1) threading dislocation
穿透位错
1.
Profile-fitting analyses indicate that the annealed ones have larger full widths at half maximum of (0002) rocking curve and lower densities of screw-type threading dislocations than the as-grown samples.
通过对各个样品的(0002)面摇摆曲线进行线形拟合及分析,发现虽然退火后摇摆曲线的半峰宽变大,但面外倾斜角(tilt)的值却变小,从而螺型穿透位错(TD)密度变小,这与化学腐蚀实验的结果一致。
2.
Even though threading dislocations in GaN epitaxial layers have been demonstrated to be effective nonradiative recombination centers,the CL band edge peak intensity does not decrease as the dislocation density increases.
结果表明,GaN外延层中的穿透位错是材料有效的非辐射复合中心,但GaN的CL带边峰强度并不随位错密度的增加而减少。
2) threading dislocation pairs
穿透位错对
3) threading dislocation density
穿透位错密度
1.
15 arcsec and the threading dislocation density is 107cm-2,which indicates that the thick GaN films have the high quality,and are suitable for free-standing GaN substrates.
15arcsec,穿透位错密度(TDD)为107cm-2,外延生长的GaN厚膜晶体质量较好,可以作为自支撑GaN衬底。
4) misreed
穿错
5) breakthrough
[英]['breɪkθru:] [美]['brek'θru]
穿透
1.
Xenon breakthrough in Activated Carbon Fiber (ACF) beds was investigated.
研究了氙在活性炭纤维吸附床上的穿透特性,采用Boltzmann分布函数理论模拟了穿透曲线,根据Boltzmann函数曲线推导了穿透时间方程,给出了半穿透时间的理论表达式,较好地解释了实验数据。
2.
A series of column tests were conducted to determine the breakthrough characteristics,with effects of various water flow rate(0.
4 g)条件下,考察了DMP在GAC柱中的穿透特性。
3.
89mg/g,respectively,when the initial concentration of the solution was 200mg/L;meanwhile,the breakthrough characteristics of DMP adso.
00mL/min)GAC吸附DMP的穿透特性,Yoon-Nelson模型能很好地拟合DMP在GAC柱中的穿透曲线,根据试验数据和Yoon-Nelson模型计算出穿透参数K′、T和穿透点t1以及平衡点t2。
6) perforation
[英][,pɜ:fə'reɪʃn] [美]['pɝfə'reʃən]
穿透
1.
Penetration and perforation of FRP laminates under normal impact by ogival-nosed projectiles;
卵形弹丸撞击下FRP层合板的侵彻和穿透
2.
The coupling between local dent, perforation and whole bendingdeformaion of thin-wall circluar tube under lateral impact by blunt missile andthe ballistic limit speed of steel tubes filled with high-pressure liquid are in-vestigated.
研究充液薄壁圆管在平头弹体侧向冲击下局部凹陷、穿透及整体弯曲变形的耦合问题及发生穿透的弹道极限速度。
3.
An analysis is presented to model the perforation process of a rigid plastic free free beam with uniform rectangular cross section when it is struck normally by a small size flat nosed cylindrical missile at the middle of its span.
研究了均匀矩形截面自由梁中部在小尺寸、平头、刚性、圆柱形弹体正撞击下的变形及穿透过程。
补充资料:不全位错
不全位错
partial dislocation
不全位错partial disloeation伯格斯矢量不是晶格恒同平移矢量的位错。它是堆垛层错的边界,也即是层错与完整晶体部分的分界线。以fcc晶格为例,最常。二‘。一‘,,,、~,,一一,、,、二加,‘爪1,,,八、~,.I见的是在{111}类型的面上通过操作:①告<112>类型2.“J~阵、“‘,~~曰刁~一~一一’「‘~6、““’~~滑移;②抽去一个{111}层,并使上下两岸复合;③插入一个{111}层。这3种操作均造成层错,此层错的边界即是不全位错。分别称为肖克利不全位错, 1‘,,。、0=~不Lll乙J O负弗兰克不全位错,正弗兰克不全位错,。一告〔“‘〕。一奇〔“‘〕。 不全位错复杂之处在于它必然与层错相联系而存在,所以它的形式和运动均受层错之制约。例如上述肖克利不全位错只能在{111}面上作滑移,而弗兰克不全位错根本不能滑动。除fcc晶体外,在hcp、bcc、金刚石结构及其他许多实际晶体中,不全位错是很常见的。一个全位错可以分解为两个或多个不全位错,其间以层错带相联,通常称为扩展位错。 (杨顺华)
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条