Characterisation And Application Of Nickel Cubic Boron Nitride Coating Via Electroless Nickel Co Deposition PDF Download
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Author | : Nor Bahiyah Baba |
Publisher | : |
Total Pages | : 0 |
Release | : 2019 |
Genre | : Electronic books |
ISBN | : |
Download Characterisation and Application of Nickel Cubic Boron Nitride Coating Via Electroless Nickel Co-Deposition Book in PDF, ePub and Kindle
The chapter describes the characterisation and application of nickel cubic boron nitride (Ni-CBN) coatings using the electroless nickel co-deposition method. Two different types of substrates were used, that is, high-speed steel (HSS) and carbide. The characterisation of Ni-CBN coating was conducted using Field Emission Scanning Electron Microscope (FESEM) JSM-7800F coupled with Energy-Dispersive X-ray (EDX). As for the application, coated end mill cutting tools were inserted into DMU 50 CNC machine to conduct the machining testing. Cutting speed, feed rate, and depth of cut were chosen for the Taguchi L9 3-level factors. Taguchi analysis was employed to determine the optimal parameters for the Ni-CBN (HSS) surface finish. The ANOVA evaluation was used to identify the most significant effect on surface finish parameters. The FESEM images prove that the nano-CBN powders were embedded in the Ni-CBN coatings and are uniformly distributed. The findings show Ni-CBN-coated tool life is 195 minutes compared to the uncoated is 143 minutes. The surface roughness, Ra values using Ni-CBN-coated tools ranges between 0.251 and 0.787 Œom, whereas the uncoated tools Ra values between 0.42 and 1.154 Œom. It can be concluded that Ni-CBN HSS cutting tools reduce tool wear and extend tool life. The Taguchi optimum machining condition obtained is 1860 RPM spindle speed, 334 mm/min feed rate, and 2 mm depth of cut.
Author | : Fabienne Delaunois |
Publisher | : CRC Press |
Total Pages | : 426 |
Release | : 2019-11-18 |
Genre | : Electroless plating |
ISBN | : 9781138605800 |
Download Electroless Nickel Plating Book in PDF, ePub and Kindle
Electroless Nickel Plating: Fundamentals to Applications provides a complete and actualized view of electroless nickel plating, thus greatly improving the accessibility of knowledge on the subject. It touches upon all aspects of electroless nickel, from the fundamentals (including thermodynamics of electroless plating, bath chemistry, and substrate preparation) to more applied areas of the field such as bath replenishment, composite coatings, post-treatments, polyalloys, graded and multilayer coatings, ultrasound assistance, applications, and properties. Contributed to by a variety of international authors to ensure different points of view and interests are addressed, this book stands as the first complete and updated state-of-the-art text on electroless nickel in the twenty-first century. It also serves as the first technical book with a strong emphasis on nickel-boron. It also focuses on environmental aspects. Including cutting-edge content presented sufficiently extensive to be directly useful to the practitioner, this book is aimed at materials scientists, metallurgists, and other professionals working with electroless nickel plating.
Author | : Chatchawal Wongchoosuk |
Publisher | : BoD – Books on Demand |
Total Pages | : 229 |
Release | : 2022-10-26 |
Genre | : Technology & Engineering |
ISBN | : 1803564644 |
Download Characteristics and Applications of Boron Book in PDF, ePub and Kindle
Boron is a chemical element with three valence electrons for forming covalent bonds, resulting in many compounds. Doping/integration of boron atoms into other atoms provides new wonder materials with unique physical, chemical, and electrical properties. This book provides an overview of the research and developments of boron-based materials such as boron nitride, boron clusters, boron doping, boron compounds, and so on. Chapters cover all aspects of boron-based materials including theoretical backgrounds of structure and properties, computer simulation, synthesis techniques, device fabrication, characterizations, and current state-of-the-art applications.
Author | : American Society for Testing Materials. Committee B-8 on Electrodeposited Metallic Coatings |
Publisher | : |
Total Pages | : 82 |
Release | : 1959 |
Genre | : Technology & Engineering |
ISBN | : |
Download Symposium on Electroless Nickel Plating Book in PDF, ePub and Kindle
Author | : American Society for Testing Materials. Committee B-8 on Electrodeposited Metallic Coatings |
Publisher | : |
Total Pages | : 67 |
Release | : 1959 |
Genre | : Nickel-plating |
ISBN | : |
Download Symposium on Electroless Nickel Plating Book in PDF, ePub and Kindle
Author | : Joseph Shammas |
Publisher | : |
Total Pages | : 129 |
Release | : 2016 |
Genre | : Boron nitride |
ISBN | : |
Download Characterization of Cubic Boron Nitride Interfaces with in Situ Photoelectron Spectroscopy Book in PDF, ePub and Kindle
Cubic boron nitride (c-BN) has potential for electronic applications as an electron emitter and serving as a base material for diodes, transistors, etc. However, there has been limited research on c-BN reported, and many of the electronic properties of c-BN and c-BN interfaces have yet to be reported. This dissertation focused on probing thin film c-BN deposited via plasma enhanced chemical vapor deposition (PECVD) with in situ photoelectron spectroscopy (PES). PES measurements were used to characterize the electronic properties of c-BN films and interfaces with vacuum and diamond. First, the interface between c-BN and vacuum were characterized with ultraviolet PES (UPS). UPS measurements indicated that as-deposited c-BN, H2 plasma treated c-BN, and annealed c-BN post H2 plasma treatment exhibited negative electron affinity surfaces. A dipole model suggested dipoles from H-terminated N surface sites were found to be responsible for the NEA surface. Then, Si was introduced into c-BN films to realize n-type doped c-BN. The valence structure and work function of c-BN:Si films were characterized with XPS and UPS measurements. Measurements were unable to confirm n-type character, and it is concluded that silicon nitride formation was the primary effect for the observations. Finally, XPS measurements were employed to measure the band offsets at the c-BN/diamond interface. Measurements indicated the valence band maximum (VBM) of c-BN was positioned ~0.8 eV above the VBM of diamond.
Author | : Paul Bryron Bedingfield |
Publisher | : |
Total Pages | : |
Release | : 1993 |
Genre | : |
ISBN | : |
Download Studies of Electroless Nickel-boron Alloy Coatings Book in PDF, ePub and Kindle
Author | : Georgi G. Gavrilov |
Publisher | : |
Total Pages | : 200 |
Release | : 1979 |
Genre | : Electroless plating |
ISBN | : |
Download Chemical (electroless) Nickel-plating Book in PDF, ePub and Kindle
Author | : G. O. MALLORY |
Publisher | : |
Total Pages | : 15 |
Release | : 1971 |
Genre | : |
ISBN | : |
Download The Properties of Electroless Nickel-boron Alloys and Their Applications Book in PDF, ePub and Kindle
Author | : AMS B Finishes Processes and Fluids Committee |
Publisher | : |
Total Pages | : 0 |
Release | : 1989 |
Genre | : |
ISBN | : |
Download ELECTROLESS NICKEL-THALLIUM-BORON OR NICKEL-BORON PLATING Book in PDF, ePub and Kindle
This specification covers the engineering requirements for electroless deposition of a nickel-thallium-boron or nickel-boron coating on various substrates and properties of the deposit.