It shows how to use ion beam equipment in the polymer industry, as well as how to use it. Superhydrophobic silk fabric surfaces with highaspectratio nanostructures were fabricated using ion beam treatment. The swri surface engineering capabilities are used by. The subject matter is divided into 20 chapters each presented at a tutorial level rich with fundamental science and experimental results. Introduction to surface coating and modification for metallic biomaterials.
This book presents the method of ion beam modification of solids in realization, theory and applications in a comprehensive way. Ion beam modification of materials may be achieved by ion implantation or ion irradiation. The history of ion beam sources began with lord ernest rutherfords experiments. This is an ideal application of lia technology due to the.
The focused ion beam fib system is an important tool for understanding and manipulating the structure of materials at the nanoscale. The springer reference work handbook of manufacturing engineering and technology provides overviews and indepth and authoritative analyses on the basic and cuttingedge manufacturing technologies and sciences across a broad spectrum of areas. Ion beam treatment of polymers, second edition presents the results of polymer investigations and technique development in the field of polymer modification by highenergy ion beams. Ion beam applications sa the company, founded in 1986, together with its subsidiaries together referred to as the group or iba seek to develop key technologies for the diagnosis and treatment of cancer and provides efficient and reliable solutions with an unequaled accuracy. Nitrotec surface treatment its development and application in the design and manufacture of. The emerging capability to produce high average power 10300 kw pulsed ion beams at 0. Surface engineering with diffusion technologies chapter 3. Surface coatings are an important approach to changing surface properties for the requirements of a given application. Thus ionbeam therapy is a better choice for treatment to avoid highrisk surgery, widespread damage from other forms of radiation therapy like x. However, the ion source used for this operation needs to have specific design and performance. Ion beam treatment of polymers 1st edition elsevier. Effect of ar ion beam pretreatment of polyethylene. Surface treatment of biomaterials by ionbeam processes. Manufacturers utility companies biomedical industry government agencies projects range from smallbatch, singleday processing jobs to longterm research and development projects.
The concept of ion beam deposition is an ion beam that sputters a target in proximity to the substrate. The objectives of the coordinated research project crp on modification of materials by ion treatment for industrial applications were to develop economically acceptable surface modification techniques leading to thick treated layers, to predict ion beam mixing and impurity atom migration during and after implantation, and to evaluate the. Ion beam treatment of polymers 2nd edition elsevier. Ion beam treatment of polymers contains results of polymer investigations and techniques development in the field of polymer modification by high energy ion beams. Application aspects from medicine to space kindle edition by alexey kondyurin, marcela bilek. Xin, jp, zhu, xp and lei, mk 2011 on timeofflight ion energy deposition into a metal target by highintensity pulsed ion beam generated in bipolarpulse mode. Surface nanomodification induced by a neutralized ion beam 281 surface modification measurements and observations. The ion pulse rapidly heats a thin surface layer to melt using typically only 3x10i3 ions per pulse. However, the industrial application of ionbeam technologies ion implantation in the metal sector is still rather limited, and is restricted to relatively few niche areas. Diffusion methods of surface hardening as previously mentioned, surface hardening. Applications and relevant theoretical aspects of surface wetting.
To investigate ion beam induced surface polishing or roughening it is convenient to measure changes of roughness parameters. Ion beam implantation is method of surface modification when surface. Ion beam applications sa engages in the design, manufacture, and marketing of cancer treatment and diagnosis equipment. The promise of ion beam cancer therapy berkeley lab. By tuning the energy of the ions or the ion current the sputtering process may be tailored to result in everything from fast material removal to gentle polishing of. Ion beam surface treatment ibest is a thermal process that does not significantly change the composition of the sample. This book is intended for specialists in polymer science who have interest to use an ion beam treatment for improvement of polymer properties, for specialists in physics who search a new application of ion beam and plasma equipment and also for students who look for future fields of high technology. For ion beam treatment, the modified surface layer become carbonized and, thus, has an indentation hardness higher. Using the ebsd, sem and tem methods, the structure of surface layer of polycrystalline niti alloy samples was examined after the modification of material surface by the pulsed action of meanenergy silicon ion beam. The implantation process requires a source of ions and a means to accelerate them toward the surface.
The work presented in this book deals with ion beam processing for basic. Focused ion beams fib novel methodologies and recent. Ion beam implantation is method of surface modification when surface properties must be significantly changed and bulk properties of material must be saved. Nanostructured superhydrophobic silk fabric fabricated. Dualbeam platforms, combining a highresolution scanning electron microscope hrsem and an fib column, additionally equipped with precursorbased gas injection systems gis. The current status of the science and technology related to coatings, thin films and surface modifications produced by directed energy techniques is assessed in materials surface processing by directed energy techniques. An ion gun directs energetic argon ions toward the sample, which is placed so that the surface is bombarded at a controlled angle. Handbook of manufacturing engineering and technology. Purchase ion beam treatment of polymers 2nd edition. Surface modification of materials by ion implantations.
The ion beam irradiated silk fabrics were characterized for wettability, as well as other physical properties unique to silk. Major areas of application include sensors, energy saving coatings for solar devices, absorbersreflectorsemitters, cutting and forming tools, protective environmentresistant or decorative coatings, and information storage and microelectronic devices. Ion beam surface treatment is a patented process developed by qm technologies that heattreats a metal surface by bombarding it with ions via a. Ion beam surface treatment microsecond heattreating. Surface treatment of biomaterials is becoming an increasingly popular method of improving device function and biocompatibility without the expense and time. Factors affecting the choice of these surfacehardening methods are discussed in the section process selection in this article. Materials surface processing by directed energy techniques. Ion beam deposition is a physical vapor deposition pvd technique.
