Abstract Scanning electron microscopy shows that the microstructure, in particular overall grain size, of chemical vapor deposited silicon carbide coatings depends on deposition temperature. So far, influence microstructure mechanical properties such is not well described literature. To investigate temperature coating, nanoindentation used this work. Since measurement results can be affected by...

• LDPE films with controlled crystalline morphology were successfully prepared by dip coating method. Accelerate weathering experiment performed to study the influence of spherulite dimension on aging process. An increase erosion process for presenting largest spherulites is observed. Crack initiation favored film dimension. Erosion and crack propagation found be independent measured carbonyl i...

The current research determines the most recent developments in natural fibres reinforced polylactic acid composites. Polylactic (PLA) is derived from renewable resources and capable of degrading microorganisms, eliminating pollution caused by petrochemical-based plastic. PLA promising biodegradable material among polymers since it easily attacked bacteria decomposes easily, releasing H2O, CO2,...

Dry-ice particle blasting is similar to sand blasting, plastic bead blasting, or soda blasting where a media is accelerated in a pressurized air stream (or other inert gas) to impact the surface to be cleaned or prepared. With dry-ice blasting, the media that impacts the surface is solid carbon dioxide (CO2) particles. One unique aspect of using dry-ice particles as a blast media is that the pa...

We present a novel method for efficient production of prototypes microwave components by fused depositing modeling, also known as 3D plastic printing, and vapor deposition coating 1 ?m copper layer. demonstrate that the properties follow predicted performance low power propagation. The offers new opportunities cheap mock-ups advanced-geometry tests with low-power microwaves.

Mechanical properties of plasma-irradiated and surface-coated wood plastic composites (WPCs) have been investigated in this paper. WPCs were developed by injection molding technique using fiber (WF) as reinforcement polypropylene (PP) matrix. The short, discontinuous WF was compounded with thermoplastic PP at varying weight fractions 0 wt%, 25 wt% (WP25), 50 (WP50) to yield tensile test specime...

The impact wear resistance of the hard coating is very important in high-temperature environment nuclear power plant. CrN and CrAlN coatings were prepared using multi-arc ion plating. abrasive was investigated at varied temperatures through a controlled kinetic energy rig, their mechanism elucidated. No extensive spalling found on surface after 104 impacts under no-sand condition. excellent ant...

Human embryonic stem cells (hESCs) are pluripotent cells with self-renewal ability, derived from the inner cell mass of a human blastocyst. They have the remarkable potential to develop into different cell types and can thus be used to regenerate and restore damaged tissues and organs in the entire body. Hence, hESCs are of great importance when it comes to future cell-based therapies. In addit...