查询词典 crystallite

Magnesite Chrome Brick:Madefrom mainky sintered magnesiteand and chrome oxide,by high pressure shaping shd high temoerature firing, Its characteristic is the high direct-bondigng tate,and big crystallite,it has a good thermal spalling resistance.

具有热膨胀系数小，抗震性好，抗渣性强等特点，广泛应用于工业窑炉。直接结合镁铬砖：以优质镁砂和铬精矿为原料，经高压成型、高温烧成制得。具有结晶大，直接结合率高等特点。

XIE Kuo-jun, ZENG Bao-qing, YANG Zhong-haiAbstract: The crystallite diamond films were synthesized on copper substrate by microwave plasma chemical vapor deposition technique. The field emission characteristics and the electrical characteristics of contacts between metal and diamond file have investigated Electron emission tsting indicates low turn-on voltages.

用微波等离子化学气相沉积法在无氧铜基底上沉积微晶金刚石制作场发射冷阴极阵列，研究场致发射特性和金刚石与铜基底之间的欧姆接触特性。

All ionomers had higher rate of nucleation, characterized by the higher values of Si, overall rate of crystallization, characterized by the higher values of (Tmax-T0), and narrower crystallite size distribution, characterized by the lower values of Δw, than those of pure PP and PP-g-MAH.

对于全部样品在所有的冷却速率下，Avrami指数n值均在2.5-2.8之间，说明聚丙烯结晶行为没有改变；但同时发现接枝及离子化后，成核速率加快，晶粒分布变窄，结晶总速率增大，与等温结晶动力学得到的结论一致。

In this paper, we use the w (the orientation distribution function) to describe the probability density of finding a crystallite with orientation R and find relations between elastic constitutive tensors and the texture coefficients.

在本文中，晶粒取向分布函数w用来描述多晶体中的晶粒取向为R的可能性密度，给出了弹性本构与织构系数之间的关系表达式。

As the magnification is increased,the surfaces are characterized by the stripe form crystallite stackings with the diameter of about 10nm aligned with an angle between ...

首次获得了RCF原子级的STM图像，在原子级尺度上，其原子排列并不规则，相邻原子间距为 0 。14 2nm ，最近六元环中心的距离是 0 。2 5 3nm。

In this study the crystallite diamond directly depositerd on copper and copper directly used as a electrode, which can achieve the lower resistance ohmic contacts.

通过微晶金刚石在铜基底上的嵌布从而实现了金刚石与铜基底之间的低欧姆接触。

Compared to the samples without using glacial acetic acid, the powders using glacial acetic acid showed big crystallite size and good crystallization.

与未加冰乙酸制备的样品相比，使用冰乙酸制得的粉体晶粒尺寸大，结晶性能好。

The following main results are obtained: The TiO_2 photocatalyst with small crystallite size, high surface area, narrow and uniform pore size distribution, and microporous frameworks could be prepared out by applying MW radiation in the preparation process. The microwave-induced fluorescence technique verified for the first time that microwave enhanced the formation rate of hydroxyl radical, leading to the increase in the photocatalytic efficiency. Compared with the conventional catalyst, TiO_2 prepared by MW dielectric heating owns a higher UV absorption ability, and its optical absorption edge and photovoltaic response are shifted toward the short wavelength region, resulting in increase of photooxidation efficiency. The photocatalytic conversion and the mineralization ratio of acetaldehyde are increased respectively by 30% and 40% over the TiO2 prepared by MW radiation when compared to the TiO2 prepared by the conventional heating. For the MW-assisted photocatalytic reaction over the MW-prepared TiO2, production of hydroxyl radicals is enhanced by 22.5%, and the photocatalytic conversion is accordingly increased by 20%. Similarlly, applying MW also increased the photocatalytic conversion and the mineralization ratio of acetaldehyde over TiO2/Al2O3 sample.

论文得到如下主要结果和结论：(1)微波介电加热TiO_2 溶胶可得到晶粒度小、光催化活性高、比表面积大和孔径分布窄而均一，且微孔发达的TiO_2光催化剂；在溶胶干燥处理过程中微波可使催化剂表面缺陷增加，进而导致光催化反应过程有更多的活性羟基自由基产生；(2)微波制备能显著增强TiO_2 样品的紫外光吸收率，并使其光吸收和光伏响应阈值发生蓝移，从而提高TiO_2的氧化还原能力；(3)与常规加热法所制TiO_2比较，微波法制备的TiO_2对乙醛的光催化降解转化率提高30%，CO_2生成率提高40%以上；(4)与未加微波辐射时相比，发现在光催化反应过程中施加微波，TiO_2 的羟基自由基生成速率提高了22.5%，相应CH_3CHO 光催化降解转化率提高了20%；对Al_2O_3/TiO_2催化剂，CH_3CHO 光催化降解转化率甚至提高了33%，同时CO_2 的生成率也都大幅度提高；(5)微波辐射可改变光催化降解乙醛的产物分布，推断施加微波时乙醛光催化降解按照羟基自由基引发的链式反应机理进行，微波&非热效应&起主要作用。

Bonds become independent of the thickness and the crystallite sizes change negligible that the resistivity and surface energy of carbon films are about 14 Ω·μm and 28 mN/m, respectively.

厚度的变化不会使的键结改变且平均微晶大小变化不大，电阻率和表面能大约在14 Ω·μm和28 mN/m附近。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。