Investigation of the effects of nonconventional beam geometries in laser surface treatment of ceramics: Theoretical analysis

Journal of Laser Applications

Volumn 18, Issue 2, 2006, Pages 161-168

  Triantafyllidis, D ^a   Li, L ^a   Stott, F H ^a  

^a UNIVERSITY OF MANCHESTER   (United Kingdom)

Author keywords

Ceramics; Cooling rate; Crack free; Geometry; Laser; Modeling

Indexed keywords

CRACK PROPAGATION; FINITE ELEMENT METHOD; LASER BEAMS; MELTING; SOLIDIFICATION; SURFACE TREATMENT;

CIRCULAR BEAM GEOMETRY; COOLING RATE; LASER SURFACE TREATMENT; THERMAL SHOCK CONDITIONS;

CERAMIC MATERIALS;

EID: 33845670929     PISSN: 1042346X     EISSN: None     Source Type: Journal    
DOI: 10.2351/1.2193176     Document Type: Article

References (20)

1. D. Triantafyllidis, "Laser surface treatment of ceramics for high-temperature applications," Ph.D. thesis, University of Manchester Insti tute of Science and Technology, 2003; pp. 73-89.
2. Y. X. Chen, Y. Y. He, P. S. Jun, and S. J. Nian, "The role of beam shape in convection and heat transfer in laser melted pool," Proceedings ICALEO '90, Boston, MA, 4-9 November, 1990, Vol. 82, pp. 480-491.
3. P. S. Wei, C. Y. Ho, M. D. Shian, and C. L. Hu, "Three-dimensional analytical temperature field and its application to solidification characteristics in high- and low-power-density-beam welding," Int. J. Heat Mass Transfer 40, 2283-2292 (1997).
4. S. Z. Shuja and B. S. Yilbas, "3-dimensional conjugate laser heating of a moving slab," Appl. Surf. Sci. 167, 134-148 (2000).
5. A. Kar, J. E. Scott, and W. P. Latham, "Effects of mode structure on three-dimensional laser heating due to single or multiple rectangular laser beams," J. Appl. Phys. 80, 667-674 (1996).
6. M. Matsumoto, M. Shiomi, K. Osakada, and F. Abe, "Finite element analysis of single layer forming on metallic powder bed in rapid prototyping by selective laser processing," Int. J. Mach. Tools Manuf. 452, 61-67 (2002).
7. V. Shankar and D. Gnanamuthu, "Computational simulation of heat transfer in laser melted material flow," Proceedings of AIAA 24th International Aerospace Science Meeting, Reno, NV, 1986, pp. 1-10.
8. L. X. Yang, X. F. Peng, and B. X. Wang, "Numerical modelling and experimental investigation on the characteristics of molten pool during laser processing," Int. J. Heat Mass Transfer 44, 4465-4773 (2001).
9. D. Triantafyllidis, L. Li, and F. H. Stott, "Investigation of the effects of nonconventional beam geometries in laser surface treatment of ceramics: Experimental analysis," J. Laser Appl. (in press).
10. ADINA Theory and Modelling Guide, Volume II: ADINA-T (ADINA R&D Inc., New York, 2000), pp. 5-8.
11. K. J. Bathe and M. R. Khoshgoftaar, "Finite element formulation and solution of nonlinear heat transfer," Nucl. Eng. Des. 51, 389-401 (1979).
12. K. J. Bathe and A. P. Cimento, "Some practical procedures for the solution of non-linear finite element equations," Comput. Methods Appl. Mech. Eng. 22, 59-85 (1980).
13. W. D. Rolph and K. J. Bathe, "An efficient algorithm for analysis of non-linear heat transfer with phase changes," Int. J. Numer. Methods Eng. 18, 119-134 (1982).
14. K. J. Bathe, Finite Element Procedures (Prentice-Hall, New York, 1996), pp. 642-661.
15. KR85C Technical Data Sheet, RHI Dinaris GmbH, 2000.
16. Ceramics and Glasses, Engineered Materials Handbook (ASM International, Metals Park, OH, 1991) Vol. 4, pp. 549-616.
17. W. D. Kingery, "Factors affecting thermal shock stress resistance of ceramic materials," J. Am. Ceram. Soc. 38, 3-15 (1955).
18. The Pyrometer Handbook, IMPAC Electronic GmbH, 2000, p. 60.
19. B. D. Choules, K. Kokini, and T. A. Taylor, "Thermal fracture of ceramic thermal barrier coatings under high heat flux with time-dependent behavior. Part 1. Experimental results," Mater. Sci. Eng., A 299, 296-304 (2001).
20. R. Sivakumar and B. L. Mordike, "Laser melting of plasma sprayed ceramic coatings," Surf. Eng. 4, 127-140 (1988).