硅酸钠炉渣中氧化铁活度的测定

参照高炉铁水预处理的条件，对硅酸钠炉渣中氧化铁的活度系数作了测定。采用的实验方法是使炉渣在受控ＣＯ２／ＣＯ０氛下与含微量铁的Ｃｕ－Ｆｅ合金平衡。研究结果表明，在１３５０℃时， 氧化铁的活度系数γＦｅＯ的值在大部份碱度范围内大于１，并在Ｎａ２Ｏ／ＳｉＯ２摩尔比约为０．８时达到最大。     

石墨还原CaO－SiO_2－Al_2O_3－FeO熔渣过程中泡沫化行为

石墨还原ＣａＯ－ＳｉＯ_２－Ａｌ_２Ｏ_３－ＦｅＯ熔渣过程中泡沫化行为黄宗泽，肖兴国，肖泽强，ＳＤ辛格在１４４０～１５３０Ｃ，通过Ｘ射线装置观测了石墨活原ＣａＯ－ＳＩＯ；－ＡＩ。Ｏ。－ＦｅＯ＄渣（ＣａＯ）／ＳＩＯ。一０·７５～１·５）中ＦｅＯ反应过程中?..     

PZT／SiO_2／Si界面的XPS分析

采用ＳＯＬ－ＧＥＬ工艺在ＳｉＯ２／Ｓｉ衬底上制备了铁电薄膜，对ＰＺＴ／ＳｉＯ２／Ｓｉ结构进行了ＸＰＳ分析，结果表明，在ＰＺＴ铁电薄膜和硅衬底之间加ＳｉＯ２使Ｆ／Ｓ界面得到了改善．     

TPR法对Co-Fe-Cu/SiO_2催化剂中各组分之间相互作用的研究

本文采用程序升温还原法（ＴＰＲ）对Ｃｏ与Ｈ２合成低碳烃催化剂Ｃｏ－Ｆｅ－Ｃｕ／ＳｉＯ２各组分之间的相互作用进行了研究,结果表明钴与铁的混合使钴、铁的氧化物的还原温度明显降低,少量铜的掺入使其还原温度进一步降低,正是由于Ｃｏ、Ｆｅ、Ｃｕ之间的强相互作用才使得Ｃｏ－Ｆｅ－Ｃｕ／ＳｉＯ２对ＣＯ与Ｈ２反应生成低碳烃显示出很高的催化活性和选择性     

MFS和MFOS结构的C－V特性研究

采用ＳＯＬ－ＧＥＬ方法分别在Ｓｉ和含有ＳｉＯ２的衬底上制备出ＰＺＴ铁电薄膜，并获得了ＭＦＳ和ＭＦＯＳ结构．利用ＭＯＳ结构常用的Ｃ－Ｖ特性分析方法，对ＭＦＳ和ＭＦＯＳ结构进行了高频Ｃ－Ｖ特性测试分析，研究了Ｆ／（Ｏ）Ｓ的界面特性，结果表明，金属／ＰＺＴ／ＳｉＯ２／Ｓｉ的ＭＦＯＳ结构具有较低的界面态，可实现极化存储，并可望制成铁电场效应晶体管．     

Fe3Al／TiC复合材料的耐高温冲蚀性能

研究了Ｆｅ３Ａｌ／ＴｉＣ复合材料在高浓度ＳＯ２和ＳｉＯ２细颗粒气流中的耐高温冲蚀磨损性能,并与Ｆｅ３Ａｌ基合金和钴基高温合金在同等实验条件下进行比较,结果表明：Ｆｅ３Ａｌ／ＴｉＣ复合材料的高温抗冲蚀性优于２种对比材料。ＳＥＭ分析显示：Ｆｅ３Ａｌ／ＴｉＣ复合材料的冲蚀表面形貌以薄片屑形成机制为主。     

含FeO熔渣还原过程起泡行为研究

在１４４０－１５３０ ℃，通过Ｘ射线装置观测了石墨还原ＣａＯ－ＳｉＯ２－Ａｌ２Ｏ３－ＦｅＯ熔渣（ＣａＯ／ＳｉＯ２＝０．７５－１．５）中ＦｅＯ反应过程中渣的起泡行为，测定了熔渣的起泡指数和起泡率等参数。结果表明，熔渣的起泡率随熔渣中ＦｅＯ的初己考叭墼疃鹊纳叨龃蟆?     

