Recent developments in ceramic nanocomposites

DENSIFICATION AND MECHANICAL PROPERTIES OF TiB2-SiC NANOCOMPOSITE WITH SILICON CARBAID AS A SINTERING AID

“…Gleiter's research demonstrated that if materials were nano crystalline, drastic changes in mechanical, electrical and chemical properties could be achieved. 1 Nanocomposites were classified into 4 categories according to figure 1, by Niihara method: 1 Intergranular, Intragranular, Hybrid, and Nano/nano composite.…”

“…1 Recently usage of nano hard materials like nitrides, carbides and borides were developed quickly. [2][3][4] Titanium diboride is one of the famous ceramics that contains excellent physical and mechanical properties, such as high melting point, high hardness, abrasion resistance and high electrical conductivity.…”

“…Classification of ceramic nanocomposites: (a) inter-type, (b) intra-type, (c) hybrid-type, (d) nano/nanotype. 1 Titanium diboride has attracted much attention for various applications such as cutting tools, armor and wear-resistance materials and cathode material in aluminum refining due to its excellent properties. [6][7][8][9][10] Nowadays, application of TiB 2 is limited mainly due to its low sinterability and poor mechanical properties, such as flexural strength and fracture toughness.…”

Zirconium Aluminum Carbides: New Precursors for Synthesizing ZrO2–Al2O3 Composites

“…B ecause of their excellent mechanical and thermal properties as well as biocompatibility, ZrO 2 –Al 2 O 3 composites and coatings have wide applications in advanced structural components, thermal barrier coatings, and biomaterials 1–7 . In the past two decades, nano‐ and submicrometer‐crystalline composites have received increasing attention due to their improved and unique mechanical and chemical properties over their microcrystalline counterparts 8–11 . The structure and properties of the final nano‐ and submicrometer‐crystalline composites are strongly dependent on the properties of the initial precursors and composite powders, such as their homogeneity, particle size and distribution, and phase purity.…”

Investigation of C/Si3N4 Nanocomposites

“…In this way, through formation of tough interlocking microstructure mechanical properties may be improved. Intensive research work has been done to improve physical and mechanical properties of silicon nitride ceramics through nanocomposite processing [3]. To increase the fracture toughness, incorporation of various energy-dissipating components into ceramic matrices have been performed [4].…”