Evaluating sol-gel ceramic thin films for metal implant applications. I. Processing and structure of zirconia films on Ti-6Al-4V

Journal of Biomedical Materials Research

Volumn 33, Issue 4, 1996, Pages 225-238

  Filiaggi, Mark J ^a   Pilliar, Robert M ^a   Yakubovich, Raisa ^a   Shapiro, Galina ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

ANNEALING; CERAMIC MATERIALS; COATINGS; IMPLANTS (SURGICAL); SOL-GELS; STRUCTURE (COMPOSITION); TITANIUM ALLOYS; VISCOSITY; X RAY DIFFRACTION; ZIRCONIA;

REPRODUCIBILITY; SOL GEL THIN FILM PROCESSING; SURFACE MACRODEFECTS; ZIRCONIUM PROPOXIDE;

THIN FILMS;

METAL; ZIRCONIUM;

ARTICLE; CERAMIC PROSTHESIS; CERAMICS; CHEMICAL ANALYSIS; CORROSION; METAL IMPLANTATION; METAL METABOLISM; PROSTHESIS FIXATION; REPRODUCIBILITY;

ALLOYS; BIOCOMPATIBLE MATERIALS; BONE SUBSTITUTES; CERAMICS; GELS; PROSTHESES AND IMPLANTS; SOLUTIONS; TITANIUM; X-RAY DIFFRACTION; ZIRCONIUM;

EID: 0030560765     PISSN: 00219304     EISSN: None     Source Type: Journal    
DOI: 10.1002/(SICI)1097-4636(199624)33:4<225::AID-JBM3>3.0.CO;2-R     Document Type: Article

References (116)

1. Mishra, A. K.; Davidson, J. A. Abrasion resistance of candidate coatings for orthopaedic articulating surfaces. Doherty, P. J.; Williams, R. L.; Williams, D. F.; Lee, A. J. C. eds. Biomaterial-Tissue Interfaces, Advances in Biomaterials 10. Amsterdam: Elsevier Science Publishers; 1992: 111-121.
2. Davidson, J. A. Ceramic coatings for orthopaedic bearing surfaces. Vincenzini, P. ed. Ceramics in Substitutive and Reconstructive Surgery. Amsterdam: Elsevier Science Publishers; 1991:157-166.
3. Lilley, P. A.; May, D. R.; Walker, P. S.; Blunn, G. W. Wear performance of ceramic coated titanium used in the Stanmore hinge total knee arthroplasty. Doherty, P. J.; Williams, R. L.; Williams, D. F.; Lee, A. J. C. Eds. Biomaterial-Tissue Interfaces, Advances in Biomaterials 10. Amsterdam: Elsevier Science Publishers; 1992:147-151.
4. Coll, B. F.; Pellman, M. A.; Souchard, J. P.; Jarquot, P. Metallurgical and tribological modification of titanium and titanium-based alloys for medical devices by plasma assisted techniques. Sudarshan, T. S.; Braza, J. F. eds. Surface Modification Technologies V. Cambridge: The University Press; 1992:77-88.
5. Davidson, J. A.; Mishra, A. K. Surface modification issues for orthopaedic implant bearing surfaces. Sudarshan, T. S.; Braza, J. F. eds. Surface Modification Technologies V. Cambridge: The University Press; 1992:1-14.
6. Wachtel, E.; Villars, P.; Armini, A.; Spector, M. Tribology of alumina and diamond-like coatings for orthopaedic applications. Sudarshan, T. S.; Braza, J. F. eds. Surface Modification Technologies V. Cambridge: The University Press; 1992:125-138.
7. Poggie, R. A.; Mishra, A. K.; Davidson, J. A. Three-body abrasive wear behaviour of orthopaedic implant bearing surfaces from titanium debris. J. Mater. Sci. Mater. Med. 5:387-392; 1994.
