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高压水热法的最佳工艺条件为：水热反应温度为260℃、反应时间为22h、Li/Nb为1.10、原料浓度为1.0mol/L、搅拌速度为300r/min、SDS含量为0.5％。高压水热法合成的纳米铌酸锂粉体为球形，其粒度约为86nm，纳米铌酸锂球形粒子之间存在一定程度的团聚。但高压水热法合成的纳米铌酸锂粉体粒度分布均匀。 以水热法合成的粉体为原料进行烧结实验。通过XRD、SEM等手段，对不同烧结温度下LiNbO3陶瓷的组织形貌进行研究，并测试了压电性能。研究表明：水热粉体表现出良好的烧结性能，在烧结温度为1080℃时，可以得到烧结致密的铌酸锂陶瓷；烧结温度对铌酸锂烧结体的压电性能影响较大，1100℃下得到的烧结体压电性能较好，压电常数为60pC/N。 |
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hool 
捐助贵宾 (正式写手)
木星之王
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ninghx(金币+5,VIP+0):挺好的，谢谢了哈！
ninghx(金币+5,VIP+0):挺好的，谢谢了哈！
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The optimum technical conditions of high pressure hydrothermal method include: reaction temperature of 260℃, reaction time of 22 hours, Li and Nb with the ratio of 1.10, raw material concentration of 1.0mol/L, mixing rate of 300r/min, and the SDS concentration of 0.5 percent. With spherical shape, the lithium niobate nano-powder synthesized by the above method has an average size of 86nm. Furthermore, though the spherical nanoparticles might congregate in a certain extent, the synthesized nano-powder is well-distributed. 这是第一段的翻译，麻烦楼主看看怎么样？ |
3楼2008-04-07 15:03:52
元小雪
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2楼2008-04-07 13:01:26
matureboy
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| 2 the optimum conditions of high pressure hydrothermal synthesis are: the reaction temperature is 260 ℃, and the reaction time is 22 h,the concentration of raw materials is 1.0mol/L, the ration of chemical reagents (Li / Nb)is 1.10,the speed of agitation is 300 r / min, the content of SDS is 0.5％. The size of LiNbO3 nano-particles Synthesized by high pressure hydrothermal synthesis is spherical, the size of particles is 86 nm, though the spherical nanoparticles might congregate in a certain extent, the synthesized nano-powder is well-distributed. |
4楼2008-04-07 18:36:40
matureboy
铁杆木虫 (正式写手)
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ninghx(金币+4,VIP+0):挺好的，谢谢楼主了哈！
ninghx(金币+4,VIP+0):挺好的，谢谢楼主了哈！
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3 we did the experiment through the powder synthsized by hydrothermal synthesis methods as as raw materials, by the methods of XRD, SEM, ,we study the morphous of LiNbO3 ceramic under different sintering temperature,and the results show that: hydrothermal powder did well in sintering performance, we can obtain the sintered compact lithium niobate ceramics under the temperature 1080℃. The sintering temperature have a greater impact on the lithium niobate’s piezoelectric properties, the sintering under 1100℃perform better in piezoelectric property,and the piezoelectric constant is 60 pC / N. 有些地方翻译的不是很正确，还请多多包涵． |
5楼2008-04-07 19:01:25
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