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首页> 外文期刊>International Journal of Refractory Metals & Hard Materials >Consolidation of nanocrystals of detonation diamonds at high-pressure high-temperature sintering
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Consolidation of nanocrystals of detonation diamonds at high-pressure high-temperature sintering

机译：高压高温烧结在高压高温烧结中的爆炸金刚石纳米晶体的固结

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AbstractThe process of consolidation of nanocrystals of detonation nanodiamond (DND) into polycrystalline aggregates during their annealing at high pressures and temperatures (HPHT) was studied. The experiments on HPHT annealing of DND powder were carried out using a high pressure apparatus BARS at 5GPa and 1100, 1200°С. It was established that after HPHT annealing the microhardness of sintered DND samples had a value of 14GPa. It was proposed that HPHT annealing of DNDs leads to deep purification of nanoparticle surface, resulting in formation of strong nanodiamond polycrystalline aggregates. The observed growth can be a result of interaction of neighboring DND nanocrystals along the contact areas that are purified of impurities during the HPHT annealing.Graphical abstractDisplay OmittedHighlights?We studied nanocrystals of detonation nanodiamond (DND) at high pressures and temperatures.?We showed that microhardness of sintered DND samples increased after HPHT annealing.?We proposed a deep purification of nanoparticle surface and interaction of DND nanocrystals.]]>
机译：<！[cdata [ 抽象 在高压和温度下的退火期间将爆炸纳米金刚胺（DND）的纳米晶体纳米晶体的纳米晶体固结过程（HPHT）研究。使用高压装置棒在5GPa和1100，1200°С中进行DND粉末的HPHT退火的实验。正建立，HPHT退火后烧结DND样品的显微硬度具有14GPa的值。提出了DNDS的HPHT退火导致纳米颗粒表面的深纯化，导致形成强纳米金刚胺多晶聚集体。观察到的生长可以是沿着HPHT退火期间纯化杂质纯化的接触区域的相邻DND纳米晶的相互作用的结果。 < CE：抽象XMLNS：CE =“http://www.elsevier.com/xml/common/dtd”xmlns =“http://www.elsevier.com/xml/ja/dtd”id =“ab0010”class = “图形”XML：lang =“en”查看=“全部”> 图形抽象 显示省略 突出显示 ？ 我们研究了塞顿的纳米晶体纳米二胺（DND）高压和温度。 ？ < CE：PARA ID =“P0010”View =“全部”>我们显示HPHT退火后烧结DND样品的微硬度增加。 ？ 我们提出了纳米颗粒表面的深纯化和DND纳米晶体的相互作用。 ]]>

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