Papers by Santoshkumar Biradar
A B S T R A C T In the present study, pure hydroxyapatite (HAp) nano powder was prepared successf... more A B S T R A C T In the present study, pure hydroxyapatite (HAp) nano powder was prepared successfully via microwave irradiation method. To enhance the mechanical properties of pure HAp, La 2 O 3 was taken as an additive. HAp composites were synthesized with addition of different concentrations of La 2 O 3 (0.1, 0.2, 0.3 and 0.5 wt%) by conventional solid state route. The HAp-La 2 O 3 powders were sintered at 1200 °C for 3 h. On the basis of XRD results, formation of HAp-La 2 O 3 was confirmed. The surface morphology of the composite samples was studied by scanning electron microscopy (SEM). Transmission electron microscopy (TEM) confirmed the presence of tiny particles of La 2 O 3 in the HAp matrix with adequate porosity. The mechanical properties of the pure HAp and its composites were determined by universal testing machine (UTM). The 0.5 wt% of HAp-La 2 O 3 sample exhibited the highest density, 2.85 g/cm 3 and mechanical strength ~ 108.89 MPa. The calculated values of Young's modulus, fracture toughness and load bearing capability are 90.75 GPa, 130.06 MJ/m 3 and ~ 3.85 kN respectively. It was observed that the addition of La 2 O 3 significantly improved the mechanical properties of HAp. To see the cytotoxicity effect on HAp-La 2 O 3 composites (0.1 and 0.5 wt%), MTT assay were performed using osteoblast cells.
Bookmarks Related papers MentionsView impact
Here, we report the scalable synthesis and characterization
of low-density, porous, three-dimensi... more Here, we report the scalable synthesis and characterization
of low-density, porous, three-dimensional (3D) solids
consisting of two-dimensional (2D) hexagonal boron nitride (h-BN)
sheets. The structures are synthesized using bottom-up, lowtemperature
(∼300 C), solid-state reaction of melamine and boric
acid giving rise to porous and mechanically stable interconnected
h-BN layers. A layered 3D structure forms due to the formation of
h-BN, and significant improvements in the mechanical properties
were observed over a range of temperatures, compared to graphene
oxide or reduced graphene oxide foams. A theoretical model based
on Density Functional Theory (DFT) is proposed for the formation of h-BN architectures. The material shows excellent, recyclable absorption capacity for oils
and organic solvents.
Bookmarks Related papers MentionsView impact
Uploads
Papers by Santoshkumar Biradar
of low-density, porous, three-dimensional (3D) solids
consisting of two-dimensional (2D) hexagonal boron nitride (h-BN)
sheets. The structures are synthesized using bottom-up, lowtemperature
(∼300 C), solid-state reaction of melamine and boric
acid giving rise to porous and mechanically stable interconnected
h-BN layers. A layered 3D structure forms due to the formation of
h-BN, and significant improvements in the mechanical properties
were observed over a range of temperatures, compared to graphene
oxide or reduced graphene oxide foams. A theoretical model based
on Density Functional Theory (DFT) is proposed for the formation of h-BN architectures. The material shows excellent, recyclable absorption capacity for oils
and organic solvents.
of low-density, porous, three-dimensional (3D) solids
consisting of two-dimensional (2D) hexagonal boron nitride (h-BN)
sheets. The structures are synthesized using bottom-up, lowtemperature
(∼300 C), solid-state reaction of melamine and boric
acid giving rise to porous and mechanically stable interconnected
h-BN layers. A layered 3D structure forms due to the formation of
h-BN, and significant improvements in the mechanical properties
were observed over a range of temperatures, compared to graphene
oxide or reduced graphene oxide foams. A theoretical model based
on Density Functional Theory (DFT) is proposed for the formation of h-BN architectures. The material shows excellent, recyclable absorption capacity for oils
and organic solvents.