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| ²ÉÓô«Í³¹ÌÏà·¨ÖÆ±¸(1-x)[0.95£¨Na0.5K0.5)NbO3-0.05LiNbO3]-xBiGaO3 £¨¼ò³ÆKNNL-BG-x£©Ñ¹µçÌÕ´É£¬Ñо¿Ìúµç»¯ºÏÎïBiGaO3¶ÔKNNL-BG-xÌմɵÄÏà½á¹¹ºÍµçѧÐÔÄܵÄÓ°Ï죬ÓÃXÉäÏßÑÜÉäÒÇ(XRD)ºÍɨÃèµç¾µ£¨SEM£©¡¢Ñ¹µç²âÁ¿Òǵȣ¬·ÖÎöKNNL-BG-xÎÞǦѹµçÌմɵÄÌմɵÄÁ£¾¶´óС¡¢±íÃæÐÎò¡¢Ñ¹µçÐÔÄÜ¡£½á¹û±íÃ÷£ºËùÓÐÑùÆ·¶¼³Êµ¥Ò»ÏàµÄ¸ÆîÑ¿ó½á¹¹£¬Ã»ÓÐÔÓÏà,¾ùΪËÄ·½Ïà½á¹¹,d33ºÍkpµÄÖµ¶¼Ëæ×ÅxµÄÔö´óÏÈÔö´óºó¼õС£¬ÔÚx=0.005´¦»ñµÃ×î´óÖµ£ºd33=280 pC/N£¬kp=49%£¬²¢ÇÒËæ×ÅxµÄÔö¼ÓÄܹ»ÒÖÖÆ¾§Á£µÄÉú³¤²¢ÇÒ¼õСÑõ¿Õ¶´£¬»ñµÃÖÊÃܶȸߣ¬¾§Á£¾ùÔȵIJúÆ· |
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- ³æºÅ: 3863495
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ÎÄÒÔBi2O3¡¢GaO2¡¢BaCO3¡¢TiO2¡¢ZrO2ºÍCaCO3ΪÔÁÏ£¬²ÉÓô«Í³µÄ¹ÌÏà·¨£¬°´ÕÕ»¯Ñ§¼ÆÁ¿±ÈÖÆ±¸(1-x)(Ba0.8Ca0.2)(Ti0.8Zr0.2)O3-xBiGaO3ÌÕ´ÉÑùÆ·£¬ÆäÖÐx=0.02¡¢0.05¡¢0.08¡¢0.11£¬ÒÔÇóÖÆµÃÐÔÄܸüºÃµÄÌÕ´ÉÑùÆ·¡£Ö÷ÒªÔËÓÃXÉäÏßÑÜÉäÒÇ£¨XRD£©ºÍɨÃèµç¾µ£¨SEM£©¶ÔÆä΢¹Û½á¹¹¼°Æä½éµçÐÔÄܽøÐзÖÎö£¬²¢ÇÒ¶ÔʵÑéÑùÆ·µÄÖÆ±¸¼°¸÷¸ö·½Ãæ¶¼½øÐÐÑо¿£¬ÒÔÇóÖÆµÃ¸üΪÁ¼ºÃµÄÌմɲÄÁÏ¡£ ÔÚ°ïÎÒ·ÒëһϠлл£¡£¡£¡ |
3Â¥2015-06-07 00:36:40
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°®ÓëÓêÏÂ: ½ð±Ò+1 2015-05-15 22:41:57
°®ÓëÓêÏÂ: ½ð±Ò+1 2015-05-15 22:41:57
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The (1-x)[0.95£¨Na0.5K0.5)NbO3-0.05LiNbO3]-xBiGaO3(KNNL-BG-x) piezoelectric ceramic was prepared based on traditional solid-state method. The effects of ferroelectric compounds to the phase structure and electrical performance of KNNL-BG-x were investigated , and the particle size, surface morphology and piezoelectric properties of KNNL-BG-x lead-free piezoelectric ceramics were analyzed by XRD, SEM and piezoelectric measurement machine in this paper. The results showed that all the samples possessed single phase perovskite structure with tetragonal phase structure and no impurity phase. The d33 and kp increased first and decreased afterwards with the increase of X. The maximum of d33 and kp (d33=280 pC/N£¬kp=49%) were obtained at x=0.005. The product with high mass density and uniform crystal grains was preparated due to that with the increase of X, grain growth was inhibited and the oxygen hole was decreased. |

2Â¥2015-05-12 08:12:57
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- ·ÒëEPI: 68
- Ó¦Öú: 135 (¸ßÖÐÉú)
- ¹ó±ö: 1.097
- ½ð±Ò: 14467.1
- É¢½ð: 3921
- ºì»¨: 102
- ɳ·¢: 3
- Ìû×Ó: 2121
- ÔÚÏß: 396.8Сʱ
- ³æºÅ: 1783324
- ×¢²á: 2012-04-27
- ÐÔ±ð: GG
- רҵ: »·¾³¹¤³Ì

4Â¥2015-06-07 10:56:06














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