| 氮化硅陶瓷超塑拉深成形规律研究 |
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| 引用本文： | 王守玉,骆俊廷.氮化硅陶瓷超塑拉深成形规律研究[J].塑性工程学报,2006,13(5):106-109. |
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| 作者姓名： | 王守玉 骆俊廷 |
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| 作者单位： | 1. 河北农业大学,海洋学院,秦皇岛,066003
2. 燕山大学,亚稳材料制备技术与科学国家重点实验室,秦皇岛,066004 |
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| 摘 要： | 以非晶氮化硅纳米陶瓷粉体为初始材料,以纳米氧化钇和氧化铝为助剂液相烧结获得超塑性陶瓷块体材料,在1550℃的低温条件下,实现氮化硅陶瓷的超塑性成形。利用描述超塑性材料的Backofen方程,建立陶瓷超塑性成形的刚粘塑性有限元模型,并与实验研究相结合,研究氮化硅陶瓷在不同条件下超塑性拉深成形过程中,成形体径向和厚度方向的尺寸变化,得到了氮化硅陶瓷超塑性拉深成形过程厚度和径向尺寸改变的基本规律。
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| 关 键 词： | 拉深 氮化硅 超塑成形 有限元模拟 |
| 文章编号： | 1007-2012（2006）05-0106-04 |
| 收稿时间： | 2006-01-09 |
| 修稿时间： | 2006-09-08 |
Investigation of silicon nitride's superplastic deep-drawing forming rules |
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| WANG Shou-yu,LUO Jun-ting.Investigation of silicon nitride''''s superplastic deep-drawing forming rules[J].Journal of Plasticity Engineering,2006,13(5):106-109. |
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| Authors: | WANG Shou-yu LUO Jun-ting |
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| Affiliation: | 1.Ocean College of Hebei Agricultural University, Qinhuangdao 066003 China;2.State Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004 China |
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| Abstract: | The Si_3N_4 ceramic bodies were sintered by liquid phase sintering(LPS) with the amorphous nano-sized silicon nitride powders.The nano-sized Al_2O_3 and Y_2O_3 powders are added as additives.The superplastic deep drawing are proceeded in a low temperature of 1550℃ in nitrogen.The rigid-plastic FEM model was established by Backofen equation.The forming rules were derived in the axial and radial dimension changing for superplastic deep-drawing forming of Si_3N_4 ceramic by experiment investigate and FEM. |
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| Keywords: | deep-drawing silicon nitride superplastic forming FEM |
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