This work proposes the design of laser-textured patterns for development surfaces with high anchor densities capable promoting solid mechanical bonding highly abrasive sintered diamond/carbide-reinforced. Cu-based composite coatings excellent wear resistance. The results show dense and well-adhered onto how higher nucleation TiC/Fe3C on diamond favours its greater within matrix, preventing grap...

Replacing high-strength frictional materials with lightweight composite alternatives is currently a global challenge for researchers. In this work, aluminum alloy (AA2900)-based metal-matrix composites reinforced 6 wt.% α-alumina were fabricated then subjected to T6 heat treatment followed by case hardening. The resulting samples exhibited improved hardness, strength behavior, and stress–strain...

We propose a simple and low-cost process for the preparation of porous Ti foams through a sponge replication method using single-step air sintering at various temperatures. In this study, the apatite-forming ability of air-sintered Ti samples after 21 days of immersion in simulated body fluid (SBF) was investigated. The microstructures of the prepared Ca-P deposits were examined by X-ray diffra...

Studies have been conducted to find Materials with microstructures which Minimize the formation of blisters. A promising class of materials appears to be sintered metal powder with small average grain sizes and low atomic number Z. Studies of the surface erosion of sintered aluminum powder (SAP 895) and of aluminum held at AOO'C due to blistering by 100 keV helium ions have been conducted and t...

A sintered hydroxyapatite (HAP) ceramic for use in wear studies was prepared from a commercial tricalcium phosphate. The sintered HAP had physical properties close to those of human enamel. The coefficient of friction and wear of the sintered HAP ceramic as characterized by tangential force, track width, and surface failure data, approximated those of human enamel.

Mesoporous Ni–alumina catalysts (Ni–alumina-pre and Ni–alumina-post) were synthesized by one-step sol–gel method using micelle complex comprising lauric acid and nickel ion as a template with metal source and using aluminum sec-butoxide as an aluminum source. The Ni–alumina catalysts showed relatively high surface areas (303 m/g for Ni–alumina-pre and 331 m/g for Ni–alumina-post) and narrow por...

Novel blue pigments based on Ba0.956Mg0.912Al10.088-xNixO17 (0 ≤ x 0.3) and Ba0.956Mg0.912Al10.088-xCoxO17 solid solutions were successfully synthesized by state method. The XRD results confirmed the structure of as-synthesized sample belongs to hexagonal β-alumina with space group P63/mmc. d-d electron transitions in Ni2+/Co2+ tetrahedral sites visible light range are reason for colors. Then, ...

The sintering temperature and holding time have a significant impact on the densification of ceramic compact. In this study, alumina inserts were made with varying temperatures times. procedure began compacting powders inside mould trapezium round shapes. These then sintered between 1200 °C 1400 for 5 to 9 h time. samples underwent analysis based shrinkage size, density, microstructure. sample ...

Hydroxyapatite (HA) has been used clinically to treat bone defects. However, modifications of the surface properties of HA could improve and control bone matrix deposition and localized host tissue integration. The aim of this study was to investigate the effect of developing a surface charge on HA discs with respect to osteoblast activity in vitro. HA discs (12 mm x 2 mm) were sintered in eith...