Skip Nav Destination
Close Modal
By
Suk Hwan Chung, Young-Sam Kwon, Seong Jin Park, Randall M. German
By
Harish Irrinki, Subrata D. Nath, Arulselvan Arumugham Akilan, Sundar V. Atre
By
John A. Shields, Jr., Steven G. Caldwell
Search Results for
densification
Update search
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
Filter
- Title
- Authors
- Author Affiliations
- Full Text
- Abstract
- Keywords
- DOI
- ISBN
- EISBN
- Issue
- ISSN
- EISSN
- Volume
- References
NARROW
Format
Topics
Book Series
Date
Availability
1-20 of 246
Search Results for densification
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
1
Sort by
Book Chapter
Densification and Sintering of Ceramics
Available to PurchaseSeries: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003054
EISBN: 978-1-62708-200-6
... such as reaction sintering and self-propagating, high-temperature synthesis. It also describes several pressure densification methods, including hot isostatic pressing, gas pressure sintering, molten particle deposition, and sol-gel processing. The article concludes with a section on grain growth that discusses...
Abstract
Sintering provides the interparticle bonding that generates the attractive forces needed to hold together the otherwise loose ceramic powder mass. It also improves hardness, strength, transparency, toughness, electrical conductivity, thermal expansion, magnetic saturation, corrosion resistance, and other properties. This article discusses the fundamentals of sintering and its effects on pore structures and particle density. It addresses some of the more common sintering methods, including solid-state, liquid-phase, and gas pressure sintering, and presents alternative processes such as reaction sintering and self-propagating, high-temperature synthesis. It also describes several pressure densification methods, including hot isostatic pressing, gas pressure sintering, molten particle deposition, and sol-gel processing. The article concludes with a section on grain growth that discusses the underlying mechanisms and kinetics and the relationship between grain growth and densification.
Image
Densification curves for 98% W-1% Ni-1% Fe powder compact with different tu...
Available to PurchasePublished: 30 September 2015
Fig. 15 Densification curves for 98% W-1% Ni-1% Fe powder compact with different tungsten particle sizes (1 μm and 5 μm) during heating and isothermal sintering at 1460 °C (2660 °F). Source: Ref 110
More
Image
Schematic diagram comparing the effects of solubility on densification or s...
Available to PurchasePublished: 30 September 2015
Fig. 19 Schematic diagram comparing the effects of solubility on densification or swelling during liquid-phase sintering. Source: Ref 105
More
Image
(a) Idealized two-sphere model for densification by contact flattening. (b)...
Available to PurchasePublished: 30 September 2015
Fig. 24 (a) Idealized two-sphere model for densification by contact flattening. (b) Schematic diagram illustrating densification accompanied by Ostwald ripening. Grain shape accommodation can also occur when the liquid volume fraction is low.
More
Image
The conceptual outline of supersolidus liquid-phase sintering densification...
Available to PurchasePublished: 30 September 2015
Fig. 30 The conceptual outline of supersolidus liquid-phase sintering densification for three particles: (a) initial particle packing, (b) formation of initial liquid with insufficient wetting of grain boundaries for densification, (c) viscous flow densification of semisolid particles, and (d
More
Image
Hot isostatic pressing densification maps for a nickel-base superalloy powd...
Available to PurchasePublished: 30 September 2015
Fig. 7 Hot isostatic pressing densification maps for a nickel-base superalloy powder having a particle diameter of 50 µm (2 mils). (a) Density as a function of pressure (pressure expressed as the log of the ratio of applied hydrostatic pressure over flow stress) when processed at constant
More
Image
Densification of copper compacts as a function of temperature and time. Sou...
Available to PurchasePublished: 30 September 2015
Fig. 3 Densification of copper compacts as a function of temperature and time. Source: Ref 7
More
Image
Sintering densification parameter versus sintering time for tungsten compac...
Available to PurchasePublished: 30 September 2015
Fig. 4 Sintering densification parameter versus sintering time for tungsten compacts sintered at 2100 °C (3810 °F). D s is sintered density; D g is green density; D t is theoretical density. 3N tungsten powder with particle sizes (FSSS) of 2.15 μm and 4.05 μm. Source: Ref 7
More
Image
(a) Combination of direct powder process with hot rolling densification. (b...
Available to PurchasePublished: 30 September 2015
Fig. 7 (a) Combination of direct powder process with hot rolling densification. (b) Microstructure of green titanium strip. (c) Microstructure of consolidated strip. Source: Ref 21
More
Image
Various proposed preform profiles for densification of a powder metallurgy ...
Available to PurchasePublished: 01 November 2010
Fig. 30 Various proposed preform profiles for densification of a powder metallurgy gear
More
Image
Densification due to cogging of powder metallurgy gear teeth as predicted b...
