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Physical Characterization of Nickel-Titanium SMA, Design and applicati

Physical Characterization of Nickel-Titanium SMA, Design and applicati

D Meher Sashank; Katravath Devulanaik; Ajit Behera

LAP Lambert Academic Publishing
2020
pokkari
In day to day life, human life cannot progress without the help of materials. From the ancient periods to the modern age, humans showed much importance to the materials and their production. As technology progressed, more and more new types of materials were found to optimize and improve the machines or tools. Many alloys and material forming techniques were invented to ease the processes or manufacturing. There are many materials which have their specific properties like hardness, toughness, machinability, weld-ability etc. One of the materials are called as "Smart materials". The term smart has been used in significance of their ability to respond according to the temperature. These materials change their shape into trained shape when temperature is raised to the trained temperature. These smart alloys are also called as "shape memory alloys". The application of Ni-Ti alloys was restricted to actuators, pseudo-electric parts and biomedical instruments. So, as the Ni-Ti alloys have good mechanical properties and reliable shape memory ability, this alloy is used to make a thermal encoded security lock. Design of thermal encoding system is made.
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Electro-deposition of Ni/Ni-Al composite on Cu substrate

Electro-deposition of Ni/Ni-Al composite on Cu substrate

Sesadeba Pani; Ashribad Das; Ajit Behera

LAP Lambert Academic Publishing
2020
pokkari
The content of the book is as follows: Coating and Different Types of Deposition/Coating Techniques. Compressed summary about the electrodeposition process with advantages, disadvantages and their applications over other coating methods with diagram. Also provide a short explanation on pulsed electrodeposition, electrocodeposition, different baths used for nickel electroplating. Brief literature reviews on pure Ni and Ni-Al composite coatings were arranged in chapter 2. A detailed experimental investigation and about different characterization methods were provided in chapter 3. In chapter 4 a discussion about the results obtained from the experiment. In chapter 5 conclusions of the present work were reported and provided with future work. References were provided in the last chapter.
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Tribology Characteristics of Austenitic Steel

Tribology Characteristics of Austenitic Steel

Sesadeba Pani; Amit Praharaj; Ajit Behera

LAP Lambert Academic Publishing
2020
pokkari
Coefficient of friction and wear rate of different austenitic steel materials are investigated and compared. Experiments are conducted on a pin/ball-on-disk apparatus on different types of ball materials such as austenitic stainless steel SS304 and austenitic stainless steel SS316 sliding against EN-31 disk. The experiments are performed on a group of specimens for duration of 5 min for various loads of 10,15 and 20 N in magnitude with sliding velocity of 1,1.5,2 m/s. The results show that the frictional force varies with duration of rubbing, normal load and sliding velocity. In general, frictional force increases for a certain duration of rubbing and after that it remains constant for the rest of the experimental time. The results obtained reveal that the frictional force increases with the increase in normal load for all the tested materials. It is also found that frictional force increases with the increase in sliding velocity for all the materials investigated. For the same operating condition, the magnitudes of the frictional force and wear rate are different for different materials depending on normal load and sliding velocity.
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Instability analysis of antifriction bearings using wear particle

Instability analysis of antifriction bearings using wear particle

Sesadeba Pani; Sukant Kumar Senapati; Ajit Behera

LAP Lambert Academic Publishing
2020
pokkari
Most maintenance practitioners have become familiar with machine condition monitoring through the use of portable systems such as vibration, oil analysis, thermography. These portable systems are typically utilized as part of predictive maintenance program that is expensive and time consuming. With recent advances in the field of lubricant condition monitoring utilize the concept of real time condition monitoring with the help of expert systems that is highlighted through a case study. The present work describes the development of an expert system that can be used to determine the condition of lubricating oil in circulation in a centralized lubrication system attributed for lubricating antifriction bearings. It begins with basic concepts of oil analysis, lubrication, with analysis of bearings and finally the development of an expert system pertinent to wear paricle analysis.The lubricant contaminant monitoring through advanced diagnostic techniques for critical equipment is a very powerful maintenance tool in any production plant. It predicts the condition of the oil as well as the machine in advance failure mode.
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Database Design Essentials

Database Design Essentials

Ishwarya M V; Sharmila L; Ajitha P R

International Book Market Service Ltd
2024
pokkari
Database design, the art and science of structuring data to meet specific needs, is a cornerstone of efficient and reliable information systems. A well-designed database not only ensures data integrity and consistency but also optimizes performance and scalability. This comprehensive guide delves into the essential principles and techniques for designing robust and effective databases.We will explore the fundamental concepts of data modeling, normalization, indexing, and query optimization, providing practical insights and real-world examples to empower developers and data analysts. By mastering these core principles, you will be equipped to create databases that are not only functional but also adaptable to evolving business requirements.By mastering these fundamental concepts, practitioners can build databases that are not only functional but also adaptable to evolving business needs, ensuring seamless data management and insightful analysis.
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