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Characterization Of Ferrogels Prepared Ferrite Nano P

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Presented at SPIE smart structure \'09 conference, San Diego,CA

Presented at SPIE smart structure \'09 conference, San Diego,CA

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  • 1. Characterization of ferrogels prepared using  -Fe 2 O 3 and Fe 3 O 4 nanoparticles Presented by Kamlesh J. Suthar Muralidhar K. Ghantasala, Derrick C. Mancini* and Jan Ilavsky @ Department of Mechanical and Aeronautical Engineering, Western Michigan University, Kalamazoo, MI *Center for Nanoscale Materials @ Advanced Photon Source Argonne National Laboratory, Argonne, IL SPIE Conference on Smart Structures 2009, San Diego
  • 2. Outline SPIE Conference on Smart Structures 2009, San Diego
  • 3. Introduction
    • Polymeric gel with magnetic nanoparticles
    • Magneto-elastic materials that produce strain on an applied magnetic field, E = 0.23 MPa
    • Primarily describes the methods used in the synthesis for different ferrogel samples with different compositional variables
    • The magnetite particles (10-50 nm, Fe 3 O 4 , Fe 2 O 3 ) were distributed
    • Characterization : Ultra Small Angle X-ray Scattering ( USAXS ) and SEM techniques are used to analyze the particle size and distribution within the gel.
    • The quality of the ferrogel is mainly determined by the uniformity of distribution and the extent of agglomeration .
    SPIE Conference on Smart Structures 2009, San Diego
  • 4. Synthesis of NIPAAm Hydrogel
    • Polymer N-Isopropylacrylamide hydrogel can be prepared by copolymerization with other hydrophilic or hydrophobic polymers
    • Cross-linked with bis-acrylamide by a redox polymerization using ammonium per sulfate (APS) as free radical initiator and N,N,N’,N’ tetramethylethylenedia-mine (TEMED) as pair of redox reagent
    • Ferrogel is made by mixing NIPAM+ BIS+ Nano-particles followed by prolonged sonication and adding reagent and initiator
    SPIE Conference on Smart Structures 2009, San Diego
  • 5. Nanoparticles: Fe 3 O 4 and  -Fe 2 O 3 SPIE Conference on Smart Structures 2009, San Diego
  • 6. Microscopy Images Fe 3 O 4 based gel SPIE Conference on Smart Structures 2009, San Diego
  • 7. Schematic of USAXS instrument
    • In slit-smeared geometry at beam-line 32, APS, Argonne National Laboratory
    SPIE Conference on Smart Structures 2009, San Diego
  • 8. USAXS data: Ferrgel-Fe 3 O 4 SPIE Conference on Smart Structures 2009, San Diego
  • 9. USAXS Analysis: Ferrgel-Fe 3 O 4 SPIE Conference on Smart Structures 2009, San Diego
  • 10. USAXS data & Result: Ferrgel  -Fe 2 O 3 SPIE Conference on Smart Structures 2009, San Diego
  • 11. SPIE Conference on Smart Structures 2009, San Diego
  • 12. SPIE Conference on Smart Structures 2009, San Diego
  • 13. Comparison of Result
    • Fe 3 O 4  -Fe 2 O 3
    SPIE Conference on Smart Structures 2009, San Diego
  • 14. DC-SQUID analysis of nanoparticles and Ferrogel SPIE Conference on Smart Structures 2009, San Diego
  • 15. Summary
    • Hydrogel is very heterogeneous material
    • USAXS shows different system of agglomeration, which is confirmed by the TEM analysis
    •  -Fe 2 O 3 has lower degrees of agglomeration compared to Fe 3 O 4
    • DC-Squid shows the confirmation about the amount of material
    SPIE Conference on Smart Structures 2009, San Diego
  • 16. REFERENCES
    • Zrinyi, M., L. Barsi, and A. Buki. “Deformation of ferrogels induced by nonuniform magnetic fields.” The Journal of Chemical Physics 104.21 (1996): 8750-8756.
    • Kato, Norihiro, Yoshihiko Takizawa, and Fujio Takahashi. “Magnetically Driven Chemomechanical Device with Poly(N-isopropylacrylamide) Hydrogel Containing {gamma}- Fe 2 O 3 .” Journal of Intelligent Material Systems and Structures 8.7 (1997): 588-595.  
    • Ramanujan, R. V., and L. L. Lao. “The mechanical behavior of smart magnet–hydrogel composites.” Smart Materials and Structures 15.4 (2006): 952-956.  
    • Ilavsky et al. USAXS instrument paper, accepted 2009 J APpl. Cryst. – ask me for proper reference if I do nto send it to you.
    • Ilavsky J., Jemian P. R., Allen A. J., and Long G. G., “Versatile USAXS (Bonse-Hart) Facility for Advanced Materials Research,” in AIP Conference Proceedings, vol. 705 (AIP, 2004), 510.
    • Ilavsky, J. Jemian, P. Allen, A. J. Long, G. G., “Effective pinhole-collimated ultrasmall-angle x-ray scattering instrument for measuring anisotropic microstructures”. Review Of Scientific Instruments, 2002. 73(3): p. 1660-1662.
    • Ilavsky J. and Jemian P. R., Irena: tool suite for modeling and analysis of small-angle scattering, J. Appl. Cryst., 42 (2009), DOI:XXXXX ask me for the right number if I forget to send it.
    • Jemian, P.R., Weertman J.R., Long G.G. and Spal R.D., “Characterization of 9Cr-1MoVNb Steel by Anomalous Small-Angle X-Ray-Scattering.” Acta Metallurgica Et Materialia, 1991. 39(11): 2477-2487
    • DESIGN, Q. Magnetic Properties Measurement System . 2008 [cited 2008 July-29-2008]; MPMS-XL Product detail]. Available from: http://www.qdusa.com/products/mpms.html .
    • Sample Mounting Considerations . [PDF] 2008 [cited 2008 July-29]; MPMS Application Note 1014-201]. Available from: http://www.qdusa.com/resources/index.html .
    • Vassiliou, John K. et al. “Magnetic and optical properties of gamma-Fe[sub 2]O[sub 3] nanocrystals.” Journal of Applied Physics 73.10 (1993): 5109-5116.  
    • Chatterjee, Jhunu, Yousef Haik, and Ching Jen Chen. “Biodegradable magnetic gel: synthesis and characterization.” Colloid & Polymer Science 281.9 (2003): 892-896.  
    SPIE Conference on Smart Structures 2009, San Diego
  • 17.
    • Thank you!
    • Question?
    SPIE Conference on Smart Structures 2009, San Diego