NIST logo
*
Bookmark and Share

Nik Hrabe

RESEARCH INTERESTS

Titanium metallurgy; biomedical applications; orthopaedic implant applications; medical device applications; solid freeform fabrication processing methods (especially electron beam melting (EBM) and laser engineered net shaping (LENS)); porous materials; development of quality control methods.

PROFESSIONAL AFFILIATIONS

American Society for Metals (ASM)
The Minerals, Metals, and Materials Society (TMS)

HONORS/AWARDS

2011  NRC-NIST Postdoctoral Research Fellowship
2010 
Indo-US Science and Technology Forum (IUSSTF) Fellowship
2010  Commercialization Gap Fund (University of Washington)
2007
  East Asia and Pacific Summer Institutes (EAPSI) Fellowship (National Science Foundation (NSF))
2006  Ford Motor Company Graduate Fellowship (UW College of Engineering)
2005  Graduate School Fund for Excellence and Innovation (GSFEI) Fellowship
2004  Early Bird in Nanotechnology Fellowship (UW and Pacific Northwest National Labs (PNNL))
2004-2007  Achievement Rewards for College Scientists (ARCS) Fellowship
2003  Northwestern University Outstanding Co-op Student of the Year (2nd Place)
2002, 2003  DePuy Spotlight Award

PUBLICATIONS

1)  Hrabe NW, Heinl P, Flinn B, Körner C, Bordia RK, “Compression-Compression Fatigue of Selective Electron Beam Melted Cellular Titanium (Ti-6Al-4V),” submitted to Journal of Biomedical Materials Research, part B.
2)  Hrabe NW, Heinl P, Bordia RK, Körner C, Fernandes R, “Attachment, Proliferation, and Maintenance of a Bone Collagen Phenotype In-Vitro by Osteoblast-like Cells in 3D Periodic Porous Titanium (Ti-6Al-4V) Structures Fabricated by Selective Electron Beam Melting” submitted to Journal of Biomedical Materials Research, part A.
3)  Hrabe NW, Heinl P, Körner C, Bordia RK, “Effect of Hot Isostatic Pressing (HIP) on Structure and Properties of Cellular Ti-6Al-4V Fabricated by Selectrive Electron Beam Melting (EBM),” in preparation.
4)  Hrabe NW, Heinl P, Körner C, Bordia RK, “Fatigue Characterization of Cellular Commercially Pure Titanium Fabricated by Selective Electron Beam Melting,” in preparation
5)  Hrabe NW, Fuchs B, Heinl P, Körner C, Bordia RK, “Nanoindentation and Strain Rate Sensitivity of Cellular Ti-6Al-4V Fabricated by Selective Electron Beam Melting,” in preparation.
6)  Hrabe NW, Camacho-Montes H, Bordia RK, “Numerical Modeling Investigation of Cell Shape Effect in Cellular Solid Elastic Modulus Prediction,” in preparation.
7)  Hrabe NW, Krishna BV, Bandyopadhyay A, Bordia RK, “Fatigue Characterization of Porous Commercially Pure Titanium Fabricated by Laser Engineered Net Shaping,” in preparation.
8)  Ingram BJ, Harder BJ, Hrabe NW, et al.; "Transport and defect mechanisms in cuprous delafossites. 2. CuScO2 and CuYO2;" Chemistry of Materials; 16: 5623-5629 (2004).
9)  Kammler DR, Harder BJ, Hrabe NW, et al.; “Subsolidus phase relations and transparent conductors in the cadmium-indium-tin oxide system;” Journal of the American Ceramic Society; 85 (9): 2345-2352 (SEP 2002).

PRESENTATIONS

1)  Orthopaedic Research Society Conference, Long Beach, CA, 2011 “Maintenance of a Bone Collagen Phenotype in 3D Periodic Porous Ti-6Al-4V Scaffolds fabricated by Electron Beam Melting” - poster
2)  University of Washington, Orthopaedics and Sports Medicine Special Seminar, Seattle, WA, 2010 “The Future of Load-Bearing Bone Replacement Implants: Mechanical and In-Vitro Characterization of Fully Porous Titanium Fabricated by Selective Electron Beam Melting”.
3)  Society for Biomaterials Conference, Seattle, WA, 2010 “Effect of Porosity on Mechanical Properties and Biological Response of 3D Periodic Porous Titanium” – poster.
4)  The Minerals, Metals, and Materials Society (TMS) Conference, Seattle, WA, 2010 “Compression-Compression Fatigue of LENS-Processed Cellular Titanium”.
5)  TMS Conference, Seattle, WA, 2010 “Fatigue of EBM-Processed Cellular Titanium for Biomedical Applications” – poster.
6)  Materials Science and Technology (MS&T), Pittsburgh, PA, 2009 Fatigue Characterization of Cellular Titanium for Biomedical Applications”.
7)  Pacific Rim Conference on Ceramic and Glass Technology (PACRIM8), Vancouver, BC, 2009 “Biomimetic Apaptite Deposition on Porous Titanium for Biomedical Applications”.
8)  Washington Research Foundation Festschrift, University of Washington, 2005 “Functionally Graded Porous Titanium for Biomedical Applications” - poster.
Nik-Hrabe

Position:

Research Engineer
Materials Reliability
Cell & Tissue Mechanics

Employment History:

2011-present: NIST (Boulder, CO), Materials Reliability Division, NRC/NIST Postdoctoral Fellow, advisor: Dr. Timothy Quinn, “Development of a Standardized Test Method for Validation of Ti-6Al-4V Parts Made Via Electron Beam Melting” 

2010-2011: University of Washington (Seattle, WA), Materials Science and Engineering Department, Postdoctoral Research Associate, advisor: Prof. Rajendra Bordia, “Determination of Optimal Elastic Modulus Gradients for Tibial Component and Large Bone Defect Implants”

2004-2010: University of Washington (Seattle, WA), Materials Science and Engineering Department, Graduate Research Assistant, advisor: Prof. Rajendra Bordia, “Characterization of Cellular Titanium for Biomedical Applications”

2002-2003: DePuy Orthopaedics (Warsaw, IN), Co-op Employee, Metallurgy R&D Department

Education:

Ph.D., Materials Science and Engineering, University of Washington (Seattle, WA), 2010, Advisor: Prof. Rajendra Bordia, "Characterization of Cellular Titanium for Biomedical Applications"

B.S., Materials Science and Engineering, Northwestern University (Evanston, IL), 2004, Advisor: Prof. David Dunand, "Hardness Optimization of Ti/W alloys for Biomedical Applications"
Contact

Phone: 303.497.4273
Email: nik.hrabe@nist.gov
Fax: 303.497.5030