8. Streicher, R. M.; Weber, H.; Schoen, R.; Semlitsch, M. F. Wear resistant couplings for longer lasting articulating total joint replacements. Doherty, P. J.; Williams, R. L.; Williams, D. F.; Lee, A. J. C. eds. Biomaterial-Tissue Interfaces, Advances in Biomaterials 10. Amsterdam: Elsevier Science Publishers; 1992:179-186.
9. Geesink, R. G. T.; de Groot, K.; Klein, C. P. A. T. Chemical implant fixation using hydroxl-apatite coatings. Clin. Orthop. Rel. Res. 225:147-170; 1987.
10. Manley, M. T. Calcium phosphate biomaterials: a review of the literature. Geesink, R. G. T.; Manley, M. T. eds. Hydroxylapatite Coatings in Orthopaedic Surgery. New York: Raven Press; 1993:1-23.
11. Kay, J. F. Designing to counteract the effects of initial device instability: materials and engineering. J. Biomed. Mater. Res. 22:1127-1136; 1988.
12. Cook, S. D.; Thomas, K. A.; Kay, J. F.; Jarcho, M. Hydroxyapatite-coated titanium for orthopedic implant applications. Clin. Orthop. Rel. Res. 232:225-243; 1988.
13. Lemons, J. E. Hydroxyapatite coatings. Clin. Orthop. Rel. Res. 235:220-223; 1988.
14. Berndt, C. C.; Haddad, G. N.; Farmer, A. J. D.; Gross, K. A. Thermal spraying for bioceramic applications. Mater. Forum 14:161-173; 1990.
15. Lacefield, W. R. Hydroxylapatite coatings. Hench, L. L.; Wilson, J. eds. An Introduction to Bioceramics. Singapore: World Scientific; 1993:223-228.
16. Serekian, P. Process application of hydroxylapatite coatings. Geesink, R. G. T.; Manley, M. T. eds. Hydroxylapatite Coatings in Orthopaedic Surgery. New York: Raven Press; 1993:81-87.
17. Ducheyne, P.; McGuckin, J. F. Composite bioactive ceramic-metal materials. Yamamuro, T.; Hench, L. L.; Wilson, J. eds. CRC Handbook of Bioactive Ceramics, Vol. II. Boca Raton, FL: CRC Press; 1990:175-186.
18. Yankee, S. J.; Pletka, B. J.; Luckey, H. A.; Johnson, W. A. Processes for fabricating hydroxylapatite coatings for biomedical applications. Bernecki, T. F. ed. Thermal Spray Research and Applications. Materials Park, OH: ASM International; 1991:433-438.
19. Pilliar, R. M.; Filiaggi, M. J. New calcium phosphate coating methods. Ducheyne, P.; Christiansen, D. eds. Bioceramics, Vol. 6. Oxford, UK: Butterworth-Heinemann, Ltd.; 1993:165-171.
20. Wisebey, A.; Gregson, P. J.; Tuke, M. Application of PVD TiN coating to Co-Cr-Mo based surgical implants. Biomaterials 8:477-480; 1987.
21. Rieu, J. Ceramic formation on metallic surfaces (ceramization) for medical applications. Clin. Mater. 12: 227-235; 1993.
22. Wasa, K.; Hayakawa, S. Handbook of Sputter Deposition Technology. Park Ridge, NJ: Noyes Publications; 1992.
23. Filiaggi, M. J.; Coombs, N. A.; Pilliar, R. M. Characterization of the interface in the plasma-sprayed HA coating/Ti-6Al-4V implant system. J. Biomed. Mater. Res. 25:1211-1229; 1991.
24. Whitehead, R. Y.; Lacefield, W. R.; Lucas, L. C.; Lemons, J. E. Structural and bond strength evaluations of plasma sprayed HA coatings. Proc. 4th World Biomater. Congr. 1992:503.
