无机非金属材料制备中机械力化学效应的基础研究及表征技术

文章简明而系统地叙述了机械力化学的兴起、基础研究和表征手段.结合作者的研究, 通过无机非金属原材料制备过程中由机械力引发的一系列物理或物理化学现象及其作用, 解释了产生的机理, 以及对于材料结构与性能所产生的影响.     

Preparation and mechanical properties of Al<Subscript>2</Subscript>O<Subscript>3</Subscript>/Al laminated ceramic matrix composites

Three series of Al2O3/Al laminated ceramic matrix composites,named SPA,SPV and HP,were fabricated by different methods.SPA and SPV were prepared using Al2O3 slices and Al slurry via screen printing and subsequent heat treatment in air or vacuum.HP samples were made by hot pressing the layered stack of Al foils and Al2O3 slices.SEM and XRD were applied to analyze the microstructure and the interlayer crystal phase.The bending strength,fracture toughness and fracture work of the samples made by the three methods were measured and compared.The results show that the composites have much better toughness and higher fracture work than the Al2O3 slice.Among the samples made by the three methods,the samples made by hot pressing have the optimum mechanical performance.The displacement-load curves and fracture mechanism were analyzed.     

机械力化学效应在无机非金属材料制备中的应用研究

叙述了无机非金属材料制备过程中由机械力引发的一系列物理或物理化学现象及其作用,以及当前材料研究中涉及到的微米、纳米材料制备中机械力化学的作用与影响.结合作者本人的研究, 解释了机械力化学效应作为一种由机械力引发的物理化学现象, 可以用于进行原材料的科学设计和合理改性.     

陶瓷增韧技术的研究进展

介绍了颗粒增韧、纤维和晶须增韧、相变增韧、复合增韧、自增韧、纳米增韧等陶瓷增韧技术的研究现状以及相应的增韧机理，探讨了今后陶瓷增韧技术的发展方向。     

ZX9.4钢锭模设计及使用

攀钢炼钢厂已有的ZX9.85和ZX8.55两种上大下小镇静钢钢锭模,1984年保温帽由砌砖改用绝热板后,锭重分别为9.5t和8.3t。在使用中发现,ZX9.85钢锭模由于高宽比(H/D)和锥度(i)设计偏小,钢锭呈矮胖状,内部偏析、疏松较为严重,锭尾有盘带状夹杂物聚集,难以生产高质量的钢种。以前曾用该钢