纳米孪晶金刚石、纳米晶金刚石厘米级块体的硬度、韧性、抗氧化温度数据集

本研究主要面向超硬材料制备与性能研究需求，利用开发的国产六面顶超高压高温大腔体合成技术，成功制备了直径达到10mm的纳米孪晶金刚石和纳米晶金刚石致密块体材料。合成的块体材料具有表观致密完整的特点，其物理性能满足项目指标的要求。 该数据集主要基于透射电镜和X射线衍射等分析方法，记录了所制备的超硬块体材料的价键结构、晶体结构和微观组织结构，并阐明了微观结构与块体基本物理性能之间的关系。同时，采用维氏硬度仪测定了材料的硬度与断裂韧性，并通过综合热分析仪测定了其热稳定性，为纳米孪晶金刚石及纳米晶金刚石的性能优化提供了数据支持。 数据量约为50 MB。This study targets the research demands for the preparation and performance characterization of ultra-hard materials. Using the domestically-developed cubic high-pressure high-temperature large-volume synthesis technology, we successfully fabricated dense bulk nano-twinned diamond and nanocrystalline diamond materials with a diameter of 10 mm. The as-synthesized bulk materials are apparently dense and intact, and their physical properties meet the project's specified requirements. This dataset records the valence bond structure, crystal structure and microstructure of the as-prepared ultra-hard bulk materials via analytical methods including transmission electron microscopy (TEM) and X-ray diffraction (XRD), and elucidates the correlation between the microstructure and the fundamental physical properties of the bulk materials. In addition, the hardness and fracture toughness of the materials were measured using a Vickers hardness tester, and their thermal stability was determined by a comprehensive thermal analyzer, providing data support for the performance optimization of nano-twinned diamond and nanocrystalline diamond. The total data volume is approximately 50 MB.

搜集汇总

背景与挑战

背景概述

该数据集聚焦于纳米孪晶金刚石和纳米晶金刚石厘米级块体材料，通过高压高温合成技术制备了直径10mm的致密样品。它系统记录了材料的微观结构、硬度、断裂韧性和热稳定性等关键物理性能数据，为超硬材料的性能优化提供了实验支持。数据量约为50 MB，包含25个文件。