Laser printing of micro-electronic communication systems for smart implants applications

Abstract

A hybrid approach for printing micro-wires on titanium substrate were presented.• The resistivity of the micro-wires was assessed via experimental and computational.• A comparative study between laser and anodizing for insulation layer was performed.• Laser technology was successfully used in additive and subtractive approaches.

Multi‐scale modeling for frequency‐dependent dielectric responses of non‐uniform porous carbon fiber/mullite composites

“…Consequently, the electrons accumulated at the interface decrease with the AC frequency. In addition, F I G U R E 5 Effective (A) dielectric permittivity and (B) electrical conductivity of non-uniformly dispersed porous carbon fiber/mullite composites with respect to the carbon fiber volume concentration at 9 GHz behavior and the ceramic propert larly in the Sejnène region, northw the chemical composition, these c terized by high iron contents who of the ceramic materials is well k of fluxing agents as alkali and alk are necessary for low temperatur considered materials consist entir containing impurities, mostly ill iron, which serve as fluxing agen at low temperature [3][4][5][6] and appeare physical and mechanical propertie ramic materials.…”

“…These materials can be used for ceramic production that they have appropriate chemical and mineralogical compositions composed of kaolinite and illite often contain various impurities including SiO 2 , CaO, Fe 2 O 3 , and alkali, certainly that are advantageous for its workability, moulding, drying behavior, firing behavior, and quality of the ceramic products like mechanical strength and porosity. 3 Thus, study of the suitability of these clayey materials to produce ceramic products with low porosity and high mechanical performance intended for applications for stoneware production is fundamentally important for the development of the ceramic sector in Tunisia and the raw material supply for building and construction. Depending on their mechanical and physical properties, utilization of the manufactured ceramic materials is suggested for various applications and they are mainly designed as building materials such as fired bricks, roof tiles, pavements, wall, and floor tiles.…”

“…As a typical example of ceramic, mullite ceramic (3Al 2 O 3 ⋅ 2SiO 2 ) is a prior candidate for application in the complex high-temperature environment due to excellent thermal stability, lightweight, high strength and good corrosion resistance in the extreme environment. 19,20 However, the behavior and the ceramic propert larly in the Sejnène region, northw the chemical composition, these c terized by high iron contents who of the ceramic materials is well k of fluxing agents as alkali and alk are necessary for low temperatur considered materials consist entir containing impurities, mostly ill iron, which serve as fluxing agen at low temperature [3][4][5][6] and appeare physical and mechanical propertie ramic materials.…”

“…In the past decades, the dielectric responses of micro-electronic devices have been a hotspot due to the rapid development in the modern electronic and communication industry. [1][2][3] Typical examples include electromagnetic interference shielding component, 4,5 energy storage equipment, 6,7 microwave absorption device, 8 etc. Generally, ordinary composites can be classified into the polymer-based, 9,10 metal-based, 11 and ceramic-based composites 12,13 according to the matrix material.…”

Selective Laser Melting of Ti6Al4V sub-millimetric cellular structures: Prediction of dimensional deviations and mechanical performance

“…Metallic biomaterials such as stainless steel, CoCr alloys, Ti and Ti6Al4V have been extensively used as orthopedic biomaterials. Ti6Al4V alloy has drawn increasing attention owing to its excellent mechanical and biological performance and also corrosion resistance (Moura et al, 2019(Moura et al, , 2020. When considering metallic implants, the elastic modulus is one of the most crucial parameters in terms of mechanical performance (Ataee et al, 2018;Weiβmann et al, 2016).…”