【摘要】 首次利用化学炉 ,在抛物线飞行飞机提供的失重条件下进行了AlN复合材料制备的初步研究 .研究结果显示 ,飞行条件下制得的样品与地面样品的显微结构存在差异 ,这种差异与重力水平有关 .相对于地面实验样品 ,失重条件有利于制备组分和结构均匀的AlN复合材料 .更多还原

【Abstract】 The first and preliminary investigation of AlN composites thermal\|treated under normal gravity and microgravity conditions by using chemical ovens was conducted during aircraft parabolic flights. The results indicated that, different microstructures in the samples are associated with gravity level during parabolic flight, and microgravity condition allows the synthesis of AlN borosilicate glass composite with improved microstructure, as compared with that under the terrestrial condition. It is favorable to produce AlN borosilicate glass composites with a relatively uniform distribution of composition and structure. Finally, the use of chemical oven and the potential of material synthesis under microgravity condition are appreciated.更多还原