Tanjina Ahmed's project page

Magnetic Properties of oriented 3d printed nanocomposites.

Tanjina Ahmed

I study the properties of magnetic composites including FDM filament and 3D printed samples with VSM, optical microscope, and XRD. The project is done in collaboration with Masters student Maria Camila Belduque and Dr. Jitendra Tate from Manufacturing Engineering.

Presentations:
[1] Tanjina N. Ahmed, Lauren Henderson, Camila Belduque, Maggie Chen, Jitendra S. Tate, Wilhelmus J. Geerts, "Magnetic Field Assisted Additive Manufacturing (MFAAM) of magnetic polymer composite filaments", oral presenttion International Polyolefins Conference, February 23-24, 2021, SPE South Texas Section.
[2] Camila Belduque, Ryan Robinson, Adrian Medina, Tanjina Ahmed, Rijul Kala, Wilhelmus Geerts, Jitendra Tate, “Magnetic and Mechanical Characterization of additive manufactured strontium ferrite/polyamide 12 composites using twin-screw and single-screw extrusion”, accepted for SAMPE-2021 conference, Long Beach, CA, May 24-27, 2021.
[3] Lauren Henderson, Tanjina N. Ahmed, Camila Belduque, Jitendra Tate, Maggie Chen, Wilhelmus J. Geerts, Altering Magnetic Properties of Iron Filament PLA Using Magnetic Field Assisted Additive Manufacturing, accepted for APS March-2021 meeting, March 15-19, 2021.
[4] Tanjina Nasreen Ahmed, Maria Camila Belduque, Jitendra S. Tate, Wilhelmus J. Geerts, “Magnetic Anisotropy and Torque Analysis of Strontium Ferrite/PA12 composite filament and 3D printed sample under a magnetic field”, accepted for APS March-2021 meeting, March 15-19, 2021.
[5] Lauren Henderson, Tanjina N. Ahmed, Camila Belduque, Jitendra Tate, Maggie Chen, Wilhelmus J. Geerts, Altering Magnetic Properties of Iron Filament PLA Using Magnetic Field Assisted Additive Manufacturing, TSAPS Fall-2020 meeting UT Arlington.
[6] Tanjina Ahmed, Binod D.C., Maria Camila Belduque, Jitendra Tate, Wilhelmus Geerts, “Time Dependence of Magnetic Moment of Strontium-Ferrite powder measured by biaxial VSM”, MMM-2020 conference, November 2 through 6 2020, Palm Beach Florida.
[7] Kolton Dieckow, Chandan Howlader, Tanjina Ahmed, Maria Camila Belduque, Jitendra Tate, Wilhelmus Geerts, “Effect of Field Orientation and Infill Percentage on the VSM calibration factor of FFM 3D printed samples”, MMM 2020 conference, oral presentation, Palm Beach Florida, November 2-6-2020.
[8] Camila Belduque, Tanjina Ahmed, Wilhelmus J. Geerts, Jitendra Tate, “Magnetic Moment and Magnetic Anisotropy Analysis of 3D printed Strontium Ferrite/PA12 filament under a Magnetic Field”, SPE-Automotive Composite Conference & Exhibition, September 9-11, Detroit.
[9] Tanjina Nasreen Ahmed, Lauren Henderson, Camila M. Belduque, Jitendra Tate, Maggie Chen, Wilhelmus Geerts, “Effect on the magnetic properties of MFAAM process on hard and soft magnetic 3D printed composite materials measured with a biaxial Vibrating Sample Magnetometer (VSM) and Torque Magnetometer (TM)”, International Research Conference Texas State University, San Marcos, Texas, April 6-8, 2021.
[10] Tanjina N. Ahmed, Camila Belduque, Maggie Y. Chen, Jitendra S. Tate, Wilhelmus J. Geerts, “Time dependence analysis as a function of temperature of magnetic polymer composite filaments”, accepted, oral presentation, joint MMM-Intermag 2022, January 2022, New Orleans.
[11] Camila Belduque, Tanjina Ahmed, Wilhelmus Geerts, Subash Panta, Harrison Thramann, Liam Omer, Jitendra Tate, “Mechanical Properties of re-extruded SrFe12O19(OP-71)/PA12 Filaments via twin-screw extrusion for fused filament fabrication”, oral presentation CAMX, October 2021, Dallas.
[12] Danny Luna, Camilla Belduque, Harrison Thramann, Subash Panta, Liam Omer, Tanjina N. Ahmed, Jitendra Tate, Wilhelmus J. Geerts, “Magnetic 3D Printing Filament Development and Printing Methods”, 2021-Fall TSAPS Meeting October 21-23, University of Houston, Clear Lake.
[13] Tanjina N. Ahmed, Christopher Selsor, Jitendra S. Tate, Wilhelmus J. Geerts, “Magnetic Behavior and Chaining of Strontium Ferrite-Nylon Composite Above the Melting Temperature”, oral presentation, 2022-MMM conference, Minneapolis, MN October 31-November 4 2022.
[14] "Magnetic and Morphological Characterization of SrFe12O19/PA12 Composites: Hard-Magnetic Filament for Magnetic Field Assisted Additive Manufacturing (MFAAM)", Tanjina N. Ahmed, PhD. Dissertation Texas State University, February 2023. thesis.

