Manufacturing Technology of Ceramic Pebbles for Breeding Blanket
Abstract
:1. Introduction
2. Materials and Methods
2.1. Drip Casting
2.1.1. Li4SiO4 Pebbles Fabrication Process
2.1.2. Slurry and CaCl2 Solution Preparation
2.2. Experimental Apparatus
3. Experimental
4. Summary
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Fabrication Process | Raw Materials | Main Process Phases | Diameter and Density |
---|---|---|---|
Melt-spraying [15,16,17,18] | LiOH + SiO2 | 1. Melting | Φ: 0.25 ÷ 0.63 mm (50%) ρ > 0.90 TD |
2. Dropping | |||
3. Quenching | |||
4. Annealing (2 h at 1000 °C) | |||
Li2CO3 + SiO2 | 1. Melting | Φ: 0.8 ÷ 1.0 mm (50%) ρ > 0.90 TD | |
2. Dropping | |||
3. Quenching | |||
4. Annealing (2 h at 1000 °C) | |||
Sol-gel [19,20] | LiOH in citric acid suspension (C6H8O7) + SiO2 (aerosol) | 1. LiOH + citric acid + water | Φ: 1.2 mm ρ = 0.74 TD |
2. Silica addition | |||
3. Vaporizing at 70 °C | |||
4. Dropping into acetone | |||
5. Calcining + sintering (4 h at 900 °C) | |||
Capillary-based microfluidic [21] | C2H3O2Li·2H2O + SiO2 lithium acetate dihydrate | 1. Stirring raw materials. | Φ: 0.84 mm ρ = 0.82 TD |
2. Inlet T junction with silicon oil | |||
3. Vaporization and drying | |||
4. Silicon oil removal (72 h at 120 °C) | |||
5. Calcining + sintering (4 h at 750 °C) | |||
Wet process with substitution [15] | LMT powder | 1. Dropping LMT + sodium alginate + 4HF in zinc chloride | Φ: 0.238 mm ρ = 0.89 TD |
2. Calcining | |||
3. Sintering |
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Lo Frano, R.; Puccini, M.; Stefanelli, E.; Del Serra, D.; Malquori, S. Manufacturing Technology of Ceramic Pebbles for Breeding Blanket. Materials 2018, 11, 718. https://doi.org/10.3390/ma11050718
Lo Frano R, Puccini M, Stefanelli E, Del Serra D, Malquori S. Manufacturing Technology of Ceramic Pebbles for Breeding Blanket. Materials. 2018; 11(5):718. https://doi.org/10.3390/ma11050718
Chicago/Turabian StyleLo Frano, Rosa, Monica Puccini, Eleonora Stefanelli, Daniele Del Serra, and Stefano Malquori. 2018. "Manufacturing Technology of Ceramic Pebbles for Breeding Blanket" Materials 11, no. 5: 718. https://doi.org/10.3390/ma11050718