Effective parameters on diameter of carbon nanotubes by plasma enhanced chemical vapor deposition

The effective parameters on the diameter of carbon nanotubes (CNTs) by plasma enhanced chemical vapor deposition (PECVD) were presented.Among lots of influential parameters,the effects of the catalytic film thickness and the pretreatment plasma power on the growth of CNTs were investigated.The results show that the size of catalytic islands increases by increasing the thickness of catalytic layer,but the density of CNTs decreases.The pretreatment duration time of 30 s is the optimal condition for growing CNTs with about 50 nm in diameter.By increasing the pretreatment plasma power,the diameter of CNTs decreases gradually.However,the diameter of CNTs does not change drastically from 80 to 120 W.The uniformly grown CNTs with the diameter of 50 nm are obtained at the pretreatment plasma power of 100 W.     

T/P91钢在高应力条件下蠕变行为的CDM模型模拟

通过对超临界火电机组用T/P91耐热钢的蠕变数据分析,探讨了T/P91钢在600℃下不同应力范围内的蠕变机制以及服役过程中的蠕变损伤.并使用基于材料物理本质建立的CDM(continuum damage mechanics)模型来模拟高应力范围内T/P91钢的蠕变曲线,将模拟结果与文献中的实验数据进行对比,表明模拟结果是可信的.     

Selective removal technology using chemical etching and excimer assistance in precision recycle of color filter

Color filters are produced using semiconductor production techniques although problems with low yield remain to be addressed. This study presents a new means of selective removal using excimer irradiation, chemical etching, or electrochemical machining on the fifth generation TFT LCDs. The selective removal of microstructure layers from the color filter surface of an optoelectronic flat panel display, as well as complete removal of the ITO thin-films, RGB layer, or resin black matrix (BM) layer from the sub...     

大嘴救援站

Q 车载播放器不认优盘怎么办？为什么爸爸的汽车不认我的优盘呢？国庆的时候出去玩,我把歌曲都复制到优盘上了,但是插进去却一点反应都没有;我还以为优盘被汽车弄坏了,后来插到电脑上,歌都那儿摆着呢!（杨雅冰 广州 读者来信）     

STUDY ON GAP DISTRIBUTION IN MOVABLE SLEEVE-TOOTH DRIVE

ＳＴＵＤＹＯＮＧＡＰＤＩＳＴＲＩＢＵＴＩＯＮＩＮＭＯＶＡＢＬＥＳＬＥＥＶＥＴＯＯＴＨＤＲＩＶＥ①ＬｉＭｉｎｇｓｈａｎＬｉＨｕａｍｉｎＨａｒｂｉｎＩｎｓｔｉｔｕｔｅｏｆＴｅｃｈｎｏｌｏｇｙＺｈｏｕＹｏｕｑｉａｎｇＢｅｉｊｉｎｇＧｒａｄｕａｔｅＳｃｈｏ...     

我是麦霸

夏亚：哟哟哟～又一个梦幻系列,哈哈～看来我们的电饭煲又有新花样可以品尝啦!下面就来看看最新的《妖怪A梦》吧!