The article reports the fabrication of cellulose-layered double hydroxide (LDH) obtained by urea hydrolysis method. A wide characterization was carried out to assess morphological, spectroscopic and barrier properties LDH modified cellulose. cellulose-LDH then used as hybrid reinforcement in polyurethane (PU) composites. slight improvement thermal stability PU achieved a better hydrophilicity o...

A357-SiCp/A357 layered composites were prepared using a semi-solid vacuum stirring suction casting method. The microstructures, mechanical properties, and thermal conductivities of the fabricated under different processes compared. Additionally, microstructural evolution characteristics performance enhancement mechanism discussed. results demonstrate that at 610 °C with low solid phase ratio ca...

• Few-layered-graphene (FLG) films of very homogeneous thickness have been deposited on the surface grains a 3YSZ ceramic powder. A high level densification these composite materials has achieved by using Spark Plasma Sintering process. FLG's levels distribution at grain boundaries result in electrically conductive with less than 1.98 vol.% carbon content. Materials anisotropic electrical condu...

This article highlights advancements in polymeric composite/nanocomposites processes and applications for improved radiation shielding high-rate attenuation the spacecraft. Energetic particles, mostly electrons protons, can annihilate or cause space craft hardware failures. The standard practice electronics is utilization of aluminum as safeguard structural enclosure. In space, materials must b...

in this study, ultrafine grained 2024 al alloy based b4c particles reinforced composite was produced by mechanical milling and hot extrusion. mechanical milling was used to synthesize the nanostructured al2024 in attrition mill under argon atmosphere up to 50h. a similar process was used to produce al2024-5%wt. b4c composite powder. to produce trimodal composites, milled powders were combined w...

Poly(vinyl chloride) (PVC), an important thermoplastic polymer widely-used in various fields, requires the use of thermal stabilizers to enhance its stability during processing and practical applications because poor stability. Layered double hydroxides (LDHs), two-dimensional anionic layered versatile filler, are widely considered be one kind high-efficient environment-friendly PVC stabilizers...

In the field of genetic research and the subsequent rise of biobanks an intensive discussion is taking place on national and international levels about property and personality rights to one’s own body and body parts. The authors attempt to develop on the basis of the current controversially discussed law a concept of property, which can solve the legal and bioethical problems of the multiple u...

Natural nacre, which consists of almost 95 vol% inorganic content (calcium carbonate) and 5 vol% elastic biopolymers, possesses a unique combination of remarkable strength and toughness, which is attributed to its hierarchical nano-/ microscale structure and precise inorganic–organic interface. Inspired by the intrinsic relationship between the structures and the mechanical properties lying in ...