Trapped and non-trapped polymer translocations through a spherical pore

2019 ◽  
Vol 150 (2) ◽  
pp. 024904 ◽  
Author(s):  
Li-Zhen Sun ◽  
Chang-Hui Wang ◽  
Meng-Bo Luo ◽  
Haibin Li
Keyword(s):  
Spherical Pore

Thermodynamics and Densification Kinetics in Solid-state Sintering of Ceramics

1999 ◽  
Vol 14 (4) ◽  
pp. 1398-1408 ◽  
Author(s):  
J. L. Shi
Keyword(s):  
Pore Size ◽  
Two Dimensions ◽  
Three Dimensions ◽  
Rate Equations ◽  
Densification Rate ◽  
Interface Tension ◽  
Spherical Pore ◽  
Pore Model ◽  
Set Up ◽  
The Stability

Based on the stability analysis of the closed pores in two dimensions which was determined mathematically with their particle coordination number and dihedral angle, the stability of those in three dimensions was determined with a spherical pore model. The model is set up by first excluding the effect of interface tension, so the pore was supposed to be spherical, and then the tensile stress arisen from the interface tension was supposed to act on this hypothesized spherical pore. On the basis of the spherical pore model, microstructure models based on pores, not grains, for the real powder compacts were first established. Densification kinetics were then determined from the models by the densification rate equations, which were derived by relating density to pore size to grain size ratio, for the intermediate and final stages of sintering. The criteria for pore shrinkage were discussed quantitatively. The derived equations can be used to simulate the relation between densification rate and density during heating with a constant rate and for the explanation of the effects of pore size distribution, agglomerates, and green density on sintering.

Dynamics of the deformation of a spherical pore in a plastic material

1983 ◽  
Vol 24 (1) ◽  
pp. 111-115
Author(s):  
A. V. Attetkov ◽  
V. V. Selivanov ◽  
V. S. Solov'ev
Keyword(s):  
Plastic Material ◽  
Spherical Pore

New type of spherical pore Al alloy foam with low porosity and high strength

2004 ◽  
Vol 47 (5) ◽  
pp. 407-413 ◽  
Author(s):  
Yi Zou ◽  
Deping He ◽  
Jiaqiao Jiang
Keyword(s):  
High Strength ◽  
Al Alloy ◽  
Spherical Pore ◽  
New Type ◽  
Al Alloy Foam ◽  
Low Porosity

Knudsen Diffusion in the Sequentially Linked Spherical Pore.

1998 ◽  
Vol 31 (4) ◽  
pp. 644-648 ◽  
Author(s):  
Soong-Hyuck Suh ◽  
Nam-Ho Heo ◽  
David Nicholson
Keyword(s):  
Knudsen Diffusion ◽  
Spherical Pore
Sign in / Sign up

Export Citation Format

Share Document