材料期刊网，材料期刊，材料类期刊，材料期刊投稿

Specific Energy Consumption Analysis Model and Its Application in Typical Steel Manufacturing Process

SUN Wenqiang , CAI Jiuju , DU Tao , et al

Theoretical minimum and actual specific energy consumptions (SEC) of typical manufacturing process (SMP) were studied. Firstly, a process division of a typical SMP in question was conducted with the theory of SEC analysis. Then, an exergy analysis model of a subsystem consisting of several parallel processes and a SEC analysis model of SMP were developed. And finally, based on the analysis models, the SEC of SMP was analyzed by means of the statistical significance. The results show that the SEC of typical SMP is comprised of the theoretical minimum SEC and the additional SEC derived from the irreversibility; and the SMP has a theoretical minimum SEC of 0.230 ton c.e. (coal equivalent) per ton steel and an additional SEC of 0.659 ton c.e. per ton steel, which account for 25.88% and 74.12% of the actual SEC, respectively.

关键词: steel manufacturing process;theoretical minimum specific energy consumption;additional specific energy consumption;actual specific energy consumption;specific energy consumption analysis;exergy analysis

Multi-Period Optimal Distribution Model of Energy Medium and Its Application

ZHANG Qi , TI Wei , CAI Jiu-ju , DU Tao , WANG Ai-hua

钢铁研究学报(英文版)

A mathematical model of optimal energy medium distribution in steelmaking process is formulated. In this model, three kinds of important energy mediums including byproduct gases, steam and electricity are considered, and the objective function accounts for both the change of generation and consumption of the byproduct gases and the demand of low (or middle) pressure steam and electricity for each period to maximize the benefit of products cost and minimize the consumption of energy. The results indicate that the optimal distribution scheme of byproduct gases, middle pressure steam, low pressure steam and electricity is achieved and case study shows that 6% of operation cost is reduced by using the proposed model comparing with the previous model.

关键词: energy medium , byproduct gas , multi-period , optimal distribution , energy saving

CSD-La3TaO7薄膜外延生长行为

王耀 , 李成山 , 于泽铭 , 冯建情 , 金利华 , 王辉 , 张平祥

稀有金属

研究CSD技术制备La3TaO7 (LTO)缓冲层过程中前驱液的热分解行为以及热处理工艺对薄膜取向生长的影响,通过选取恰当的LTO前驱液以及快速升温热处理的方法最终获得了良好c轴织构的LTO薄膜.

关键词: 涂层导体 , 缓冲层 , 化学溶液沉积

DU-Ti合金表面N+Ti+多层Ti/TiN复合膜的制备与耐蚀性

严东旭 , 刘天伟 , 龙重 , 白彬 , 张鹏程 , 黄河 , 郎定木 , 王晓红 , 朱建国

材料保护

采用单一的表面改性技术难以提高贫铀钛合金(Du-Ti)的耐蚀性能.采用等离子体浸没离子注入技术依次在Du-Ti合金表面注入N和Ti,再利用非平衡脉冲磁控溅射技术制备多层Ti/,TiN,研究了膜层的形貌、结构及耐蚀性能.结果表明:膜层厚约3μm,呈柱状结构,致密,但存在一些微缺陷,膜基结合紧密;膜层出现面心立方结构的TiN和密排六方的Ti,在DU-Ti合金界面形成了少量的UO2,没有铀的氮化物;膜层耐蚀性能较基体得到较大提高;微观缺陷是TiN层局部片状脱落的主要原因,外层TiN出现片状脱落后.注入层和内层Ti/TiN多层膜仍能有效保护基体.

关键词: 等离子体浸没离子注入 , 非平衡磁控溅射 , 复合膜 , DU-Ti合金 , 电化学腐蚀 , 耐蚀性

Bi3+,Eu3+,Tb3+掺杂Lu3TaO7的发光性能研究

刘文鹏 , 张庆礼 , 杨华军 , 周鹏宇 , 孙敦陆 , 高进云 , 谷长江 , 罗建乔 , 王迪 , 殷绍唐

量子电子学报 doi:10.3969/j.issn.1007-5461.2011.02.018

采用固相反应法制备了Bi3+、Eu3+、Tb3+掺杂的Lu3TaO7.测量了样品的X射线衍射谱、激发和发射光谱及荧光衰减曲线.三种离子掺杂的Lu3TaO7均呈现出强的荧光发射,其中Bi3+具有峰位在431 nm处的一强发射宽带,衰减寿命为16.8μs,Eu3+、Tb3+则表现出稀土离子的特征锐发射峰,衰减寿命分别为1.26 ms和1.20 ms.因此,它们均是具有潜在应用前景的重闪烁体材料.

关键词: 材料 , 闪烁体 , Lu3TaO7 , 发光

Du Pont推出全新应用的聚烯烃弹性体

合成材料老化与应用

关键词:

一种基于锡锑氧化物的透明PN结及整流特性

季振国 , 周荣福 , 毛启楠 , 霍丽娟 , 曹虹

无机材料学报 doi:10.3724/SP.J.1077.2009.09217

利用反应磁控溅射法制备了半导体锡锑氧化物薄膜 (TAO). 根据霍尔效应测试结果，当Sn/Sb 原子比处于0.22~0.33范围内时，TAO薄膜是p型导电的，在此范围之外，TAO薄膜是n型导电的. 光学带隙测量结果表明,不同Sn/Sb比的TAO薄膜的禁带宽度基本相同(~3.9eV).构造了一个全透明的PN结，其中n区为Sn/Sb原子比为0.5的TAO薄膜， p区为Sn/Sb原子比为0.33的TAO薄膜.n区TAO的电极用铟锡氧化物（ITO），p区TAO的电极用Cu薄膜.实验结果表明，由于两种导电类型的TAO薄膜具有相同的禁带宽度，上述透明PN结构具有典型的准同质PN结的整流特性.

关键词: 透明半导体薄膜 , antimony-tin oxide , PN junction

一种基于锡锑氧化物的透明PN结及整流特性

季振国 , 周荣福 , 毛启楠 , 霍丽娟 , 曹虹

无机材料学报 doi:10.3724/SP.J.1077.2009.09217

利用反应磁控溅射法制备了半导体锡锑氧化物薄膜 (TAO). 根据霍尔效应测试结果,当Sn/Sb 原子比处于0.22~0.33范围内时,TAO薄膜是p型导电的,在此范围之外,TAO薄膜是n型导电的. 光学带隙测量结果表明,不同Sn/Sb比的TAO薄膜的禁带宽度基本相同(～3.9eV).构造了一个全透明的PN结,其中n区为Sn/Sb原子比为0.5的TAO薄膜, p区为Sn/Sb原子比为0.33的TAO薄膜.n区TAO的电极用铟锡氧化物(ITO),p区TAO的电极用Cu薄膜.实验结果表明,由于两种导电类型的TAO薄膜具有相同的禁带宽度,上述透明PN结构具有典型的准同质PN结的整流特性.

关键词: 透明半导体薄膜 , 锡锑氧化物 , PN结