Deformation of Chemically Crosslinked Polyethylene Foam. 1. Thermal Deformation of Polyethylene Foam

2014 ◽  
Vol 41 (10) ◽  
pp. 39-44
Author(s):  
A.G. Dement'ev ◽  
G.N. Matyukhina ◽  
A.V. Pankratov
Keyword(s):  
Cellular Structure ◽  
Thermal Deformation ◽  
Force Effect ◽  
Inverse Creep

An investigation was made of the influence of the cellular structure on the coefficient of linear thermal deformation and inverse creep of chemically crosslinked polyethylene foam PPE-3M. The dependence of deformability on the nature of the force effect and on the temperature when exposed to the force effect at the stage of production of chemically crosslinked polyethylene foam was established.

Experimental study of thermal deformation of honeycombed PCM cooled mirror in resonator

2002 ◽  
Vol 12 (4) ◽  
pp. 271-280 ◽  
Author(s):  
Feng Sun ◽  
Wenfeng Yu ◽  
Zuhai Cheng ◽  
Yaoning Zhang
Keyword(s):  
Experimental Study ◽  
Thermal Deformation

Metallographic analysis of M2 high speed steel granules

2019 ◽  
pp. 78-85
Author(s):  
L. E. Afanasieva
Keyword(s):  
Solid Solution ◽  
Cellular Structure ◽  
High Speed ◽  
Solution Structure ◽  
Supersaturated Solid Solution ◽  
High Speed Steel ◽  
Metallographic Analysis ◽  
M2 High Speed Steel ◽  
Melt Composition

The article is devoted to the metallographic analysis of the M2 high-speed steel granules. The study is based on the investigation of the microstructure of the M2 high-speed steel granules obtained by melt atomization. It is demonstrated that granules of similar size can harden both by chemically separating and chemically non-separating mechanism. These last ones have supersaturated solid solution structure of the liquid melt composition, a dispersed dendritic-cellular structure and an increased microhardness HV = 10267±201 MPa.

scholarly journals The Influence of Pipe Bending Curvature on H2-O2 Gaseous Detonation Wave Front

2021 ◽  
Vol 11 (9) ◽  
pp. 3951
Author(s):  
Hui Zhao ◽  
Huiyuan Li ◽  
Haitao Zhao ◽  
Leisheng Li ◽  
Jian Li
Keyword(s):  
Detonation Wave ◽  
Pressure Distribution ◽  
Wave Front ◽  
Cell Size ◽  
Chemical Reaction ◽  
Cellular Structure ◽  
Gaseous Detonation ◽  
External Boundary ◽  
Propagation Characteristics ◽  
Detonation Wave Front

The influence of different bend curvatures on the detonation wave propagation was analyzed by an advanced numerical simulation system. The mechanism of propagation properties is revealed by cellular structure, internal and external boundary pressure distribution, propagation process of detonation wave and chemical reaction. The cellular structure and detonation wave front of bend with different curvature are very different. The simulation results show that the detonation wave with regular cell structure propagating through the curved parts induces detonation cell size increased by diffraction near the inner wall while detonation reflected on the bottom surface resulting in decrease of cell size. Detonation wave was affected by the rarefaction wave and compression wave in the bent pipe. The pressure distribution of the bend shows that the peak pressure in the 450 curvature is the largest, which should be paid more attention in industrial design. The chemical reaction could indicate the propagation characteristics of detonation wave, and different propagation characteristics have different profiles of chemical components.

CELLULAR STRUCTURE AND BIOLOGY OF DUPUYTREN’S DISEASE

Hand Clinics ◽  
1999 ◽  
Vol 15 (1) ◽  
pp. 21-34
Author(s):  
James J. Tomasek ◽  
Melville B. Vaughan ◽  
Carol J. Haaksma
Keyword(s):  
Cellular Structure ◽  
Dupuytren’S Disease ◽  
Dupuytren's Disease
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