晶形

Among the 16 approximants, seven of them are new phases. The stable decagonal quasicrystal with a period of 3.72 nm along the tenfold axis is reported for the first time.

高分辨像表明，十次准晶近似相的基本结构单元是由两圈各十个亮像点组成的同心十边形原子团簇。

Based on the classical nucleation theory and the time-dependent nucleation theory, the thermodynamics and the kinetics for the nucleation of decagonal quasicrystal have been discussed in det...

大量实验结果表明，惰性形核涂层的非晶化程度、熔体过热度、过热保温时间以及循环过热次数等工艺参数将显著影响熔体的初始过冷度。

At last, the growth mechanism selection of the decagonal quasicrystal was also achieved by means of changing the structure of the nucleation substrate, which provides the direct experimental evidence for the theoretical research of quasicrystal.

且当熔体过冷度大于临界值时，单相准晶生长将发生从侧向生长向连续生长的粗糙化转变，最后通过改变触发形核衬底结构类型实现了连续和侧向两种生长机制的自由选择。

Texture is obtained by hot-pressing deformation at 700℃ with a deformation rate of 10－4～10－3/s and, with the increment of deformation ratio,(006) texture is further strengthened. In addition, the initial texture of Nd-Fe-B

在700℃，形变速率为10－4～10－3/s的热压变形工艺下，得到以(006)晶面的衍射峰为主峰的织构，即(006)织构，随形变量的增大，(006)织构进一步增强。

Fractal dimension can be used to describe the morphology of tertiary dendrite.

可以用分形维数来描述三次枝晶的形态。

These growth units were absorbed and join the crystal lattice on the growth interface through collision and aggregation.The powders with better crystallinity and double cone or tetrahedron shape were obtained after amorphous ZnS was treated by solventthermal method.

采用溶剂热处理高浓度条件下制备的ZnS无定形粉末，得到晶态结构完整，形状为双锥状或四面体状的粉末。

The results show that liquid zinc would nucleate and grow up rapidly on the surface of crystal nucleus eradiation equipment with cooling system when the vibrant equipment was inserted into zinc solution.

为提高铸坯的等轴晶率和凝固组织的均匀性，以金属锌为研究对象进行了大量的振动激发金属液形核实验。

Because it equipped with an excellent compactibility and a low chemical reactivity, it makes the MCC to become one of the most useful excipient of direct compression tableting.

由於其具备良好的压锭性，以及低化学反应活性，使得微晶纤维素被认为是目前最有用的直接压锭赋形剂之一。

The physical and chemical characteristics of two types of fly ashes collected from two municipal solid waste incinerators, including density, particle size distribution, fusibility property, composition and crystalloid structure, have been studied in detail.

应用激光粒度粒形分析仪、灰熔融性测定仪、原子吸收光谱仪和XRD等仪器手段对国内2种垃圾焚烧飞灰的密度、颗粒特性、熔点、成分和晶相结构等物理化学性质进行了详细的研究。

Increasing with the increment of grain size at nucleation side, the thermal conductivity is increased.

形核面晶粒尺寸越大，晶粒间的晶界就减少，有利于提高金刚石自支撑膜的热导率。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。