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Wayne K. Daye, Thomas W. Pelletiers, II
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Thomas W. Pelletiers, II, Wayne K. Daye
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Thomas W. Pelletiers, II, Wayne K. Daye
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Thomas W. Pelletiers, II, Wayne K. Daye
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Wayne K. Daye, Thomas W. Pelletiers, II
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Thomas A. Wolfe, John L. Johnson, Pankaj K. Mehrotra
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J. Baumeister, D. Lehmhus, J. Weise
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Image
Halide-flux inclusion (rounded granules) in the joint between an actuator a...
Available to PurchasePublished: 01 January 1987
Fig. 107 Halide-flux inclusion (rounded granules) in the joint between an actuator and an attachment bracket of aluminum alloy 6061 that were joined by dip brazing using an Al-12Si brazing alloy
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Image
ATR, PAS, and DRS spectra of a granule containing DPDA, MPDA, and DA. The b...
Available to PurchasePublished: 01 January 1986
Fig. 12 ATR, PAS, and DRS spectra of a granule containing DPDA, MPDA, and DA. The band at 1695 cm −1 (indicated by an asterisk) is due to carboxylic acid. The estimated depth of the infrared beam into the sample is shown in parentheses.
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Image
in Metallography and Microstructures of Powder Metallurgy Alloys
> Metallography and Microstructures
Published: 01 December 2004
Fig. 3 Edge-retention technique in which dark Al 2 O 3 granules (right) are added as a reinforcer to the epoxy resin. Not all of the pores are open, which indicates that Al 2 O 3 additions necessitate extended polishing times. Fe-0.8C specimen (7.0 g/cm 3 ) pressed at 550 MPa (40 tsi
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Image
Aluminum open-porous foam with embedded expanded glass granules for evapora...
Available to PurchasePublished: 30 November 2018
Fig. 7 Aluminum open-porous foam with embedded expanded glass granules for evaporator applications
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Book Chapter
Processing of Powder Metallurgy Bronze and Brass
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006106
EISBN: 978-1-62708-175-7
Abstract
Bronze and brass alloys are two key classes of materials in copper-base powder metallurgy applications. They are often compacted using mechanical or hydraulic pressing machines. This article provides an overview of the powder pressing process, providing information on the powder properties of bronze and brass and the roles of lubricant and compaction dies in the pressing process. It discusses the structural defects that originate during the compaction process. The article also describes the major factors that influence the sintering response in bronze, prealloyed bronze, brass, and nickel-silver.
Book Chapter
Properties and Selection of Powder Metallurgy Copper and Its Alloys
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006138
EISBN: 978-1-62708-175-7
Abstract
Selection of the process steps used, powder chosen, and lubricant choice have marked effects on the quality of a sintered component. This article describes the alloy composition, mechanical and structural properties, processing routes, and advantages of the common members of the copper alloy family, namely, pure copper, brass, and bronze, which all aid in the selection of the suitable material for structural and bearing applications. It outlines the structural applications of nickel silver alloys.
Book Chapter
Production of Copper and Copper Alloy Powders
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006139
EISBN: 978-1-62708-175-7
Abstract
This article describes the fundamentals of various techniques used for the production of copper and copper alloy powders. These include atomization (water, air, and gas), oxide reduction, and electrolysis. The article discusses the effects of electrolyte composition and operating conditions on the characteristics of copper and copper alloy powders.
Book Chapter
Copper-Infiltrated Steels
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006076
EISBN: 978-1-62708-175-7
Abstract
The two most important classes of materials that are manufactured via infiltration methods are copper- and silver-infiltrated refractory metals and refractory carbides, and copper-infiltrated steels. This article focuses on copper-infiltrated steels and discusses the basic requirements for infiltration, which is a technique that is only applicable to material systems that meet certain requirements. It addresses these requirements and describes the conventional (partial) infiltration process of powder metallurgy (PM) steel. The materials used in the process, such as matrix and infiltrant, are discussed. The article also details several criteria used to evaluate the performance of an infiltration process. It concludes with information on alloy steels and fully infiltrated steels.
Book Chapter
Pressing and Sintering of Copper Powders
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006105
EISBN: 978-1-62708-175-7
Abstract
Development of the properties of copper powder metallurgy parts is affected by pressing and sintering processes used in the production of components, such as contacts, carbon brushes, and friction materials. This article briefly describes the powder properties of copper and discusses the roles of lubricant and compaction dies in pressing of copper powders. It explains the structural defects that originate during the compaction process of PM parts. The article also provides information on sintering, re-pressing, and re-sintering of copper PM parts.
Book Chapter
Processing and Characterization of Ceramic Powders
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003052
EISBN: 978-1-62708-200-6
... a description of the comminution process (wet and dry milling methods), it discusses batching and mixing operations and granulation methods. The article also deals with the effect of process variables and the steps involved in chemical synthesis, including preparation from solution and gas-phase reactions...
