-81
Author(s):  
E. I. Pavlovskaya ◽  
Yu. P. Matveev ◽  
B. I. Voronin ◽  
L. M. Samoilova
Keyword(s):  
Experimental Data ◽  
Powder Metallurgy ◽  
Porous Powder
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