论文部分内容阅读
借助自主设计的高活性合金熔体落滴法润湿角测量装置,对纯钛熔体与ZrO2(CaO)陶瓷铸型材料之间的润湿性和界面相互作用进行了研究,并借助SEM和EPMA等分析测试手段,对界面处垂直于界面方向的液/固截面的组织形貌和元素分布进行了分析。结果表明,钛熔体与ZrO2(CaO)在界面处发生了一定程度的化学反应,但界面化学反应不剧烈,钛熔体在ZrO2(CaO)陶瓷材料上不润湿,润湿角为103°,利用液/固界面处化学反应引起的体系总的自由能变化解释了界面化学反应对界面润湿性的影响。
The wettability and interfacial interaction between pure titanium melt and ZrO2 (CaO) ceramic mold material were studied by means of self-designed droplet wetting angle measuring device of highly active alloy melt. With SEM and EPMA and other analytical methods were used to analyze the morphology and elemental distribution of the liquid / solid cross-section at the interface perpendicular to the interface. The results show that there is a certain degree of chemical reaction between titanium melt and ZrO2 (CaO) at the interface, but the interface chemical reaction is not severe. The titanium melt is not wetted on the ZrO2 (CaO) ceramic material and the wetting angle is 103 ° The influence of interfacial chemical reaction on interfacial wettability was explained by the change of the total free energy of the system caused by the chemical reaction at the liquid / solid interface.