DOI: 10.1111/j.1151-2916.1989.tb05965.x. Effects of Chemical Inhomogeneities on Grain Growth and Microstructure in Al<sub>2</sub>O<sub>3</sub>

Effects of Chemical Inhomogeneities on Grain Growth and Microstructure in Al2O3

10.1111/j.1151-2916.1989.tb05965.x

Crossref journal-article

Wiley

Journal of the American Ceramic Society (311)

Abstract

Effects of chemical inhomogeneities and single‐crystal seeds on normal and discontinuous grain growth were investigated in both undoped and MgO‐doped Al2O3. The chemical impurities in the samples were exsolved at a lower temperature than the sintering temperature and measured by SEM/EDS to determine the correlation between the distribution of impurities and the microstructure in Al2O3. A feature of this study was the use of clean‐room processing and firing procedures to maintain sample composition at the levels initially present in the starting powders. As the local concentrations of chemical impurities (i.e., Si, Ca) increased, the grain boundary–grain boundary dihedral angle distribution widened, with many angles at 180°, the grain‐size distribution widened, and pore–boundary separation was enhanced. Discontinuous grain growth was observed in regions of undoped Al2O3 containing the largest Ca and Si concentrations. It is suggested that doping with MgO solute reduces the effects of impurities on grain growth by increasing the bulk solubility and decreasing interfacial segregation of impurities, especially Si, and by narrowing the distribution of grain boundary–grain boundary dihedral angles.

Bibliography

Handwerker, C. A., Morris, P. A., & Coble, R. L. (1989). Effects of Chemical Inhomogeneities on Grain Growth and Microstructure in Al2O3. Journal of the American Ceramic Society, 72(1), 130â136. Portico.

Authors 3

Carol A. Handwerker (first)
Patricia A. Morris (additional)
Robert L. Coble (additional)

