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external-pressure infiltration

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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006099
EISBN: 978-1-62708-175-7
...Abstract Abstract This article provides information on the infiltration mechanism of carbide structures. It reviews the basic techniques used for metal infiltration, including dip infiltration, contact filtration, gravity feed infiltration, and external-pressure infiltration. The article...
Book: Casting
Series: ASM Handbook
Volume: 15
Publisher: ASM International
Published: 01 December 2008
DOI: 10.31399/asm.hb.v15.a0005227
EISBN: 978-1-62708-187-0
... Source: Ref 13 Wetting characteristics and threshold infiltration pressures for aluminum/SiC and aluminum/B<sub>4</sub>C systems Table 4 Wetting characteristics and threshold infiltration pressures for aluminum/SiC and aluminum/B 4 C systems Alloy Temperature Surface energy (γ), J/m 2...
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
... the diffusional mass transport limitations, is known as forced flow CVI. In this process, the part to be infiltrated is fixtured in such a way that gases flowing in the reactor are forced to move through the part by pressure gradients, rather than being limited to diffusion due to concentration gradients...
Series: ASM Handbook
Volume: 2A
Publisher: ASM International
Published: 30 November 2018
DOI: 10.31399/asm.hb.v02a.a0006488
EISBN: 978-1-62708-207-5
... as the two main methods of MMC solidification processing. It describes the MCC casting methods, such as sand and permanent mold casting, centrifugal casting, compocasting, and high-pressure die casting. The article discusses the MMC infiltration processes in terms of pressure infiltration casting and liquid...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003421
EISBN: 978-1-62708-195-5
.../glass-matrix composite formed by slurry infiltration followed by hot pressing. (a) Light micrograph of transverse section (some porosity can be seen in this micrograph). (b) Pressure and temperature schedule used during hot pressing of this composite Fig. 3 Scanning electron micrograph...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003420
EISBN: 978-1-62708-195-5
... tape method for titanium-matrix composite fabrication Fig. 2 Schematic of assembly for top-fill pressure infiltration casting Abstract Abstract Metal-matrix composites (MMCs) are a class of materials with a wide variety of structural, wear, and thermal management applications...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002486
EISBN: 978-1-62708-194-8
... applications. The part can be resin impregnated to seal the pores for pressure tightness and improved machinability or to prevent the intrusion of undesired plating chemicals. Infiltration with a lower melting metal than the base material (such as copper-infiltrated steel or copper-infiltrated tungsten...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003397
EISBN: 978-1-62708-195-5
... Fig. 11 Selective laser-sintered tool using stainless steel infiltrated with bronze. Courtesy of DTM Corporation Fig. 1 Stereolithography (SLA) rapid prototyping system. Courtesy of Milwaukee School of Engineering Fig. 2 Selective laser sintering (SLS) rapid prototyping...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003135
EISBN: 978-1-62708-199-3
..., brass and nickel silver P/M parts, copper-nickel P/M parts, copper-lead P/M parts, copper-base P/M friction materials, copper-base P/M electrical contact materials, copper-base P/M brush materials, infiltrated parts, and oxide-dispersion-strengthened copper P/M materials. copper alloy powders...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003789
EISBN: 978-1-62708-177-1
... not filled with oxide. Arrows E surround a eutectoid region. White areas are ferrite. 2% nital. 365× Fig. 52 Microstructures of (a) conventionally (partially) infiltrated steel showing the degree of pore filling and (b) fully infiltrated steel showing completeness of pore filling. Unetched. 75...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003350
EISBN: 978-1-62708-195-5
... of the reinforcement and a controlled porosity for infiltration. In addition, the preform provides adequate “green strength” to resist the pressures that are sometimes applied during infiltration. Another important near-net shape process is a proprietary in situ casting technique used by DMC 2 Electronic Components...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003063
EISBN: 978-1-62708-200-6
..., namely, discontinuously reinforced composites and continuous-fiber-reinforced composites. Processing methods include cold pressing, sintering, hot pressing, reaction bonding, melt infiltration, directed metal oxidation, sol-gel and polymer pyrolysis, self-propagating high-temperature synthesis...
Series: ASM Handbook
Volume: 1
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v01.a0001044
EISBN: 978-1-62708-161-0
... Lubricant content of mixed powders … … 4495 Compactability of metal powders B 331 45 … Apparent density of Arnold meter … 48 … Test of copper base powder for infiltrating … 49 … Methods applicable to compacted and sintered materials Designation ASTM MPIF ISO...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... Severe Underdeposit Corrosion ,” Paper 8899, Corrosion/2017, NACE International , Houston, TX , 2017 45. Hendrix D.E. , Hydrogen Attack on Waterwall Tubes in a High Pressure Boiler , Mater. Perform. , Vol 34 ( No. 8 ), 1995 46. Port R.D. and Herro H.M. , Chap. 14...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003486
EISBN: 978-1-62708-195-5
... in aluminum can-making equipment and associated tooling. Products made from CMCs include ( Ref 19 ): Punches Bodymaker toolpack (redraw dies, ironing dies, pressure rings) Domer tooling Cupper tooling Stripper tooling Necker tooling Trimmer blades Materials used...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003157
EISBN: 978-1-62708-199-3
... as from external sources. Infiltration is used exclusively for making refractory metal and carbide-base composite contact materials. Metal powder or carbide powder is first blended to the desired composition with or without a small amount of binder to impart green strength, then is pressed...
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
... drop tower impact testing (strain rate &lt; 100 s −1 ). (b) Quasi-static (strain rate &lt; 1 s −1 ) versus split-Hopkinson pressure bar (SHPB) testing (strain rate approximately 1000 s −1 ) Fig. 17 Compressive stress-strain curves of otherwise identical AA 6061 foams of 0.6 g/cm 3 density...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001318
EISBN: 978-1-62708-170-2
... impregnation, vapor phase carbon infiltration, or combinations of the two to achieve pore filling ( Ref 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 ). High-temperature pyrolysis is used to convert liquid impregnants to carbon while vapor phase infiltration is conducted in reduced-pressure reactors where flowing...
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
.... The article discusses matrix precursor impregnants, liquid impregnation, and chemical vapor infiltration (CVI) for densification of CCCs. It presents various coating approaches for protecting CCCs, including pack cementation, chemical vapor deposition, and slurry coating. Practical limitations of coatings...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005926
EISBN: 978-1-62708-166-5
...-ammonia-based atmospheres, industrial gas nitrogen-base atmospheres, argon atmospheres, and hydrogen atmospheres. Atmospheres for backfilling, partial pressure operation, and quenching in vacuum are also discussed. Furnace atmospheres constitute four major groups of safety hazards in heat treating: fire...