José Lino Vasconcelos da Costa

Post Doc Research Associate
Center for Laser Applications
University of Tennessee Space Institute
411 B.H. Goethert Parkway, MS 35
Tullahoma, TN 37388-9700

Intro

I was born in Johannesburg (South Africa) and grew up in Madeira Island (Portugal). In 1998 I graduated in Physics at Instituto Superior Tecnico (Lisbon - Portugal). I expect to receive a PhD degree in Materials Science and Engineering from Universidade Tecnica de Lisboa, after defending a dissertation on “Laser powder deposition: process simulation by finite element analysis”.

Academic Background

• Doctoral degree: thesis to be submitted at Universidade Tecnica de Lisboa, Portugal.
  Subject: Laser powder deposition: process simulation by finite element analysis.
• Five year degree in Physics Engineering; October 1998; Instituto Superior Técnico. Lisboa. Portugal.

Research Background

• Research Associate, October 2005 – Present. Center for Laser Applications, University of Tennessee Space Institute.
  Research field: laser materials processing.
  2005-2006: During this period, my work involved the development of the Laser Induced Surface Improvement (LISI) process for military and commercial applications, including LISI-type data matrix marks and wear and corrosion resistant surface coatings on metal surfaces. I also implemented a finite element heat transfer model (FEM) of the LISI process using the ABAQUS FEM software package, tested on the TiC-Al material system.
  2006-2007: Currently, I am working on the development of LISI-type wear resistant coatings capable of withstanding highly abrasive environments, on in-situ synthesis of nano size WC, laser consolidation of novel cermet and glass-metal powders, and optimization of the ebf3 solid freeform fabrication process being developed at NASA.

• PhD student, October 2000 – September 2005. DEMat, Instituto Superior Técnico, Lisboa, Portugal.
  Research field: Laser powder deposition: process simulation by finite element analysis.
  Supervisor: Prof. Rui Vilar.

• Researcher, January 2000 – September 2000. DEMat, Instituto Superior Técnico, Lisboa, Portugal. 
  Research field: development of a LIDAR system applied to early stage forest fire detection.
  Supervisor: Prof. Rui Vilar.

• Undergraduate researcher, July 1997 - September 1998. INESC, Lisboa, Portugal.
  Research field: design, fabrication and testing of spin-valve magnetic field sensors.
  Supervisor: Prof. Paulo P. Freitas.

Publications in journals

• P.P. Freitas, F.Silva, J.L.Costa, N.Almeida, C.Santos, L.V.Melo, J.Bernardo, Giant magnetoresistive sensors for rotational speed control, J.Appl.Phys. 85, 5459 (1999).

• P.P. Freitas, F. Silva, J.L. Costa, N. Almeida, C.Santos, L.V.Melo, J.Bernardo, Spin Valve Sensors, Sensors and Actuactors A, 81, 2 (2000).

• A.Utkin, A.Lavrov, L.Costa, F.Simões, R.Vilar, Detection of small forest fires by lidar, Applied Physics B, A74 (2002) 77-83.

• L. Costa, I. Felde, T. Reti, Z. Kalazi, R. Colaco, R. Vilar, B. Verö; A simplifed semi-emprical method to select the processing parameters for laser clad coatings; Proceedings of the 3rd Hungarian Conference on Materials Science, Testing and Informatics - Materials Science Forum, Vols. 414 – 415 (2003), pp: 385-394, Trans. Tech. Publication Ltd; Balatonfüred, Hungary, 14-17 October 2001.

• L. Costa, R. Vilar, T. Reti, R. Colaço, A. M. Deus, I. Felde; Simulation of phase transformations in steel parts produced by laser powder deposition; Proceedings of the 4th Hungarian Conference on Materials Science, Testing and Informatics – Materials Science Forum, Vols. 473-474 (2005), pp: 315-320, Trans. Tech. Publication Ltd; Balatonfüred, Hungary, 12-14 October 2003.