Abstract
This article explains how ceramic powders are made. It begins by briefly describing the raw materials used in structural clay products, whitewares, refractories, and advanced ceramics. It then examines various additives that promote uniformity at different stages of the process. After a description of the comminution process (wet and dry milling methods), it discusses batching and mixing operations and granulation methods. The article also deals with the effect of process variables and the steps involved in chemical synthesis, including preparation from solution and gas-phase reactions, filtration and washing, and powder recovery techniques. It concludes with a discussion on characterization, centering on size distribution analysis, specific surface area, density, porosity chemical composition, phase, and surface composition.
Book Chapter
Molding Compounds
Available to PurchaseBook: Composites
Series: ASM Handbook Archive
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003370
EISBN: 978-1-62708-195-5
... Abstract Molding compounds are plastic materials in varying stages of pellets or granulation that consist of resin, filler, pigments, reinforcement, plasticizers, and other ingredients ready for use in a molding operation. This article describes the material components and physical properties...
Abstract
Molding compounds are plastic materials in varying stages of pellets or granulation that consist of resin, filler, pigments, reinforcement, plasticizers, and other ingredients ready for use in a molding operation. This article describes the material components and physical properties of sheet molding compounds (SMC). The three types of resin paste mixing techniques, such as batch, batch/continuous, and continuous, for an SMC operation are reviewed. The article discusses the design features and functional operations of the two types of SMC machines, namely, continuous-belt and beltless machines. It explains the formulation and processing of bulk molding compounds and reviews molding methods for bulk molding compounds, including compression, transfer, and injection molding. The effects of the fiber type and length and the matrix type on thermoset bulk molding compounds are discussed. It describes the four injection molding processes of injection molding compounds such as feeding, transporting, injecting, and flowing.
Image
Spray drying (fountain mode) atomizes milled slurry using a pressure nozzle...
Available to PurchasePublished: 30 September 2015
Fig. 4 Spray drying (fountain mode) atomizes milled slurry using a pressure nozzle, removing solvent and producing free-flowing granules.
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Image
Liquid droplet interaction with heterogeneous powder bed. (a) Schematic of ...
Available to PurchasePublished: 15 June 2020
Fig. 8 Liquid droplet interaction with heterogeneous powder bed. (a) Schematic of shear flow generated upon drop impact and granulation. Source: Ref 34 . (b) Schematic of tortuous permeation pathway. Source: Ref 35
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Image
Attenuated total reflectance (ATR) spectroscopy, photoacoustic spectroscopy...
Available to PurchasePublished: 15 December 2019
Fig. 12 Attenuated total reflectance (ATR) spectroscopy, photoacoustic spectroscopy (PAS), and diffuse reflectance spectroscopy (DRS) spectra of a granule containing diperoxydodecanedioic acid, monoperoxydodecanedioic acid, and dodecanedioic acid. The band at 1695 cm −1 (indicated
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Image
Four major variations of vertical plating cell design. (a) Flooded and coun...
Available to PurchasePublished: 01 January 1994
granules. Source: Ref 35 . (d) Gravitel plating cell with insoluble anodes. Source: Ref 36
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Book Chapter
Production of Carbide Powders
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006052
EISBN: 978-1-62708-175-7
... of the appropriate constituent powders, they must be properly combined to produce graded powders that meet specific requirements of processing and properties. The required powders are mixed and milled in the presence of an organic binder and solvent and subsequently dried to produce uniform granules for pressing...
Abstract
This article discusses the methods and procedures used to extract, purify, and synthesize tungsten carbide powder, metal, and other refractory carbide/nitride powders used in hard metal production. Selection of powders, additives, equipment, and processes for making ready-to-press hard metal powders is also discussed. The article also provides information on the emerging technologies for tungsten carbide synthesis and binders in hard metal production, such as cobalt, iron, and nickel.
Image
Examples of electron beam melting and casting processes. (a) Button melting...
Available to PurchasePublished: 01 December 2008
remelting. (c) Drip melting of horizontally or vertically fed feedstocks. (d) Cold hearth refining/melting. (e) Floating zone melting. (f) Investment casting. (g) Pelletizing (manufacture of pellets from scrap and other materials for scrap recycling). (h) Atomization and granulation of refractory
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Book Chapter
Aluminum Foams—Processing, Properties, and Applications
Available to PurchaseSeries: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006495
EISBN: 978-1-62708-207-5
... beads, vermiculite, or expanded clay pellets have also been described. The hollow spheres can be made of glass, ceramic, fly ash, or metal and provide for a homogeneous, perfectly closed-pore, and mostly very fine foam structure. The hollow granules can be incorporated into the aluminum melt by mixing...
Abstract
This article describes manufacturing procedures that produce aluminum foams and have since become industrially important and successful. It discusses the foaming of melts by blowing agents and foaming of melts by gas injection. The article focuses on aluminum foams based on the Foaminal technology, because those foams dominate the technical applications of aluminum foams. It also discusses the mechanical properties of metal foams, such as general compression behavior, elastic behavior, strain-rate sensitivity, tensile behavior, ductility, fatigue, and mechanical damping. The article concludes with information on the applications of highly porous metal structures.
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