References 38 Referenced 175

R. L.Coble “Transparent Alumina and Method of Preparation.” U.S. Pat. No. 3 026 210 March 20 1962.
10.1063/1.1736108
10.1111/j.1151-2916.1965.tb14660.x
R. E.Mistler “Grain Boundary Diffusion Widths and Migration Kinetics in Al2O3 NaCl and Ag”;Sc.D. Thesis.Massachusetts Institute of Technology Cambridge MA 1967.
{'key': 'e_1_2_1_6_2', 'first-page': '443', 'article-title': 'Influence of MgO on the Evolution of the Microstructure of Alumina', 'volume': '10', 'author': 'Peelen J. G. J.', 'year': '1975', 'journal-title': 'Mater. Sci. Res.'} / Mater. Sci. Res. / Influence of MgO on the Evolution of the Microstructure of Alumina by Peelen J. G. J. (1975)
10.1111/j.1151-2916.1978.tb09250.x
10.1111/j.1151-2916.1979.tb12731.x
{'key': 'e_1_2_1_9_2', 'first-page': '417', 'article-title': 'The Effect of MgO on the Mobility of Grain Boundaries and Pores in Aluminum Oxides', 'volume': '13', 'author': 'Burke J. E.', 'year': '1980', 'journal-title': 'Mater. Sci. Res.'} / Mater. Sci. Res. / The Effect of MgO on the Mobility of Grain Boundaries and Pores in Aluminum Oxides by Burke J. E. (1980)
10.1111/j.1151-2916.1983.tb10065.x
10.1111/j.1151-2916.1985.tb15259.x
{'key': 'e_1_2_1_12_2', 'first-page': '679', 'volume-title': 'Advances in Ceramics', 'author': 'Harmer M.', 'year': '1984'} / Advances in Ceramics by Harmer M. (1984)
10.1016/0022-0248(86)90235-6
10.1007/978-1-4613-3273-2
P. A.Morris “High‐Purity Al2O3: Processing and Grain Boundary Structures”;Ph.D. Thesis.Massachusetts Institute of Technology Cambridge MA 1986.
{'key': 'e_1_2_1_16_2', 'first-page': '281', 'volume-title': 'Defect Properties and Processing of High‐Technology Nonmetallic Materials', 'author': 'Morris P. A.', 'year': '1986'} / Defect Properties and Processing of High‐Technology Nonmetallic Materials by Morris P. A. (1986)
C. A.Handwerker Sintering and Grain Growth of MgO;Sc.D. Thesis.Massachusetts Institute of Technology Cambridge MA 1983.
{'key': 'e_1_2_1_18_2', 'first-page': '79', 'volume-title': 'Defect Properties and Processing of High‐Technology Nonmetallic Materials', 'author': 'Morris P. A.', 'year': '1986'} / Defect Properties and Processing of High‐Technology Nonmetallic Materials by Morris P. A. (1986)
{'key': 'e_1_2_1_19_2', 'first-page': '276', 'volume-title': 'Ceramic Microstructures 76', 'author': 'Yan M.', 'year': '1976'} / Ceramic Microstructures 76 by Yan M. (1976)
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10.1111/j.1151-2916.1987.tb05005.x
{'key': 'e_1_2_1_24_2', 'first-page': '21', 'volume-title': 'Science of Ceramics', 'author': 'Kooy C.', 'year': '1962'} / Science of Ceramics by Kooy C. (1962)
{'key': 'e_1_2_1_25_2', 'first-page': '15', 'article-title': 'Grains, Phases, and Interfaces: An Interpretation of Microstructure', 'volume': '175', 'author': 'Smith C. S.', 'year': '1948', 'journal-title': 'Trans. AIME'} / Trans. AIME / Grains, Phases, and Interfaces: An Interpretation of Microstructure by Smith C. S. (1948)
{'key': 'e_1_2_1_26_2', 'first-page': '357', 'volume-title': 'Advances in Ceramics', 'author': 'Phillips D. S.', 'year': '1984'} / Advances in Ceramics by Phillips D. S. (1984)
{'key': 'e_1_2_1_27_2', 'first-page': '141', 'volume-title': 'Recrystallization, Grain Growth, and Texture', 'author': 'Nielsen John P.', 'year': '1966'} / Recrystallization, Grain Growth, and Texture by Nielsen John P. (1966)
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{'key': 'e_1_2_1_29_2', 'first-page': '139', 'volume-title': 'Grain Boundary Structure and Properties', 'author': 'Pumphrey P. H.', 'year': '1976'} / Grain Boundary Structure and Properties by Pumphrey P. H. (1976)
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{'issue': '6', 'key': 'e_1_2_1_33_2', 'first-page': '589', 'article-title': 'Some Effects of the Source of Iron Oxide on Its Sintering Behavior', 'volume': '55', 'author': 'Gallagher P. K.', 'year': '1976', 'journal-title': 'Am. Ceram. Soc. Bull.'} / Am. Ceram. Soc. Bull. / Some Effects of the Source of Iron Oxide on Its Sintering Behavior by Gallagher P. K. (1976)
R. D.Bagley “Effects of Impurities on the Sintering of Alumina”;Ph.D. Thesis.University of Utah Salt Lake City UT 1964.
10.1111/j.1151-2916.1966.tb13316.x-i1
K. A.Berry;M. S. Thesis.Lehigh University Bethlehem PA 1986.
{'key': 'e_1_2_1_37_2', 'first-page': '321', 'article-title': 'Influence of MgO on Liquid Phase Sintering and Solid Phase Sintering of Al2O3', 'volume': '10', 'author': 'Sprissler M.', 'year': '1980', 'journal-title': 'Sci. Ceram.'} / Sci. Ceram. / Influence of MgO on Liquid Phase Sintering and Solid Phase Sintering of Al2O3 by Sprissler M. (1980)
S. J.Bennison; personal communication.
T.Shaw; personal communication.

Dates

Type	When
Created	20 years, 5 months ago (March 8, 2005, 1:33 p.m.)
Deposited	1 year, 9 months ago (Nov. 22, 2023, 10:14 p.m.)
Indexed	6 days, 11 hours ago (Aug. 21, 2025, 1:13 p.m.)
Issued	36 years, 7 months ago (Jan. 1, 1989)
Published	36 years, 7 months ago (Jan. 1, 1989)
Published Online	20 years, 5 months ago (March 8, 2005)
Published Print	36 years, 7 months ago (Jan. 1, 1989)

Funders 0

None

BibTeX

@article{Handwerker_1989, title={Effects of Chemical Inhomogeneities on Grain Growth and Microstructure in Al2O3}, volume={72}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.1989.tb05965.x}, DOI={10.1111/j.1151-2916.1989.tb05965.x}, number={1}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Handwerker, Carol A. and Morris, Patricia A. and Coble, Robert L.}, year={1989}, month=jan, pages={130–136} }

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