- 更多网络例句与晶内的相关的网络例句 [注:此内容来源于网络,仅供参考]
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X-ray diffraction is one of the most common and efficient ways to measure a superlattice structure. This dissertation displays the detail results for characterization of Ge〓Si〓/Si superlattices by x-ray diffraction (including x-ray small angle diffraction and double crystal diffraction). It was found, when the growth temperature is lower, the intensities of xray small angle diffraction peaks are modulated by a periodical function, which indicates that both sets of interfaces of the superlattice is highly flat; when the growth temperature is higher, the diffraction peak intensities are simply decay with the increase of diffraction vector, which indicates that one set of interfaces is highly flat but another is not; when the growth temperature is very high, the diffraction peaks are reduced more rapidly, which indicates that both sets of interfaces are not ideal.
本文详细介绍了用X-射线衍射(包括X-射线小角衍射和双晶衍射)方法对Ge〓Si〓/Si超晶格结构特性测试的结果,尤其是发现,当Ge〓Si〓/Si超晶格的生长温度较低时,X-射线小角衍射谱峰的强度随着衍射波矢的增加而周期性调制,表明超晶格的两套界面都十分平整;当生长温度较高时,Ge〓Si〓Si超晶格的X-射线小角衍射谱峰的强度随着衍射波矢呈简单的衰减变化,对应于超晶格内有一套界面不平整的情况;当生长温度进一步提高时,X-射线小角衍射峰明显减少,表明超晶格内两套界面都不理想。
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The results show that the interplanar crystal spacing and lattice index of Al-rich α phase reduce gradually with increasing pressure. When the pressure reaches from common pressure to 5 GPa , Al-rich α phase lies on the (200) and (220) crystal faces, the interplanar crystal spacing are reduced by 1.07% and 1.15%. From common pressure to 3 GPa , the microstructure of ZA27 alloy changes from thick dendrites to fine dendrites, and finally to granular. According to the effect of solute diffusion coefficient under super high pressure and the calculation of Scherrer formula, it can be seen that the crystal organization is fine within the bounds of certain pressure. This conclusion is consistent with the experiment results.
结果表明:随着压力的增加,晶面间距和晶格常数都逐渐减小,当压力达到5 GPa时,富铝α相在(200)与(220)晶面处,晶面间距较常压力时的分别减小1.07%和1.15%;在常压至3 GPa范围内,晶粒由粗大的树枝晶→细小的树枝晶→粒状、椭球状枝晶转变的趋势,通过压力对合金凝固溶质扩散系数的影响结合Scherrer公式计算分析其组织变化原因,得出在一定的压力范围内,随着压力的增大,晶粒尺寸逐渐变小,这一结论与实验结果相符。
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Thealmost single phase can be obtained in RFe1.95 under suitablegrowth conditions.Any deviation from these growth conditions andcomposition results in the apparence of intergrain rare earth phaseor intragrain RFe3 or WSP deposition.
工艺研究发现,在合适的提拉条件下,RFe1.95的成份可以得到近似单相的结构,成份的偏离将导致晶体中出现晶间稀土相或晶内的RFe3或WSP淀积。
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The complex style of zoning texture in garnet is mainly originated by Fe-Mg exchange reaction on it s interface with Bt or other mafic minerals and intercrystal diffusion at the same time.
石榴石中复杂的环带结构样式主要通过它与黑云母等相邻矿物界面上发生的Fe-Mg交换反应和向晶内的扩散作用来实现。
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At first, mineral composition and distributing of impurities in andalusite grains were studied by SEM and EDS. The results showed that main mineral impurities were biotite, ilmenite, clay species, the wall rock conglutinated at brim of andalusite and impurities in the chiastolitic cruciform pattern were easily removed, but the small impurities in andalusite grain were hardly removed.
