Hostname: page-component-76fb5796d-5g6vh Total loading time: 0 Render date: 2024-04-25T10:02:56.012Z Has data issue: false hasContentIssue false
  • English
  • Français

Selective Laser Sintering of Zirconia

Published online by Cambridge University Press:  10 February 2011

Nicole R. Harlan ,
David Bourell ,
Seok-Min Park  and
Joseph J. Beaman Jr
Nicole R. Harlan
Affiliation:
Texas Materials Institute, Department of Mechanical Engineering, The University of Texas at Austin
David Bourell
Affiliation:
Texas Materials Institute, Department of Mechanical Engineering, The University of Texas at Austin
Seok-Min Park
Affiliation:
Texas Materials Institute, Department of Mechanical Engineering, The University of Texas at Austin
Joseph J. Beaman Jr
Affiliation:
Texas Materials Institute, Department of Mechanical Engineering, The University of Texas at Austin
Get access

Abstract

A combination of Selective Laser Sintering and colloidal infiltration has been used to create partially stabilized zirconia molds for titanium casting. The mold material system was chosen for its low reactivity with molten titanium and thermal shock resistance. The base material, stabilized zirconia mixed with a copolymer binder, was pre-processed before laser sintering into the desired green shape. The average density of the fired parts could be increased to twice that of the green density. Hole sizes as small as 180 m are possible in thin ceramic components.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 625: Symposium Y – Solid Freeform & Additive Fabrication – 2000 , 2000 , 67
Copyright
Copyright © Materials Research Society 2000

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1 Saha, R.L. and Jacob, K.T., Casting of Titanium and Its Alloys, Defense Science Journal, 36 [2] (April, 1986), p. 125–141.Google Scholar
2 Karwinski, A., Stachanczyk, J. and Zapalska-Nowak, K., Titanium Casting, Foundry Trade Journal, 169 [3513] (Dec. 1995), pp. 566–570.Google Scholar
3 Calvert, E.D., An Investment Mold for Titanium Casting, U.S. Bureau of Mines Report of Investigations, [8541], (1981).Google Scholar
4 Brown, R.A. and Brown, C.A., Method of Making Investment Shell Molds for the High Integrity Precision Casting of Reactive and Refractory Metals, U.S. Patent 3,422,880, (1969).Google Scholar
5 Stevens, R., Zirconia and Zirconia Ceramics, 2nd Ed., Magnesium Elektron Ltd., (1986).Google Scholar
6 Richerson, D.W., Modem Ceramic Engineering, Marcel Dekker, Inc., (1992), p. 21.Google Scholar
7 Bourell, D.L., , Parimal, and Kaysser, W., Sol-Gel Synthesis of Nanophase Yttria-Stabilized Tetragonal, Zirconia and Densification Behavior Below 1600K, J. Am. Ceram. Soc., 76 [3] (March, 1993), p.709.Google Scholar
8 Vail, N.K., Preparation and Characterization of Microencapsulated, Finely Divided Ceramic Materials for Selective Laser Sintering, Ph.D. Dissertation, The University of Texas at Austin, (1994).Google Scholar
9 Badrinarayan, B. and Barlow, J.W., Effect of Processing Parameters in SLS of Metal-Polymer Powders, SFF Symposium Proc., 6 (1995), pp. 55–63.Google Scholar
10 Tu, W. and Lange, F.F., Liquid Precursor Infiltration Processing of Powder Compacts: I, Kinetic Studies and Microstructure Development, J. Am. Ceram. Soc., 78 [12] (1995), pp. 3277–3282.Google Scholar
11 Boyer, R., Titanium and Titanium Alloys, Metals Handbook, 9th ed., ASM, 9 (1985) pp. 458–475.Google Scholar
12 Budinski, K.G., Engineering Materials - Properties and Selection, 5th ed., Prentice Hall, (1996), p. 45.Google Scholar