THEORETICAL ANALYSIS FOR STUDYING THE
FRETTING WEAR PROBLEM OF STEAM GENERATOR
TUBES IN A NUCLEAR POWER PLANT
ABSTRACT



Fretting, which is a special type of wear, is defined as small amplitude relative motion along the contacting interface between two materials. The structural integrity of steam generators in nuclear power plants is very much dependent upon the fretting wear characteristics of Inconel 690 U-tubes. In this stu ....etc

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The carbon nanotubes form a promising tool in the emerging fields of nanotechnology and its reassuring development. The importance lies in the fact that the whole development has been from carbon which forms the basic unit. The future lies in continuous improvement in the required properties of materials by artificially structuring them on nanometer scale and developing processing methods for their manufacture. Thus this topic presents a smooth and effective blending of electronics and chemistry. The day is not far when we could make supercompu ....etc

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INTRODUCTION
This paper is an update of a previous paper authored by Mr. Humphry Udall, former
Director of Research and Development for Thermatool.
The welding of stainless steel tubes differs substantially from the welding of high quality
carbon steel tubes in a number of ways. The most significant difference is in the melting
point of the oxides that are formed on the faying edges during the welding process. The
oxides formed on carbon steel generally melt at a temperature lower than the melting
point of the steel. Since the ox ....etc

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thank u ....etc

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ABSTRACT:-
Nanotechnology is the study and development of particles and even machines on a cellular scale. A single particle of 10-9 has 109 applications. Nanotechnology also improves the lives and safety of persons in every area of endeavor this can be achieved by developing a nanoscale carbon fiber that could revolutionize bullet-proof vests.
In 1991, when the carbon nanotubes have just come out, had been touted as “the next generation of great invention.” Carbon nanot ....etc

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The remarkable properties of carbon nanotubes may allow them to play a crucial role in the relentless drive towards miniaturization at the nanometre scale.

Nanotechnology is predicted to spark a series of industrial revolutions in the next two decades that will transform our lives to a far greater extent than silicon microelectronics did in the 20th century. Carbon nanotubes could play a pivotal role in this upcoming revolution if their remarkable electrical and mechanical properties can be exploited.

Since the first measurements were ma ....etc

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pls send me ppt,abstract,documentation ....etc

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ABSTRACT

Carbon nanotubes (CNTs) are a recently discovered allotrope of carbon. They take the form of cylindrical carbon molecules and have novel properties that make them potentially useful in a wide variety of applications in nanotechnology, electronics, optics, and other fields of materials science. They exhibit extraordinary strength and unique electrical properties, and are efficient conductors of heat. Inorganic nanotubes have also been synthesized. A nanotube is a member of the fullerene structural family, which also includes buc ....etc

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The carbon nanotubes form a promising tool in the emerging fields of nanotechnology and its reassuring development. The importance lies in the fact that the whole development has been from carbon which forms the basic unit. The future lies in continuous improvement in the required properties of materials by artificially structuring them on nanometer scale and developing processing methods for their manufacture. Thus this topic presents a smooth and effective blending of electronics and chemistry. The day is not far when we could make supercompu ....etc

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Presented by:
Santosh Kumar Verma


introduction
The problem considered is that of a general class of nonlinear free boundary problems, such as those characterized by moving boundaries whose motion is not known a priori but must be determined as part of the solution.
Specifically, the problem is concerned with axisymmetric fluid flow in tubes with surface solidification. Initially, the fluid is flowing in a tube with a fully developed velocity and a uniform temperature distribution. A segment of the tube is t ....etc

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