期刊
JOURNAL OF MATERIALS SCIENCE
卷 42, 期 11, 页码 3761-3766出版社
SPRINGER
DOI: 10.1007/s10853-006-0425-9
关键词
-
Porous titanium nitride ceramics with a biomorphic microstructure were manufactured at 1,400 degrees C by carbothermal reduction and nitridation of charcoal/titania composites under high concentration nitrogen atmospheres. These composites were prepared from beech-derived charcoal impregnated with titania sol by vacuum/pressure infiltration process. The formation mechanism of TiN was analyzed. The results show that the nitridation is based on gas-solid reaction among TiO (s), N-2 (g), C (s) or CO (g). Under higher nitrogen pressure, the nitridation reaction was complete and porous TiN/C ceramics obtained. The phase composition and microstructure of as-obtained porous TiN/C ceramics were characterized by X-ray diffraction and scanning electron microscopy. Experimental results show that the resultant porous TiN/C ceramic had the same external and internal forms of the original wood that consists of cubic phase TiN.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据