The heterovalent solid solution Sr 1-x Y x F 2+x with fluorite structure (sp. gr. Fm3m) can be synthesized in single-crystal and nanoceramic forms. Comparison of their electrical properties shows that nanoceramics have a higher ionic conductivity than single crystals the same composition. In state solution, migration mechanism dominates interstitial ions F' i bulk sample, ther is vacancy V o al...

OBJECTIVE Evaluation of wear behavior of computer-aided design/computer-aided manufacturing (CAD/CAM) crowns from various restorative materials and natural antagonists. METHOD Full CAD/CAM crowns fabricated with nanoceramic resin (Lava Ultimate (LU)), a glass ceramic in a resin interpenetrating matrix (Vita Enamic (VE)) and a lithium silicate reinforced ceramic enriched with zirconia (Vita Su...

In this work, we present experimental studies for the processing of TiO2/ TiCxO1−x Nanoceramic Composite. This paper reports the synthesis of TiO2/ TiCxO1−x composite with Ti/C ratio 50:30 via spark plasma sintering route (SPS). The sinterability, microstructure and mechanical properties of the SPS processed sample was optimized with considering time and temperature. TiCxO1−x was reinforced in ...

In order to improve the corrosion and wear resistance of biomedical Ti-6Al-4V implants, a Ta₂N nanoceramic coating was synthesized on a Ti-6Al-4V substrate by the double glow discharge plasma process. The Ta₂N coating, composed of fine nanocrystals, with an average grain size of 12.8 nm, improved the surface hardness of Ti-6Al-4V and showed good contact damage tolerance and good adhesion streng...

The aim of this in vitro study was to evaluate and compare the color stability of different esthetic restorative materials (one microfilled composite, one nanofilled composite, one nanoceramic composite, one microfilled hybrid composite, one microfilled hybrid composite, one nanohybrid Ormocer based composite and one supra-nano spherical hybrid composite) after exposure to different staining so...

Aim: Evaluate the influence of cervical margin relocation (CMR) on stress distribution in lower first molar restored with direct nano-ceramic composite (zenit). Methods: A 3D model was modeled and used. Standardized mesio-occluso-distal (MOD) preparation consisted two models used this study mesial subgingival II. applied II using flowable or resin glass ionomer (Riva). Both were nanoceramic the...

The utilization of waste fibers in the production reinforced concrete materials offers several advantages, including reducing environmental strain and socio-economic impacts associated with composite waste, as well enhancing material performance. This study focuses on development cementitious mortars using secondary carbon fibers, which are by-products derived from industrial conversion recycle...