• L. Costa, R. Vilar, T. Reti; Laser powder deposition of tool steels: strategies leading to homogeneous parts; Proceedings of the III International Materials Symposium, Materiais 2005 and XII Encontro da Sociedade Portuguesa de Materiais; Universidade de Aveiro, Aveiro, Portugal, 20-23 March 2005. Editor: P. M. Vilarinho. Published in Materials Science Forum, Vols. 514-516 (2006), pp. 739-743, Trans. Tech. Publications.

• L. Costa, R. Vilar, T. Reti, A. M. Deus; Rapid tooling by laser powder deposition: process simulation using finite element analysis; Acta Materialia 53 (2005) 3987–3999.

Publications in conference proceedings and presentations

• I. Felde, T. Reti, K. Zoltan, L. Costa, R. Colaco, R. Vilar, B. Verö; A simple technique to estimate the processing window for laser clad coatings; Proceedings of the 1^st international surface engineering congress and the 13^th IFHTSE congress; Columbus, Ohio, USA, 7-10 October 2002.

• L. Costa, T. Reti, A. M. Deus, R. Vilar; Simulation of layer overlap tempering kinetics in steel parts deposited by laser cladding; Proceedings of the 2002 International Conference on Metal Powder Deposition for Rapid Manufacturing; San Antonio, USA, April 2002; Compiled by: D. Keicher, J. W. Sears, J. E. Smugeresky; MPIF; pp: 172-179.

• L. Costa, A. M. Deus, T. Reti, R. Vilar; Simulation of layer overlap tempering in steel parts produced by laser cladding; Proceedings of the RPD 2002 – Advanced Solutions and Development Conference; Marinha Grande, Portugal, 8-9 October 2002; CENTIMFE.

• L. Costa, R. Colaço, T. Réti, A. M. Deus, R. Vilar; Modelling of phase transformations in steel parts built by laser cladding; Presentation at the 2^nd International Conference on thermal process modelling and computer simulation; Nancy, France, 31 March – 2 April 2003; IFHTSE - SF2M.

• L. Costa, R. Colaço, T. Réti, A. M. Deus, R. Vilar; Tempering effects in steel parts produced by additive fabrication using laser powder deposition; Proceedings of VR@P 2003 – 1st International Conference on Advanced Research in Virtual and Rapid Prototyping; Leiria, Portugal, 1-4 October 2003; Edited by: P. J. Bártolo, G. Mitchell; et al.; ESTG – Instituto Politécnico de Leiria; pp: 249-255.

• M. A. Pinto, L. Costa, R. Colaço, R. Vilar, M. C. Ierardi; Caracterização de revestimentos compósitos WC-Co depositados por fusão a laser; Actas do 58º Congresso da Associação Brasileira de Metalurgia e Materiais; Rio de Janeiro, Brasil, 21-24 de Julho de 2003; ABMM, SP, ISSN156-392X, pp: 3421-3430, 2003.

• L. Costa, R. Vilar, T. Réti; Simulating the effects of substrate pre-heating on the final structure of steel parts built by laser powder deposition; Proceedings of The Fifteenth Solid Freeform Fabrication Symposium; The University of Texas at Austin, Austin, Texas, USA, 2-4 August 2004; Edited by D. L. Bourell, R. H. Crawford, J. J. Beaman, K. L. Wood and H. L. Marcus; The University of Texas at Austin; pp: 643-654.

• L. Costa, R. Vilar, T. Reti; Modelling of phase transformations in steel parts built by laser powder deposition; Proceedings of RPD 2004 – Agile Development for Productivity; Centimfe, Marinha Grande, Portugal, 12-13 October 2004; CENTIMFE.

• L. Costa, W. Hofmeister, N. Dahotre; Finite element analysis of laser induced surface improvement of al alloys with TiC; Proceedings of PowderMet2006 Conference, San Diego, 19-21 June 2006, MPIF.