Publications:
[1] Tanjina Nasreen Ahmed, Kolton Dieckow, Binod D.C., Wilhelmus Geerts, Erik Samwel, "Correction strategy for systematic wobble errors in VSM Torque Curves measured on soft magnetic samples", under preparation.
[2] Tanjina N. Ahmed, Christopher Selsor, Jitendra S. Tate, Wilhelmus J. Geerts, “Magnetic Behavior and Chaining of Strontium Ferrite-Nylon Composite Above the Melting Temperature”, AIP Advances 13, 025024 (2023), https://doi.org/10.1063/9.0000596 impact factor 1.5).
[3] Tanjina Nasreen Ahmed, Camila Belduque, Maggie Y. Chen, Jitendra Tate, Wilhelmus J. Geerts, “Dynamic Viscosity of Strontium Ferrite-Nylon Composite Below the Melting Temperature, AIP Advances 12, 095223 (2022), https://doi.org/10.1063/5.0098972.
[4] M. D. Rahaman, S. K. Saha, T. N. Ahmed, D. K. Saha, A. K. M. Akther Hossain, “Magnetoelectric effect of (1-x)Ba0.5Sr0.5Zr0.5Ti0.5O3 + (x) Ni0.12Mg0.8Cu0.20Zn0.50Fe2O4 composites”, Journal of Magnetism and Magnetic Materials, vol: 371 (2014), pp: 112-120.
[5] Tanjina Nasreen Ahmed, Maria Camila Belduque, Binod D.C., Jitendra Tate, Wilhelmus J. Geerts, "Time dependence of magnetic moment of strontium-ferrite powder measured with a biaxial vibrating sample magnetometer (VSM)", AIP Advances 11, 015048 (2021), https://doi.org/10.1063/9.0000216.
[6] Camila Belduque, Ryan Robinson, Adrian Medina, Tanjina Ahmed, Rijul Kala , Wilhelmus Geerts, and Jitendra Tate, “Magnetic and Mechanical characterizzation of Additive Manufactured Strontium Ferrite/Polyamide 12 Composites for Magnetic Devices using Twin-Screw and Single-Screw Extrusion”, SAMPE-2021 conference proceedings, ISBN Number: 978-1-934551-39-4, Long Beach, CA, May 24-27, 2021.
[7] Adeniji E. Adetayo, Tanjina N. Ahmed, Alex Zakhidov, Gary W. Beall, "Improvements of Organic Light-Emitting Diodes Using Graphene as an Emerging and Efficient Transparent Conducting Electrode Material", Advanced Optical Materials, Advanced Optical Materials 2021, 2002102, https://doi.org/10.1002/adom.202002102
[8] Lauren Henderson, Sam Zamora, Tanjina N. Ahmed, Camila Belduque, jitendra Tate, Maggie Yihong Chen, Wilhelmus J. Geerts, "Altering Magnetic properties of Iron Filament PLA using Magnetic Field Assisted Additive Manuifacturing (MFAAM)", J. Magn. Magn. Mat. 538 (2021) 168320.
[9] Camila Belduque, Tanjina Ahmed, Wilhelmus Geerts, Subash Panta, Harrison Thramann, Liam Omer, Jitendra Tate, “Mechanical Properties of re-extruded SrFe12O19(OP-71)/PA12 Filaments via twin-screw extrusion for fused filament fabrication”, CAMX-2021 proceedings, ISBN Number 978-1-934551-39-40-0, October 2021, Dallas.

Tanjina is currently working for Intel in Alburquerque.