|
|||||
|
|
| 植物种子模板法制备Al_2O_3泡沫陶瓷的研究 | |
| 引用本文： | 于景媛,李强,唐骥,孙旭东.植物种子模板法制备Al_2O_3泡沫陶瓷的研究[J].铸造,2010,59(3). |
| 作者姓名： | 于景媛 李强 唐骥 孙旭东 |
| 作者单位： | 1. 辽宁工业大学材料与化学工程学院,辽宁锦州,121001;东北大学材料与冶金学院,辽宁沈阳,110004 2. 辽宁工业大学材料与化学工程学院,辽宁锦州,121001 3. 沈阳铸造研究所,辽宁沈阳,110022 4. 东北大学材料与冶金学院,辽宁沈阳,110004 |
| 基金项目： | 国家杰出青年基金，国家自然科学基金 |
| 摘 要： | 将小米种子排列成模板,通过在模板内对Al2O3浆料进行离心成形来制备孔径均匀的Al2O3泡沫陶瓷。观察了浆料固相含量对Al2O3生坯密度均匀性的影响,研究了植物种子特性对Al2O3生坯干燥和焙烧行为的影响,测量烧结产物的密度、收缩率、孔隙率和压缩强度,并通过体式显微镜和扫描电镜观察Al2O3泡沫陶瓷的宏观结构和显微组织。研究结果表明,小米和Al2O3生坯具有较好的收缩匹配性,干燥后可以保持生坯形状完整。在较高的固相含量(50%,体积分数)下,离心时的物质分离现象被抑制,孔壁具有较高的生坯相对密度(63.8%)。1500℃烧结2h后,Al2O3泡沫陶瓷具有致密的孔壁和较高的烧结相对密度(98.9%),其孔隙度为66.5%,抗压强度为5.26MPa。 |
| 关 键 词： | 泡沫陶瓷 植物种子 模板 离心成形 |
Fabrication of Al_2O_3 Foam Ceramic by Plant Seeds Template Method |
|
| YU Jing-yuan,LI Qiang,TANG Ji,SUN Xu-dong.Fabrication of Al_2O_3 Foam Ceramic by Plant Seeds Template Method[J].Foundry,2010,59(3). | |
| Authors: | YU Jing-yuan LI Qiang TANG Ji SUN Xu-dong |
| Affiliation: | YU Jing-yuan1,3,LI Qiang1,TANG Ji2,SUN Xu-dong3 (1. College ofMaterials &ChemicalEngineering,Liaoning UniversityofTechnology,Jinzhou 121001,Liaoning,China,2. Shenyang Research Institute ofFoundry,Shenyang 110022,3. SchoolofMaterial&Metallurgy,Northeastern University,Shenyang 110004,China) |
| Abstract: | Open-cell Al2O3 ceramic foams with uniform cell size were fabricated by centrifugal slip casting using the plant seeds as the templates. The effect of solid contents of slurries on green density uniformity of Al2O3 compacts was analyzed and the effect of characteristic of plant seeds on drying and presintering behavior of Al2O3 green compact was also studied. The sintering density, shrinkage, porosity and compressive strength of the final products were measured. Macrostructure and microstructure of sintered... |
| Keywords: | Al_2O_3 Al_2O_3 foam ceramic plant seeds template centrifugal slip casting |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |