title: Nanomechanical characterization of one-step combustion-synthesized Al(4)B(2)O(9) and Al(18)B(4)O(33) nanowires.
abstract: Two kinds of aluminum borate nanowires, Al(4)B(2)O(9) and Al(18)B(4)O(33), were successfully synthesized by a one-step combustion method through control of the Al:B atomic ratio and synthesis temperature. Both nanowires are single crystalline but have distinguishing growth habits. Nanoindentation tests were performed directly on individual nanowires to reveal their mechanical properties. A 70% reduction in elastic modulus was found in Al(18)B(4)O(33) nanowires compared with their bulk counterpart. Al(18)B(4)O(33) nanowires exhibited higher hardness and elastic modulus than Al(4)B(2)O(9) nanowires.
authors.affiliation: Department of Mechanical Engineering, University of South Carolina, 300 Main Street, Columbia, South Carolina 29208, USA.
authors.forename: Xinyong
authors.initials: X
authors.lastname: Tao
authors.forename: Xinnan
authors.initials: X
authors.lastname: Wang
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Li
mesh_terms: D017607:Aluminum Compounds / Q000737:chemistry*; D001881:Borates / Q000737:chemistry*; D003460:Crystallization / Q000379:methods*; D004548:Elasticity; D006244:Hardness; D006358:Hot Temperature; D046911:Macromolecular Substances / Q000737:chemistry; D008422:Materials Testing; D019563:Mechanics; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D043942:Nanotubes / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D013314:Stress, Mechanical; D013499:Surface Properties
chemical_list: D017607:Aluminum Compounds; D001881:Borates; D046911:Macromolecular Substances