采用机械球磨和真空热压相结合的方法,在1.5GPa压力下于400℃热压1h制得纳米晶Mg2Si金属间化合物块体.纳米晶Mg2Si块体晶粒度为30nm,致密度为91.45%.采用原位高温XRD对纳米Mg2Si块体的热稳定性进行了研究.纳米晶Mg2Si块体在700℃、800℃和900℃时晶粒的生长指数分别为6、5和4,说明其具有良好的热稳定性.
参考文献
| [1] | Jose Manuel Munoz-Palos;Ma del Carmen Cristina;Paloma Adeva .Synthesis of Mg_2Si Powder by Mechanical Alloying and Its Consolidation[J].Materials Transactions, JIM,1996(10):1602-1606. |
| [2] | Riffel M;Schilz J .Mechanical alloying of Mg2Si[J].Scripta Metallurgica et Materialia,1995,12:1951. |
| [3] | Lu L;Lia M O;Hoe M L .Influence of kinetic energy on the formation of Mg2Si[J].Nano-Structured Materials,1998,4:551. |
| [4] | Gleiter H .Nanocrystalline materials[J].Progress in Materials Science,1989,33:223. |
| [5] | Suryanarayana C .Nanocrystalline materials[J].International Materials Reviews,1995,40:41. |
| [6] | Lu K .Nanocrystalline metals crystallized from amorphous solids,nanocrystallization,structure,and properties[J].Materials Science and Engineering R:Reports,1996,16:161. |
| [7] | Klug H P.X-ray Diffraction Procedures[M].New York:Jones Wiley & Sons,1962:573. |
| [8] | Iordaehe M C et al.Grain growth kinetics in nanostructured nickel[J].Nanost Mater,1999,11:1343. |
| [9] | Zhou L Z;Guo J T .Grain growth and kinetics for nanocrystalline NiAl[J].Scripta Materialia,1999,40:2. |
| [10] | MaloW T R;Koch C C .Grain growth in nanocrystalline iron prepared by mechanical attrition[J].Acta Materialia,1997,45:2177. |
| [11] | Hutchings M T et al.Neutron scattering investigation of lattice dynamics and thermally induced disorder in the antifluorite Mg2 Si[J].Solid State Ionics,1988,28-30:1208. |
| [12] | Hahn H;Logas J;Averback R S .Sintering characteristics of nanocrystalline TiO2[J].Journal of Materials Research,1990,5:609. |
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%