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中文摘要：
以化学计量配比的Ti, B元素为原料, 在高温高压条件下成功制备出颗粒均匀、致密性大于99% 的二硼化钛（TiB2）体材料. 物性测试结果表明： TiB2的维氏硬度高达39.6 GPa （接近超硬材料的40 GPa）; 并呈现出金属导电特性, 电阻率在10-8 Ω.m 的数量级（接近TiB2单晶样品值）. TiB2的高硬度与金属特性, 可能与该方法制备的TiB2体材料中均匀的细小晶粒尺寸有关. 该方法为制备功能陶瓷材料提供了新的思路.
英文摘要：
Bulk titanium borides （TiB2） have been successfully synthesized from the stoichiometric boron and titanium powders at high pressure and high temperature （HPHT）. The density of TiB2 is higher than 99%. The Vicker＇s hardness of TiB2 as synthesized is 39.6 GPa which is near to result of the supehard materials. While TiB2 show good metallic characters with the resistivity, 10-8 Ωm, which is near to the value of the single crystal of TiB2. The enhanced properties of TiB2 as synthesized may be attributed to the higher density and uniform crystal size.
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