SBIR Phase I: High Rate Synthesis of Diamond and Other Superhard Materials

这个小企业创新研究（SBIR）第一阶段项目将进一步开发一个高压/高温设备的原型，该设备将能够在2000-5000C下产生10-30 GPa的压力，体积为mm3。在实现这一目标后，将从高纯度碳熔体中通过控制结晶制备高质量的单晶和多晶金刚石样品并进行评估。这将证实该装置的独特能力。同时制备功能梯度纳米tic /WC/Co和纳米金刚石/WC/Co铁砧材料。这种新型超硬/韧性材料以及高速制造它们的工艺将应用于冲床和模具，拉丝模具，锻造毛坯，钻头，机床等。

This Small Business Innovation Research (SBIR) Phase I project will further develop a prototype high pressure/high temperature apparatus, which will be capable of generating pressures of 10-30 GPa at 2000-5000C in mm3 volumes. Having realized this objective, samples of high quality single crystal and polycrystalline diamond by controlled crystallization from a high purity carbon melt will be prepared and evaluated. This will substantiate the unique capabilities of the apparatus. Concurrently functionally-graded nano-TiC/WC/Co and nano-diamond/WC/Co anvil materials will be prepared.This new class of superhard/tough materials as well as the process to fabricate them at high rates will have applications including punch and die sets, wire drawing dies, forging blanks, drill bits, machine tools for example.