高压高温下B_2O_3与Mg和Li_3N的反应  

The Reaction of Li_3N-B_2O_3 and Mg-B_2O_3 under High-Temperation and High-Pressure

作　　者：苏作鹏[1] 张铁臣[1] 杜勇慧[1] 

机构地区：[1]吉林大学超硬材料国家重点实验室,吉林长春130012

出　　处：《高压物理学报》2006年第3期277-280,共4页Chinese Journal of High Pressure Physics

基　　金：国家自然科学基金资助项目(10299040)

摘　　要：通过B2O3与Mg和Li3N分别在不同温度压力条件下的反应,用X射线方法研究了生成物的物相。当采用Mg与B2O3为原料时,其产物是Mg3B2O6;用Li3N与B2O3反应时,产物中除了Li3BO3,还有立方氮化硼(cBN)生成。这表明,当原料中含有相同数量B2O3时,用Mg和Li3N分别作触媒合成立方氮化硼,将得到不同的结果。The reaction of Li3N-B2O3 and Mg-B2O3 under different pressure and temperature has been studied and the phase of the resultant has been analyzed by X-ray diffraction （XRD） method. XRD results show that when the starting material is Mg-B2O3 ,the major production is Mg3B2O6 ;When the starting material is Li3N-B2O3 ,cBN appears in the production. These results indicate that if the content of B2O3 is the same in the starting material,we will get different results,in the case of using Mg and Li3 N as the catalyst respectively.

关 键 词：触媒 B2O3 立方氮化硼 

分 类 号：O521.2[理学—高压高温物理]