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Synthesis and characterization of Ba(Co_xNb_(1-x))O_3 nanoparticles by hydrothermal processing

Synthesis and characterization of Ba(Co_xNb_(1-x))O_3 nanoparticles by hydrothermal processing
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摘要 The nanosized Ba(CoxNb1-x)O3(BCN) particles were prepared under high temperature and pressure conditions by precipitation from metal nitrates with aqueous potassium hydroxide. Ba(CoxNb1-x)O3 powders were obtained in the temperature range of 170-210 ℃ for 6 h. The results show that the average size of the synthesized particles increases with increasing reaction temperature. The average size of the synthesized particles is about 10 nm. The crystalline phase of the synthesized particles is found to be Ba(CoxNb1-x)O3. Ceramics derived from the nano BCN powders could achieve high sintering density at a relatively low sintering temperature. The nanosized Ba(CoxNb1-x)O3(BCN) particles were prepared under high temperature and pressure conditions by precipitation from metal nitrates with aqueous potassium hydroxide. Ba(CoxNb1-x)O3 powders were obtained in the temperature range of 170-210 ℃ for 6 h. The results show that the average size of the synthesized particles increases with increasing reaction temperature. The average size of the synthesized particles is about 10 nm. The crystalline phase of the synthesized particles is found to be Ba(CoxNb1-x)O3. Ceramics derived from the nano BCN powders could achieve high sintering density at a relatively low sintering temperature.
出处 《中国有色金属学会会刊:英文版》 CSCD 2009年第B09期92-95,共4页 Transactions of Nonferrous Metals Society of China
基金 supported by the Ministry of Education,Science Technology (MEST) and Korea Industrial Technology Foundation (KOTEF) through the Human Resource Training Project for Regional Innovation
关键词 纳米粒子 合成 臭氧 热加工 表征 平均粒径 烧结温度 氢氧化钾 Ba(CoxNb1-x)O3 powders nanoparticles hydrothermal processing
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