Experimental study of the Be-C phase diagram

被引：2

作者：

Liu, Kun ^{[1
,2
]}

Huang, Xiaozhong ^{[1
,3
]}

Fu, Zeyu ^{[1
,3
]}

Wang, Peisheng ^{[4
]}

Du, Yong ^{[5
]}

Yang, Haitang ^{[1
,3
]}

机构：

[1] Cent S Univ, Hunan Key Lab Adv Fibers & Composites, Changsha 410083, Hunan, Peoples R China

[2] Yichun Univ, Coll Phys Sci & Engn Technol, Yichun 336000, Peoples R China

[3] Cent S Univ, Sch Aeronaut & Astronaut, Changsha 410083, Hunan, Peoples R China

[4] Northwestern Univ, Ctr Hierarch Mat Design CHiMaD, 2205 Evanston, Evanston, IL 60208 USA

[5] Cent S Univ, State Key Lab Powder Met, Changsha 410083, Hunan, Peoples R China

来源：

CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY | 2019年 / 64卷

基金：

中国国家自然科学基金;

关键词：

Be-C; Powder metallurgy; Phase diagram; SURFACE-REACTIONS; BERYLLIUM; DEPOSITION;

D O I：

10.1016/j.calphad.2018.10.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

The phase equilibria in the Be-C system were studied via experiment technique. Eleven key alloys were prepared by powder metallurgy method. X-ray diffraction (XRD), scanning electron microscopy (SEM) and differential thermal analysis (DTA) were used to determine phase compositions and phase transition temperatures. For the first time, the entire phase diagram for the Be-C system was obtained in the present work. The present work confirms that there is only one intermediate compound Be 2 C in this system. One allotropic transformation ((beta Be) <--> (alpha Be)) and two eutectic reactions (L <--> (beta Be) + Be2C and L <--> Be2C + (C)) were determined.

引用

页码：11 / 15

页数：5

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