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International Journal of Bioprinting                                 Acoustic analysis of 3D-printed ossicles




            Table 4. Frequency displacement analysis
             Category       Ossicular combination                                  Frequency (Hz)
                                                                         500           1000          2000
             Simulation     TC4+TC4+HA/PCL (TTH)                       1.428E-5      9.564E-6      3.790E-6
                            TC4+316L+HA/PCL (T3H)                      1.599E-5      7.022E-6      2.667E-6
                            TC4+HA/PCL+HA/PCL (THH)                    1.058E-5      1.099E-5      2.572E-6
                            316L+TC4+HA/PCL (3TH)                      9.083E-6      7.066E-6      2.241E-6
                            316L+316L+HA/PCL (33H)                     4.575E-6      4.533E-6      1.548E-6
                            316L+HA/PCL+HA/PCL (3HH)                   4.751E-6      5.266E-6      9.463E-7
                            HA/PCL-TC4-HA/PCL (HTH)                    9.490E-6      1.2905E-5     2.741E-6
                            HA/PCL-316L-HA/PCL (H3H)                   5.232E-6      7.874E-6      1.553E-6
                            HA/PCL-HA/PCL-HA/PCL (HHH)                 1.046E-5      9.766E-6      1.180E-6
             Experiment     TC4+TC4+HA/PCL (TTH)                       6.775E-6      4.049E-6      1.064E-6
                            TC4+316L+HA/PCL (T3H)                      5.674E-6      3.613E-6      1.057E-6
                            TC4+HA/PCL+HA/PCL (THH)                    6.284E-6      2.264E-6      1.009E-6
                            316L+TC4+HA/PCL (3TH)                      3.283E-6      3.146E-6      7.415E-7
                            316L+316L+HA/PCL (33H)                     3.275E-6      2.336E-6      9.048E-7
                            316L+HA/PCL+HA/PCL (3HH)                   3.751E-6      2.266E-6      8.463E-7
                            HA/PCL-TC4-HA/PCL (HTH)                    5.349E-6      5.790E-6      1.741E-6
                            HA/PCL-316L-HA/PCL (H3H)                   6.232E-6      3.874E-6      9.531E-7
                            HA/PCL-HA/PCL-HA/PCL (HHH)                 4.546E-6      4.766E-6      6.802E-7



                                -3.0
                                                          316L
                                -4.0
                                                          TC4
                                -5.0
                              Log(Current/A)  -6.0


                                -7.0

                                -8.0

                                -9.0

                               -10.0
                                   -0.8    -0.6    -0.4    -0.2    0.0    0.2     0.4
                                                         Potential/V


                                               Figure 8. Polar potential curve of samples.


            1.26 g/cm . The mass of the stapes was reduced to 0.57   incus long leg, and incus short leg), with a density of 2.36
                    3
            times the normal value. Additionally, the elastic modulus   g/cm , 5.08 g/cm , and 2.26 g/cm , and the elastic modulus
                                                                   3
                                                                            3
                                                                                         3
            of the stapes decreased from 14.1 GPa to 769.2 MPa, and   was 14.1 GPa. When the incus part was TC4, the masses of
            the Poisson’s ratio decreased by 0.3. The difference among   the three parts were 1.91, 0.87, and 1.99 times the normal
            the  three  combinations  was  the  incus  part  (incus  body,   value, respectively, and the elastic modulus increased from
            Volume 10 Issue 3 (2024)                       333                                doi: 10.36922/ijb.2040
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