{"title":"Morphological Features of Graphene in Al2O3/G Nanocomposite","authors":"V. V. Stolyarov","doi":"10.1134/S1063774524602880","DOIUrl":null,"url":null,"abstract":"<p>The features of the shape and distribution of graphene flakes in the Al<sub>2</sub>O<sub>3</sub>/G nanocomposite based on corundum nanoceramics obtained using spark plasma sintering technology have been studied. Scanning and transmission electron microscopy have shown the diversity of graphene morphology at the boundaries and inside grains, in the form of agglomerates and bridges, oriented and chaotic lamellar structures. It is shown that the addition of graphene leads to the appearance of shear bands in brittle ceramics, indicating intragranular deformation.</p>","PeriodicalId":527,"journal":{"name":"Crystallography Reports","volume":"69 1 supplement","pages":"S23 - S30"},"PeriodicalIF":0.6000,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Crystallography Reports","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1063774524602880","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CRYSTALLOGRAPHY","Score":null,"Total":0}
引用次数: 0
Abstract
The features of the shape and distribution of graphene flakes in the Al2O3/G nanocomposite based on corundum nanoceramics obtained using spark plasma sintering technology have been studied. Scanning and transmission electron microscopy have shown the diversity of graphene morphology at the boundaries and inside grains, in the form of agglomerates and bridges, oriented and chaotic lamellar structures. It is shown that the addition of graphene leads to the appearance of shear bands in brittle ceramics, indicating intragranular deformation.
期刊介绍:
Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.