甘肃永登碱性熔岩中残留单斜辉石特征

对甘肃永登石灰沟－带分布的变白榴石响岩，辉石白榴岩，暗色粗面岩中的残留单斜辉石的产出条件，光学性质，化学成分进行了研究，确定上述各类岩石中残留的单斜辉石属于含钛普通辉石。化学成分主要是由ＣａＭｇＳｉ２Ｏ６约为８０．００％，ＣａＦｅＳｉ２Ｏ６约为１３．９６％，ＮａＦｅＳｉ２Ｏ６约为３％，ＣａＴｉＡｌ２Ｏ６约为３％，同时还含有少量的ＣａＡｌＳｉＡｌＯ６分子及Ｍｎ等组分。ＴｉＯ２的含量在０．６５％～１．     

PZT／SiO2／Si界面的XPS分析

采用ＳＯＬ－ＧＥＬ工艺在ＳｉＯ２／Ｓｉ衬底上制备了铁电薄膜，对ＰＺＴ／ＳｉＯ２／Ｓｉ结构进行了ＸＰＳ分析，结果表明，在ＰＺＴ铁电薄膜和硅衬底之间加ＳｉＯ２使Ｆ／Ｓ界面得到了改善。     

SiO_2／SiO界面能级位移光电发射的研究

芯层光电子能谱（ＸＰＳ）和价带光电子能谱（ＵＰＳ）是研究不同半导体之间界面价带落差的有效手段，由ＳｉＯ２／ＳｉＯ界面处的芯层和价带光电子能谱，我们确定ＳｉＯ２／ＳｉＯ界面能级落差为２．０ｅＶ，覆盖引起能带位移为０．９ｅＶ，同时发现ＳｉＯ和ＳｉＯ２中的化学组分是较复杂的。     

Fe-Mn/SiO_2催化剂的制备及其催化甲苯燃烧性能

以SiO2为载体,采用浸渍法分别制备了Fe-Mn(物质的量比为1∶1)质量分数为5%~35%的Fe-Mn/SiO2催化剂,以及Fe-Mn质量分数为30%,Fe-Mn物质的量比(x=0.1~0.9)的Fex-Mn1-x/SiO2催化剂,在常压固定床反应器上评价了这些催化剂对甲苯催化燃烧的反应性能,用X-射线衍射、氢气程序升温还原等分析手段对催化剂的结构进行了研究。结果表明Fe、Mn物质的量比为1∶1、Fe-Mn质量分数为30%的Fe-Mn/SiO2催化剂具有最好的活性,在280℃的反应条件下甲苯可完全催化燃烧。在Fe-Mn/SiO2催化剂体系中,Fe-Mn质量分数小于30%时检测不到Fe或Mn的物相。Fe-Mn质量分数大于30%时只检测到了Fe2O3物相;在Fex-Mn1-x/SiO2催化剂体系中,x的值在0.5~0.9之间时只检测到了Fe2O3物相,x的值在0.1~0.3之间时只检测到了Mn2O3物相。催化剂的氧化还原性能与Fe-Mn的质量分数和Fe、Mn的物质的量比有很大的关系,这些可能都影响着催化剂的性能。     

Al2 O3和二元碱度对炼钢炉渣中磷酸盐富集机理的综合影响

以六元CaO-SiO2-FeO-P2 O5-Fe2 O3-Al2 O3炼钢渣系为研究对象,结合热力学计算和实验检测,分析( Al2 O3)和二元碱度B综合变化对该六元渣系中磷酸盐富集行为的影响.结果表明：炼钢炉渣中生成游离C2 S含量对磷酸盐富集相nC2 S-C3 P内的( P2 O5)至关重要.该渣系中增加SiO2会降低总的C2 S生成量,增加Al2 O3可促进钙铝黄长石C2 AS相生成,降低游离C2 S ( f-C2 S)的量,进而影响磷酸盐的富集.六元CaO-SiO2-FeO-P2 O5-Fe2 O3-Al2 O3炼钢炉渣获得较好磷酸盐富集程度,渣中二元碱度B和Al2O3含量需满足的耦合关系为：(%Al2O3)=-27.70+21.62B,(Al2O3)<20.0%,B>1.3.     

