微细阵列孔的铸造法制备及表征

发布时间：2018-03-25 23:33

本文选题：微细孔　切入点：阵列孔　出处：《沈阳工业大学学报》2015年06期

【摘要】：为了获得大深径比的微细阵列孔,以铝作为基体金属并采用铸造法制备了微细阵列孔.根据预期阵列孔的结构,编排并固定预制体的孔芯.将预制体放置在自制金属型中进行浇注,使熔融金属铝液围绕于预制体的孔芯,待铝液凝固后抽出孔芯得到微细阵列孔.利用激光共聚焦显微镜测量微细阵列孔的孔壁粗糙度,并计算微细阵列孔的形状因子.结果表明,由铸造法制备的微细阵列孔的分布十分规律密集,孔径大小基本一致.微细阵列孔的形状非常趋近于圆形,孔壁十分光滑,且深径比很大.
[Abstract]:In order to obtain microarray holes with large aspect ratio, aluminum was used as matrix metal and microarray holes were prepared by casting method. Arrange and fix the pore core of the preform. Place the preform in a self-made metal mold for pouring, so that molten metal liquid aluminum surrounds the pore core of the preform, The microarray holes are obtained by pulling out the core after solidification. The roughness of the pore wall of the microarray holes is measured by laser confocal microscope and the shape factor of the microarray holes is calculated. The results show that, The distribution of microarray holes prepared by casting method is very regular and dense, and the pore size is basically the same. The shape of the microarray holes is very close to the circle, the hole wall is very smooth, and the aspect ratio is very large.
【作者单位】：沈阳工业大学材料科学与工程学院;哈尔滨工业大学材料科学与工程学院;
【基金】：辽宁省教育厅重点实验室基金资助项目(LZ2014012)
【分类号】：TG146.21

【相似文献】