When this process occurs, molecular chains can orient in the fiber direction . 在此處理過程中,分子鍵能沿纖維軸向定向排列。
Progress in research of oriented glass - ceramics 定向排列玻璃陶瓷的研究進展
Part one reverse micelle is an aggregation formed by surfactant spontaneously arraying in non - aqueous solvent 第一部分反膠束是指表面活性劑在非水溶劑中定向排列而自發形成的一種聚集體。
The directional alignment of crystal , on the one hand , effectively controls crack propagation paths and increases strength ; on the other hand , induces anisotropy 云母晶體的定向排列可有效控制裂紋走向,顯著提高其強度,也導致材料的各向異性。
A uniaxial hot - pressing test and a physical modeling simulation are performed to investigate the orientational alignment of crystals , and a new attempt to strengthen mica glass - ceramics is made 摘要利用單軸熱壓變形物理模型進行實驗類比,對強化云母微晶玻璃的新途徑晶體定向排列進行了研究。
The results show that the completion degree of orientational alignment in mica plates remarkably varies in different sites of sample body , which is attributed to uneven deformation under the uniaxial hot - pressing condition 結果表明:在單軸壓縮變形方式下,云母微晶玻璃材料截面上的流變程度不均勻,導致晶體定向排列程度差異大。
The crystal alignment in sample center is not obviously orientational , while the mica crystal in peripheral area is highly directionally aligned owing to the intense viscous flow of glass phase and rotation of mica crystal 樣品徑向中心定向排列不明顯,而靠近周邊部位因玻璃相和云母晶體的強烈黏滯流變和轉動,使云母晶體高度定向排列。
The results revealed that there exists an optimum polarization temperature and polarization intensity of electric field ( ep ) for each system , under which regularly orientated polarization and excellent piezoelectric properties can be achieved 結果表明,對各壓電復合材料均存在一個最佳的極化溫度和最佳極化電場( ep ) 。此時,壓電陶瓷在體系中的極化定向排列程度最高,復合體系的壓電性能最優。
The degree of graphitization and diameter of cnts increased with elevated temperature , which showed that high temperature improved the catalysis of catalyst , and was attributed to uniform arrangement of atomic carbon , and hindered amorphous carbon 隨著生長溫度的升高,催化劑的活性提高,有利于碳的有序排列,生長的碳納米管直徑增大。氨氣對納米碳管的定向排列影響顯著,而氫氣、氮氣則無影響。
Common rock samples have been shown to have velocity orthotropy according to measured experimental results . the anisotropy of rock is cased mainly by three factors ( 1 ) aligned cracks . ( 2 ) the intrinsic anisotropy of mineral crystal as the results of crystallization 對巖石樣品的測試發現,在普通巖石具有速度正交各向異性特性,既有定向排列的裂縫和巖石的結晶所致,也有層理與巖性特征(定向顆粒或孔隙)構成。