Results 41 to 50 of about 71,161 (194)

Effect of BaO Addition on Densification and Mechanical Properties of Al2O3-MgO-CaO Refractories

open access: yesMetals, 2016
Considering the requirement for a reduction of refractory consumption, the present work investigated the fabrication of Al2O3-MgO-CaO-based refractory with BaO addition by means of solid-state reaction sintering.
Lei Liu   +4 more
doaj   +1 more source

Effect of laser incident energy on the densification and structure–property relationships of additively manufactured CrCoNi medium-entropy alloy

open access: yesVirtual and Physical Prototyping, 2021
Directed energy deposition (DED) shows outstanding advantages in manufacturing complex and functionally graded parts. This study systematically investigated the effect of laser incident energy on the densification, microstructure, texture evolution and ...
Pengsheng Xue   +9 more
doaj   +1 more source

Oscillatory pressure-assisted sinter forging for preparation of high-performance SiC whisker reinforced Al2O3 composites

open access: yesJournal of Advanced Ceramics, 2023
In this work, a novel process, oscillatory pressure-assisted sinter forging (OPSF), for the preparation of high-performance ceramic composites was reported.
Hongtian He   +9 more
doaj   +1 more source

Densification of Wood – Chemical and Structural Changes Due to Ultrasonic and Mechanical Treatment

open access: yes, 2021
This paper presents the state of the art of wood surface densification method by pressing with ultrasound. The properties of ultrasound and its effects on the structure and properties of wood, as well as ultrasound-induced chemical changes in wood ...
Peter Koleda   +4 more
core   +1 more source

De/re-densification: a relational geography of urban density [PDF]

open access: yes, 2020
In this article, I set out an approach to cities and urbanization through a relational geography of urban density. While density has long been central to the urban question, I argue for a focus on the relationship between densification, de-densification,
McFarlane, C.
core   +1 more source

Urban Densification and Outdoor Thermal Comfort: Scenario-Based Analysis in Zurich’s Altstetten–Albisrieden District

open access: yesLand
The growing urban population has made densification a key focus of urban development. It is crucial to create an urban planning strategy that understands the environmental, social, and economic effects of densification at both the district and city ...
Yingying Jiang, Sacha Menz
doaj   +1 more source

Microstructural and Magnetic Evolution of α″-Fe16N2 Bulk Magnets Consolidated by Spark Plasma Sintering

open access: yesCrystals
The development of rare-earth-free permanent magnets represents a strategic direction in advanced magnetic materials research. Among the most promising candidates, the metastable α″-Fe16N2 phase stands out due to its exceptionally high saturation ...
Marian Grigoras   +4 more
doaj   +1 more source

Effect of speed, die sizes and moisture contents on durability of cassava pellet in pelletizer

open access: yesResearch in Agricultural Engineering, 2015
The effect of pre-processing conditions such as speed, die sizes and moisture content on durability of cassava flour was investigated. Densification of cassava flour was done by pelletizing the flour through die and it is necessary to determine optimum ...
O.B. Oduntan, O.A. Koya
doaj   +1 more source

Pressure‐Assisted Ceramic Processing of Metal Halide Perovskites

open access: yesAdvanced Photonics Research
Increasing demand for metal halide perovskites in applications beyond photovoltaics (e.g., hard radiation detection) necessitates hundreds of microns to millimeters thick active layers for optimal performance.
Michael C. Brennan   +5 more
doaj   +1 more source

Briquettes Production from Olive Mill Waste under Optimal Temperature and Pressure Conditions: Physico-Chemical and Mechanical Characterizations

open access: yesEnergies, 2020
This paper aims at investigating the production of high quality briquettes from olive mill solid waste (OMSW) mixed with corn starch as a binder for energy production.
Saaida Khlifi   +5 more
doaj   +1 more source

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