首先,利用SEM和EDS分析了红柱石矿的矿物组成和杂质分布,结果显示这种红柱石矿所含的杂质矿物主要是黑云母、钛铁矿和黏土矿物等,其中分布在红柱石颗粒边缘的围岩和空晶石内的黑十字容易去除,而分布在晶内的细粒杂质则不易去除。
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Results of EBSD show that most of the reversed austenite in the steel treated by QT distribute along the grain boundary, but in the steel treated by two--phase region heat treatment the austenites distribute uniformly along all kinds of boundaries, especially also along the lath martensite boundary in the grain, so the cryogenic toughness can be also improved even the amount of austenitic is lower than that in the steel treated by QT process.
EBSD结果则表明:经两相区处理,回转奥氏体不仅在晶界和板条束界形成,也在晶内的板条界上形成,因此即便在其含量低于淬火+回火处理的条件下, 9Ni钢的低温韧性也有明显提高,证明回转奥氏体的分布也是影响9Ni钢低温韧性的一个主要因素。
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Grain boundary slidings happen in this alloy at the creep temperature of 200 ℃ and the deformation of this alloy is coordinated by intragranular slip and grain boundary sliding.
结果表明:在125~200 ℃蠕变温度下,当蠕变寿命接近100 h时,2024铝合金的蠕变应力随着温度的升高明显下降;与125 ℃相比,150 ℃时合金的蠕变应力下降9.3%,在175 ℃时合金的蠕变应力下降30.3%;当蠕变温度为200 ℃时,该合金的蠕变应力下降幅度达到45.8%;在125~175 ℃下,合金在蠕变过程中的变形机制主要为位错在晶内的滑移;在200℃时,合金晶界开始发生滑移,合金变形由晶界滑移与位错在晶内的滑移协调完成;在合金蠕变断面上存在大量微孔,随着蠕变温度的升高,微孔的尺寸明显变大,当微孔尺寸超过3 μm时,微孔对合金的断裂机制有显著影响;在125和150 ℃下,合金的蠕变断口呈现韧窝型穿晶断裂特征;在175和200 ℃下,合金的蠕变断口呈现沿晶断裂特征。
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Refining grain behavior of the heat affected zone of E36 high strength low alloy steel was studied, when E36 steel was welded by three wires submerged arc welding with 110 kJ/cm large heat input .
大热输入焊接时,氧硫复合物诱导热影响区的晶内铁素体形核,并促进晶内铁素体的感生形核,晶内铁素体及其感生晶内铁素体使热影响区粗晶区的晶粒细化,确保焊接热影响区粗晶区的强度与韧性不降低。
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The results show that the growth rate of tetrapod ZnO is controlled by spiral growth and its crystallization is via VLS model. The condensation of tiny zinc droplets in zinc vapor is the key factor of the formation of tetrapod ZnO. The growth steps are formed on the terminated faces as zinc diffuses outwards and the elongation of whiskers continues until zinc inside the droplets is depleted. VS crystallization, which has little effect on the elongation growth, takes place on side faces of the whiskers and consequently makes the whiskers radius increase.
结果表明: T-ZnO晶须的结晶作用是气-液-固方式,晶须生长受螺旋生长机理控制;锌蒸气中产生凝聚生长的锌液滴是制备T-ZnO晶须的关键,锌从液滴内向外扩散在晶须的端面产生生长台阶,随着液滴内的原子向外不断扩散,针体部分就不断地伸长生长,当液滴内的原子全部消耗尽时,晶须便不再发生轴向生长;气-固方式的作用主要是促进晶须棱面生长而使晶须变粗,对轴向生长几乎没有影响。
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Microscopic characteristics of cladded crystal fiber are analyzed by X-ray diffraction, Laue X-ray diffraction and scanning electron microscopy, it is found that magnesium-ion indiffusion does not affect the single crystal structure and the domain structure of the magnesium diffused crystal fiber. It is found for the first time that MgO-rich layer in the magnesium diffused LiNbO〓 surface layer exhibits the crystal structure of an unknown compound from the Li-Mg-Nb-O ternary system and MgNb〓O〓. It is proposed for the first time that this unknown compound and MgNb〓O〓 in MgO-rich layer are the real sources of magnesium-ion indiffusion LiNbO〓. Their appearance indicate that MgNb〓O〓 is in the surface layer of MgO-rich layer, the unknown compound is in the subsurface layer and beneath where the MgNb〓O〓 is located, and these compounds have obviously preferred orientation.
