| Summary: | 碩士 === 國立中央大學 === 機械工程研究所 === 99 === Amorphous alloys have excellent properties about mechanical properties, corrosion resistance, and antimicrobial ability. This research choose different types scalpel blades – commercial scalpels, scalpels made of amorphous alloy, and scalpels coat with amorphous alloy thin film, and use these scalpel to cut the rubber plate. The composition of the amorphous alloy is about Zr-Cu-Ni-Al-Ni and Zr-Cu-Ag-Al-Si, After the cutting experiment, we calculate the data to compare the blade sharpness of the different scalpels.
At first, the scalpels of metallic glass (MG) were checked by XRD to ensure its amorphous state, and then do the cutting experiment. The results of cutting test revealed that the Blade Sharpness Index (BSI) of 0.260 for the scalpels made of Zr based MG and 0.252 for the scalpels made of Zr-Cu based MG, and 0.335 for the commercial scalpels, respectively. In summary, the sharpness can be improved about 22.4% to 24.8% for the Zr-based and ZrCu-based MG scalpel.
Moreover, the results of cutting test also show that the BSI of 0.249 for the scalpel which coating the Zr based MG thin film by DC pulse magnetron sputtering process, and 0.231 for the Zr-Cu based, and sharpness can be improved about 25.7% and 31%. The scalpels with coating MG thin film are sharper than the commercial scalpels.
The scalpels made of MG and the scalpel blade coats with MG thin film, these scalpels both sharper than the commercial scalpel blades. Due to the excellent properties of the MG, we believe that the MG will be the good choice to make the scalpel blades in the future.
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