Joint reduction of zirconium dioxide and sodium carbonate to form zirconium carbide was studied. Magnesiothermic reduction of ZrO2 was shown to occur at 600 - 620 degrees C; Na2CO3, 590 - 610 degrees C. Thermodynamic calculations and x-ray phase analyses indicated the transformations occurring during the synthesis and the resulting reaction products. Use of graphite as the carbon source did not lead to ZrC formation at 700 - 900 degrees C, in contrast with Na2CO3.
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Chonnam Natl Univ, Coll Engn, Dept Ind Engn, Gwangju 61186, South KoreaChonnam Natl Univ, Coll Engn, Dept Ind Engn, Gwangju 61186, South Korea
Chung, Sang-Wook
Ganorkar, Shraddha
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Sungkyunkwan Univ, Sch Mech Engn, Adv Mech & Mat Design Lab, Suwon 16419, South KoreaChonnam Natl Univ, Coll Engn, Dept Ind Engn, Gwangju 61186, South Korea
Ganorkar, Shraddha
Kim, Seong-Il
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Korea Inst Sci & Technol, Innovat Enterprise Cooperat Ctr, Seoul 02792, South KoreaChonnam Natl Univ, Coll Engn, Dept Ind Engn, Gwangju 61186, South Korea
机构:
Indian Assoc Cultivat Sci, Sch Mat Sci, Energy Res Unit, Jadavpur, Kolkata 700032, IndiaIndian Assoc Cultivat Sci, Sch Mat Sci, Energy Res Unit, Jadavpur, Kolkata 700032, India
Shyam, Sukalyan
Das, Debajyoti
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Indian Assoc Cultivat Sci, Sch Mat Sci, Energy Res Unit, Jadavpur, Kolkata 700032, IndiaIndian Assoc Cultivat Sci, Sch Mat Sci, Energy Res Unit, Jadavpur, Kolkata 700032, India