Microwave Sintering Facility |
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Unique features:The size of the metallic cavity was 40 × 62 cm. A high density (99.9%), doubly recrystallized alumina tube of 7.1 cm diameter and 67 cm in length was positioned at the center of the furnace. All the sintering experiments for metallic powder compacts are usually conducted in hydrogen. The full-density alumina tube prevents any gas leakage. Furthermore, pore-free alumina is transparent to microwaves and does not heat up. Thus, the temperature rise during sintering is solely due to microwave-metal interaction. An insulation package made of Fibrefrax TM boards was used to surround the tube at the center of the cavity to minimize heat loss. The design was so made that it could be used both with and without the use ofsuscept or secondary coupler. The sintering studies can be conducted using SiC plates. The temperature measurement is carried out using an infrared pyrometer (model: M680, supplier:Mikron Inc., USA). The infrared pyrometer output was coupled witha PC based data acquisition and display software. |
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Location: |
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Powder Metallurgy Laboratory, Department of Materials and Metallurgical Engineering, |
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Contact: |
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Prof. Anish Upadhyaya This email address is being protected from spambots. You need JavaScript enabled to view it. |
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