Bioactivity of Gradient Rare Earths Bioceramic Coating Produced by Wide-Band Laser Cladding

Applied laser ◽  
2012 ◽  
Vol 32 (5) ◽  
pp. 384-389
Author(s):  
李明 Li Ming ◽  
汪震 Wang Zhen
Keyword(s):  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band

The Bioactivity of Gradient Composite Bioceramic Coating with La2O3 Fabricated by Wide Band Laser Cladding

2013 ◽  
Vol 668 ◽  
pp. 91-95
Author(s):  
Qi Bin Liu ◽  
Bang Cheng Yang
Keyword(s):  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band ◽  
Tc4 Alloy ◽  
Good Biocompatibility ◽  
Gradient Coatings ◽  
Number Of Cells

To improve the quality of bioceramic gradient coatings, wide band laser cladding technique was adopted to produce a kind of gradient composite bioceramic coating, which combines the good biocompatibility of HA and β-TCP with good toughness and strength of TC4 alloy. The rare earths oxide La2O3 was added to improve the properties of the bioceramic coating. The results indicate that when the adding of La2O3 is 0.6wt%, the ceramics coating is of the largest amount of HA and β-TCP catalyzed, and the number of cells proliferated and the ALP secreted on coatings is the biggest, which indicates that the biocompatibility and bioactivity of gradient bioceramic coating is the best. The biocompatibility and bioactivity are closely related to the amount of HA and β-TCP catalyzed by La2O3.

Bioactivity of Human Osteoblasts in the Rare Earths Bioceramic Coating Surface Produced by Wide-Band Laser Cladding

Applied laser ◽  
2013 ◽  
Vol 33 (6) ◽  
pp. 628-632
Author(s):  
李宾 Li Bin ◽  
田兴强 Tian Xingqiang ◽  
汪震 Wang Zhen
Keyword(s):  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band ◽  
Human Osteoblasts ◽  
Coating Surface

Bioactivity of Gradient Rare Earths Bioceramic Coating Produced by Wide-Band Laser Cladding

Applied laser ◽  
2012 ◽  
Vol 32 (5) ◽  
pp. 384-389
Author(s):  
李明 Li Ming ◽  
汪震 Wang Zhen
Keyword(s):  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band

0steogenic properties of Human Osteoblasts in the Rare Earths Bioceramic Coating surface Produced by Wide-band Laser Cladding

Applied laser ◽  
2015 ◽  
Vol 35 (3) ◽  
pp. 330-334
Author(s):  
汪震 Wang Zhen ◽  
田兴强 Tian XingQiang ◽  
李宾 Li Bin
Keyword(s):  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band ◽  
Human Osteoblasts ◽  
Coating Surface

Bioactivity of Human Osteoblasts in the Rare Earths Bioceramic Coating Surface Produced by Wide-Band Laser Cladding

Applied laser ◽  
2013 ◽  
Vol 33 (6) ◽  
pp. 628-632
Author(s):  
李宾 Li Bin ◽  
田兴强 Tian Xingqiang ◽  
汪震 Wang Zhen
Keyword(s):  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band ◽  
Human Osteoblasts ◽  
Coating Surface

Gradient Rare-Earths Bioceramic Composite Coating Fabricated by Wide-Band Laser Cladding and its Bioactivity

2009 ◽  
Vol 610-613 ◽  
pp. 1224-1226 ◽  
Author(s):  
Qi Bin Liu ◽  
Ling Wu ◽  
Bang Cheng Yang
Keyword(s):  
Cell Culture ◽  
Alkaline Phosphatase ◽  
Composite Coating ◽  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band ◽  
Culture Experiment ◽  
Tc4 Alloy ◽  
Cell Culture Experiment

A gradient bioceramic composite coating was prepared by wide-band laser cladding technique on TC4 alloy surface. The influence of rare earths oxide CeO2 on microstructure of bioceramic coating was studied. The experimental results indicated that CeO2 plays an important role in inducing HA + β-TCP formation. There is almost no HA+β-TCP in bioceramic coating without CeO2. When CeO2 content is higher than 0.2 wt.%, the amount of HA+β-TCP catalyzed by CeO2 gradually increases. The amount of HA+β-TCP becomes largest when CeO2 content is up to 0.4wt%. However, when CeO2 content ranges from 0.6 wt.% to 0.8 wt.%, the amount of synthesizing HA+β-TCP conversely goes down. Through cell culture experiment in vitro, the effect of bioceramic coating with different CeO2 contents on the expression of characteristic protein is investigated. The results show that the largest amount of expression of hydroxyproline(Hyp) at 2d and alkaline phosphatase(ALP) at 6d on coating is complied with 0.4wt.% CeO2, The result indicates that bioactivity of bioceramic coating is dependent on the amount of HA + β-TCP catalyzed by different CeO2 contents.

Effect of Mixed Multiple Rare Earth Oxide on the Microstructure of Bioceramic Coating Prepared by Wide Band Laser Cladding

2014 ◽  
Vol 989-994 ◽  
pp. 775-778
Author(s):  
Zheng Zhang ◽  
Qi Bin Liu ◽  
Ling Yan Zhang ◽  
Hai Bin Jiang ◽  
Pei Ze Jiang
Keyword(s):  
Titanium Alloy ◽  
Rare Earth ◽  
Laser Cladding ◽  
Rare Earths ◽  
Wide Band ◽  
Rare Earth Oxide ◽  
Experimental Results ◽  
Bioceramic Coatings

In order to researching the microstructure of bioceramic coating on the surface medical titanium alloy (Ti–6Al–4V), the gradient bioceramic coatings are fabricated by wide-band laser cladding. The influence of multiple rare earths oxide La2O3 and CeO2 on microstructure of bioceramic coating were studied. The experimental results demonstrated that mixed La2O3 and CeO2 have an effect on forming-ability of HA\β-TCP in bioceramic coating and also refined the grain of bioceramic coatings. The largest amount of HA\β-TCP is presented among all the groups when the contents of La2O3 and CeO2 are 0.6wt.%, 0.4 wt.%, respectively.

Laser cladding with wide-band scanning rotative polygon mirror

1989 ◽  
Author(s):  
Xi-Chen Yang ◽  
Yu-He Yan ◽  
Men-Lin Zhong ◽  
Jiang-Ting Zhang ◽  
Nai-Kun Zhang ◽  
...  
Keyword(s):  
Laser Cladding ◽  
Wide Band

Laser cladding by 10KW–CO2 laser wide–band scanning pyramid mirror

1994 ◽  
Author(s):  
Yang Xi-Chen ◽  
Wang Bao-Qi ◽  
Wang Yun-Shan ◽  
Zhao Xin ◽  
Cha Hong-Kui ◽  
...  
Keyword(s):  
Laser Cladding ◽  
Co2 Laser ◽  
Wide Band
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