The University of Texas at Dallas, The Alan G MacDiarmid NanoTech Institute, 800 West Campbell Road BE26, Richardson, Texas, 75080, USA; The University of Texas at Dallas, Physics Department, 800 West Campbell Road PHY36, Richardson, Texas, 75080, USA.
Adv Mater. 2014 Nov 26;26(44):7510-5. doi: 10.1002/adma.201402794. Epub 2014 Oct 15.
Magnesium-diboride-coated carbon nanotube arrays are synthesized by templating carbon-nanotube aerogel sheets with boron and then converting the boron to MgB2. The resultant MgB2-CNT sheets are twisted into flexible, light-weight yarns that have a superconducting transition around 37.8 K and critical current and critical field comparable with those of existing MgB2 wires, but have about 20 times lower density than bulk MgB2.
采用硼模板化碳纳米管气凝胶片，然后将硼转化为 MgB2，合成了 MgB2 涂层碳纳米管阵列。所得的 MgB2-CNT 片材被扭曲成灵活、轻便的纱线，其超导转变温度约为 37.8 K，临界电流和临界磁场与现有 MgB2 线材相当，但密度约为块状 MgB2 的 20 倍。
