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研究生:廖繼滄
研究生(外文):Jih-Tsang Liaw
論文名稱:鈮酸鋰、鈮酸鈉、鈮酸鉀陶瓷系列之研製及其特性探討
論文名稱(外文):The Fabrication of LiNbO3, NaNbO3, KNbO3 Based Ceramics and Investigation of Their Characteristics
指導教授:朱聖緣朱聖緣引用關係
指導教授(外文):Sheng-Yuan Chu
學位類別:碩士
校院名稱:國立成功大學
系所名稱:電機工程學系碩博士班
學門:工程學門
學類:電資工程學類
論文種類:學術論文
論文出版年:2002
畢業學年度:90
語文別:中文
論文頁數:91
中文關鍵詞:鈮酸鋰鈮酸鈉鈮酸鉀
外文關鍵詞:NaNbO3KNbO3LiNbO3
相關次數:
  • 被引用被引用:5
  • 點閱點閱:531
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  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
鈮酸鉀為一強電性之鈣鈦礦結構材料,在製作其陶瓷體時,由於其燒結溫度需接近其熔點之高溫(1054℃),在此高溫時造成大量氧化鉀的揮發而使其不易燒結,因此我們可藉由摻雜少量鋰作為助熔劑降低其燒結溫度助其燒結,並就此一鈮酸鋰鉀系列之陶瓷體做其物性及電性分析。
  鈮酸鈉為一反強電性材料,在此我們將之與強電性之鈮酸鉀組成鈮酸鉀鈉之多元之陶瓷體,實驗結果顯示在鈉與鋰為1:1時,可得到高達34.55%之徑向振動耦合因數。
最後我們將由前兩多元系統結果中,試圖研製綜合二者優點之多元陶瓷體,並就其壓電特性做一討論。
Potassium niobate (KNbO3) is a ferroelectric material of perovskite structure. However, it is difficult to synthesize pure KNbO3 ceramics since the sintering temperature (1054˚C) is very close to the melting point of KNbO3 ceramics that causes severe volatilization of K2O. Li dopant is introduced as an additive, which forms liquid phase to help to reduce the sintering temperature. Characteristics of material and electrical properties of the Lithium potassium niobate (LixK1-xNbO3) ceramics are investigated.
Sodium niobate (NaNbO3) is an antiferroelectric material. In the second phase of our research, we introduce Sodium niobate in the Potassium niobate system to form Sodium Potassium niobate (NaxK1-xNbO3) ceramics. According to our experimental results, high radial coupling coefficients (34.55%) are obtained for the compound having up to 50mol% sodium niobate.
Finally, the ternary system that mixes Lithium potassium niobate and Sodium Potassium niobate ceramic is introduced. The characteristics of the piezoelectric property are investigated, also.
第一章 緒論...................................01
第二章 原理...................................03
2-1 壓電效應...................................03
2-2 壓電方程式.................................05
2-3 壓電諧振體.................................07
2-4 壓電材料之種類與ABO3陶瓷材料...............09
2-5 壓電特性參數...............................12
第三章 製程與量測.............................15
3-1 陶瓷體的製備...............................15
3-2 分析與測量.................................17
第四章 結果與討論.............................23
4-1 鈮酸鋰鉀系列之多元陶瓷體特性探討...........23
4-2 鈮酸鈉鉀系列之多元陶瓷體特性探討...........28
4-3 鈮酸鋰鈉鉀系列之多元陶瓷體特性探討.........32
第五章 結論...................................34
附圖...........................................36
參考文獻.......................................90
參考文獻
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