VIRGILIU STOICA

Mechanical Engineering

School of Engineering and Physical Sciences

Heriot-Watt University, EH14 4AS, Edinburgh, UK

+44.(0)131.449.5111ext4569 (work)

v.stoica@hw.ac.uk

 

 

Current research interests include complex characterisation of thermally sprayed wear resistant cermet coatings - microstructure (SEM-EDX, XRD, EPMA, DTA/TG), physical properties (microhardness, fracture toughness, elastic modulus - nanoindentations), residual stress (x-ray, synchrotron, neutron diffraction) and evaluation of wear performance in various tribological conditions.

 

 

EDUCATION

Heriot-Watt University, Edinburgh, United Kingdom

2000-present

 

Degree Program: PhD in Mechanical Engineering

 

 

Dunarea de Jos University, Galati, Romania

1995-2000

 

Degree Program: BSc in Mechanical Engineering

 

Honours:

Scholarship for excellence at Dunarea de Jos University 1998-2000

First award in local student contest, Tribology section, for: “Acquisition and processing of the surface topography data” 05/2000

First award in student contest, Mechanics section, for: “Stress Evaluation of Pressed Bodies via FEA” 05/2000

05/1999 First award in student contest, Tribology section, for: “Tribological Behaviour of Electro Technical Textolite”

 

TRAINING

Residual stress measurements using strain gauge. Strathclyde University, Glasgow

2001

 

Residual stress measurements using diffraction method (conventional X-rays). Ashikaga Institute of Technology, Japan

2002

 

Residual stress measurements using neutron diffraction. ISIS, UK

2002

 

Using scanning electron microscope – Philips S500. Heriot-Watt University, Edinburgh, UK

2001

 

Atomic force microscopy. Heriot-Watt University, Edinburgh, UK

2001

 

Interferometry. Using Zygo NewView 5000. Lambda Photometrics Limited, Harpenden, UK

2002

 

Measuring modulus and hardness via nano indentation. Micro Materials Limited, Wrexham, UK

2003

 

Using TE92HS tribometer (Plint Tribology) for POD and RCF wear testing. Heriot-Watt University, Edinburgh, UK

2002

 

Using HVOF process (JP5000 system) for spraying wear resistance coatings. SulzerMetco, UK

2002

 

Radiation Protection course. University of Edinburgh, UK.

2001

 

PUBLICATIONS

·         D. Panturu, M. Ripa, V. Stoica, Study of the Tribological Behaviour of Electro Technical Textolite, Dunarea de Jos University Journal, Vol. III, No. VIII, 1998.

·         M. Ripa, V. Stoica, Study on the Influence of some Kinematics and Geometrical Parameters of Spur Gears on the Characteristics of the Hertzian Contact, Dunarea de Jos University Journal, Vol. IV, No. VIII, 1998.

·         M. Ripa, C. Spanu, V. Stoica, Abbott curve studies in rolling/sliding tests, The Tenth Edition of the International Elastohydrodinamic Conference, VAREHD2000, 6-7 Oct. 2000, Suceava, Romania.

·         M. Ripa, O. Bratcu, C. Spanu, V. Stoica, Topographical changes in rolling/sliding wear tests, The First Mediterranean Tribology Conference MTC 8-9 Nov. 2000, Jerusalem, Israel (published abstract).

·         M. Ripa, I. Crudu, V. Stoica, A. Preda, Surface profilometry studies in rolling/sliding wear tests, 2nd World Tribology Congress, Sept. 3-9, Vienna 2001 (published abstract).

·         V. Stoica, R. Ahmed, S. Tobe, Wear of Hot Isostatically Pressed (HIPed) Thermal Spray Cermet Coatings, pp. 930-937 of Thermal Spray: Surface Engineering via Applied Research, C.C. Berndt, Ed, ASM International, ISBN: 0-87170-680-6, 2002.

·         V. Stoica, R. Ahmed, S. Tobe, Wear of Hot Isostatically Pressed (HIPed) Thermal Spray Cermet Coatings, pp. 93-107 of Journal of Thermal Spray Technology, 13(1), 2004.

·         V. Stoica, R. Ahmed, T. Itsukaichi, S. Tobe, M. Escribano, Sliding Wear Evaluation of Hot Isostatically Pressed (HIPed) Thermal Spray Cermet Coatings, pp. 459-466 of Thermal Spray 2003: Advancing the Science and Applying the Technology, B.R. Marple and C. Moreau, Ed., ASM International, ISBN: 0-87170-785-3, 2003.

·         S. Tobe, R. Ahmed, V. Stoica, Enhancement of Mechanical Properties of WC-Co Thermal Spray Coating by HIP Process, Tribology in Environmental Design 2003, 2nd International Conference, Bournemouth, UK.

·         V. Stoica, R. Ahmed, T. Itsukaichi, S. Tobe, Sliding Wear Evaluation of Hot Isostatically Pressed (HIPed) Thermal Spray Cermet Coatings, accepted with minor corrections in Wear, July 2003.

·         V. Stoica, R. Ahmed, Influence of Vacuum Heat Treatment on Sliding Wear of Thermal Spray Cermet Coatings, submitted to Surface and Coating Technology, September 2003.

·         R. Ahmed, S. Stewart, V. Stoica, T. Itsukaichi, Influence of Post-treatment on the Tribomechanical Properties of Cermet Coatings, presented at the International Thermal Spray Conference, Japan, 2004.

 

SELECTED PRESENTATIONS

 

HIPing of Thermal Spray Coatings for Tribological Applications

Sliding Wear of HIPed Cermet Coatings

Wear of HIPed Thermal Spray Coatings