Available to PurchasePublished: 01 November 2010
Fig. 31 Densification due to cogging of powder metallurgy gear teeth as predicted by finite-element modeling for the profiles shown in Fig. 30
More
Image
Schematic diagram showing grain growth, densification, and coarsening kinet...
Available to PurchasePublished: 01 November 1995
Fig. 11 Schematic diagram showing grain growth, densification, and coarsening kinetics vs. reciprocal temperature. Temperature ranges suitable for rate-controlled sintering and fast firing are indicated.
More
Image
Role of densification during liquid-phase sintering as a function of rearra...
Available to PurchasePublished: 01 November 1995
Fig. 12 Role of densification during liquid-phase sintering as a function of rearrangement, solution precipitation, and final pore removal. (a) Schematic of typical microstructure and pore size of three stages of liquid-phase sintering. (b) Plot of densification versus sintering time for Al 2
More
Image
Published: 01 November 1995
Fig. 9 Typical carbon-carbon densification process. Source: Ref 59
More
Image
Contour maps showing the effect of power and scan speed on densification of...
Available to Purchase
in Additive Manufacturing of Tungsten, Molybdenum, and Cemented Carbides
> Additive Manufacturing Processes
Published: 15 June 2020
Fig. 2 Contour maps showing the effect of power and scan speed on densification of (a) tungsten and (b) molybdenum. Source: Ref 11
More
Image
Progressive densification and grain growth at several stages of sintering: ...
Available to Purchase
in Effects of Composition, Processing, and Structure on Properties of Ceramics and Glasses
> Materials Selection and Design
Published: 01 January 1997
Fig. 7 Progressive densification and grain growth at several stages of sintering: (a) initial stage, (b) intermediate stage, (c) final stage, and (d) fracture surface. The fracture surface micrograph shows the desirable placement of spherical pores on grain boundaries in the final stage
More
Image
Published: 01 January 2001
Fig. 4 Typical carbon-carbon densification process. Source: Ref 16
More
Book Chapter
Modeling and Simulation of Press and Sinter Powder Metallurgy
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006033
EISBN: 978-1-62708-175-7
... Abstract This article discusses continuum modeling, which is the most relevant approach in modeling grain growth, densification, and deformation during sintering. Continuum plasticity models are frequently used to describe the mechanical response of metal powders during compaction. The article...
Abstract
This article discusses continuum modeling, which is the most relevant approach in modeling grain growth, densification, and deformation during sintering. Continuum plasticity models are frequently used to describe the mechanical response of metal powders during compaction. The article illustrates the typical procedure for computer simulation for press and sinter process. It describes the procedure to obtain the material properties based on the generalized Shima-Oyane model. The article presents a wide variety of tests, accounting for data on the grain growth, densification, and distortion where these data help in the development of a constitutive model for sintering simulation. Finally, the article provides information on the simulation approaches used to optimize die compaction and sintering.
Book Chapter
Laser Powder Bed Fusion
Available to PurchaseSeries: ASM Handbook
Volume: 24
Publisher: ASM International
Published: 15 June 2020
DOI: 10.31399/asm.hb.v24.a0006621
EISBN: 978-1-62708-290-7
... Abstract This article focuses on a study that was performed to understand the effects of powder attributes; process parameters; and hot isostatic pressing (HIP) treatment on the densification, mechanical and corrosion properties, and microstructures of 17-4 PH stainless steel gas- and water...
Abstract
This article focuses on a study that was performed to understand the effects of powder attributes; process parameters; and hot isostatic pressing (HIP) treatment on the densification, mechanical and corrosion properties, and microstructures of 17-4 PH stainless steel gas- and water-atomized laser-powder bed fusion (LPBF) parts at various energy densities. The results from the study showed the strong dependence of densification, mechanical properties, and microstructures on temperature, pressure, and time during the HIP cycle. The density, ultimate tensile strength, hardness and yield strength of gas and water-atomized LPBF parts increased due to HIP treatment and were higher than as-printed properties. The results also confirmed superior corrosion performance of the HIP treated LPBF parts.
Book Chapter
Fully Dense Processing of Refractory Metal Powders
Available to PurchaseBook: Powder Metallurgy
Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006125
EISBN: 978-1-62708-175-7
... Abstract The residual porosity in sintered refractory metal ingots is usually eliminated by different densification processes, such as thermomechanical processes. This article focuses on thermomechanical processing of tungsten, molybdenum, and tantalum. It provides an overview of liquid-phase...
Abstract
The residual porosity in sintered refractory metal ingots is usually eliminated by different densification processes, such as thermomechanical processes. This article focuses on thermomechanical processing of tungsten, molybdenum, and tantalum. It provides an overview of liquid-phase sintering of tungsten heavy alloys and describes the infiltration of tungsten and molybdenum for attaining full density. The article concludes by providing information on hot isostatic pressing of refractory metal alloys to full density.
1