Results 41 to 50 of about 64,179 (268)

Laser Powder Bed Fusion of Alumina: Effects of Scanning Strategies on External and Internal Defects

Advanced Engineering Materials, EarlyView.
This study investigates how scanning strategies affect pure alumina in laser powder bed fusion. Linear 45° scanning yields uniform surfaces but high porosity, while the island‐concentric strategy provides higher density with through‐holes favorable for infiltration. Findings highlight pathways toward optimizing defect‐free alumina parts.
Mohamed Abdelmoula, Gökhan Küçüktürk, Duran Kaya, David Grossin, Christophe Tenailleau, Benjamin Duployer, Enrique Juste, Fabrice Petit   +7 more
wiley   +1 more source

Faience: the ceramic technology of ancient Egypt [PDF]

, 2012
Faiences are ancient Egyptian ceramic materials, considered as "high-tech" products. The paper discussed the method by which the faiences were produced and the application of SEM and Raman spectroscopy to their ...
Sparavigna, Amelia Carolina
core  

Ceramic microtubes from preceramic polymers

, 2003
A novel process for the production ceramic microtubes, involving the micro-extrusion of preceramic polymers, is here reported. Microtubes with a wide range of inner and outer diameters, and several centimeters long were produced from two silicone resins.
G. MACCAGNAN, COLOMBO, PAOLO, K. PERINI, BERNARDO, ENRICO, T. CAPELLETTI   +4 more
core   +1 more source

An Archaeometric Study of the Iron Age Ceramics from Quinta do Almaraz Archaeologic Site (8th to 5th Centuries BC)—Colour and Mineralogical Characterization

Colorants
The ceramic pastes of ca. 31 samples recovered from the Almaraz archaeological site, located in the south bench of Tagus River, were studied in detail using XRF, micro-Raman and GSDR spectroscopies, as well as the XRD technique.
Luis Filipe Vieira Ferreira, Ana Olaio, Manuel Francisco Costa Pereira, Isabel Luisa Ferreira Machado   +3 more
doaj   +1 more source

Green Ceramic Machining: Influence of the Cutting Speed and the Binder Percentage on the Y-TZP Behavior

Journal of Manufacturing and Materials Processing, 2020
The demand for inert bioceramics is always increasing in the dental field. Yttrium oxide tetragonal zirconia polycrystals (Y-TZP) are oxide ceramics which are currently used because of their interesting mechanical properties due to a toughening ...
Anthonin Demarbaix, François Ducobu, Nicolas Preux, Fabrice Petit, Edouard Rivière-Lorphèvre   +4 more
doaj   +1 more source

Research and application progress of 3D printing ceramic casting mould

Cailiao gongcheng, 2022
Ceramic casting mould is a kind of complex part which is used in the field of investment precision casting to mold the inner and outer structure of casting. With the increase of the complexity of casting, more delicate and complex casting mould is needed
LIU Yansong, LI Wenbo, LIU Yongsheng, ZENG Qingfeng   +3 more
doaj   +1 more source

Carboxylic‐Acid Functionalized Multiwalled Carbon Nanotube‐Alkane‐Based Resistive Temperature Sensor for Cold Chain Applications

Advanced Engineering Materials, EarlyView.
This study presents a reversible temperature sensor with high switching ratio, ∼103. The device is fabricated using PET‐ITO and carbon nanotube dispersions in alkane. Considering its application in cold chain logistics, a proof‐of‐concept with LED is showcased. Thus, a temperature drop below the threshold temperature (crystallization temperature of the
Sunil Kumar Behera, Philippe Marrec, A. Jorge Parola, Madalena Dionísio, Hugo Águas, Andreia F. M. Santos, Hamed Pourkheirollah, Donald Lupo, César A. T. Laia   +8 more
wiley   +1 more source

Theoretical Assessment of Nd:YAG Ceramic Laser Performance by Microstructural and Optical Modeling [PDF]

, 2010
An approach combining microstructural and optical modeling based on atomistic simulation results is proposed, in order to assess the performance of Nd:YAG laser ceramics resulting rom luminescence and transparency changes as a function of grain size and ...
Bowen, Paul, Aschauer, Ulrich Johannes, Aschauer, Ulrich   +2 more
core   +1 more source

Low‐Cost, Large‐Scale Nanoporous Metals by Mechanical Alloying, Oxide Reduction, and Dealloying of Powders

Advanced Engineering Materials, EarlyView.
Powder metal processing provides scalable advantages in nanoporous (np) metal development. Mechanical alloying is used to produce unique precursors for hybrid nanopore formation by oxide reduction and dealloying. As demonstrated in np Ag, this approach improves process efficiency while promoting smaller ligaments and larger pores, both of which are ...
Mark A. Atwater, Oliver A. Fowler
wiley   +1 more source

Research on Optimal Fabrication of High-Quality Ceramic by Process Analysis Technology

Engineering Proceedings
We developed a composite recognition method combining hybrid sensor recognition and artificial intelligence image recognition techniques and optimized quality monitoring of the ceramic production process.
Jianhua Cheng, Minhui Tong
doaj   +1 more source