rhombohedral crystal system 中文意思是什麼
rhombohedral crystal system
解釋
菱形晶格- rhombohedral : adj. 斜方六面體的；【化學】棱形的；三角晶的。
- crystal : n 1 結晶，（結）晶體；晶粒；水晶（＝rock crystal）；石英。2 【無線電】晶體。3 結晶玻璃；雕玻璃；...
- system : n 1 體系，系統；分類法；組織；設備，裝置。2 方式；方法；作業方法。3 制度；主義。4 次序，規律。5 ...
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The influence that the zr / ti ratios have on the ceramic crystal structure and its properties are studied through the research carried out about the relative respects of the fabricated samples. the increase of zr / ti ratio can result in the crystal structure transformation from the tetragonal to the rhombohedral, it can also induce the weakness in the stability of the ceramic crystal structure, for example, the drop in the curie temperature. in order to enhance the relative low mechanical quality factor of pzn - pzt system piezoceramics, component addition pb ( mn1 / 3sb2 / 3 ) o3 ( hereafter abbreviated as pms ) are introduced in to form a new psudo - tetragonal system ceramics
為獲得具有高的機電耦合系數kp ，高的機械品質因數qm的高性能壓電陶瓷，採用二次合成法制備了不同zr ti比的鈮鋅酸鉛-鋯鈦酸鉛基（ pzn - pzt ）三元系壓電陶瓷材料，研究了zr ti比變化對陶瓷結構和性能的影響規律，發現zr ti比增大除了可以使陶瓷的相結構由四方相向三方相轉化外，還降低了陶瓷的結構的穩定性，使tc溫度下降。
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