SYNTHESIS OF TITANIUM BORIDE (TIB)(2) NANOCRYSTALLITES BY SOLUTION-PHASE PROCESSING
SYNTHESIS OF TITANIUM BORIDE (TIB)(2) NANOCRYSTALLITES BY SOLUTION-PHASE PROCESSING
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DOI：
10.1557/jmr.1995.2599
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发表时间：
1995-10-01
影响因子：
2.7
通讯作者：
KELTON, KF
中科院分区：
文献类型：
--
作者：
BATES, SE;BUHRO, WE;KELTON, KF
用NaBH4和TiCl4反应制备了TiB2纳米晶。初始液相反应生成非晶态前驱体粉末，900-1100℃下热处理得到5-100 nm的TiB_2微晶。微晶的大小取决于热处理温度和其他工艺参数，微晶的形态与尺寸有关；小于12-15 nm的微晶为立方体，而大于12-15 nm的微晶为六方晶片。该程序提供了克量的可用的最小的TiB_2纳米晶。
Nanocrystalline TiB2 is prepared by reaction of NaBH4 and TiCl4. The initial solution-phase reaction affords an amorphous precursor powder from which 5-100 nm TiB2 crystallites are obtained upon annealing at 900-1100 degrees C. Crystallite sizes depend on the annealing temperature and other processing parameters, Crystallite morphology is size dependent; crystallites smaller than 12-15 nm are cuboidal, whereas crystallites larger than 12-15 nm are hexagonal platelets. The procedure affords gram quantities of the smallest available TiB2 nanocrystallites.