反应形成陶瓷复合材料的研究进展

反应形成陶瓷复合材料包括“化学气相渗透、自蔓延高温合成、前驱体浸渍热分解、熔体(或气体)反应渗透、及金属直接氧化技术”这几种工艺。本文分别介绍了这些不同的陶瓷复合材料制备工艺,并对其不同的特点进行了讨论。     

反相微乳液法制备陶瓷彩喷墨水(Ⅰ)

系统地研究了Span80-Tween60/助乳化剂/油/FeCl3反相微乳液体系。通过正交实验,进行方差分析,得出最佳反相微乳液体系。通过均匀实验和全面实验,绘制出体系的拟三元相图,并由相图得出体系的最佳比例。绘制出最大溶水量与温度的曲线,从而确定最佳乳化温度。在最佳温度、最佳比例下,配制出两种墨水,并测定了墨水的表面张力、粘度、电导率和稳定性等性能。     

反相微乳液法制备陶瓷彩喷墨水(Ⅱ)

通过红外光谱仪测定两种墨水的微乳液结构。结果表明,醚氧键中的羟基与H2O分子作用后因形成氢键,而且有强烈的相互作用;正己醇分子在该反相微乳液中水分子作用很弱,而且推断它位于反相微乳液的栅状层;随着微乳液中含水量的增大,水分子O-H伸缩振动峰的强度和频率均发生变化,其吸收强度变大,峰面积增加,频率也向低频方向位移;体系中存在三种水:结合水、捕获水和自由水。并探讨了其反应机理。     

陶瓷部件挤出成型工艺

本文以蜂窝陶瓷生产工艺为例，讨论了陶瓷部件挤出成型过程中，塑性泥料的制备、成型、干燥和烧成等工艺技术和装备问题。     

Effect of granule size and the placement geometry on the efficiency of urea supergranules for wetland rice grown on a permeable soil

In a laboratory experiment 5 cm depth of water was allowed to percolate daily down through a 15 cm thick soil (Typic Ustipsamment) layer. It was observed that leaching losses of urea supergranules (USG)-N could be decreased by about 20% by the placement of four 0.25 g granules at four points instead of one 1 g granule at one point. In field microplots, the placement of approximately 30 granules of 0.30 g size instead of 9 granules of 1.00 g size resulted in reduced leaching of USG-N and, in turn, increased rice yield. In a follow-up field study, the advantage of more frequently placed USG was confirmed. As compared with 1 g USG placed in the usual manner in the center of four rice hills, increasing the density of placement in soil produced 15% more rice grain. Further increase in rice yield could be obtained by increasing the number of USG placed in the soil and decreasing the size of the granule from 1.00 g to 0.70 or 0.35 g. With USG of 0.35 and 0.70 g yields were equal or sometimes even slightly higher than with split application of prilled urea on a heavily percolating, low-CEC, light-textured soil.     

建筑陶瓷的装桢与软件复用技术的应用——三维虚拟展示系统的开发

在软件复用基本理论和技术的基础上，阐述了软件体系结构对软件复用的意义，提出了基于软件体系的软件复用开发方法以及在建筑陶瓷三维虚拟展示系统开发过程中的应用。     

钛酸铝基复合陶瓷的研究

提出了钛酸铝陶瓷研究中存在的问题．论述了颗粒弥散强化陶瓷基复合陶瓷的机理，叙述了第二相颗粒补强钛酸铝基复合陶瓷的国内外研究状况．认为钛酸铝基复合陶瓷是一种很有前途的抗热震冲击且耐高温的材料，并指出了今后的研究方向。     

电子陶瓷材料在多芯片组件(MCM)中的应用

论述了电子陶瓷在多芯片组件（MCM）中的应用、性能要求及优点。重，最叙述低温共烧陶瓷基板技术以及A1N陶瓷基板材料的合成与优异性能。     

UHMWPE瓷机滤板的研制

通过对超高分子量聚乙烯(UHMWPE)特性的分析，指出用其制作瓷机滤板的可能性，并针对UHMWPE的成型加工性能及瓷机滤板的结构特点，确定了压制、烧结成型的工艺方案，阐述了瓷机滤板压制、烧结成型工艺务件，压缩模具结构，模具工作过程，以及成型过程中使用的加热与冷却装置及加热与冷却油路设计，介绍了压制、烧结成型工艺要点和UHMWPE瓷机滤板的应用情况。     

Adhesion Effects of Intermediate Layers on the Densification of Ceramic Powders

In the ceramic technology the first step to produce sintered bodies is the manufacturing of powders which then are densified. The adhesion mechanisms between the single particles and the agglomerates produced from them determine the densification process. Starting from theoretical considerations adhesion mechanisms, such as solid bridge formation, adhesive bonding and glide-promoting effects, are discussed in principle. Subsequently, the effects of surface-active substances on the densification behaviour of clay-ceramics and oxide-ceramic bodies are discussed. Further, the evaluation of the action of additives to the powder mixtures on the microstructure of the compacts, such as porsity and texture, leads to a compaction equation which describes the transition from the powder pile to a densified green body.