第八周碩博專討演講公告(11/04)
2021.11.04
碩博專討演講公告
題目:
The mechanical and electrochemical properties of Silicon oxycarbonitride (SiCNO) ceramic film derived from polysilazane preceramic precursor
主講人:胡龍豪 教授(英文： Prof. Lung-Hao Hu)
現職:國立中山大學 機械與機電工程學系 副教授
內容摘要:
The polymer derived SiCNO ceramics have high hardness, high temperature stability, high chemical stability, wear resistance, high corrosion resistance and biological inertness. In this study, the mechanical and electrochemical properties of SiCNO ceramic films are measured at different pyrolytic temperatures, and the mechanical properties of SiCNO ceramic films are enhanced by incorporated with different nano ceramic powders and synthetic ceramic fillers in liquidic polysilazane preceramic precursor. Wet chemical and pyrolytic process is used to reduce zirconium oxide uniformly distributed in liquidic polysilazane preceramic precursor via sodium borohydride and zirconium n-propoxide to form zirconium oxide embedded silicon carbonitride (ZrO-SiCN(O)) ceramic composite film. Its average hardness (H*) and modulus of elasticity (E*) achieve 11.54 GPa and 101.2 GPa, respectively. Its index of elastic strain to failure, H*/E* and fracture toughness index, H*3/E*2 can reach 0.114 and 0.115 GPa. The average hardness and reduced modulus of elasticity are enhanced 25.2 % and 30.2% as ZrO embedded in SiCN(O) ceramic film. The copper foam is coated with SiCN(O) ceramic film as the working electrode whose corrosion potential is 0.52 V that is 23 times higher than that of the pure copper foam as the working electrode.
時間:民國110年11月04日 星期四
地點:moodle上觀看線上影片及成功大學成功校區三系館鋼構區(3F)共同教室 A1302演講廳
歡迎參加!!
題目:
The mechanical and electrochemical properties of Silicon oxycarbonitride (SiCNO) ceramic film derived from polysilazane preceramic precursor
主講人:胡龍豪 教授(英文： Prof. Lung-Hao Hu)
現職:國立中山大學 機械與機電工程學系 副教授
內容摘要:
The polymer derived SiCNO ceramics have high hardness, high temperature stability, high chemical stability, wear resistance, high corrosion resistance and biological inertness. In this study, the mechanical and electrochemical properties of SiCNO ceramic films are measured at different pyrolytic temperatures, and the mechanical properties of SiCNO ceramic films are enhanced by incorporated with different nano ceramic powders and synthetic ceramic fillers in liquidic polysilazane preceramic precursor. Wet chemical and pyrolytic process is used to reduce zirconium oxide uniformly distributed in liquidic polysilazane preceramic precursor via sodium borohydride and zirconium n-propoxide to form zirconium oxide embedded silicon carbonitride (ZrO-SiCN(O)) ceramic composite film. Its average hardness (H*) and modulus of elasticity (E*) achieve 11.54 GPa and 101.2 GPa, respectively. Its index of elastic strain to failure, H*/E* and fracture toughness index, H*3/E*2 can reach 0.114 and 0.115 GPa. The average hardness and reduced modulus of elasticity are enhanced 25.2 % and 30.2% as ZrO embedded in SiCN(O) ceramic film. The copper foam is coated with SiCN(O) ceramic film as the working electrode whose corrosion potential is 0.52 V that is 23 times higher than that of the pure copper foam as the working electrode.
時間:民國110年11月04日 星期四
地點:moodle上觀看線上影片及成功大學成功校區三系館鋼構區(3F)共同教室 A1302演講廳
歡迎參加!!