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foam structures

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006093
EISBN: 978-1-62708-175-7
... granules Fig. 1 Structures made of hollow metal spheres Fig. 2 Optical micrographs of (a) aluminum, (b) zinc, and (c) lead foams Fig. 9 Example of FeNi36 feedstock with integrated 3M-S60HS hollow glass microspheres after injection. Source: Ref 49 Fig. 10 Scanning...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006495
EISBN: 978-1-62708-207-5
.... The article concludes with information on the applications of highly porous metal structures. aluminum foams gas segregation foaming investment casting mechanical properties powder metallurgy solidification porosity FOAMS AND OTHER HIGHLY POROUS MATERIALS with cellular structure find...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003375
EISBN: 978-1-62708-195-5
...Comparison of selected properties and attributes for lightweight structural core materials Table 1 Comparison of selected properties and attributes for lightweight structural core materials Property or attribute Honeycomb Balsa Foam Density (typical), kg/m 3 (lb/ft 3 ) Expanded...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005656
EISBN: 978-1-62708-198-6
... metal/coating due to the limitations of traditional porous metals for numerous open-cell-structured metals, such as titanium-base foams and trabecular metal. cancellous-structured titanium cobalt-chromium beads fiber-metal mesh joint replacement metallic implant materials orthopedic surgery...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005351
EISBN: 978-1-62708-187-0
...) aluminum foundries are screens and refractory foam filters ( Fig. 6 , 7 ). Screens, for all intent and purpose, are two-dimensional structures with evenly spaced round or square holes. Regardless of composition, that is, metal or fiberglass being the most common, they function primarily as sieves. Sieves...
Book Chapter

By Sam Nasser
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005684
EISBN: 978-1-62708-198-6
... Abstract Physically, tantalum is a dark, blue-gray, lusterless metal that exists in two crystalline forms: an alpha-phase with a body-centered cubic structure, and a brittle beta-phase with a tetragonal orientation. This article tabulates the physical and material properties of tantalum...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003014
EISBN: 978-1-62708-200-6
... 160 70 220 Hydrogen Sodium borohydride 140 1200 2700 Carbon dioxide Sodium bicarbonate 110 550 120 (a) In cm 3 /100 in. 2 /24 h, atmospheric Thermoplastic structural foam properties Table 2 Thermoplastic structural foam properties Properties Polyethylene Flame...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005339
EISBN: 978-1-62708-187-0
.... , and Manchang G. , Damping and Sound Absorption Properties of Particle Reinforced Al Matrix Composite Foams , Compos. Sci. Technol. , Vol 63 , 2003 , 569 – 574 10.1016/S0266-3538(02)00215-4 45. Prakash O. , Sang H. , and Embury J.D. , Structure and Properties of Al-SiC Foam...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006535
EISBN: 978-1-62708-207-5
... solidifies, the structural properties of the aluminum material are determined and can be influenced only to a limited extent by further process stages, such as heat treatment or deformation. Therefore, the metallurgical state of the ready-to-pour aluminum melt is of decisive significance for the product...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005675
EISBN: 978-1-62708-198-6
... or scaffold for bone formation. Porous structures are derived by using porous templates, porogens, and foaming agents. Substances are often employed that evolve carbon dioxide or other gaseous substances upon heating treatments. Table 5 lists typical processes. Table 5 Processes for introducing...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003020
EISBN: 978-1-62708-200-6
... smaller sections of the structure and then assemble them. As previously discussed, the use of foam cores to form three-dimensional sections provides specific design advantages for the liquid molding process, although molding pressures must be maintained below the level at which the foam is compressed...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003407
EISBN: 978-1-62708-195-5
...-structural, high-density foam former from standard-modulus carbon unidirectional, often in prepreg form and consolidated in an autoclave. Mast tools ( Fig. 11 ) are typically constructed from a high degree of unidirectional fibers for length stability, and may often be constructed from four quadrants...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003479
EISBN: 978-1-62708-195-5
.... The skis have a layered structure, consisting of an aluminum/epoxy/fiberglass top layer, a rigid foam/wood/honeycomb core, a reformed thermoplastic cap, a layer of epoxy/fiberglass prepreg, a polyurethane rigid foam core, another epoxy/fiberglass bottom laminate, and a PE running surface. The multilayered...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005254
EISBN: 978-1-62708-187-0
... Abstract This article discusses the sequence of operations for producing a foam pattern for casting. It provides information on expandable polystyrene (EPS), the most preferred material for manufacturing lost foam patterns. The article describes the major functions of pattern molding...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006405
EISBN: 978-1-62708-192-4
... the structures for the two types of additives. Fig. 18 Foam inhibitors Mineral oils, which are effective lubricants at low temperatures, become less effective lubricants at high temperatures. At high temperatures, their film-forming ability (in the hydrodynamic lubrication regime) diminishes because...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003404
EISBN: 978-1-62708-195-5
... the solution from the tank when the mandrel/ nickel combination is removed from the tank and will also prevent contamination of the solution by the dissolved metal tubing. The backup structure provides the electroformer with a means to suspend the mandrel in the electroforming tank, but it must also...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006508
EISBN: 978-1-62708-207-5
... Abstract Lost foam casting is a sand casting process in which the mold consists of an evaporative polystyrene foam pattern embedded in sand. It is especially well suited for making complex parts with convoluted features such as engine blocks, transmission cases, and cylinder heads. This article...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.9781627082075
EISBN: 978-1-62708-207-5
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003016
EISBN: 978-1-62708-200-6
... or froth form. As the PUR reacts and expands, it creates heat and pressure and forms a hollow cell structure. The plastic part must be fixtured or supported during the foaming process in order to maintain its shape as it cools. In some situations, foaming is possible while the part is still cooling...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0009015
EISBN: 978-1-62708-187-0
.... The article concludes with a description of the structure and properties of a casting. casting solidification casting design liquid-liquid contraction solid-solid contraction liquid-solid contraction SHAPE CASTING, as a metal forming process, offers considerable flexibility and wide scope...