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位错密度
The oxide-substrate interface was an active source for dislocation density for vacuum-annealed sample is higher than that for air-annealed sample.
氧化层-基体界面是一个充满活力的位错源,真空炉退火试样的位错密度大于空气炉退火试样。
Alloy grains during deformation along the machine direction stretch, resulting in lattice distortion, increased dislocation density, and secondary grain emergence (grain refinement), thereby increasing the strength of the alloy. After deformation strengthening alloy strength, ductility and ductile-brittle has greatly improved.
英文关键词:Ir single crystal, nano indentation, heterogeneous nucleation, dislocation density
中文关键词: 铱单晶 纳米压痕 异质形核 位错密度
The dislocation density on the sliced c-plane (0001) for both growth directions was studied with X-ray diffraction.
通过应力仪、显微观测和 X 射线衍射等方式对晶片的位错密度等微观缺陷以及晶体结构进行了检测。
After annealing at 1800 â f, since the crystal grains grew up together, dispersoid particle relatively decentralized, dislocation density reduced, resulting in reducing the aspect ratio of the grains, so the room temperature toughness is decrease.
After the dislocation density of GaN crystal is as high as more than 1 x 109/ c m2, is considered to LED through the large current when the cause of luminous efficiency lower.
In the paper, a theoretical analysis is made about the effects of dislocation density on the results of X-ray diffraction, and the relationship of dislocation density and FWHM spread is obtained.
首先从理论上分析了位错密度对X射线衍射结果的影响,得出位错密度和峰宽FWHM展宽的关系。
gallium arsenide single crystal-determination of dislocation density
砷化镓单晶位错密度的测量方法
These results show that reducing the threading dislocation density extends the lifetime of LD.
这些结果表明,螺旋位错密度的降低延长了激光二极管的寿命。
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