Investigation of Adhesion Mechanism in Molten Silicon/Ceramics Systems

Silicon ◽  
2020 ◽  
Author(s):  
Zakaria Hadef ◽  
Kenza Kamli
Keyword(s):  
Molten Silicon ◽  
Adhesion Mechanism

A TEM investigation of silicon nitride whiskers

1987 ◽  
Vol 45 ◽  
pp. 160-161
Author(s):  
Tapan Roy
Keyword(s):  
Silicon Nitride ◽  
High Resolution ◽  
Ceramic Matrix Composites ◽  
High Resolution Electron Microscopy ◽  
Molten Silicon ◽  
Matrix Composites ◽  
Ceramic Fibers ◽  
Resolution Electron ◽  
Point To Point ◽  
Technological University

Ceramic fibers are being used to improve the mechanical properties of metal matrix and ceramic matrix composites. This paper reports a study of the structural and other microstructural characteristics of silicon nitride whiskers using both conventional TEM and high resolution electron microscopy.The whiskers were grown by T. E. Scott of Michigan Technological University, by passing nitrogen over molten silicon in the presence of a catalyst. The whiskers were ultrasonically dispersed in chloroform and picked up on holey carbon grids. The diameter of some whiskers (<70nm) was small enough to allow direct observation without thinning. Conventional TEM was performed on a Philips EM400T while high resolution imaging was done on a JEOL 200CX microscope with a point to point resolution of 0.23nm.

Integrin-like RGD-dependent cell adhesion mechanism is involved in the rapid killing of Onchocerca microfilariae during early infection of Simulium damnosum s.l.

Parasitology ◽  
2001 ◽  
Vol 122 (4) ◽  
pp. 433-438 ◽  
Author(s):  
H. E. HAGEN ◽  
S. L. KLÄGER
Keyword(s):  
Cell Adhesion ◽  
Intermediate Host ◽  
Blocking Agent ◽  
Early Infection ◽  
Adhesion Mechanism ◽  
Simulium Damnosum ◽  
Dependent Cell ◽  
Species Specific

Injection trials with compatible and non-compatible Onchocerca species into S. damnosum s.l., the vector of human and bovine onchocerciasis, demonstrated that the rapid killing of microfilariae within the blackfly's haemocoel is species specific. In the presence of the peptide RGDS as a blocking agent for integrin-like receptors of haemocytes, the survival of O. ochengi microfilariae in its natural intermediate host was significantly increased. This increased survival 24 h p.i. correlated with a significant decrease of apoptosis levels in the microfilariae following a 2 h exposure to the haemolymph in vivo. These findings suggest that haemocytes are directly involved in the killing of Onchocerca microfilariae in the blackfly.

Viscosity of molten silicon and the factors affecting measurement

2003 ◽  
Vol 249 (3-4) ◽  
pp. 404-415 ◽  
Author(s):  
Yuzuru Sato ◽  
Yuichi Kameda ◽  
Toru Nagasawa ◽  
Takashi Sakamoto ◽  
Shinpei Moriguchi ◽  
...  
Keyword(s):  
Molten Silicon ◽  
Factors Affecting

Structural features of a carbon plastic material infiltrated with molten silicon

2005 ◽  
Vol 46 (6) ◽  
pp. 419-422 ◽  
Author(s):  
A. P. Garshin ◽  
V. A. Kurnukin ◽  
V. I. Kulik ◽  
A. S. Nilov
Keyword(s):  
Plastic Material ◽  
Structural Features ◽  
Carbon Plastic ◽  
Molten Silicon

Wetting and infiltration of graphite materials by molten silicon

1995 ◽  
Vol 32 (3) ◽  
pp. 377-382 ◽  
Author(s):  
Jian-Guo Li ◽  
Hans Hausner
Keyword(s):  
Molten Silicon

Simulation Research on Control Technology of Micro-Particle Adhesion to Surface

2011 ◽  
Vol 181-182 ◽  
pp. 366-371
Author(s):  
Hui Liu ◽  
Yan Qiang Li
Keyword(s):  
Numerical Simulation ◽  
Electrostatic Force ◽  
Actual State ◽  
Control Technology ◽  
Particle Adhesion ◽  
Adhesion Mechanism ◽  
Simulation Research ◽  
Mechanical Models ◽  
Analysis Of Results ◽  
Simulation Package

The micro particle brings much harm to some industrials, agriculture and human activities. The mechanical models of micro particle adhesion to the surface and the control, disposal technology have become very important for prevention from particle aggradations. For the sake of deeply comprehending and researching the adhesion mechanism as well as kinematics characteristic, numerical simulation of particle adhesion was made based on compute simulation package, the analysis of results and relevant comparison demonstrate that it can well simulate actual state and the results of simulation show that the capillary force (Fc) is the biggest, by contrast, the electrostatic force (Fes) is the smallest. Further more, it has some valuable instructions and helpful references for control of micro-particle adhesion to surface. At last, the outlook of issue was put forward.

The Dissolution Rate of Silica in Molten Silicon

1980 ◽  
Vol 19 (8) ◽  
pp. 1573-1574 ◽  
Author(s):  
Hiroshi Hirata ◽  
Keigo Hoshikawa
Keyword(s):  
Dissolution Rate ◽  
Molten Silicon

scholarly journals STRESS-STRAIN STATE IN EMBEDMENT OF REINFORCEMENT IN CASE OF REPEATED LOADINGS

Vestnik MGSU ◽  
2016 ◽  
pp. 28-38
Author(s):  
Ilshat Talgatovich Mirsayapov
Keyword(s):  
Cyclic Loading ◽  
Strain State ◽  
Endurance Limit ◽  
Cyclic Creep ◽  
Inclined Crack ◽  
Stress Strain ◽  
Adhesion Mechanism ◽  
Plastic Deformations ◽  
Stress Strain State ◽  
Mechanical Phenomena

The author offer transforming the diagram of ideal elastic-plastic deformations for the description of the stress-strain state of embedment of reinforcement behind a critical inclined crack at repeatedly repeating loadings. The endurance limit of the adhesion between concrete and reinforcement and its corresponding displacements in case of repeated loadings are accepted as the main indicators. This adhesion law is the most appropriate for the description of physical and mechanical phenomena in the contact zone in case of cyclic loading, because it simply and reliably describes the adhesion mechanism and the nature of the deformation, and greatly simplifies the endurance calculations compared to the standard adhesion law. On the basis of this diagram the author obtained the equations for the description of the distribution of pressures and displacements after cyclic loading with account for the development of deformations of cyclic creep of the concrete under the studs of reinforcement.

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