SiC/Ni3Al界面固相反应区的相组成与显微结构
PHASE COMPOSITIONS AND MICROSTRUCTURES OF THE SiC/Ni3Al INTERFACE SOLID STATE REACTION ZONE
摘 要
使用光学显微镜、扫描电子显微镜和能谱仪等对1 000 ℃×5 h加热处理的SiC/Ni3Al界面固相反应区显微结构、相组成以及反应区中元素分布等进行观察、分析和测试。研究表明,SiC/Ni3Al界面固相反应形成Ni2Si、石墨态碳沉积物和Ni5.4AlSi2。SiC/Ni3Al界面固相反应形成两层结构的反应区,其厚度大约是16 μm。其中,靠近SiC侧的反应区由Ni2Si,Ni5.4AlSi2和分布在其中的颗粒状的石墨颗粒构成,而靠近Ni3Al侧的反应区则由Ni2Si和Ni5.4AlSi2构成。
SiC
Ni3Al
固态扩散
Interfacial reaction
SiC
Ni3Al
Solidphase diffusion
Abstract
After the SiC/Ni3Al couple heating at 1 000 ℃ for 5 h,the phase compositions and microstructures of the reaction zone were studied using SEM,XRD and EDS. The results show that the SiC/Ni3Al interface solid state reaction zone is composed of Ni2Si,graphitic carbon precipitates and Ni5.4AlSi2. The reaction zone,about 16 μm in thickness,is consisted of two layers,i.e.,the layer of Ni2Si,Ni5.4AlSi2 and graphitic carbon adjacent to the SiC side and the layer of Ni2Si and Ni5.4AlSi2 adjacent to the Ni3Al side.
中图分类号 TB333
所属栏目 试验与研究
基金项目 安徽省自然科学基金项目(050440704)
收稿日期 2007/7/21
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备注赵学法(1981-),男,在读硕士研究生。
引用该论文: ZHAO Xue-fa,TANG Wen-ming,CAO Ju-fang,GAO Jian-jie,WU Yu-cheng,ZHENG Zhi-xiang. PHASE COMPOSITIONS AND MICROSTRUCTURES OF THE SiC/Ni3Al INTERFACE SOLID STATE REACTION ZONE[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2008, 44(1): 1～3
赵学法,汤文明,曹菊芳,高建杰,吴玉程,郑志祥. SiC/Ni3Al界面固相反应区的相组成与显微结构[J]. 理化检验－物理分册, 2008, 44(1): 1～3
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