Progress in Q-carbon and related materials with extraordinary properties
Progress in Q-carbon and related materials with extraordinary properties
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DOI：
10.1080/21663831.2018.1458753
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发表时间：
2018-01-01
影响因子：
8.3
通讯作者：
Sachan, Ritesh
中科院分区：
文献类型：
--
作者：
Narayan, Jagdish;Bhaumik, Anagh;Sachan, Ritesh
本文综述了我们有关Q -碳、Q - BN以及碳直接转化为金刚石和六方氮化硼（h - BN）直接转化为立方氮化硼（c - BN）的相关研究。这些材料的合成与加工是通过纳秒激光熔化非晶碳和纳米晶h - BN并随后淬火来实现的。根据过冷程度的不同，熔融碳（或h - BN）可转化为Q -碳（或Q - BN）或金刚石（或c - BN）。这里主要关注这些材料的卓越性能，包括硬度大于金刚石、铁磁性、p型和n型掺杂、氮空位（NV）纳米金刚石、硼掺杂Q -碳中的高温超导性、增强的场发射、超硬复合涂层以及未来的应用。[图表]影响声明
这项研究代表了在常温常压空气中碳直接转化为金刚石及其非凡性能方面的一项根本性突破。
This paper summarizes our research related to Q-carbon and Q-BN and direct conversion of carbon into diamond and h-BN into c-BN. Synthesis and processing of these materials are accomplished by nanosecond laser melting and subsequent quenching of amorphous carbon and nanocrystalline h-BN. Depending upon the degree of undercooling, molten carbon (or h-BN) can be converted into Q-carbon (or Q-BN) or diamond (or c-BN). The primary focus here is on the outstanding properties of these materials, including hardness greater than diamond, ferromagnetism, p- and n-type doping, NV nanodiamonds, high-temperature superconductivity in B-doped Q-carbon, enhanced field emission, superhard composite coatings, and future applications.[GRAPHICS]IMPACT STATEMENTThis research represents a fundamental breakthrough in the direct conversion of carbon into diamond at ambient temperatures and pressures in the air and their extraordinary properties.