Characterization of ferrogels prepared using   -Fe 2 O 3  and Fe 3 O 4  nanoparticles Presented by Kamlesh J. Suthar  Mur...
Outline SPIE Conference on Smart Structures 2009, San Diego
Introduction <ul><li>Polymeric gel with magnetic nanoparticles </li></ul><ul><li>Magneto-elastic materials  that produce s...
Synthesis of NIPAAm Hydrogel <ul><li>Polymer  N-Isopropylacrylamide  hydrogel can be prepared by copolymerization with oth...
Nanoparticles: Fe 3 O 4  and   -Fe 2 O 3 SPIE Conference on Smart Structures 2009, San Diego
Microscopy Images Fe 3 O 4  based gel SPIE Conference on Smart Structures 2009, San Diego
Schematic of USAXS instrument <ul><li>In slit-smeared geometry at beam-line 32, APS, Argonne National Laboratory </li></ul...
USAXS data: Ferrgel-Fe 3 O 4 SPIE Conference on Smart Structures 2009, San Diego
USAXS Analysis: Ferrgel-Fe 3 O 4 SPIE Conference on Smart Structures 2009, San Diego
USAXS data & Result: Ferrgel   -Fe 2 O 3 SPIE Conference on Smart Structures 2009, San Diego
SPIE Conference on Smart Structures 2009, San Diego
SPIE Conference on Smart Structures 2009, San Diego
Comparison of Result <ul><li>Fe 3 O 4  -Fe 2 O 3 </li></ul>SPIE Conference on Smart Structures 2009, San Diego
DC-SQUID analysis of nanoparticles and Ferrogel SPIE Conference on Smart Structures 2009, San Diego
Summary <ul><li>Hydrogel is very heterogeneous material </li></ul><ul><li>USAXS shows different system of agglomeration, w...
REFERENCES <ul><li>Zrinyi, M., L. Barsi, and A. Buki. “Deformation of ferrogels induced by nonuniform magnetic fields.”  T...
<ul><li>Thank you! </li></ul><ul><li>Question? </li></ul>SPIE Conference on Smart Structures 2009, San Diego
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Characterization Of Ferrogels Prepared Ferrite Nano P

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Characterization Of Ferrogels Prepared Ferrite Nano P

  1. 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. 2. Outline SPIE Conference on Smart Structures 2009, San Diego
  3. 3. Introduction <ul><li>Polymeric gel with magnetic nanoparticles </li></ul><ul><li>Magneto-elastic materials that produce strain on an applied magnetic field, E = 0.23 MPa </li></ul><ul><li>Primarily describes the methods used in the synthesis for different ferrogel samples with different compositional variables </li></ul><ul><li>The magnetite particles (10-50 nm, Fe 3 O 4 , Fe 2 O 3 ) were distributed </li></ul><ul><li>Characterization : Ultra Small Angle X-ray Scattering ( USAXS ) and SEM techniques are used to analyze the particle size and distribution within the gel. </li></ul><ul><li>The quality of the ferrogel is mainly determined by the uniformity of distribution and the extent of agglomeration . </li></ul>SPIE Conference on Smart Structures 2009, San Diego
  4. 4. Synthesis of NIPAAm Hydrogel <ul><li>Polymer N-Isopropylacrylamide hydrogel can be prepared by copolymerization with other hydrophilic or hydrophobic polymers </li></ul><ul><li>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 </li></ul><ul><li>Ferrogel is made by mixing NIPAM+ BIS+ Nano-particles followed by prolonged sonication and adding reagent and initiator </li></ul>SPIE Conference on Smart Structures 2009, San Diego
  5. 5. Nanoparticles: Fe 3 O 4 and  -Fe 2 O 3 SPIE Conference on Smart Structures 2009, San Diego
  6. 6. Microscopy Images Fe 3 O 4 based gel SPIE Conference on Smart Structures 2009, San Diego
  7. 7. Schematic of USAXS instrument <ul><li>In slit-smeared geometry at beam-line 32, APS, Argonne National Laboratory </li></ul>SPIE Conference on Smart Structures 2009, San Diego
  8. 8. USAXS data: Ferrgel-Fe 3 O 4 SPIE Conference on Smart Structures 2009, San Diego
  9. 9. USAXS Analysis: Ferrgel-Fe 3 O 4 SPIE Conference on Smart Structures 2009, San Diego
  10. 10. USAXS data & Result: Ferrgel  -Fe 2 O 3 SPIE Conference on Smart Structures 2009, San Diego
  11. 11. SPIE Conference on Smart Structures 2009, San Diego
  12. 12. SPIE Conference on Smart Structures 2009, San Diego
  13. 13. Comparison of Result <ul><li>Fe 3 O 4  -Fe 2 O 3 </li></ul>SPIE Conference on Smart Structures 2009, San Diego
  14. 14. DC-SQUID analysis of nanoparticles and Ferrogel SPIE Conference on Smart Structures 2009, San Diego
  15. 15. Summary <ul><li>Hydrogel is very heterogeneous material </li></ul><ul><li>USAXS shows different system of agglomeration, which is confirmed by the TEM analysis </li></ul><ul><li> -Fe 2 O 3 has lower degrees of agglomeration compared to Fe 3 O 4 </li></ul><ul><li>DC-Squid shows the confirmation about the amount of material </li></ul>SPIE Conference on Smart Structures 2009, San Diego
  16. 16. REFERENCES <ul><li>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. </li></ul><ul><li>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.   </li></ul><ul><li>Ramanujan, R. V., and L. L. Lao. “The mechanical behavior of smart magnet–hydrogel composites.” Smart Materials and Structures 15.4 (2006): 952-956.   </li></ul><ul><li>Ilavsky et al. USAXS instrument paper, accepted 2009 J APpl. Cryst. – ask me for proper reference if I do nto send it to you. </li></ul><ul><li>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. </li></ul><ul><li>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. </li></ul><ul><li>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. </li></ul><ul><li>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 </li></ul><ul><li>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 . </li></ul><ul><li>Sample Mounting Considerations . [PDF] 2008 [cited 2008 July-29]; MPMS Application Note 1014-201]. Available from: http://www.qdusa.com/resources/index.html . </li></ul><ul><li>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.   </li></ul><ul><li>Chatterjee, Jhunu, Yousef Haik, and Ching Jen Chen. “Biodegradable magnetic gel: synthesis and characterization.” Colloid & Polymer Science 281.9 (2003): 892-896.   </li></ul>SPIE Conference on Smart Structures 2009, San Diego
  17. 17. <ul><li>Thank you! </li></ul><ul><li>Question? </li></ul>SPIE Conference on Smart Structures 2009, San Diego

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