晶格缺陷
- 名lattice defect;crystal defect
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提出削弱基体材料耐老化性的不是TiO2的光催化作用,而是TiO2晶格缺陷引起的光化学活性。
Opinions were put forward that impaired the aging behavior of the basis material was not the photocatalytic effect but the photochemical activity from lattice defect of TiO_2 .
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对CH4反应x为0.2.这是由于随x的增大,催化剂晶格缺陷增多,晶格氧的化学势增大而造成的。
It is considered that the above behaviour is caused by the enhancement of lattice defect and the chemical potential of lattice oxygen in the catalysts with the increase of x .
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扫描电子显微镜观察到了Ni在Si表面的沉积和由此产生的晶格缺陷。
Distribution of Ni in Si is U-shaped . Precipitation of Ni and lattice defects were observed .
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CVD金刚石厚膜晶格缺陷分析
Lattice defect analysis of CVD diamond thick films
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高分辨电子显微镜研究α-Si3N4晶格缺陷
Lattice defects in α - si_3n_4 studied by HREM
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并用离子交换法合成出高纯度、高比表面积、高晶格缺陷的纳米CeO2晶体。
The nano-CeO_2 crystal with high pureness , high specific surface area , and high crystal lattice defects was produced by ions exchange method .
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用ESR成像方法探测了石英玻璃杜瓦受紫外光辐照后产生的局部晶格缺陷&F心的空间分布情况。
The spatial distributions of paramagnetic defect centers F centers in quartz Dewar after UV-irradiation were detected by ESR imaging method .
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XRD证实高活性Ni(OH)2有晶格缺陷。IR证实了Ni(OH)2的同质多晶现象。
XRD showed that there was crystal defect in high activity Ni ( OH ) 2 . The pleomorphic phenomenon of Ni ( OH ) 2 had been proved by IR .
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用XPS对二氧化铈进行分析发现,二氧化铈粒径越小,晶格缺陷越大。
Using XPS for analysis of the ceira , it showed that the smaller of the particle size leads to a larger crystal lattice defect .
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分离得到的PAA为结晶聚合物,结构单元呈周期性排列,但存在一定的晶格缺陷。
The finely grounded PAA was crystal polymer and its structure unit arranged periodicity with a little crystal lattice disfigurement .
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晶体的X射线衍射表明,Mg:Mn:LiNbO3晶体的晶格缺陷在掺镁量没有达到阈值浓度时,随掺镁量的增大而逐渐增大,当掺镁量达到阈值浓度时又有下降的趋势;
XRD results show shat , with the increase of Mg doping amount , the lattice defect of Mg : Mn : LiNbO_3 crystals are increase and then decrease when Mg doping amount is up to the threshold .
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在DSC曲线上,结晶了的PEEK的低温冷结晶峰消失,而代之出现双熔融峰,双峰是由PEEK的晶格缺陷产生的。
On the DSC curve , the low temperature cold-crystallization peak of crystallized PEEK disappeared , instead double melting peaks can be observed , which are caused by crystal defect of PEEK .
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通过建立合理的晶格缺陷模型,成功地解释了所有的实验结果,并确定Cr,Mg共掺Al2O3晶体红外波段宽吸收带属于八面体格位中的Cr4+离子。
Through establishing a structure defect model , we successfully interpreted all the experiment results and confirmed that the extremely broad infrared absorption band belonged to Cr ~ 4 + , which should occupy the octahedral sites in Al_2O_3 .
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研究表明Ni(OH)2晶格缺陷和晶体结构无序化导致X射线衍射(XRD)谱线宽化,具有XRD谱线宽化特别是(101)谱线宽化特征的镍正极有较高的电化学活性。
The results show that there is a close relationship between the broading of X ray diffraction for line and defects in crystal structure . Nickel electrodes with broading of XRD lines especially for ( 101 ) exhibit a high electrochemical activity .
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A1N陶瓷中的晶格缺陷
Lattice defects in AIN ceramics
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这是由于在退火过程中,随着退火温度的升高,有更多的Mn参与MnAs相的形成,使得以替位受主形式存在的Mn减少,并且晶格缺陷得到恢复所致。
These changes in electrical properties are explained by a decrease in the number of Mn acceptors because of the forming of MnAs phase and the resuming of lattice defects during annealing .
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认为该谱是由NTP自由基和晶格缺陷中的陷落电子两部分谱线迭加而成。
It is considered that the signal intensity of the system resulted from the superposition of signal intensity of NTP radicals and free electrons trapped in the lattice defects .
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SEM和TEM结果表明,生长出来的碳纳米管为典型的多壁碳纳米管,长度和直径均匀,排列整齐并垂直于基底,生长速率大于5μm/min,晶格缺陷少。
The SEM and TEM analysis results of the CNT samples showed that as-grown CNT were typical multilayered ones with few defects , aligned and straight , and uniform in diameter and length . The growth rate of CNT was more than 5 μ m / min.
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此外,纳米材料由于具有大的比表面积,高密度表面晶格缺陷和高表面能等特性适合作高活性催化材料,纳米Ni-Al合金的制备和应用涉及到大量的纳米理论和技术问题。
In addition , when the catalysts dimensions are reduced to nano scales , they will show unique catalytic characteristics due to the high density of crystal lattice defects , the large surface area and the high surface energy accordingly .
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高压高温处理条件下钻石中晶格缺陷的演化与呈色
Evolution And Colouration of Lattice Defects in Diamonds at High Pressure and High Temperature
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藉由外加磁场的改变,我们观察到了二维相变化以及晶格缺陷的现象。
By controlling external magnetic field , we explore phenomena of phase transition and defect dynamics .
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透射电子显微镜分析结果显示,生长的碳纳米管表现典型的多壁碳纳米管结构特征,并且晶格缺陷非常少。
Transmission electron microscope Images of CNTs indicate typical multi-walled CNTs lattice structure with few defects .
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四川平武富碱型绿柱石晶体的晶格缺陷与生长机制
Crystal defect and growth mechanism of alkali rich beryl crystal from pingwu , sichuan , chian
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固体氦中的晶格缺陷
Lattice defects in solid helium
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氧化温度低于400℃下的抗氧化能力随碲含量的增加略有降低,这与晶格缺陷增多有关。
When the temperature was below 400 ℃, the oxidization resistance decreased with the increase of lithium content .
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铌酸锂晶体的很多物理特征与其本身的组分和晶格缺陷有着密切的关系。
Many important physical properties of lithium niobate crystal strongly depend on the composition and lattice defects inside the crystal .
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证实晶格缺陷的形成与演化共同制约了钻石的呈色和发光。
The formation and evolution of the lattice defects are proved to restrain the colouring and luminescence of the diamond .
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掺杂氧化铈对钼性能的影响碱土金属氧化物掺杂氧化铈基电解质材料中的晶格缺陷
Effect of CeO_2 on Mechanical Performance of Molybdenum Alloys Crystal Defect Behaviors in CeO2-based Electrolyte Doped with Alkaline Earth Oxides
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并且同一试样的晶格缺陷从氧化态到生长态再到还原态,逐渐增大。
For the same specimen , the lattice defect is increase with the treatments from oxidization to as grown to reduction .
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注入表面形成的晶格缺陷逐渐减少。在850℃+15s退火处理的样品中发现了第二相形成的衍射峰。
One diffraction peak of the secondary phase was found in the XRD spectrum of sample annealing at 850 ℃ for 15s .