25. Pilliar, R. M.; Deporter, D.; Watson, P. A.; et al. The effect of partial coating with hydroxyapatite on bone remodeling in relation to porous-coated titanium-alloy dental implants in the dog. J. Dent. Res. 70:1338-1345; 1991.
26. Delécrin, J.; Szmuckler-Moncler, S.; Daculsi, G.; Rieu, J.; Duquet, B. Ultrastructural, crystallographic and chemical analysis of different calcium phosphate plasma coatings. Bonfield, W.; Hastings, G. W.; Janner, K. E., Eds. Bioceramics, Vol. 4. London: Butterworth-Heinemann, Ltd.; 1991:311-315.
27. Radin, S. R.; Ducheyne, P. Plasma spraying induced changes of calcium phosphate ceramic characteristics and the effect on in vitro stability. J. Mater. Sci. Mater. Med. 3: 33-42; 1992.
28. Klein, C. P. A. T.; de Blieck-Hogervorst, J. M. A.; Wolke, J. G. C.; de Groot, K. A study of solubility and surface features of different calcium phosphate coatings in vitro and in vivo: a pilot study. Vincenzini, P. ed. Ceramics in Substitutive and Reconstructive Surgery. Amsterdam: Elsevier Science Publishers; 1991:363-374.
29. Dislich, H. Thin films from the sol-gel process. Klein, L. C. ed. Sol-Gel Technology for Thin Films, Fibers, Preforms, Electronics, and Specialty Shapes. Park Ridge, NJ: Noyes Publications; 1988:50-79.
30. Fabes, B. D.; Zelinski, B. J. J.; Uhlmann, D. R. Sol-gel derived ceramic coatings. Wachtman, J. B.; Haber, R. A. eds. Ceramic Films and Coatings. Park Ridge, NJ: Noyes Publications; 1993:224-283.
31. Klein, L. C. Sol-gel coatings. Vossen, J. L.; Kern, W. eds. Thin Film Processes II. Boston: Academic Press; 1991: 501-522.
32. Yi, G.; Sayer, M. Sol-gel processing of complex oxide films. Am. Ceram. Soc. Bull. 70:1173-1179; 1991.
33. Brinker, C. J.; Scherer, G. W. Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing. Boston: Academic Press; 1990.
34. Hench, L. L.; West, J. K. The sol-gel process. Chem. Rev. 90:33-72; 1990.
35. Schmidt, H. Chemistry of material preparation by the sol-gel process. J. Non-Cryst. Solids 100:51-64; 1988.
36. Mackenzie, J. D.; Xu, R.; Yuhuan, X. Ultrastructure processing of thin crystalline films. Hench, L. L.; West, J. K. eds. Chemical Processing of Advanced Materials. New York: Wiley; 1992:365-377.
37. Johnson, D. W. Sol-gel processing of ceramics and glass. Am. Ceram. Soc. Bull. 64:1597-1602; 1985.
38. Dislich, H. Glassy and crystalline systems from gels, chemical basis and technical application. J. Non-Cryst. Solids 63:237-241; 1984.
39. Hench, L. L.; Wilson, J. The chemical processing of silicates for biological applications - a review. Mater. Res. Soc. Symp. Proc. 180:1061-1071; 1990.
40. Periera, M. M.; Clark, A. E.; Hench, L. L. Calcium phosphate formation on sol-gel derived bioactive glass in vitro. J. Biomed. Mater. Res. 28:693-698; 1994.
41. Szmukler-Moncler, S.; Daculsi, G.; Delécrin, J.; Passuti, N.; Deudon, C. Calcium metallic-phosphates: a new coating material? Doherty, P. J.; Williams, R. L.; Williams, D. F.; Lee, A. J. C. eds. Biomaterial-Tissue Interfaces, Advances in Biomaterials 10. Amsterdam: Elsevier Science Publishers; 1992:377-383.