通过镁离子内扩散法,首次在国内实现了具有阶跃和抛物折射率分布的c轴LiNbO〓单晶光纤和a轴Nd:MgO:LiNbO〓单晶光纤的芯—包层波导结构,为我国在该项目的研究填补了空白;建立了晶纤损耗的测量系统,提出了利用单模石英光纤作为晶纤入射光耦合器的思想;通过对晶纤损耗的测量,得到了包层晶纤比未包层晶纤损耗降低约14倍的好结果,并实现了低次模传输:对经镁离子内扩散实现包层后的晶纤的微观特性,利用X射线衍射,劳厄照相和扫描电镜表征发现,晶纤并不因镁离子的内扩散而影响其单晶结构和镁的扩散层畴的变化。
- 更多网络解释与晶内的相关的网络解释 [注:此内容来源于网络,仅供参考]
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glide twin:滑移双晶
[简介]机械双晶(mechanical twin)又称滑移双晶(glide twin)、形变双晶(deformation twin). 晶体形成后受到应力的作用,使晶体内的部分晶格沿着面网一定方向发生均匀的滑移变形所导致的双晶. 一般都成聚片双晶. 例如,
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microcrystal:微晶
[淀粉晶体不同于糖或盐的晶体,是一些在淀粉聚合物大分子的小区域内形成的微晶(microcrystal). ]水对于这些微晶的形成是必不可少的,淀粉会从面筋中吸收所需要的水分子. 面筋失去水之后就会从橡胶状变成一种坚硬的状态(也就是所谓的玻璃状),
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nucleation:晶核形成
他们指出:"最为人所熟知的晶核形成(nucleation)的实例就是在云层中播种人造雨,与冯.内格特的故事可说如出一辙. "我1965年就认识冯.内格特了,当时我为>(Paris Review)访问过他. 听加德赛克提及'冰九',又读了柯毅和兰斯柏瑞的论文后,
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photoluminescence:光激发光
自从多孔矽在1990年被发现能发光后,科学家对於矽奈米结构的光激发光(photoluminescence)起源一直未有定论. 最近英国兰开斯特(Lancaster)大学的Manus Hayne与欧洲的研究人员透过实验推断,发光主要源於奈米微晶内的缺陷,
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subcrustal:地壳下的
subcrust 地壳内层 | subcrustal 地壳下的 | subcrystalline 亚晶态的
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acicular:针状
质附近分别形成针状(acicular)和块状(idiomorphs)铁素体形成晶内针状(块状)铁素体的目的在于使相变后的材料无需热加工和再结晶就能获得小的晶粒尺寸业经指出在晶内杂质界面形核的机制分别为(a)新相与杂质形成低能界面以取代原先的高能母相/杂质界面b杂质的形核或长大导致局部区域化学成分变化以利于新相的生成(c)杂质和母相
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hematoidin:橙色血晶
发生于组织内的出血,量大时形成血肿(hematoma),如脑血肿、皮下血肿等;量少时仅镜下始能查觉,在组织内有多少不等的红细胞或含铁血黄素、橙色血晶(hematoidin)内出血可发生于体内任何部位,血液积聚于体腔内者称体腔积血,如腹腔积血、心包积血;
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intercrystalline:晶间的
intercrystalline rupture 晶间断裂 | intercrystalline 晶间的 | intercrystalline 晶间的结晶内的
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intercrystalline:晶间的结晶内的
intercrystalline 晶间的 | intercrystalline 晶间的结晶内的 | intercycle cooler 循环中间冷却器
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-Quartz,Rutilated:髮晶
产地:代表产地:巴西地区均发现有 发晶 矿物,发晶(Quartz Rutilated) 化学式:Sio2 晶系: 六方晶系 硬度:7 比重:2.65 折射率:1.54-1.55 名称: 发晶--发晶其实就是包含了不同种类针状矿石内包物的天然水晶,这些排列组合不同的毛发针状矿物质分布在在水晶的内部,