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Book Chapter

By Paul J. Walsh
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0009241
EISBN: 978-1-62708-195-5
... applications bamboo fibers carbon fibers carbonization cotton fibers incandescent lamp filaments interfacial bonding PAN-based carbon fibers pitch-based carbon fibers sporting goods CARBON FIBERS, after a 40 year period of development and use in specialized applications, are now on the brink...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003373
EISBN: 978-1-62708-195-5
... matrix properties justifies the separation of this material into its own category of matrix materials. Pure Carbon Forms Graphite and Diamond Elemental carbon owes its variety and versatility to the nearly equivalent energy between its two primary forms: (1) diamond, where carbon atoms bond...
Book Chapter

Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002141
EISBN: 978-1-62708-188-7
... A type of multirib wheel plunge grinding, designated as skip-rib, with rib spacing on the wheel twice that of the thread pitch, is occasionally used for threads of very fine pitch or for resinoid-bonded wheels where the truing of ribs corresponding to the actual thread pitch would be difficult to carry...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003064
EISBN: 978-1-62708-200-6
... of carbon fibers has dropped and their mechanical properties have increased. This article begins with an overview of the carbon conversion processes, fiber properties and microstructures, and interfacial bonding and environmental interaction of carbon fibers, followed by a detailed discussion on the various...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003422
EISBN: 978-1-62708-195-5
... in the circumferential and radial directions within an array of axial metal rods, which are then replaced by dry yarns. Densification Processing Generally, the best CCCs result from a densification process that fills the open volume of the preform with a dense, well-bonded carbon- graphite matrix. The actual...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003359
EISBN: 978-1-62708-195-5
... strengths, and high stiffness are desired in the composite. Additionally, good off-axis properties result from the strong bonding between aluminum and alumina, and the chemical stability of the fiber aids in producing good elevated-temperature properties ( Ref 3 ). Commercial fibers for reinforcement...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002145
EISBN: 978-1-62708-188-7
...) A change in the angular orientation of the rotational motion (bevel gears) An offset or change in the location of the rotating motion Power transmission gears are normally of coarse pitch and can be very large. Power plant gears as large as 7.3 m (24 ft) have been made. They can transmit tens...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005616
EISBN: 978-1-62708-174-0
... of the weld. Courtesy of GE Because the size of flaws in diffusion bonding is determined by the scale of roughness and contaminations of the surfaces being bonded, both flatness and cleanliness influence the bond quality. Real-time radiography, coupled with a microfocus x-ray source and digital image...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006477
EISBN: 978-1-62708-190-0
... Because the size of flaws in diffusion bonding is determined by the scale of roughness and contaminations of the surfaces being bonded, both flatness and cleanliness influence the bond quality. Real-time radiography, coupled with a microfocus x-ray source and digital image enhancement, has been used...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002465
EISBN: 978-1-62708-194-8
... fiber. Source: Ref 1 A variety of carbon-reinforcing-material types (fiber, fabric, felt, particles) can be bonded together with a carbon or graphite form of a phenolic or pitch resin-matrix system or a CVD carbon- or graphite-matrix system to form carbon/carbon composite shapes. At least six...
Series: ASM Handbook
Volume: 5A
Publisher: ASM International
Published: 01 August 2013
DOI: 10.31399/asm.hb.v05a.a0005725
EISBN: 978-1-62708-171-9
... target efficiency thermal spray coating undercutting SEVERAL KEY PROCESSING STEPS are required to produce optimized thermal spray coatings. For example, to ensure adequate bonding of a coating, it is critical that the substrate be properly prepared. The substrate surface must be clean and usually...
Book Chapter

By Ted A. Slezak
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002146
EISBN: 978-1-62708-188-7
...; the terminology followed in this article is based on “Simplified Practice Recommendation R214-55” (U.S. Department of Commerce). Fig. 4 Standard tooth forms for steel and carbidetip bond saw blades The regular form is the only form available for saws that are finer than 6-pitch in straight teeth...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001389
EISBN: 978-1-62708-173-3
... in the electrodes flows into the workpieces by conduction or convection through the electrode-to-workpiece contact areas. Assuming that the brazing procedure is fundamentally correct and capable of yielding properly bonded workpieces, there are a number of factors that strongly affect the quality of an RB joint...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003051
EISBN: 978-1-62708-200-6
... materials are naturally occurring clays or shales, which have been used in construction for more than 4000 years. The distinguishing manufacturing characteristic is the exposure to elevated temperatures (firing). This must be sufficient to develop a fired bond between the particulate constituents. The bond...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006114
EISBN: 978-1-62708-175-7
... the section. Fine pitch (module <0.75 mm) spur gear teeth present powder filling problems, which are more serious if the face width is large. Helical Gears Helical gears also are commonly made by the PM process. However, in contrast to metal cutting processes, the helix angle of PM gears is limited...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003480
EISBN: 978-1-62708-195-5
... applications. One of the best examples is spacecraft, for which mass and thermal management are critical issues. Candidate Composite Materials A composite material can be defined as two or more materials bonded together ( Ref 2 ). Composites are nothing new in electronic packaging. For example, polymer...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003037
EISBN: 978-1-62708-200-6
... as a structural product appeared just after 1940 in aircraft sandwich panel construction. Most honeycomb used today is adhesively bonded core that is subsequently bonded to facings to form a sandwich panel. Other common types of honeycomb cores presently being produced include metallic cores of corrosion...
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006053
EISBN: 978-1-62708-175-7
... spiraling holes with a fixed pitch. The pitch of holes is determined by the desired pitch of flutes of the solid rod product. Alternatively, extruded rods with straight holes are twisted to achieve desired pitch. Fig. 6 Schematic of the extrusion process Fig. 7 Examples of different...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002185
EISBN: 978-1-62708-188-7
... 99.90+ … … … … 20 C11000 Electrolytic tough pitch copper 99.90+ … … … … 20 C11300-C11600 Silver-bearing electrolytic tough pitch copper 99.96 (including 0.4 Ag) … … 20 C12200 Phosphorus-deoxidized copper 99.90+ (0.02 P) … … … 20 C12500-C13000 Fire-refined...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005242
EISBN: 978-1-62708-187-0
... Abstract This article reviews the basic types of mold aggregates and bonding methods for expendable molds and coremaking. It provides an overview of mold media and the basic types of sands and their properties. The most significant clays used in green sand operations, such as bentonites...