42. Li, P.; Ohtsuki, C.; Kokubo, T.; et al. Apatite formation induced by silica gel in a simulated body fluid. J. Am. Ceram. Soc. 75:2094-2097; 1992.
43. Li, P.; Ohtsuki, C.; Kokubo, T.; Nakanishi, K.; Soga, N.; de Groot, K. The role of hydrated silica, titania, and alumina in inducing apatite on implants. J. Biomed. Mater. Res. 28:7-15; 1994.
44. Li, P.; Ye, X.; Kangasniemi, I.; de Blieck-Hogervorst, J. M. A.; Klein, C. P. A. T.; de Groot, K. In vivo calcium phosphate formation induced by sol-gel-prepared silica. J. Biomed. Mater. Res. 29:325-328; 1995.
45. Kobe Steel Ltd. Sol-gel route yields hydroxyapatite. Adv. Ceram. Rep. 4(2):3-4; 1989.
46. Deptula, A.; Lada, W.; Olczak, T.; Borello, A.; Alvani, C.; di Bartolomeo, A. Preparation of spherical powders of hydroxyapatite by sol-gel process. J. Non-Crystal. Solids 147/ 148:537-541; 1992.
47. 2O and acoustic waves. J. Mater. Sci. 28: 5297-5300; 1993.
48. Li, R.; Clark, A. E.; Hench, L. L. Effects of structure and surface area of bioactive powders by sol-gel process. Hench, L. L.; West, J. K. eds. Chemical Processing of Advanced Materials. New York: Wiley; 1992:627-633.
49. Li, R.; Clark, A. E.; Hench, L. L. An investigation of bioactive glass powders by sol-gel processing. J. Appl. Biomater. 2:231-239; 1991.
50. Davies, J. E.; Shapiro, G.; Lowenberg, B. F. Osteoclastic resorption of calcium phosphate ceramic thin films. Cells Mater. 3:245-256; 1993.
51. Qui, Q.; Vincent, P.; Lowenberg, B.; Sayer, M.; Davies, J. E. Bone growth on sol-gel calcium phosphate thin films in vitro. Cells Mater. 3:351-360; 1993.
52. Brendel, T.; Engel, A.; Rüssel, C. Hydroxyapatite coatings by a polymeric route. J. Mater. Sci. Mater. Med. 3:175-179; 1992.
53. Shirkhanzadeh, M. Electrochemical preparation of protective oxide coatings on titanium surgical alloys. J. Mater. Sci. Mater. Med. 3:322-325; 1992.
54. Li, P.; de Groot, K. Calcium phosphate formation within sol-gel prepared titania in vitro and in vivo. J. Biomed. Mater. Res. 27:1495-1500; 1993.
55. Li, P.; Kangasniemi, I.; de Groot, K. In vitro and in vivo evaluation of bioactivity of gel titania. Ducheyne, P.; Christiansen, D. eds. Bioceramics, Vol. 6. Oxford, UK: Butterworth-Heinemann Ltd.; 1993:41-45.
56. Li, P.; Kangasniemi, I.; de Groot, K.; Kokubo, T. Bonelike hydroxyapatite induction by a gel-derived titania on a titanium substrate. J. Am. Ceram. Soc. 77:1307-1312; 1994.
57. Nordström, E.G.; Södergard, B. E.; Kukkonen, L. Thin sol-gel-derived silica-coatings on cp-titania and bioactivity thereupon. Biomed. Mater. Eng. 4:187-192; 1994.
58. Breme, J.; Zhou, Y.; Groh, L. Development of a titanium alloy suitable for an optimized coating with hydroxyapatite. Biomaterials 16:239-244; 1995.
59. Chai, C.; Ben-Nissan, B.; Pyke, S.; Evans, L. Sol-gel derived hydroxylapatite coatings for biomedical applications. Mater. Manufact. Processes 10:205-216; 1995.
