通过改变氧化铝粉体中纳米铝粉含量,研究了纳米铝粉对烧结氧化铝晶粒形态的影响.当铝粉质量分数为0.01%和0.1%时,氧化铝的晶粒分布具有双峰结构,部分晶粒为长柱状和板状晶粒,而当铝粉质量分数为0.5%时,整个氧化铝晶粒都呈现均匀、等轴结构,其与氧化镁的作用相类似.
The microstructural evolution during sintering of Al_2O_3 was investigated to determine the role of Al nanoparticles. Compared with specimens without Al, a few platelike Al_2O_3 grains were observed with the addition of 0.01% and 0.1% (mass fraction) Al nanoparticles. When Al content was increased to 0.5%, a fine, equiaxed and homogeneous grained microstructure was obtained. This effect of Al on the microstructure of the sintered Al_2O_3 is similar to that of MgO.
参考文献
| [1] | Coble R L .Transparent Alumina and Method of Preparation[P].U S,Pat No 3 026 210,1962. |
| [2] | Kim Byung-Ki et al.[J].Journal of the American Ceramic Society,2003,86(04):634. |
| [3] | Bennison S J.Ceramic Transactions[M].Westerville,OH:Ceramic Society,1990:13. |
| [4] | 杨为佑,谢志鹏,苗赫濯.异向生长晶粒增韧氧化铝陶瓷的研究进展[J].无机材料学报,2003(05):961-972. |
| [5] | Greskovich Charles et al.[J].Journal of the American Ceramic Society,2007,90(05):1375. |
| [6] | Greskovich C et al.[J].Journal of the American Ceramic Society,2001,84(02):420. |
| [7] | Park C.W.;Yoon D.Y. .Effects of SiO_2, CaO_2, and MgO Additions on the Grain Growth of Alumina[J].Journal of the American Ceramic Society,2000(10):2605-2609. |
| [8] | Sone T W et al.[J].Journal of the American Ceramic Society,2001,84(06):1386. |
| [9] | Hong S H et al.[J].Journal of the American Ceramic Society,2001,84(07):1597. |
| [10] | Wook J et al.[J].Journal of the American Ceramic Society,2006,89(08):2369. |
| [11] | 彭榕,周和平,宁晓山,徐伟,林渊博.Al/Al2O3陶瓷接合基板的制备及性能研究[J].无机材料学报,2002(04):731-736. |
| [12] | Wook J et al.[J].Journal of the American Ceramic Society,2007,90(07):2293. |
| [13] | Zhang Shenghong et al.[J].Journal of the American Ceramic Society,2005,88(01):202. |
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