查询词典 vanadium oxide

In this subject, we have successfully prepared ordered oxide films on the single metal crystals including aluminum oxide, vanadium oxide, cerium oxide, chromium oxide and magnesium oxide in nano size.

本项目在超高真空中制备了各种纳米有序氧化物薄膜（包括氧化铝、氧化钒、氧化铈、氧化镁和氧化铬）和氮化铈薄膜。

Usually it turns into emerald at the time of chromium oxide or vanadium oxide, while aquamarine is formed due to the coloring of ferrous oxide, it becomes verobieffite due to the existence of magnesium, while heliodor is formed due to the coloring of iron oxide.

在存在氧化铬或氧化钒时通常就成了祖母绿，而海蓝宝石则是由于氧化亚铁着色而成的。成为铯绿柱石是由于镁的存在，而金绿柱石则是因氧化铁着色而成的。

Vanadium oxide thin films are widely used in the field of uncooled IR detecting and imaging for its high temperature coefficient of resistance.

氧化钒薄膜由于具有高电阻温度系数，近年来被广泛应用于非制冷红外探测及红外成像领域。

Uncooled infrared detector; Vanadium oxide films; temperature coefficient of resistance; the finite Element Method; porous silicon

信息科技，无线电电子学，光电子技术、激光技术非制冷红外探测器；氧化钒薄膜；电阻温度系数；有限元法；多孔硅

Vanadium oxide thin films deposited on slide glass substrates are prepared by facing-target magnetron sputtering.The effect of sputtering conditions on temperature coefficient of resistance is analyzed by orthogonal experiment,and the optimum process recipes are achieved,including Ar∶O2=48∶0.4,gas pressure is 2 Pa,substrate temperature is 27 ℃,sputtering power is 180 W.

利用对靶磁控溅射法在玻璃基片上制备VOx薄膜，采用正交实验方法研究了镀膜条件对VOx薄膜电阻温度系数的影响，得到优化的镀膜工艺参数，主要包括Ar∶O2为48∶0.4、工作压力恒定为2 Pa、基底的温度为室温27℃、溅射功率保持在180W，在此基础上，进行不同温度条件的真空退火，得到薄膜TCR在-2.5%~-4.5%范围。

One is low valence vanadium oxide thin films were deposited by direct current facing target magnetron sputtering firstly, and then thermal oxidated; the other is high valence vanadium oxide thin films were deposited by ion beam sputtering, then thermal deoxidated. Vanadium oxide thin films with phase transition were obtained at the lower thermal process temperature 300℃, which is compatible with MEMS technologys. The composition of VO_x thin film fabricated by first method includes mainly VO_2, V2O3 and VO_, the TCR is -2.25%/K, the TCR gradually increases with phase transition temperature decreases. The composition of VO_x thin film fabricated by the second method includes mainly VO_2, V2O5 and V2O3 , and the resulting VO_x thin filmTCR is -3.0%/K. The TCR of phase transition vanadium oxide thin films made by second method is higher than that made by first method for the existance of V2O5 in thin films.

分别采用直流对靶磁控溅射制备低价态氧化钒薄膜再附加热氧化处理的方式，和射频离子束溅射制备高价氧化钒薄膜附加热还原处理的方式获得了具有相变特性的氧化钒薄膜，第一种方式获得相变特性氧化钒薄膜的热处理温度最低为300℃，克服了以往高温条件下热处理不能与MEMS工艺兼容的缺点；相变特性氧化钒薄膜的组分以VO_2为主，含有V2O3和VO_，室温TCR为-2.25%/K；室温电阻温度系数随相变温度的降低逐渐升高；采用第二种方式获得的相变氧化钒薄膜的组分以VO_2为主，含有V2O5和V2O3，室温TCR可达-3.0%/K；分析发现，具有相变特性的氧化钒薄膜中含有V2O5时，室温电阻温度系数明显增大。

The oxide layer is predominantly TiO2, which contains a small amount of suboxides TiO and Ti2O3 between the outmost layer and metallic substrate. The XPS analysis confirms that Al2O3 is located mainly in the outer surface of the modified layers, in which vanadium and vanadium oxide are not detected.

结果表明：随着注入离子能量的增加， Ti6Al4V合金表面改性层的深度明显增加，改性层的外层由一定厚度的TiO2组成，外层与内层基体之间存在Ti2O3和TiO； Al元素在改性层的外层以氧化物形式存在，且该氧化物趋于表面生长；在表面改性层的外层未发现V及其氧化物。

This paper introduced the market development trend of vanadium products(include ferro-vanadium and vanadium oxide).

介绍了钒产品的市场发展趋势，重点从2005年的45万元/t的钒铁历史高价开始分析，到近两年的市场平淡、平稳的原因，并且对从中反射出来的规律进行了总结。

In acidic system, the solubility of vanadium was reduced because of the exisiting of insoluble vanadium oxide.

酸性体系中，固相中含有更不易溶的氧化钒，降低钒盐的溶解度。

The vanadium oxide films were characterized by X-ray diffraction and X-ray photoelectron spectra . It is found that the formation of vanadium oxide films was affected by substrate temperature and annealing time, because high substrate temperature and annealing were favorable to further oxidation.

采用X-射线衍射和X-射线光电子能谱对钒氧化物进行了表征，发现钒氧化物薄膜的形成受衬底温度和退火时间的影响，因为衬底温度以及退火有利于进一步氧化。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。