60. Anast, N.; Bell, J. M.; Bell, T. J.; Ben-Nissan, B. Precision ultramicrohardness measurements of sol-gel-derived zirconia thin films. J. Mater. Sci. Lett. 11:1483-1485; 1992.
61. 2 sol-gel coating on stainless steel. Mater. Res. Soc. Symp. Proc. 271:471-476; 1992.
62. Atik, M.; Zarzycki, J.; R'Kha, C. Protection of ferretic stainless steel against oxidation by zirconia coatings. J. Mater. Sci. Lett. 13:266-269; 1994.
63. Atta, A. K.; Biswas, P. K.; Ganguli, D. Effects of angle of incidence and physical thickness on optical properties of a sol-gel derived three-layer antireflection film. J. Mater. Sci. Lett. 12:760-762; 1993.
64. Bel Hadj, F.; Sempere, R.; Phalippou, J. Study of thin solid films elaborated by "dip coating." J. Non-Crystal. Solids 82:417-425; 1986.
65. Biswas, P. K.; Kundu, D.; Ganguli, D. A sol-gel derived antireflective coating on optical glass for near-infrared applications. J. Mater. Sci. Lett. 8:1436-1437; 1989.
66. 2 coatings on stainless steel by the sol-gel process. Vilminot, S.; Nass, R.; Schmidt, H. eds. Eurogel '91. Amsterdam: Elsevier Science Publishers B. V.; 1992:327-333.
67. 2 coatings from metal-organic solutions. J. Mater. Sci. Lett. 3:503-504; 1984.
68. Gertsen-Briand, H. F. Characterization of Sol-Gel Yttria Stabilized Zirconia Thin Films Deposited on Metallic Substrates. Queen's University, Kingston, ON; M.Sc. Thesis; 1994.
69. Innocenzi, P. C.; Guglielmi, M.; Gobbin, M.; Colombo, P. Coating of metals by the sol-gel dip-coating method. J. Eur. Ceram. Soc. 10:431-436; 1992.
70. Izumi, K.; Murakami, M.; Deguchi, T.; Monta, A.; Tohge, N.; Minami, T. Zirconia coating on stainless steel sheets from organozirconium compounds. J. Am. Ceram. Soc. 72:1465-1468; 1989.
71. Jung, T. H.; Subramanian, R. V. Alkali resistance enhancement of basalt fibers by hydrated zirconia films formed by the sol-gel process. J. Mater. Res. 9:1006-1013; 1994.
72. Kueper, T. W.; Visco, S. J.; DeJonghe, L. C. Thin film ceramic electrolytes deposited on porous and non-porous substrates by sol-gel techniques. Solid State Ionics 52:251-259; 1992.
73. 2 coatings. Thin Solid Films 163:273-278; 1988.
74. Levine, T. E.; Keddie, J. L.; Revesz, P.; Mayer, J. W.; Giannelis, E. P. Ion-beam-induced densification of zirconia sol-gel thin films. J. Am. Ceram. Soc. 76:1369-1372; 1993.
75. Pascual, R.; Sayer, M.; Yi, G.; Baker, C. Phase transformation kinetics in thin film zirconia. J. Can. Ceram. Soc. 60(2):43-46; 1991.
76. Pascual, R.; Sayer, M.; Vasant Kumar, C. V. R.; Zou, L. Rapid thermal processing of zirconia thin films produced by the sol-gel method. J. Appl. Phys. 70:2348-2352; 1991.
77. Shane, M.; Mecartney, M. L. Sol-gel synthesis of zirconia barrier coatings. J. Mater. Sci. 25:1537-1544; 1990.
78. Shirkhanzadeh, M. Electrochemical fabrication of alkoxy-derived nanocrystalline zirconia coatings at room temperature. Mater. Lett. 16:189-193; 1993.
79. 2 gels prepared by controlled chemical modification method of alkoxide. Mater. Res. Soc. Symp. Proc. 271:83-88; 1992.
