(Mo1-x-Crx)Si2 composite powders were successfully synthesized by ball milling of Mo, Cr and Si elemental powders. Effects of the Cr content, milling time and annealing temperature were investigated. X-ray diffraction (XRD) was used to characterize the milled and annealed powders. The morphological and microstructural evolutions were studied by scanning electron microscopy (SEM) and transmissio...

Biodegradable materials are currently attracting the attention of scientists as for implants in reconstructive medicine. At same time, ceramics based on calcium silicates promising bone recovery, because Ca2+ and Si2+ ions necessary mineralization process, they take an active part formation apatite. In presented research, protective silicate biocoatings a Mg0.8Ca alloy were formed by means micr...

In an attempt to compensate for their sessile nature, plants have developed growth responses to deal with the copious and rapid changes in their environment. The process by which plant roots expand in soil involves water uptake through osmosis and imbibition, and an overall increase in size by cell division. Each root apex has sensors to get information from the environment, which is then trans...

Si-Co diffusion coatings were prepared on a Y-modified TiAl-Nb alloy using the pack cementation process. The structures of at different temperatures (1050, 1080, and 1120 °C) Co contents (5, 10, 20 wt.%) comparatively studied. possessed typical structure (Ti,X)Si2+Ti5Si4 (X represents Nb Al elements) outer layer with Co-rich superficial zone, Ti5Si4+Ti5Si3 middle layer, TiAl2 inner layer. Incre...