Trusova E A, Titov D D, Kirichenko A N, Shelekhov E V, Trutnev N S, Afzal A M, Perezhogin I A
Baikov Institute of Metallurgy and Materials Science RAS, 49 Leninsky pr. Moscow 119334 Russia
Technological Institute for Superhard and Novel Carbon Materials 7a Tsentralnaya street, Troitsk Moscow 142190 Russia.
Nanoscale Adv. 2019 Dec 17;2(1):182-189. doi: 10.1039/c9na00624a. eCollection 2020 Jan 22.
Nanostructured composite particles of nano- and submicron sizes were synthesized by a combination of sol-gel and sonochemical techniques. Their graphene content was 0.8-0.9 wt%. These layered particles consisted of graphene sheets in which zirconia nanocrystals were discretely incorporated. The synthesized powders were characterized using XRD, TEM, HRTEM, diffusion aerosol spectrometry and elemental analysis. A comparison of the compressibility modulus, limit values of linear section deformation and compressibility factor shows that the compressibility of the composite is difficult to achieve compared to that of pure zirconia, apparently, due to the low elasticity of graphene sheets.
通过溶胶 - 凝胶法和超声化学技术相结合合成了纳米和亚微米尺寸的纳米结构复合颗粒。它们的石墨烯含量为0.8 - 0.9 wt%。这些层状颗粒由石墨烯片组成，其中氧化锆纳米晶体离散地掺入其中。使用X射线衍射（XRD）、透射电子显微镜（TEM）、高分辨率透射电子显微镜（HRTEM）、扩散气溶胶光谱法和元素分析对合成的粉末进行了表征。压缩模量、线性截面变形极限值和压缩系数的比较表明，与纯氧化锆相比，复合材料的压缩性难以实现，显然是由于石墨烯片的低弹性。