80. Takahashi, Y.; Niwa, K.; Kobayashi, K.; Matsuki, M. Dip coating of zirconia and mixed zirconia films. Yogyo-Kyokai-Shi [J. Ceram. Soc. Jpn.] 95:942-948; 1987.
81. 2 films from zirconium alkoxide. Chem. Express 2:141-144; 1987.
82. Yamada, K.; Chow, T. Y.; Horihata, T.; Nagata, M. A low temperature synthesis of zirconium oxide coating using chelating agents. J. Non-Crystal. Solids 100(1-3):316-320; 1988.
83. 2 by the sol-gel process. J. Non-Crystal. Solids 112:442-448; 1989.
84. Anast, M.; Ben-Nissan, B.; Bartlett, J. R.; et al. Preparation and characterisation of sol-gel derived zirconia coatings. Badwal, S. P. S.; Bannister, M. J.; Hannink, R. H. J. eds. Science and Technology of Zirconia V. Lancaster, PA: Technomic Publishing Co., Inc.; 1993:259-266.
85. Bell, J. M.; Cheary, R. W.; Rice, M.; Ben-Nissan, B.; Bocking, J. L.; Johnstone, G. R. Crystal structures of sol-gel deposited zirconia thin films. Bannister, M. J. ed. Ceramics: Adding the Value, Vol. 2 [Austceram '92]; Melbourne, Australia: CSIRO Publications; 1992:765-770.
86. Jämting, A.; Ben-Nissan, B.; Ashcroft, I.; Swain, M. V.; Bell, J. M. Studies of ultra micro indented multilayered sol-gel zirconia films. Mater. Res. Soc. Symp. Proc. 356:711-716; 1995.
87. Hirashima, H.; Obu, Y.; Nagai, T.; Imai, H. Preparation of sol-gel coatings by electrophoretic deposition. Mater. Res. Soc. Symp. Proc. 346:95-100; 1994.
88. 3 films prepared on austenitic stainless steel substrates. J. Am. Ceram. Soc. 78:347-355; 1995.
89. Christel, P.; Meunier, A.; Heller, M.; Torre, J. P.; Peille, C. N. Mechanical properties and short-term in vivo evaluation of yttrium-oxide-partially-stabilized zirconia. J. Biomed. Mater. Res. 23:45-61; 1989.
90. Garvie, R. C.; Urbani, C.; Kennedy, D. R.; McNeuer, J. C. Biocompatibility of magnesia-partially stabilized zirconia (Mg-PSZ) ceramics. J. Mater. Sci. 19:3224-3228; 1984.
91. Kumar, P.; Shimizu, K.; Oka, M.; et al. Biological reaction of zirconia ceramics. Oonishi, H.; Aoki, H.; Sawai, K. eds. Bioceramics. Tokyo: Ishiyaka EuroAmerica, Inc. 1989: 341-346.
92. Maccauro, G.; Specchia, N.; Arena, M.; Piconi, C.; Greco, F. Bone metabolic response to sintered calcia-stabilized zirconia: preliminary results. Proc. 4th World Biomater. Congr. 1992:543.
93. Nagarajan, V. S.; Rao, K. J. Characterization of sol-gel derived zirconia with additions of yttria and ceria. Origin of high fracture toughness in ceria-stabilized samples. Phil. Mag. A 65:771-781; 1992.
94. Filiaggi, M. J.; Pilliar, R. M.; Abdulla, D. Evaluating sol-gel ceramic thin films for metal implant applications. II. Adhesion and fatigue properties of zirconia films on Ti-6A1-4V. J. Biomed. Mater. Res. ( Appl. Biomater.) 33:239-256; 1996.
95. Nabavi, M.; Doeuff, S.; Sanchez, C.; Livage, J. Chemical modification of metal alkoxides by solvents: a way to control sol-gel chemistry. J. Non-Crystal. Solids 121:31-34; 1990.
