Results 151 to 160 of about 150,205 (384)
CO2 laser ablation, a fast, inexpensive, and reproducible method, is used to create flexible elastomer molds with millimeter‐long cavities for the fabrication of dissolvable polymer needles. Made from PVP, these milli‐needles achieve ≈560 µm penetration into porcine skin, demonstrating their potential for effective transdermal drug delivery.
Matteo Tollemeto+7 more
wiley +1 more source
Columnar grain boundaries are the weakest link in hard coatings: Insights from micro-cantilever testing with bridge notches [PDF]
The effect of columnar grain boundaries on the fracture toughness was investigated using micro-cantilever fracture testing with a bridge notch, and a unique hard coating consisting of two distinct microstructures: one with columnar grains and another with an epitaxial layer.
arxiv
Low‐interfacial toughness PDMS/SiO2 coatings are applied to aluminum substrates and tested under natural high‐altitude conditions. The coatings demonstrate strong anti‐icing, icephobic, and large‐scale deicing performance. Field results highlight delayed freezing, reduced ice adhesion, and stable durability, offering practical insights into the use of ...
Tao Zhu+7 more
wiley +1 more source
EXPERIMENTAL STUDY ON FRACTURE TOUGHNESS OF MULTILAYER WELD JOINT BASED ON MICROSTRUCTURE
Quasistatic fracture toughness tests have done on SAW multilayer weld joint of Ni Cr Mo V scaled steel. The test result shows that the dispersion of fracture toughness J of SAW multilayer weld joint was large.
WU HaiLi, JIA GuoQing, AN ChunXiang
doaj
Comparing polymer matrix composites with conventional composites, such as continuous fiber-reinforced composites, shows a considerable increase in strength and fracture toughness.
Madhavi Polepalli+6 more
doaj +1 more source
This study investigates how laser‐micromachined patterns enhance the interfacial and mechanical properties of bioinspired ceramic composites. The ±45° micro‐pattern significantly improved interfacial bonding and damage dissipation energy by 107%, while integrating micro‐ and macro‐designs increased energy absorption by 60%.
E. Azad+4 more
wiley +1 more source
Survey of fracture toughness test methods [PDF]
Comprehensive survey presents current methods of fracture toughness testing that are based on linear elastic fracture mechanics. General principles of the basic two dimensional crack stress field model are discussed in relation to real three dimensional ...
Brown, W. F., Jr.+2 more
core +1 more source
Progress in Flexible Perovskite Solar Cells: Paving the Way for Scalable Manufacturing
Perovskite solar cells (PSCs) are well positioned for a successful market uptake. This is due to an unprecedented improvement of their efficiency and stability since the first report in 2009. In this review paper, the building blocks for the scalable manufacturing and future commercialization of flexible PSCs and their pathway to impact will be ...
Dimitar I. Kutsarov+5 more
wiley +1 more source
Characterization of sintered SiC by using NDE [PDF]
Capabilities of projection microfocus X-radiography and of ultrasonic velocity and attenuation for characterizing silicon carbide specimens were assessed. Silicon carbide batches covered a range of densities and different microstructural characteristics.
Baaklini, George Y.
core +1 more source