Results 21 to 30 of about 27,273 (291)

Toughening and hardening in double-walled carbon nanotube/nanostructured magnesia composites [PDF]

open access: yes, 2010
Dense double-walled carbon nanotube (DWCNT)/nanostructured MgO composites were prepared using an in situ route obviating any milling step for the synthesis of powders and consolidation by spark-plasma-sintering.
Estournès, Claude   +4 more
core   +1 more source

TEM characterisation of near surface deformation resulting from lubricated sliding wear of aluminium alloy and composites [PDF]

open access: yes, 2007
Aluminium alloy composites have been extensively investigated for use in tribo-contact applications, however little detailed literature exists on the sub-surface microstructural evolution as a result of lubricated sliding wear.
Rainforth, W.M.   +7 more
core   +1 more source

Friction and Wear of Polyamide 66 Composites Filled with RB Ceramics Particles under Dry Condition

open access: yesTribology Online, 2010
This study investigated the effect of a particle diameter and a weight fraction of RB ceramics particles on friction and wear of polyamide 66 composites filled with RB ceramics particles (PA66/RB ceramics composites) sliding against a bearing steel ball ...
Motoharu Akiyama   +3 more
doaj   +1 more source

Mechanical properties of B12-based orthorhombic metal carboborides MC2B12 (M= Mg, Ca, Sr, Sc, Y). A first principle study

open access: yesNext Materials
Structural and mechanical properties of B12-based orthorhombic metal carboborides are studied on the basis of first principle DFT approach. The simulations predict the existence of a new family of phases of the composition MC2B12 (M=Mg, Ca, Sr, Sc, Y ...
Oleksiy Bystrenko   +10 more
doaj   +1 more source

Mechanochemical Synthesis and Characterization of Nanostructured ErB4 and NdB4 Rare‐Earth Tetraborides

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
ErB4 and NdB4 nanostructured powders are produced by mechanochemical synthesis. 5 h mechanical alloying and 4 M HCl acid leaching are used in the production. ErB4 and NdB4 powders exhibit maximum magnetization of 0.4726 emu g−1 accompanied with an antiferromagnetic‐to‐paramagnetic phase transition at about TN = 18 K and 0.132 emu g−1 with a maximum at ...
Burçak Boztemur   +5 more
wiley   +1 more source

Electric-field structuring of piezoelectric composite materials [PDF]

open access: yes, 1999
Piezoelectric composite materials, consisting of a ferroelectric ceramic in an electrically-inactive polymer matrix, have been shown to greatly outperform single phase materials for certain applications.
Wilson, Stephen A.
core   +6 more sources

High-throughput screening of Ta1−xHfxCy ceramics for mechanical and oxidation performance optimization for ultra-high-temperature applications

open access: yesJournal of Advanced Ceramics
Ta1−xHfxCy ternary ceramics are highly valued in hypersonic vehicles, and a precise composition design is promising to simultaneously reduce their intrinsic brittleness and enhance their protective capability during oxidation.
Xirui Lv   +4 more
doaj   +1 more source

Research progress of high temperature microwave-absorbing ceramic matrix composites

open access: yesJournal of Aeronautical Materials, 2019
Microwave-absorbing ceramic matrix composites play an important role in the development of heat-resisting stealthy materials due to their excellent high-temperature mechanical property, superior corrosion resistance and oxidation resistance.
HU Yue   +5 more
doaj   +1 more source

Revisiting Stability Criteria in Ball‐Milled High‐Entropy Alloys: Do Hume–Rothery and Thermodynamic Rules Equally Apply?

open access: yesAdvanced Engineering Materials, Volume 27, Issue 6, March 2025.
The stability criteria affecting the formation of high‐entropy alloys, particularly focusing in supersaturated solid solutions produced by mechanical alloying, are analyzed. Criteria based on Hume–Rothery rules are distinguished from those derived from thermodynamic relations. The formers are generally applicable to mechanically alloyed samples.
Javier S. Blázquez   +5 more
wiley   +1 more source

Bioactive ceramic-reinforced composites for bone augmentation [PDF]

open access: yes, 2010
Biomaterials have been used to repair the human body for millennia, but it is only since the 1970s that man-made composites have been used. Hydroxyapatite (HA)-reinforced polyethylene (PE) is the first of the ‘second-generation’ biomaterials that have ...
K. E. Tanner, Tanner, K.E.
core   +1 more source

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