1234 Evaluation of effect of surface topography on fixation of artificial joint in vitro

2005 ◽  
Vol 2005.5 (0) ◽  
pp. 209-210
Author(s):  
Kenichi YAMASAKI ◽  
Koji HATTORI ◽  
Hideo KONDO ◽  
Shigehiro HASHIMOTO ◽  
Yoshinori TAKAKURA ◽  
...  
Keyword(s):  
Surface Topography ◽  
Artificial Joint ◽  
Effect Of Surface

Cytotoxicity and Adhesion Evaluation of Nanothickness Ca/P-Based Bioceramics Coated Titanium

2008 ◽  
Vol 396-398 ◽  
pp. 319-322
Author(s):  
Caroline M. Ramirez ◽  
Paulo Guilherme Coelho ◽  
José Mauro Granjeiro
Keyword(s):  
Cell Adhesion ◽  
Surface Topography ◽  
Dental Implants ◽  
Biological Response ◽  
Biological Evaluation ◽  
Titanium Implants ◽  
3T3 Fibroblasts ◽  
Plasma Sprayed ◽  
Effect Of Surface

Incorporation of bioceramics on the surface of dental implants has been utilized in an attempt to increase biological response of bone to materials. This paper reports the in vitro biological evaluation of Ca/P-based nanothickness bioceramic coated alumina-blasted/acid-etched titanium implants (AB/AE nanotite implant) and compare its performance to the untreated and uncoated implants, Ca/P-based nanothickness bioceramic coated untreated implants (untreated nanotite implant), alumina-blasted/acid-etched titanium implants (AB/AE implant) and hydroxyapatite plasma-sprayed implants (PSHA Implant). Balb/c 3T3 fibroblasts were used to asses the cytocompatibility of implant materials according to ISO-10993-5 protocols. Osteoblasts from Balb/c femurs seeded onto different implant surfaces showed the effect of surface topography and chemistry on cell adhesion. The results showed that all implants were not cytotoxic and that PSHA and AB/AE nanotite implants favored osteoblasts adhesion.

Effect of surface topography on the frictional behavior at the micro/nano-scale

Wear ◽  
2003 ◽  
Vol 254 (10) ◽  
pp. 1019-1031 ◽  
Author(s):  
In-Ha Sung ◽  
Hyung-Suk Lee ◽  
Dae-Eun Kim
Keyword(s):  
Surface Topography ◽  
Frictional Behavior ◽  
Nano Scale ◽  
Effect Of Surface

Modeling of residual stresses by correlating surface topography in machining of AISI 52100 steel

2021 ◽  
pp. 1-26
Author(s):  
Chao Liu ◽  
Yan He ◽  
Yufeng Li ◽  
Yulin Wang ◽  
Shilong Wang ◽  
...  
Keyword(s):  
Residual Stress ◽  
Residual Stresses ◽  
Cutting Force ◽  
Surface Topography ◽  
Analytical Model ◽  
Analytical Models ◽  
Workpiece Surface ◽  
Dynamic Cutting Force ◽  
Intermittent Cutting ◽  
Effect Of Surface

Abstract The residual stresses could affect the ability of components to bear loading conditions and also the performance. The researchers considered workpiece surface as a plane and ignored the effect of surface topography induced by the intermittent cutting process when modeling residual stresses. The aim of this research develops an analytical model to predict workpiece residual stresses during intermittent machining by correlating the effect of surface topography. The relative motions of tool and workpiece are analyzed for modeling thermal-mechanical and surface topography. The influence of dynamic cutting force and thermal on different positions of surface topography is also considered in analytical model. Then the residual stresses model with the surface topography effect can be developed in intermittent cutting. The analytical models of dynamic cutting force, surface topography and residual stresses are verified by the experiments. The variation trend of evaluated values of the residual stress of workpiece is basically consistent with that of measured values. The compressive residual stress of workpiece surface in highest point of the surface topography are higher than that in the lowest point.

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