Results 11 to 20 of about 320,417 (279)

Sintering of nanocrystalline materials: Sintering parameters

open access: yesHeliyon, 2023
Nanostructured materials (NsM) are typical materials with structural length scales of one, two, or three dimensions in the range of 1-100 nm. In the development of NsM, the microstructure of a material, which is an integral factor in determining the intrinsic performance of a material, is susceptible to changes that may hinder the desired nano-state ...
Bukola Joseph Babalola   +2 more
openaire   +3 more sources

Parametric Analysis of the Selective Laser Sintering Process [PDF]

open access: yes, 1990
Qualitative and quantitative analyses are required to develop Selective Laser Sintering into a viable Manufacturing process. A simplified mathematical model for sintering incorporating the heat tJ;ansfer equation.
Barlow, Joel W.   +2 more
core   +1 more source

Effect of 1 wt% LiF additive on the densification of nanocrystalline Y2O3 ceramics by spark plasma sintering [PDF]

open access: yes, 2011
Densification of nanocrystalline cubic yttria (nc-Y2O3) powder, with 18 nm crystal size and 1 wt% LiF as a sintering additive was investigated. Specimens were fabricated by spark plasma sintering at 100 MPa, within the temperature range of 700–1500 °C ...
Chaim, Rachman   +3 more
core   +2 more sources

Analysis of printing parameters for metal additive manufactured parts through Direct Ink Writing process [PDF]

open access: yes, 2020
Direct Ink Writing is an Additive Manufacturing process in which a metal ink is continuously extruded to built-up a green metal part. Therefore, a debinding and sintering process is required to obtain the final metal part. This thermal process produces a
Bonada Bo, Jordi   +6 more
core   +2 more sources

Zirconia as a support for catalysts: influence of additives on the thermal stability of the porous texture of monoclinic zirconia [PDF]

open access: yes, 1991
A single-phase monoclinic zirconia (the thermodynamically stable modification up to a temperature of 1170°C), having a specific surface area of 67 m2g¿1 and a well-developed mesoporous texture, has been prepared by gel-precipitation followed by ...
Burggraaf, A.J.   +8 more
core   +13 more sources

Densification and preservation of ceramic nanocrystalline character by spark plasma sintering [PDF]

open access: yes, 2012
Spark plasma sintering is a hot pressing technique where rapid heating by dc electric pulses is used simultaneously with applied pressure. Thus, spark plasma sintering is highly suitable for rapid densification of ceramic nanoparticles and preservation ...
C Estournés   +7 more
core   +2 more sources

Synthesis, Sintering, and Electrical Properties of BaCe0.9−xZrxY0.1O3−δ [PDF]

open access: yes, 2008
BaCe0.9−xZrxY0.1O3−δ powders were synthesized by a solid-state reaction. Different contents of cerium and zirconium were studied. Pellets were sintered using either conventional sintering in air at 1700◦C or the Spark Plasma Sintering (SPS) technique ...
Bonanos, Nikolaos   +3 more
core   +4 more sources

Investigation of the Oven Process in Indirect Metal Laser Sintering [PDF]

open access: yes, 2004
This paper deals with the optimization of Indirect Metal Laser Sintering. Different experimental analyses have proven that the oven process is highly responsible for the part distortion.
Seefried, M., Zaeh, M. F.
core   +1 more source

Spark plasma sintering of alumina: Study of parameters, formal sintering analysis and hypotheses on the mechanism(s) involved in densification and grain growth [PDF]

open access: yes, 2011
The spark plasma sintering (SPS) of an undoped commercial α-Al2O3 powder (0.14 μm) was investigated. The SPS parameters such as the dwell temperature, applied external pressure, temperature of pressure application, dwell time and pulse pattern were ...
Estournès, Claude   +5 more
core   +2 more sources

Effect of Polymer Coatings as Intermediate Binders on Sintering of Ceramic Parts [PDF]

open access: yes, 1991
It has been proposed that a thin polymer layer applied to the surfaces of finely divided ceramic powders would serve as a suitable intermediate binder for Selective Layer Sintering of ceramic pans.
Barlow, J.W., Vail, N.K.
core   +1 more source

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