Results 61 to 70 of about 951 (206)

Spark plasma sintering of hard wear‐resistant graphene nanoplatelet–reinforced TiB2 + SiC composites from TiC–B4C–SiC

Journal of the American Ceramic Society, Volume 107, Issue 12, Page 8521-8529, December 2024.
Abstract Graphene nanoplatelet (GNP)–reinforced TiB2 + SiC composites were fabricated by reactive spark plasma sintering (SPS) from a TiC–B4C–SiC powder mixture with equal‐volume percentages, optimizing their SPS temperature and evaluating their unlubricated sliding wear against diamond. First, it is shown that during the heating ramp of the SPS cycle,
Jesús López‐Arenal, Victor Zamora, Fernando Guiberteau, Angel L. Ortiz   +3 more
wiley   +1 more source

PRELIMINARY DATA ON FUMONISINS PRESENCE IN PIG LIVER

Italian Journal of Food Safety, 2009
Mycotoxins are heterogeneous chemical compounds characterized by a low molecular weight and synthesized by the secondary metabolism of different molds.
B. Lugoboni, T Gazzotti, E. Zironi, A. Barbarossa, A. Piva, G. Pagliuca   +5 more
doaj   +1 more source

Texture‐based speciation of otitis media‐related bacterial biofilms from optical coherence tomography images using supervised classification

Journal of Biophotonics, Volume 17, Issue 10, October 2024.
Otitis media (OM) is an inflammatory middle‐ear infection in children that can lead to antibiotic‐resistant bacterial biofilms in recurrent or chronic cases. Optical coherence tomography (OCT) is used clinically to visualize these biofilms. This study used OCT to compare texture features from primary bacterial biofilms, employing machine‐learning ...
Farzana R. Zaki, Guillermo L. Monroy, Jindou Shi, Kavya Sudhir, Stephen A. Boppart   +4 more
wiley   +1 more source

Microstructural characterization of as-cast hf-b alloys

Materials Research, 2012
An accurate knowledge of several metal-boron phase diagrams is important to evaluation of higher order systems such as metal-silicon-boron ternaries. The refinement and reassessment of phase diagram data is a continuous work, thus the reevaluation of ...
João Carlos Jânio Gigolotti, Paulo Atsushi Suzuki, Carlos Angelo Nunes, Gilberto Carvalho Coelho   +3 more
doaj  

Superior strength and ductility synergy at elevated temperatures of LPBF-fabricated IN718 + HfB2 through cooperative microbands and microtwins

Materials & Design
Laser-powder bed fusion (LPBF) fabricated IN718 superalloy is often constrained by its inferior high-temperature performance beyond 650 °C. While ceramic reinforcement is a widely adopted strategy to address this limitation, conventional ceramics (e.g ...
Yanbo Zhang, Yiqing Zhang, Kaiju Lu, Kai Wu, Luqing Cui, Bo Zhang, Jinfeng Dang, Wei Liu, Xiubing Liang   +8 more
doaj   +1 more source

Exceptional Hardness and Thermal Properties of SiC/(Hf,Ta)C(N)/(B)C Ceramic Composites Derived from Single‐Source Precursor

Advanced Engineering Materials, Volume 26, Issue 17, September 2024.
Si(B)C/(Hf0.75Ta0.25)C(N)/C ceramic composites are prepared via spark plasma sintering of amorphous SiHfTaBCN‐based powders. The inclusion of boron led to enhanced densification and great homogeneity of the microstructure, besides decreasing the thermal conductivity and increasing the Vickers hardness (31 GPa) as well as the Young's modulus (405 GPa ...
Jan Bernauer, Nils‐Christian Petry, Nathalie Thor, Samuel Aeneas Kredel, Dharma Teja Teppala, Mathias Galetz, Maren Lepple, Astrid Pundt, Emanuel Ionescu, Ralf Riedel   +9 more
wiley   +1 more source

Recent advances and key challenges of the emerging MBenes from synthesis to applications

MetalMat, Volume 1, Issue 1, July 2024.
MBene, as a new family of two‐dimensional materials, is expected to play a key role in energy storage, catalysis, and other fields. This article comprehensively summarizes MBene, including its structure, synthesis, properties, and applications. In addition, the shortcomings of MBene in research were pointed out and prospects for its future development ...
Zhuobin Guo, Liangzhu Zhang, Tasmia Azam, Zhong‐Shuai Wu   +3 more
wiley   +1 more source

Consolidation via Spark Plasma Sintering of HfB2/SiC and HfB2/HfC/SiC Composite Powders obtained by Self-propagating High-temperature Synthesis

, 2009
HfB2–SiC and HfB2–HfC–SiC dense composites have been prepared by self-propagating high-temperature synthesis (SHS) followed by spark plasma sintering (SPS) without the addition of any sintering aid.
ORRU', ROBERTO, LOCCI, ANTONIO MARIO, LICHERI, ROBERTA, MUSA, CLARA, CAO, GIACOMO   +4 more
core   +1 more source

Perspectives Toward Damage‐Tolerant Nanostructure Ceramics

Advanced Science, Volume 11, Issue 24, June 26, 2024.
Selective topics of damage‐tolerant nanostructure ceramics, including elastic nano‐fibrous ceramic aerogels, load bearing nanoceramics, machine learning assisted simulations of microstructure‐properties relationship, are revived in the present manuscript.
Meicen Fan, Tongqi Wen, Shile Chen, Yanhao Dong, Chang‐An Wang   +4 more
wiley   +1 more source

Zwilżanie i łączenie HfB2 i Ta z Ni

, 2010
The wetting behavior of Ni on a HfB2/Ta assembly was examined in vacuum using dense HfB2 (99.5% purity) produced, without sintering aids, by HP-HT at 7 GPa.
Sobczak, N., Nowak, R., Passerone, A., Valenza, F., Jaworska, L., Capurro, M., Barberis, F., Muolo, M. L.   +7 more
core