Results 21 to 30 of about 121,711 (277)

Densification and polymorphic transition of multiphase Y2O3 nanoparticles during spark plasma sintering [PDF]

open access: yes, 2011
Multiphase (MP) monoclinic and cubic Y2O3 nanoparticles, 40 nm in diameter, were densified by spark plasma sintering for 5–15 min and100 MPa at 1000 °C, 1100 °C, and 1500 °C. Densification started with pressure increase at room temperature. Densification
Chaim, Rachman   +3 more
core   +4 more sources

Intensive particle rearrangement in the early stage of spark plasma sintering process

open access: yesJournal of Asian Ceramic Societies, 2015
The densification behaviors of 3 mol% yttria-stabilized tetragonal zirconia polycrystal (3Y-TZP) ceramics during spark plasma sintering (SPS) were analyzed both using the master sintering curve (MSC) approach and by evaluating the temperature dependent ...
Ling Wang   +4 more
doaj   +1 more source

Influence of Material and Process Parameters on Reduction-Swelling Characteristics of Sintered Iron Pellets

open access: yesMetals, 2023
This paper investigates the use of shop-floor ferrous scrap that contains iron ore as a raw material for the purpose of making steel products through an in situ carbothermic reduction.
Kedarnath Rane   +2 more
doaj   +1 more source

Urban densification and social capital: neighbourhood restructuring in Jinan, China

open access: yesBuildings & Cities, 2021
Urban densification and massive restructuring projects in China have dictated profound socioeconomic changes. This paper explores changes in social capital and residents’ daily practices (cooking, eating, cleaning, shopping and socialising) in Jinan ...
Xin Li, Minna Sunikka-Blank
doaj   +1 more source

Le capacity building ou comment construire sa place à travers la construction de compétences collectives

open access: yesTerritoire en Mouvement, 2021
For several decades, individual housing has remained the privileged way of life in France and, more broadly, in Europe (Damon, 2017). Tributaries of private action, residential subdisions continue to develop to all-out, despite the political orientations
Marion Serre, Rémy Vigneron
doaj   +1 more source

Micro-Brillouin spectroscopy mapping of the residual density field induced by Vickers indentation in a soda-lime silicate glass [PDF]

open access: yes, 2012
High-resolution Brillouin scattering is used to achieve 3-dimensional maps of the longitudinal acoustic mode frequency shift in soda-lime silicate glasses subject to Vickers indentations.
Clément, S.   +4 more
core   +3 more sources

Analysis on urban densification dynamics and future modes in southeastern Wisconsin, USA.

open access: yesPLoS ONE, 2019
Urban change (urbanization) has dominated land change science for several decades. However, few studies have focused on what many scholars call the urban densification process (i.e., urban intensity expansion) despite its importance to both planning and ...
Lingzhi Wang   +5 more
doaj   +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

Research progress of molybdenum-based composites prepared by powder metallurgy technology

open access: yesFenmo yejin jishu, 2021
The research progress of the molybdenum-based composites prepared by powder metallurgy (PM) technology was summarized in this paper, the common reinforcements of the molybdenum-based composites and the effects of the reinforcements on the properties of ...
WU Ming-ming   +7 more
doaj   +1 more source

Optically transparent ceramics by spark plasma sintering of oxide nanoparticles [PDF]

open access: yes, 2010
Optical transparency in polycrystalline ceramic oxides can be achieved if the material is fully densified. Spark plasma sintering (SPS) of oxide nanoparticles leads to immediate densification with final-stage sintering.
Chaim, Rachman   +2 more
core   +2 more sources

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