CO2对油气管材的腐蚀规律及预测防护

综述了油气管材的CO2腐蚀机理及影响因素，并对两个腐蚀速率预测模型进行了比较，分析评价了各种常用防腐技术的特点，指出了防腐技术确定原则，同时讨论了油气管材CO2腐蚀的国内外研究水平和趋势.     

掺碳锗硅合金最新研究进展

ＳｉＧｅＣ三元合金近几年来受到人们的广泛关注，碳的加入为Ｓｉ－Ｇｅ系统在能带和应变工程上提供了更大的灵活性。本文对碳加入锗硅材料中后应变的缓解及碳对合金能带结构的影响进行了概述，并对其机理做了总结。     

Welding TiB_2 Ceramies and Metai Mo with Combustion Reaction Technology

Combustion reaction welding, one promising method to weld ceramies and metals, was used to weld TiB2 and Mo. The results showed that the reacted products through combustion reaction were TiB2 and MoB when the Mo contents in reactants were 20 wt pct and 40 wt pct while there was Mo besides MoB and TiB2 when there were 60 wt pct and 80 wt pct Mo in reactants. Diffusion of elements occurred at the interfaces of the two substrates. The interfaces between the reacted and the two substrates were indistinct after being welded. The welding temperature strongly affected properties of the samples. The value of bending strength of the sample with 80 wt pct Mo in reactant welded at 1500℃ was the highest, 368.52 MPa. The highest value of shear strength among all the samples was that of the one with 40 wt pct Mo in reactant vvelded at 1500℃, 50.97 MPa.     

TiO2 在Al2 O3 -SiO2 系耐火材料中的作用

阐述了TiO2在Al2O3-SiO2系耐火材料,特别是高铝矾土中的分布和存在方式,并通过分析Al2O3-SiO2系耐火原料的煅烧过程和Al2O3-SiO2系制品的使用过程中TiO2、Al2O3和SiO2三者之间的化学反应,介绍了TiO2对Al2O3-SiO2系耐火材料结构和性能的影响。     

低速常压逆转乳化法制备阳离子分散松香胶

以低速常压逆转乳化法制备了阳离子分散松香胶,对乳化剂的选择和用量、乳化温度、转相温度、搅拌速度、加料速度和稳定剂等进行了研究,测定了松香胶的粒径和电荷,并探讨了阳离子分散松香胶对纸浆Zeta电位的影响.