以MgO-Al2O3-Y2O3体系作为烧结助剂,研究添加荆含量对无压烧结氮化硅陶瓷致密化的影响.对MgO、Al2O3、Y2O3三元添加剂进行单纯形格子设计及回归分析.结果表明,复合添加剂的比例对样品致密化及显微结构有着显著的影响.MgO、Al2O3和Y2O3按一优化比例引入到氮化硅陶瓷时可实现最大致密化速率,同时氮化硅大都呈现长柱状β-Si3N4晶粒,具有较大的长径比,显微结构均匀.
参考文献
| [1] | Sampad K. Biswas;Frank L. Riley .Gas Pressure Sintering of Silicon Nitride Powder Coated with Al_2O_3 and TiO_2[J].Journal of the American Ceramic Society,2003(2):212-216. |
| [2] | Gayle S. Painter;Paul F. Becher .Bond Energetics at Intergranular Interfaces in Alumina-Doped Silicon Nitride[J].Journal of the American Ceramic Society,2002(1):65-67. |
| [3] | Hai-Doo Kim;Byung-Dong Han;Dong-Soo Park .Novel Two-Step Sintering Process to Obtain a Bimodal Microstructure in Silicon Nitride[J].Journal of the American Ceramic Society,2002(1):245-252. |
| [4] | Pablos A D;Bermudo J;Osendi M I .Microstructure and mechanical properties of silicon nitride materials fabricated from SHS powders[J].Journal of the American Ceramic Society,2001,84(05):1033. |
| [5] | Yang J-F.;Ohji T. .Influence of Yttria-Alumina Content on Sintering Behavior and Microstructure of Silicon Nitride Ceramics[J].Journal of the American Ceramic Society,2000(8):2094-2096. |
| [6] | Sun E Y;Becher P F;Pluckmett K Ft et al.Microstructural design of silicon nitride with improved fracture toughness:effects of grain shape and size[J].Journal of the American Ceramic Society,1988,81(11):2831. |
| [7] | Knutson-Wedel E M;Falk L K L;Bjorklund H et al.Si3N4 ceramics formed by HIP using different oxide additions:relation between microstructure and properties[J].Journal of Materials Science,1991,26:5575. |
| [8] | Drew P;Simon J P D;Kartik S et al.The microstructures of silicon nitride ceramics during hot-pressed transformations[J].Journal of Materials Science,1974,9:261. |
| [9] | Terwilliger G R et al.Pressureless sintering of SisN4[J].Journal of Materials Science,1975,10:1169. |
| [10] | Draw P et al.The microstructures of silicon nitride ceramics during hot-pressing transformations[J].Journal of Materials Science,1974,9:261. |
| [11] | 杨德.试验设计与分析[M].北京:中国农业出版社,2002:262. |
| [12] | Ordonez S. .The influence of amount and type of additives on α→β Si3N4 transformation[J].Journal of Materials Science,1999(1):147-153. |
| [13] | Lee D D;Kang S J L;Petzow G et al.Effect of α-β(β')phase transition on sintering of silicon nitilde ceramics[J].Journal of the American Ceramic Society,1990,73(03):767. |
| [14] | Lee D D;Kang S J L;Yoon D N .Mechanism of grain growth and α-β'transformation during liquid phase sintering of β'-sialon[J].Journal of the American Ceramic Society,1988,71(09):803. |
| [15] | Mitomo M;Uenosono S .Microstructure development during gas pressure sintering of α-silicon nitride[J].Journal of the American Society of Echocardiography,1992,75(01):103. |
| [16] | Lai K R;Tien T Y J .Kinetics of β-Si3N4 grain growth in Si3N4 ceramics sintered under high nitrogen pressure[J].Journal of the American Ceramic Society,1993,76(01):91. |
| [17] | Sun E Y;Alexander K B;Becher P F et al.β-Si3 N4 whiskers embedded in oxynitride glasses:interfacial microstructure[J].Journal of the American Society of Echocardiography,1996,79(10):2626. |
| [18] | Lang F F et al.Compressive creep of Si3N4/MgO alloys[J].Journal of Materials Science,1980,15:601. |
| [19] | 张金升;张银燕;王美婷.陶瓷材料显微结构与性能[M].北京:化学工业出版社,2007:271. |
| [20] | Tanaka I;Pezzottr G;Matsushita K .Impurities enhanced cavity formation in Si3N4 at elevated temperatures[J].Journal of the American Ceramic Society,1991,74:752. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%