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pressure-assisted densification

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Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290169
EISBN: 978-1-62708-319-5
.... Hot isostatic pressing supplements densification by using a high-pressure gas. References 1. Kim Y.D. , Sonezaki K. , Maeda H. , and Kato A. , Sintering Behaviour of Monodispersed ZnS Powders , J. Mater. Sci. , Vol 32 , 1997 , p 5101 – 5106...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.9781627083195
EISBN: 978-1-62708-319-5
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290201
EISBN: 978-1-62708-319-5
... Content and Mechanical Properties of 17-4 PH Stainless Steel Fabricated by PIM Process and Sintering , Met. Mater. Int. , Vol 12 , 2006 , p 101 – 106 10.1007/BF03027464 12. Kwon Y.S. , Wu Y. , Suri P. , and German R.M. , Simulation of the Sintering Densification and Shrinkage...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230267
EISBN: 978-1-62708-298-3
... sintering on subsequent densification [ Porembka et al. 1967 ]. The very high pressures developed during the detonation of explosives have been used to compact beryllium powder to high densities [ Hodge et al. 1966 , Porembka 1963 ]. The procedure consists of loading the powder into a mild-steel...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290111
EISBN: 978-1-62708-319-5
... holds the outside perimeter while the agglomerated powder compresses along the vertical axis. Fig. 6.4 Uniaxial die compaction involves the application of pressure on the loose granules. The pressure causes densification by a sequence of repacking and sliding, followed by deformation. The die...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
... effect of temperature, pressure, and other process variables on the microstructures and properties developed. beryllium chemical vapor deposition electroplating ion plating microstructure physical vapor deposition plasma arc spraying sputtering thermal evaporation THIS CHAPTER deals...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870573
EISBN: 978-1-62708-314-0
... minimize voids in the consolidated composite. When the constituents are not effectively packed, densification becomes more difficult, requiring higher pressures and longer times. Optimum packing occurs when the particle size distribution contains about 30 percent by volume of small particles and 70 percent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.tb.scm.t52870119
EISBN: 978-1-62708-314-0
..., producing greater laminate densification. This process is usually employed in the production of high-performance laminates using epoxy resin systems in aircraft and aerospace applications. However, either a pressure bag or an autoclave usually increases the costs substantially and negates many of the cost...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2012
DOI: 10.31399/asm.tb.lmub.t53550569
EISBN: 978-1-62708-307-2
... applications. Removing coal ash particles from the exhaust gas of a coal-fired pressurized fluidized bed combustor protects the downstream equipment, such as gas turbine engines, from damage, enabling the generation of energy with reduced emissions and with higher efficiency. Sol-gel and slurry infiltration...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2002
DOI: 10.31399/asm.tb.stg2.t61280117
EISBN: 978-1-62708-267-9
... process resembles a vacuum sintering process, assisted by low pressure exerted on the surface of a shaped glass container. The fluid die process incorporates a cavity surrounded by a dense, incompressible mass of material. The higher mass of these containers, compared to the mass of sheet containers...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290139
EISBN: 978-1-62708-319-5
... Abstract Binder removal approaches involve various combinations of heat, solvents, vacuum, and pressure. In each variant, the goal is binder removal without component damage. This chapter addresses the factors that control success, showing how process decisions depend on the powder and binder...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060117
EISBN: 978-1-62708-261-7
... complex shapes, close tolerances, controlled density, and controlled (and often unusual) properties can be produced by PM methods. The most common method of PM part production is the two-step process of powder compaction (by pressing) and densification (by sintering), referred to as PM pressing and...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290009
EISBN: 978-1-62708-319-5
... Abstract This chapter introduces the key powder fabrication attributes to assist in the identification of the right powders for an application. First, it describes the characteristics of engineering powders such as particle size distribution, powder shape and packing density, surface area...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290001
EISBN: 978-1-62708-319-5
.... Because of the densification, the component shrinks to approach full density. On cooling, the sintered component is then ready for finishing operations, such as heat treating, painting, electroplating, machining, or polishing. The idea of shaping an object from powder, using a transient binder phase...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000059
EISBN: 978-1-62708-312-6
.... and Jones W.R. , How Argon Can Assist in Providing Clean Burn-Off of Lubricants and Binders , Advances in Powder Metallurgy and Particulate Materials , Ferguson H. , Whychell D. Sr. , Eds., MPIF , Princeton, NJ , 2000 , Part 5, p 5 - 33 / 5 - 42 71. Klar E...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2000
DOI: 10.31399/asm.tb.ttg2.t61120047
EISBN: 978-1-62708-269-3
...) Of these, it is claimed that the latter three are capable of producing fully dense compacts. Of those three procedures, HIP within a heated pressure vessel or autoclave is the most common procedure for critical parts. By simultaneously applying temperature and hydrostatic pressure, full density in...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480161
EISBN: 978-1-62708-318-8
... densification by hot isostatic pressing (HIP) ( Ref 8.6 ). The good mechanical properties of titanium alloy castings are a result of the high cleanliness of titanium castings, the ability to close and completely heal pores by the HIP operation (essentially, diffusion bond surfaces together to give a...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.t52000185
EISBN: 978-1-62708-312-6
... and other applications of similar porosities are usually made from water-atomized stainless steel powders by pressing and sintering, similar to the manufacture of structural parts. However, loose powder sintering in trays or molds, cold isostatic compaction, and binder-assisted extrusion are also used...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290035
EISBN: 978-1-62708-319-5
..., followed by sintering densification. Fig. 3.1 Outline of how constituents of backbone, filler, and additive phases are combined to produce a binder and, in turn, the powder-binder combination provides a feedstock used for shaping. The binder jetting option in additive manufacturing selectively...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2020
DOI: 10.31399/asm.tb.bpapp.t59290251
EISBN: 978-1-62708-319-5
... Holder Method , Powder Metall. , Vol 57 , 2014 , p 168 – 170 10.1179/0032589914Z.000000000180 • Kim D. , Ahn S. , Lee K.H. , Nambiar R. , Chung S.W. , Park S.J. , and German R.M. , Gas-Assisted Powder Injection Molding: A Study about Residual Wall Thickness...