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Study of Phase Constitution of La_2O_3-H_3BO_3-C System During High-temperature Sintering AITranslate

School of Materials and Metallurgical of Northeast University;School of Materials and Metallurgical of Northeast University;School of Materials and Metallurgical of Northeast University;School of Materials and Metallurgical of Northeast University
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Publisher: Editorial Office of Rare Metals and Cemented Carbides
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Abstract AITranslate

Study is made of the phase constitution of La2O3-H3BO3-C system during high-temperature sintering in argon atmosphere by means of XRD and TG-DTA.The results show that dehydration of H3BO3 occurs at 82~390 ℃;in 3 steps as follows:first formation of HBO2 at 82~153 ℃,then formation of H2B4O7 in 153~222 ℃,and finally formation of B2O3 in 287~390 ℃.At 836~1 400 ℃,La2O3 and B2O3 react with C to form LaB3O6 and LaBO3;at 1 450 ℃,La2O3,B2O3 and C react into LaBO3 and B4C.At this time,LaBO3 phase is predominant.The c...

KeyWords AITranslate

La2O3-H3BO3-C system high-temperature phase constitution lanthanum boride lanthanum borate

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Basic Information:

DOI:

Chinese Library Classification Number:O614.331[理学—无机化学]

Citation Information:

Study is made of the phase constitution of La2O3-H3BO3-C system during high-temperature sintering in argon atmosphere by means of XRD and TG-DTA.The results show that dehydration of H3BO3 occurs at 82~390 ℃;in 3 steps as follows:first formation of HBO2 at 82~153 ℃,then formation of H2B4O7 in 153~222 ℃,and finally formation of B2O3 in 287~390 ℃.At 836~1 400 ℃,La2O3 and B2O3 react with C to form LaB3O6 and LaBO3;at 1 450 ℃,La2O3,B2O3 and C react into LaBO3 and B4C.At this time,LaBO3 phase is predominant.The c...

quote

GB/T 7714-2015 [1] XU Jing-yu, WU Wen-yuan, PENG Ke-wu, et al. Study of Phase Constitution of La_2O_3-H_3BO_3-C System During High-temperature Sintering[J]. Rare Metals and Cemented Carbides, 2008(1): 5-10.
MLA [1] XU Jing-yu, et al., "Study of Phase Constitution of La_2O_3-H_3BO_3-C System During High-temperature Sintering." Rare Metals and Cemented Carbides, no. 1, 2008, pp. 5-10.
APA [1] XU Jing-yu, WU Wen-yuan, PENG Ke-wu, & TU Gan-feng. (2008). Study of Phase Constitution of La_2O_3-H_3BO_3-C System During High-temperature Sintering. Rare Metals and Cemented Carbides(1), 5-10.
IEEE [1] XU Jing-yu, WU Wen-yuan, PENG Ke-wu, and TU Gan-feng, "Study of Phase Constitution of La_2O_3-H_3BO_3-C System During High-temperature Sintering," Rare Metals and Cemented Carbides, no. 1, pp. 5-10, 2008. keywords: {La2O3-H3BO3-C system;high-temperature;phase constitution;lanthanum boride;lanthanum borate}