The most important property required for any structural composite material is high strength to weight ratio and corrosion resistance. To improve the interfacial addition between carbon fiber and epoxy resin, the epoxy matrix has been modified with hybrid resin. The unidirectional carbon/epoxy composites were prepared with different weight proportions of two resins (hybrid resin) with parts by weight(PBW). In this paper unidirectional carbon fiber T700 used as reinforcement and hybrid resin used as matrix for preparing the Uni-Directional(UD) laminate and Naval Ordnance laboratories(NOL) ring specimens. These specimens are prepared with filament winding technique, specimens were tested as per ASTM standards and test was conducted on Instron 4505 with 100KN capacity. From the test results it has been observed that the tensile strength measured by NOL ring specimens are more trustable than the results obtained with unidirectional(UD) test specimens. NOL ring test data is useful for making composite pressure vessels for aerospace applications.
With the introduction ofbiocompatible materials like titanium and other bio ceramics and added advantages of preservation of tooth structure, implants have created a new era in dentistry as treatment option for missing teeth. Earlier short coming oflack of bonding with bone are overcome by osseointegration property of titanium and zirconia implants. This osseointegration rate of titanium dental implants is related to surface composition, surface roughness and hydrophilicity which increase the mechanical stability of implants. The present review throws some light on various methods employed for surface modifications.
AIM & OBJECTIVE
Aim of this paper is to discuss various surface treatment methods of Implants and its effect on osseointegration.
CONCLUSION
There are various surface modified implants available. Studies have proven that these implants show better osseointegration compared to machined implants.
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