The structure of modified surface layer the highstrength 30crmnsini2 steel was investigated by optical, scanning electron and transmission electron microscopy as well as xray diffraction methods. Combining this system with an electron beam creates a dualbeam a single system that can function as an imaging, analytical and sample modification tool. Numerical modelling and experimental measurements of pulsed ionbeam surface treatment michael o. To mitigate such complications surface treatment process of the outer surface, such as ion beam assisted deposition are investigated in a retrospective study from 1992 to 2007, to prove if the surface treatment of the catheters is a sufficient solution. Processes include ion implantation of gaseous ions and ion beamassisted deposition ibad of metals, ceramics, and diamondlike carbon dlc. Plasma treatment is a widely used technique for altering the surface properties of polymers. In this chapter, a study of the surface treatments of nb flat samples and srf single cell cavities via gas cluster ion beam gcib technique will be reported. Finally, the use of ion beams for the direct treatment of cancerous tissue was a particularly novel and interesting application of ion beams. Ion beam surface treatment 5 ibest technology uses repetitive pulsed ion beam energy to deposit energy on the surface of materials. Handbook of ion beam processing technology book osti. The worlds foremost experts in ionbeam cancer therapy meet at oaklands claremont hotel october 26 through 29 to examine the international success of this unique therapy, explore future developments, and ask tough questions including why this extraordinary medical advance is making great strides in europe and asia but is lagging in the country where it was invented and developed.
The ions can alter the elemental composition of the target if the ions. Ion beam techniques had also developed apace, particularly those based on plasma immersion ion implantation or alternative techniques for large area surface treatment. The treated surfaces were investigated by scanning electron microscopy and contact angle measurement. The present paper deals with the surface modification of polyethylene foils in a capacitively coupled industrial r.
This book is intended for specialists in polymer science who have interest to use an ion. Download it once and read it on your kindle device, pc, phones or tablets. Since the late 1970s various approaches have been made world wide in order to establish ion implantation as an industrial surface treatment of metal components. The primary effect of ion beam treatment therefore is morphology modification, with little chemical effect. Nexus ibe350si ion beam etch system get improved process control, reduced footprint and a fieldupgradable design with veecos nexus ibe350si ion beam etching system. With increasing working pressure up to 5mtorr, the contact angle of ar ion beamtreated pet substrate was dramatically decreased to 45, indicating a hydrophilic surface by ar ion beam treatment. An ion beam source generates a flux of ions with high energy, which is translated to high velocity in a lowpressure atmosphere, prior to impacting a surface to be ionimplanted. A new capability for rapid melt and resolidification of surfaces, author stinnett, r. We measured all the main parameters relating to horizontal and vertical features of the surface profile. Ion beam applications in surface and bulk modification of. In ion beam sputter deposition the goal is to add a thin film to the substrate surface to change its material properties. However, further increase of working pressure led to.
Several defect production and migration mechanisms contribute to changes in the nearsurface composition of an alloy during ion bombardment, e. Ion beam surface treatment ibest is a thermal process that does not. Ion implantation is used in semiconductor device fabrication and in metal finishing, as well as in materials science research. Ion implantation is a major application of plasma processing in a variety of applications in which the surfaces of materials are to be treated. Surface nanomodification induced by a neutralized ion beam.
Surface treatment of biomaterials by ion beam processes. Ionbeam techniques in an ionbeam instrument, a beam of heavy ions, for example ga or ar, is used to bombard a target material, thereby sputtering atoms from the target surface. A key determinant of biocompatibility for implantable biomedical devices is the interaction of its surfaces selection from ion beam treatment of polymers, 2nd edition book. A low angle of ion incidence with respect to the sample surface gradually removes surface.
Structure of the nearsurface layer of niti on the meso. Ion implantation and surface modification plasma processing and. Ultraprecision surface finishing by ion beam and plasma. An ion source can be operated during a deposition process to provide extremely beneficial effects on thin film nucleation and packing density. Ion implantation is a lowtemperature process by which ions of one element are accelerated into a solid target, thereby changing the physical, chemical, or electrical properties of the target. Investigation of surface treatments of niobium flat.
Laser surface roughening of ptfe has also been studied as a potential method for increasing bond strength to ptfe. It shows how to use ion beam equipment in the polymer industry, as well as how to use it to produce new polymer materials. The ion beam milling method uses highenergy argon ion bombardment to remove material or modify the surface of a sample. This new technique uses high energy, pulsed le500 ns ion beams to directly deposit energy in the top 120 micrometers of the surface of any material. Makes harder outer layer and also introduces compressive stresses.
Plasma and ion beam surface treatment of polyethylene. Ion beam treatment of a solid target causes a significant transformation to the structure and properties of the treated surface. Longer ion beam treatment time is assumed to increase surface area for bonding, which in turn increases peel strength. These topics are commonly encountered in industries as well as in academia. Atomistic mechanisms in beam synthesis and irradiation of. Another ion beam treatment technology named carbosurf tm lead to surface carbonization that resulted in forming a charge dissipative top surface layer on polymer materials providing them with tunable, variable thermal optical properties in a wide range of values. These are unique approaches to altering the near surface region of a wide range of solid materials in a manner that is independent of many of the constraints associated with. The concept of a movable workpiece has allowed realizing within one vacuum chamber three methods of ion beam surface treatment. Ion beam surface treatment best uses a pulsed, high energy 0. Ion beam etching process for highdensity spintronic.
1414 750 1140 211 1096 654 894 1069 589 486 623 961 635 1189 353 290 1227 684 1311 1384 1266 288 1388 375 1110 1136 112 1451 214 921 918 386 65 205 892 338 895 612 411