中性条件下MSU-1介孔分子筛及其杂原子衍生物的合成与表征

以月桂醇聚氧乙烯醚为模板剂，在中性条件下成功地合成了具有MSU-1结构的介孔分子筛及其Fe、Cu、Ti、Co、Cr和Zr等杂原子取代的衍生物.考察了合成条件（模板剂浓度、反应温度和NaF浓度）对MSU-1分子筛结构的影响，并用XRD、SEM和FT-IR等手段对合成的样品进行了表征.     

转炉渣中磷的微观结构行为

为了设计合理的转炉渣成分以达到满意的脱磷效果，根据转炉炼钢过程熔渣成分的变化范围，采用拉曼光谱测定了CaO-SiO₂-Fe_○xO-P₂O₅系熔渣的熔体结构，并解析了磷在熔渣中的存在形式及转变行为.结果表明，熔渣中磷主要以桥氧数为0，1，2的磷氧四面体结构单元存在，并可进入硅氧四面体和铁氧四面体形成Si—O—P和Fe—O—P键.随着渣中CaO和FeO总量的增加，熔渣中聚合程度较低的Q⁰(P)，Q¹(P)和Q⁰(Si)，Q¹(Si)摩尔分数升高，而聚合程度较高的Q²(P)和Q²(Si)，Q³(Si)摩尔分数降低.另外，Fe—O—P和Si—O—P键的含量也逐渐降低，当碱度为2.83时，Si—O—P和Fe—O—P键消失.     

Effect of the CaO/SiO2 mass ratio and FeO content on the viscosity of CaO–SiO2–"FeO"–12wt%ZnO–3wt%Al2O3 slags

An effective process for recycling lead from hazardous waste cathode ray tubes (CRTs) funnel glass through traditional lead smelting has been presented previously. The viscous behavior of the molten high lead slag, which is affected by the addition of funnel glass, plays a critical role in determining the production efficiency. Therefore, the viscosities of the CaO–SiO2–"FeO"–12wt%ZnO–3wt%Al2O3 slags were measured in the current study using the rotating spindle method. The slag viscosity decreases as the CaO/SiO2 mass ratio is in-creased from 0.8 to 1.2 and also as the FeO content is increased from 8wt% to 20wt%. The breaking temperature of the slag is lowered sub-stantially by the addition of FeO, whereas the influence of the CaO/SiO2 mass ratio on the breaking temperature is complex. The structural analysis of quenched slags using Fourier transform infrared (FTIR) spectroscopy and Raman spectroscopy reveals that the silicate network structure is depolymerized with increasing CaO/SiO2 mass ratio or increasing FeO content. The [FeO6]-octahedra in the slag melt increase as the CaO/SiO2 mass ratio or the FeO content increases. This increase can further decrease the degree of polymerization (DOP) of the slag. Furthermore, the activation energy for viscous flow decreases both with increasing CaO/SiO2 mass ratio and increasing FeO content.     

贫化电炉节能高效计算机数据采集与处理系统研制及应用

以节能、降低渣含钴为中心，将控制理论与热工理论有机结合，开发了贫化电炉计算机数据采集与处理系统的数学模型，将ＦＯＲＴＲＡＮ与ＦＯＸＢＡＳＥ＋两种计算机语言结合起来，完成了整个数据采集与处理系统软件的编制与屏幕功能的设计，该系统投入金川贫化电炉生产，取得了良好的经济效益和社会效益，大大增强了生产管理的科学性     

New insights into the effects of silicon content on the oxidation process in silicon-containing steels

Simultaneous thermal analysis (STA) was used to investigate the effects of silicon content on the oxidation kinetics of silicon- containing steels under an atmosphere and heating procedures similar to those used in industrial reheating furnaces for the production of hot-rolled strips. Our results show that when the heating temperature was greater than the melting point of Fe₂SiO₄, the oxidation rates of steels with different silicon contents were the same; the total mass gain decreased with increasing silicon content, whereas it increased with increasing oxygen content. The oxidation rates for steels with different silicon contents were constant with respect to time under isothermal conditions. In addition, the starting oxidation temperature, the intense oxidation temperature, and the finishing oxidation temperature increased with increasing silicon content; the intense oxidation temperature had no correlation with the melting of Fe₂SiO₄. Moreover, the silicon distributed in two forms: as Fe₂SiO₄ at the interface between the innermost layer of oxide scale and the iron matrix, and as particles containing silicon in grains and grain boundaries in the iron matrix.     

