Preparation of BaPbO3 functional ceramics from leaded waste
来源期刊：Rare Metals2014年第5期
论文作者：Bin Li Shen-Gen Zhang Kun Zhang De-An Pan Jian-Jun Tian Hu Liu Alex A.Volinsky
文章页码：598 - 603
摘 要：In this study, Pb was separated and used to prepare BaPbO3 conductive ceramics from leaded waste.The experimental results show that BaPbO3 powder synthesized at 700 °C has particle size of 2–5 lm. The powders were densified by sintering at 1,000 °C for 2 h in the air.Synthesized BaPbO3 ceramics have high Curie temperature and high-temperature positive temperature coefficient（PTC） resistivity characteristics. Electrical resistivity of BaPbO3 compact increases from 5 9 10-6X m at room temperature to 4 9 10-4X m at 750 °C. Compared with the one prepared by pure chemical reagents, the BaPbO3 prepared from leaded waste has the similar characteristics of high Curie temperature and PTC resistivity.
Bin Li1，Shen-Gen Zhang1，Kun Zhang2，De-An Pan1，Jian-Jun Tian1，Hu Liu1，Alex A.Volinsky3
1. Institute for Advanced Materials and Technology, School of Materials Science and Engineering, University of Science and Technology Beijing2. Beijing Nonferrous Metals and Rare Earth Research Institute3. Department of Mechanical Engineering, University of South Florida
摘 要：In this study, Pb was separated and used to prepare BaPbO3 conductive ceramics from leaded waste.The experimental results show that BaPbO3 powder synthesized at 700 °C has particle size of 2–5 lm. The powders were densified by sintering at 1,000 °C for 2 h in the air.Synthesized BaPbO3 ceramics have high Curie temperature and high-temperature positive temperature coefficient（PTC） resistivity characteristics. Electrical resistivity of BaPbO3 compact increases from 5 9 10-6X m at room temperature to 4 9 10-4X m at 750 °C. Compared with the one prepared by pure chemical reagents, the BaPbO3 prepared from leaded waste has the similar characteristics of high Curie temperature and PTC resistivity.
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