| 固相反应法钙钛矿型Pb（Zn1／3Nb2／3）O3的合成 |
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| 引用本文： | 田雨霖. 固相反应法钙钛矿型Pb（Zn1／3Nb2／3）O3的合成[J]. 现代技术陶瓷, 1996, 17(1): 13-17 |
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| 作者姓名： | 田雨霖 |
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| 作者单位： | 南京化工大学材料科学与工程系 |
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| 摘 要： | 用XRD法研究了八面体择位能大的离子对合成钙钛矿型Pb(Zn_(1/3)Nb_(2/3))0_3[PZN]多晶材料的影响。通过对PZN结晶化学参数的分析,认为八面体择位能大的Mn~(3 )离子能有效的抑制焦录石的形成。结果表明在PZN中添加1wt％MnCO_3就能获得完全无焦录石的钙钛矿型结构的PZN陶瓷。文中讨论了相组成和钙钛矿相的稳定机理。
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| 关 键 词： | 焦录石 钙钛矿相 八面体择位能 配位数 晶体场稳定能 |
synthesis of perovskcite-Type Pb(Zn(1/3)Nb_(2/3))O_3 by solid state method |
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| Tian Yuling. synthesis of perovskcite-Type Pb(Zn(1/3)Nb_(2/3))O_3 by solid state method[J]. Advanced Ceramics, 1996, 17(1): 13-17 |
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| Authors: | Tian Yuling |
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| Abstract: | The effects on of the ion of large octahedral site preference energy an synthesis of perovskite-Type PZN polycrystal materials were investigated by XRD. By the examination of crystal chemistry parameters of PZN,it has been shown that the additi of the Mn3 -ion of large octahedral site preference energy can suppress the formation of pyrochlore,The results show that complete perovskite type structure ceramics withoult pyrochlore could be obtained by adding lwt% MnCO3 in PZN samples. In the present paper,the phase constitu-ton and the mechanism of stabilization of perovskite in sample are discussed. |
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| Keywords: | pyrochlore perovskite phase octahedral site preference energy (OSPE) coordination number crystal field stabilization energy (CFSE) |
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