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Yttria stabilized zirconia (YSZ) film has been screen printed and sintered on a rigid substrate. The constrained sintering caused the formation of multiple microcracks and most critically large “blister” defects. The morphology of such defects has been characterized by scanning electron microscopy (SEM). It was revealed that the film surface exhibits noticeable roughness. Microhardness testing revealed little variation in green density distribution. Rheological measurement, however, showed that some agglomerations are present in the YSZ ink. The existence of agglomerations in the screen printing ink in combination with debonding at the film/substrate interface is potentially the cause for the formation of blister defects.


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Blister defect formation within partially stabilized zirconia film during constrained sintering

Show Author's information Kais HBAIEBa,b( )
Strategic Technology Unit, First Floor, Room G-08, Taibah University, P.O. Box 344, Al-Madinah Al-Munawwara, Kingdom of Saudi Arabia
Mechanical Department, College of Engineering, Taibah University, P.O. Box 344, Al-Madinah Al-Munawwara, Kingdom of Saudi Arabia

Abstract

Yttria stabilized zirconia (YSZ) film has been screen printed and sintered on a rigid substrate. The constrained sintering caused the formation of multiple microcracks and most critically large “blister” defects. The morphology of such defects has been characterized by scanning electron microscopy (SEM). It was revealed that the film surface exhibits noticeable roughness. Microhardness testing revealed little variation in green density distribution. Rheological measurement, however, showed that some agglomerations are present in the YSZ ink. The existence of agglomerations in the screen printing ink in combination with debonding at the film/substrate interface is potentially the cause for the formation of blister defects.

Keywords:

constrained sintering, defects, yttria stabilized zirconia (YSZ), desintering, debonding
Received: 16 September 2014 Revised: 10 November 2014 Accepted: 11 November 2014 Published: 31 January 2015 Issue date: March 2015
References(19)
[1]
Li W, Hasinska K, Seabaugh M, et al. Curvature in solid oxide fuel cells. J Power Sources 2004, 138:145-155.
[2]
Guo H, Iqbal G, Kang BS. Development of an in situ surface deformation and temperature measurement technique for a solid oxide fuel cell button cell. Int J Appl Ceram Tec 2010, 7:55-62.
[3]
Lange FF. Densification of powder compacts: An unfinished story. J Eur Ceram Soc 2008, 28:1509-1516.
[4]
Lange FF. De-sintering, a phenomenon concurrent with densification within powder compacts: A review. In Sintering Technology. German RM, Messing GL, Cornwall RG, Eds. New York:Marcel Dekker Inc., 1996: 1-12.
[5]
Bordia RK, Raj R. Sintering behavior of ceramic films constrained by a rigid substrate. J Am Ceram Soc 1985, 68:287-292.
[6]
Cheng T, Raj R. Flaw generation during constrained sintering of metal–ceramic and metal–glass multilayer films. J Am Ceram Soc 1989, 72:1649-1655.
[7]
Bordia RK, Jagota A. Crack growth and damage in constrained sintering films. J Am Ceram Soc 1993, 76:2475-2485.
[8]
Wang X, Kim J-S, Atkinson A. Constrained sintering of 8 mol% Y2O3 stabilised zirconia films. J Eur Ceram Soc 2012, 32:4121-4128.
[9]
Wang X, Atkinson A. Microstructure evolution in thin zirconia films: Experimental observation and modelling. Acta Mater 2011, 59:2514-2525.
[10]
Henrich B, Wonisch A, Kraft T, et al. Simulations of the influence of rearrangement during sintering. Acta Mater 2007, 55:753-762.
[11]
Fu Z, Dellert A, Lenhart M, et al. Effect of pore orientation on anisotropic shrinkage in tape-cast products. J Eur Ceram Soc 2014, 34:2483-2495.
[12]
Heunisch A, Dellert A, Roosen A. Effect of powder, binder and process parameters on anisotropic shrinkage in tape cast ceramic products. J Eur Ceram Soc 2010, 30:3397-3406.
[13]
Guillon O, Weiler L, Rödel J. Anisotropic microstructural development during the constrained sintering of dip-coated alumina thin films. J Am Ceram Soc 2007, 90:1394-1400.
[14]
Calata JN, Matthys A, Lu G-Q. Constrained-film sintering of cordierite glass-ceramic on silicon substrate. J Mater Res 1998, 13:2334-2341.
[15]
Mohanram A, Lee S-H, Messing GL, et al. Constrained sintering of low-temperature co-fired ceramics. J Am Ceram Soc 2006, 89:1923-1929.
[16]
Lu X-J, Xiao P. Constrained sintering of YSZ/Al2O3 composite coatings on metal substrates produced from eletrophoretic deposition. J Eur Ceram Soc 2007, 27:2613-2621.
[17]
Martin CL, Bordia RK. The effect of a substrate on the sintering of constrained films. Acta Mater 2009, 57:549-558.
[18]
Green DJ, Guillon O, Rödel J. Constrained sintering: A delicate balance of scales. J Eur Ceram Soc 2008, 28:1451-1466.
[19]
Tillman M, Yeomans JA, Dorey RA. The effect of a constraint on the sintering and stress development in alumina thick films. Ceram Int 2014, 40:9715-9721.
Publication history
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Publication history

Received: 16 September 2014
Revised: 10 November 2014
Accepted: 11 November 2014
Published: 31 January 2015
Issue date: March 2015

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© The author(s) 2015

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