POST PHASE I RESULTS

 

Page5.2.jpg (40661 bytes)

Click on Image

Comparison chart of CxA vs. Al203 ceramic-on ceramic
THR components with varying diametral clearance.         
                       (Al203, 48-61 microns; CxA #2, 82 microns; CxA #3, 214 microns.)   
              

                    Work partially supported by NIH SBIR Grant # IR43AR44140A1.  

 

Page6.4.jpg (34237 bytes)

                                                                 Click on Image

Comparison chart of mismatch effect on wear
(weight loss) at 1.5 Mc of CxA vs. Metal THR sets.

 

 

21 Mc Steady State Wear Rate (mm3/Mc)

THR                                   CxA                          M-M(1)*                           M-M(2)**

S/S Heads                          .005                           .085                                  .419

S/S Liner/Cups                   .013                           .035                                  .086

Total S/S                            .018                           .120                                  .505

 

THR Wear Ratio  :        M-M(1)       =     6.7
                                    CxA-CxA

                                     M-M(2)       =     28.1
                                    CxA-CxA

 

*     10.0 Mc   Sulzer- 1 (Metasul)
**     4.3 Mc   Sulzer- 2 (Metasul)

 

Ref. "High, Biphasic Wear-resistance for Metal-Metal and Ceramic-Ceramic THR in Simulator Studies"
I.C Clarke, et al, J-ORS NARA Oct. 99

 

Previous  Home