In situ construction of a titanate–silver nanoparticle–titanate sandwich nanostructure on a metallic titanium surface for bacteriostatic and biocompatible implants

2012 ◽  
Vol 22 (36) ◽  
pp. 19151 ◽  
Author(s):  
Na Ren ◽  
Rui Li ◽  
Limei Chen ◽  
Guancong Wang ◽  
Duo Liu ◽  
...  
Keyword(s):  
Silver Nanoparticle ◽  
Titanium Surface ◽  
Metallic Titanium

scholarly journals Anti-Galling Cold, Dry Forging of Pure Titanium by Plasma-Carburized AISI420J2 Dies

2021 ◽  
Vol 11 (2) ◽  
pp. 595
Author(s):  
Tatsuhiko Aizawa ◽  
Tomoaki Yoshino ◽  
Yohei Suzuki ◽  
Tomomi Shiratori
Keyword(s):  
Pure Titanium ◽  
Solid Lubrication ◽  
Cold Forging ◽  
Contact Interface ◽  
Metallic Titanium ◽  
Low Friction ◽  
Debris Particles ◽  
Titanium Wire ◽  
Oxide Debris

A bare AISI420J2 punch often suffers from severe adhesion of metallic titanium as well as titanium oxide debris particles in dry, cold forging of biomedical titanium alloys. This punch was plasma-carburized at 673 K for 14.4 ks to harden it up to 1200 HV on average and to achieve carbon supersaturation in the carburized layer. This plasma-carburized punch was employed in the cold, dry forging of a pure titanium wire into a flat plate while reducing the thickness by 70%. The contact interface width approached the forged workpiece width with increasing the reduction ratio. This smaller bulging deformation reveals that the workpiece is upset by homogeneous plastic flow with a lower friction coefficient. This low-friction and anti-galling forging process was sustained by an in situ solid lubrication mechanism. Unbound free carbon was isolated from the carbon-supersaturated AISI420J2 matrix and deposited as a thin tribofilm to protect the contact interface from mass transfer of metallic titanium.

Multilayer modification on titanium surface for in situ delivery of MicroRNAs

2014 ◽  
Vol 133 ◽  
pp. 243-246 ◽  
Author(s):  
Xinming Zhang ◽  
Shengli Zhu ◽  
Zhaoyang Li ◽  
Xubo Yuan ◽  
Zhenduo Cui ◽  
...  
Keyword(s):  
Titanium Surface

scholarly journals Electrical Sintering of Silver Nanoparticle Ink Studied by In-Situ TEM Probing

PLoS ONE ◽  
2011 ◽  
Vol 6 (2) ◽  
pp. e17209 ◽  
Author(s):  
Magnus Hummelgård ◽  
Renyun Zhang ◽  
Hans-Erik Nilsson ◽  
Håkan Olin
Keyword(s):  
Silver Nanoparticle ◽  
In Situ Tem ◽  
Nanoparticle Ink
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