Results 71 to 80 of about 19,206 (299)

Experimental evaluation of toughening mechanisms in alumina-zirconia composites

open access: yes, 1999
The contributions of transformation toughening and microcrack toughening in an 85Al(2)O(3). 15ZrO(2) (vol%) composite were quantitatively evaluated. Three types of hot-pressed samples with similar size (similar to 0.5 mu m) and size distribution of ZrO2 ...
Shin, YS, Kang, Suk-Joong L, Rhee, YW
core   +1 more source

Toughening Wet-Spun Silk Fibers by Silk Nanofiber Templating

open access: yes, 2022
Toughening Wet-Spun Silk Fibers by Silk Nanofiber ...
KAS Usman (14446347)   +11 more
core  

Ablation‐Immune Thermal Armor Via Microstructural‐Compatibility Design for Extreme Thermal Conditions

open access: yesAdvanced Science, EarlyView.
This study unveils a microstructural‐compatibility design strategy that integrates reactive melt infiltration with plasma spraying to fabricate carbon fiber‐reinforced ZrC‐SiC composites. The deliberate incorporation of SiC into the ZrC coating releases heat accumulation, suppresses detrimental lamellar ZrO2 formation, and reduces residual stress. This
Hongkang Ou   +6 more
wiley   +1 more source

Development and Application of Adhesive Materials for Advanced Composite Bonding

open access: yesCailiao gongcheng, 2018
To meet the needs of large composite bonding for aircraft, development, comprehensive experimental and application of adhesive materials have been carried out.
QIAO Hai-tao   +6 more
doaj   +1 more source

Self‐Healing Ionogel Dual‐Network Enables Synergistic Defect Passivation and Strain Relief for High‐Efficiency Robust Perovskite Photovoltaics

open access: yesAdvanced Science, EarlyView.
PSCs are afflicted by inherent defects and lattice strain that limit PCE and stability. A cross‐linked multifunctional ionogel [HA‐AA][EMIES] is developed to modulate crystallization, relieve residual strain, and passivate defects, extending carrier diffusion length to over 8 µm and delivering PCEs of 26.45% for rigid devices and 25.14% for flexible ...
Wen Wu   +12 more
wiley   +1 more source

Mechanical properties of polypropylene/calcium carbonate nanocomposites

open access: yesMaterials Research, 2009
The aim of this work was to study the influence of calcium carbonate nanoparticles in both tensile and impact mechanical properties of a polypropylene homopolymer.
Daniel Eiras, Luiz Antonio Pessan
doaj   +1 more source

Role of lubricant with a plasticizer to change the glass transition temperature as a result improving the mechanical properties of poly(lactic acid) PLLA

open access: yesMaterials Research Express, 2020
Poly (lactic acid) (PLLA) is the best important bioplastics derived from renewable resources like blackstrap molasses (sugar beet, date palm and sugar cane).
Hatem R Alamri   +4 more
doaj   +1 more source

Toughening by nanostructure

open access: yesPolymer, 2008
AbstractBlock copolymer modified epoxy resins have generated significant interest since it was demonstrated that the combination could lead to nanostructured thermosets through self-assembly. Over moderate to high polymer concentration the system behaves as expected for a block copolymer in a solvent selective for one block.
Ruiz-Pérez, L   +3 more
openaire   +2 more sources

Strengthening Constitutive Motifs in Isotropic Fibrous Hydrogel for Exceptional Damage Resistance

open access: yesAdvanced Science, EarlyView.
An orientation‐free strategy is reported for fabricating damage‐resistant hydrogels by strengthening constitutive motifs in isotropic fibrous (IF) networks. Through nonsolvent quenching followed by salting‐out, IF networks are generated and their multiscale constituents are subsequently reinforced, yielding dense and crystalline isotropic nanofiber ...
Bolin Wan, Xule Yang, Liju Xu, Dong Qiu
wiley   +1 more source

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