Advanced Ceramics at ICACC19
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Advanced ceramics are experiencing a boom. After attending ICACC19, an expo for researchers and industry professionals dedicated to the topic, we offer a peek inside the fascinating world of transparent and translucent ceramic composites.
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Advanced Ceramics at ICACC19
- 2. ALESSANDRO FIORESE TRATTAMENTI TERMICI IN VUOTO TECNOLOGIE ADDITIVE MANUFACTURING TAV VACUUM FURNACES R&D Chief Engineer Master’s Degree: Materials Engineering and Nanotechnology Politecnico Milan
- 3. OUR VACUUM FURNACES Meeting Your needs Uncompromising research for quality and customer orientation are the basis of all TAV VACUUM FURNACES solutions. Each furnace is designed according to the specifications and meets the most strict criteria and procedures to ensure compliance with the most stringent industry specifications.
- 4. AT FIRST SIGHT 50 countries 5 Continents Started in 1984 ISO 9001 + AEROSPACE + COMMERCIAL HEAT TREATERS + IGT - INDUSTRIAL GAS TURBINES + HEAT EXCHANGERS INDUSTRY + SINTERING INDUSTRY + ADDITIVE MANUFACTURING + R&D AND LABORATORIES Close collaboration with customers and partners.
- 5. OUR CORE VALUES Flexibility, technology and quality. These three core values have been driving us since 1984 make our company as market leader for vacuum furnaces. This is because of the trust obtained from small and large-sized companies on the international scene. Thanks to its top grade specialization in vacuum engineering, TAV VACUUM FURNACES can design and manufacture top quality vacuum furnaces for a wide range of industries and applications worldwide focusing on constant innovation. R&D department in TAV VACUUM FURNACES is constantly working to ensure a tailor-made product according to customer needs, with regard to innovative technologies. Thanks to our wide know-how in vacuum engineering, we provide customers with a team of professionals who can manage and solve all issues, ranging from design to manufacture, to project management, installation, technical assistance and training. +
- 8. Alumina + + + It can be translucent and transparent High mechanical properties + + + Orthodontic advice Biomedical advice Airborne optics Complex shape
- 9. Opaque Light scatterring can be minimized when ceramics heterogeneities are limited Porosity Grain size + + + Defect concentration
- 10. Sintering We have to minimize porosity and grain size in order to maximize translucence. VACUUM THERMAL PROCES Debinding & Sintering Powder 99,99% pure Pressure 150 mbar Thermal debinding 800 °C for 24 h Sintering From 1350°C to 1500 °C For 2 h and 50 h Air vs Vacuum Sintering + + G. Mata-Osoro et al. / Journal of the European Ceramic Society 32 (2012) 2925–2933
- 11. RESULTS DENSITY SHRINKAGE MICROSTRUCTURE MECHANICAL PROPERTIES OPTICAL PROPERTIES G. Mata-Osoro et al. / Journal of the European Ceramic Society 32 (2012) 2925–2933
- 12. MICROSTRUCTURE 50 h in vacuum 50 h in air 2 h in air 2 h in vacuum Sintered 2h at 1400 °C In air Sintered 2h at 1400 °C In vacuum SEM METHOD G. Mata-Osoro et al. / Journal of the European Ceramic Society 32 (2012) 2925–2933
- 13. DENSITY 50 h in vacuum 50 h in air 2 h in air 2 h in vacuum Archimede METHOD in vacuum in air and SHRINKAGE Dilatometer G. Mata-Osoro et al. / Journal of the European Ceramic Society 32 (2012) 2925–2933
- 14. MECHANICAL PROPERTIES Vickers 1350°C 2h Vacuum 1350°C 2h Air 1350°C 50h Vacuum 1500°C 2h Vacuum 1350°C 50h Air 1450°C 50h Vacuum 1450°C 50h Air METHOD G. Mata-Osoro et al. / Journal of the European Ceramic Society 32 (2012) 2925–2933
- 15. OPTICAL PROPERTIES FTIR METHOD Sintered 1350 °C for 50 h Vacuum Air G. Mata-Osoro et al. / Journal of the European Ceramic Society 32 (2012) 2925–2933
- 16. CONCLUSIONS + Best sintering condition: 1350 °C for 50 h in vacuum + Vacuum sintering guarantee the quasi total absence of porosity and the high stability of grain boundaries. + The same ceramics properties that make transparent samples, are the ones required for high hardness and mechanical properties G. Mata-Osoro et al. / Journal of the European Ceramic Society 32 (2012) 2925–2933
- 17. W O R L D W I DE P R E S E N C E
- 18. CO N TAC T U S info@tav-vacuumfurnaces.com TEL: +39 0363 355711 Via dell'Industria, 11 24043 Caravaggio (BG) - ITALY info@furna.care TEL: 1 864 599 9955 TEL: 1 864 906 4457 100 Corporate Dr Ste A Spartanburg – South Carolina 29303 - USA www.furnacare.com
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