用锌焙砂中浸渣制备锰锌铁氧体共沉淀粉

以湿法炼锌过程中的中浸渣和挥发窑渣为原料,经浸出、还原、净化和共沉淀等过程制备软磁铁氧体所需的锰锌铁氧体共沉淀粉料.确定浸出工艺条件、硫化沉淀和氟化沉淀工艺条件.实验结果表明,中浸渣的最佳浸出工艺条件如下:温度为90～95℃,搅拌速度为200 r/min,硫酸用量为理论用量的1.15倍,时间为2.5 h,液固比为4:1;制得的共沉淀粉料中铁、锰和锌的平均含量比例与理论配方较符合,尤其是共沉淀粉料中各杂质元素含量很低,各杂质成分含量分别为Ca 0.018 0%,Mg 0.008 5%,Si 0.003 8%,A1 0.007 8%,Ni 0.017 0%,Pb0.001 2%,Cu 0.003 3%,Cr 0.002 8%及Cd 0.000 2%,达到锰锌软磁铁氧体材料对粉料的要求.     

Effect of the CaO/SiO2 mass ratio and FeO content on the viscosity of CaO-SiO2-“FeO”-12wt%ZnO-3wt%Al2O3 slags

An effective process for recycling lead from hazardous waste cathode ray tubes (CRTs) funnel glass through traditional lead smelting has been presented previously. The viscous behavior of the molten high lead slag, which is affected by the addition of funnel glass, plays a critical role in determining the production efficiency. Therefore, the viscosities of the CaO-SiO₂-"FeO"-12wt%ZnO-3wt%Al₂O₃ slags were measured in the current study using the rotating spindle method. The slag viscosity decreases as the CaO/SiO₂ mass ratio is increased from 0.8 to 1.2 and also as the FeO content is increased from 8wt% to 20wt%. The breaking temperature of the slag is lowered substantially by the addition of FeO, whereas the influence of the CaO/SiO₂ mass ratio on the breaking temperature is complex. The structural analysis of quenched slags using Fourier transform infrared (FTIR) spectroscopy and Raman spectroscopy reveals that the silicate network structure is depolymerized with increasing CaO/SiO₂ mass ratio or increasing FeO content. The[FeO₆]-octahedra in the slag melt increase as the CaO/SiO₂ mass ratio or the FeO content increases. This increase can further decrease the degree of polymerization (DOP) of the slag. Furthermore, the activation energy for viscous flow decreases both with increasing CaO/SiO₂ mass ratio and increasing FeO content.     

张家界岩性特征对峰林地貌形成的影响研究

岩性标本偏光镜鉴定及X荧光光谱分析发现,张家界石英砂岩SiO2含量在79.40%-97.20%,生物碎屑灰岩SiO2含量在1.90%-4.90%之间.SiO2含量高的石英砂岩通常比SiO2含量低的灰岩抗风化侵蚀能力强.石英砂岩中的CaO含量在180ppm-0.12%之间,而生物灰岩CaO含量90.90%-94.40%,含CaO多的岩体要比含CaO少的岩体更易被流水溶蚀和侵蚀,这也是石英砂岩和生物碎屑灰岩差异风化的原因所在.铁质石英砂岩多呈砂状结构,组成物质多为由单晶石英颗粒构成,胶结物多占15%-70%.上述岩性特征使得位于峰林上部的铁质石英砂岩不易受风化影响而易于长期保存,由此形成峰柱上部的铁帽,例如武士驯马和仙女献花等处的峰林景观.而中下部砂岩因抗风化能力差,加之垂直节理发育而易于形成崩塌和被流水搬运的峰林沟谷景观,以上是张家界峰林地貌形成的主要原因.