96. Papet, P.; Le Bars, N.; Baumard, J. F.; Lecomte, A.; Dauger, A. Transparent monolithic zirconia gels: effects of acetylacetone content on gelation. M. Mater. Sci. 24:3850-3854; 1989.
97. Sanchez, C.; Livage, J.; Henry, M.; Babonneau, F. Chemical modification of alkoxide precursors. J. Non-Crystal. Solids 100:65-76; 1988.
98. Schmidt, H.; Seiferling, B.; Philipp, G.; Deichmann, K. Development of organic-inorganic hard coatings by the sol-gel process. Mackenzie, J. D.; Ulrich, D. R. eds. Ultrastructure Processing of Advanced Ceramics. New York: Wiley; 1988:651-660.
99. Melpolder, S. M.; Coltrain, B. K. Optimization of sol-gel properties. Mater. Res. Soc. Symp. Proc. 121:811-816; 1988.
100. 3 thin films. Hiremath, B. V. ed. Ceramic Thin and Thick Films. Westerville, OH: American Ceramic Society, Inc.; 1990:363-374.
101. Schmidt, H.; Rinn, G.; Nab, R.; Sporn, D. Film preparation by inorganic-organic sol-gel synthesis. Mater. Res. Soc. Symp. Proc. 121:743-754; 1988.
102. Thompson, I.; Rawlings, R. D. Mechanical behavior of zirconia and zirconia-toughened alumina in a simulated body environment. Biomaterials 11:505-508; 1990.
103. Green, D. J.; Hannink, R. H. J.; Swain, M. V. Transformation Toughening of Ceramics. Boca Raton, FL: CRC Press, Inc.; 1989:1-55.
104. Miller, K. T.; Lange, F. F.; Marshall, D. B. The instability of polycrystalline thin films: experiment and theory. J. Mater. Res. 5:151-160; 1990.
105. Bell, J. M.; Ben-Nissan, B.; Anast, M.; et al. Sol-gel deposition of electronic ceramic films. Mater. Res. Soc. Symp. Proc. 180:453-456; 1990.
106. 2 coatings obtained by the dipping method. J. Mater. Sci. 27:5052-5056; 1992.
107. Strawbridge, I.; James, P. F. The factors affecting the thickness of sol-gel derived silica coatings prepared by dipping. J. Non-Crystal. Solids 86:381-393; 1986.
108. Garvie, R. C.; Hannink, R. H.; Pascoe, R. H. Ceramic steel? Nature 258:703-704; 1975.
109. Mazdiyasni, K. S.; Lynch, C. T.; Smith, J. S. J. Metastable transitions of zirconium oxide obtained from decomposition of alkoxides. Am. Ceram. Soc. 49:286-287; 1966.
110. Yoldas, B. E. Effect of variations in polymerized oxides on sintering and crystalline transformations. J. Am. Ceram. Soc. 65:387-393; 1982.
111. Pierre, A. C.; Uhlmann, D. R. Comparison between the sol-gel processes of zirconia and those of alumina. Mater. Res. Soc. Symp. Proc. 121:207-212; 1988.
112. Garvie, R. C. The occurrence of metastable tetragonal zirconia as a crystallite size effect. J. Phys. Chem. 69:1238-1243; 1965.
113. Debsikdar, J. C. Thermal evolution of alkoxy-derived "glass-like" transparent zirconia gel. J. Non-Crystal. Solids 87:343-349; 1986.
114. Srinivasan, R.; de Angelis, R.; Davis, B. H. Factors influencing the stability of the tetragonal form of zirconia. J. Mater. Res. 1:583-588; 1986.
115. Srinivasan, R.; Davis, B. H.; Rice, L. A.; de Angelis, R. J. Electron microdiffraction of zirconia particles. J. Mater. Sci. 27:661-670; 1992.
116. 2 studied by Fourier transform infrared spectroscopy. Mater. Res. Soc. Symp. Proc. 346:715-720, 1994.