DOI: 10.1111/j.1151-2916.1995.tb08452.x. Grain Size Dependence of Hardness in Dense Submicrometer Alumina

Grain Size Dependence of Hardness in Dense Submicrometer Alumina

10.1111/j.1151-2916.1995.tb08452.x

Crossref journal-article

Wiley

Journal of the American Ceramic Society (311)

Abstract

Pressureless sintered alumina compacts with a submicrometer microstructure exhibit a hardness that approaches or even exceeds the level of advanced hotpressed composites of Al2O3+ 35 vol% TiC, whereas the strength of both ceramics is approximately the same. The combination of reduced dislocation mobility (due to the small grain size), high density, and density homogeneity are the prerequisites for the surprisingly high hardness. Quasiconventional powder processing is used to produce these outstanding alumina bodies.

Bibliography

Krell, A., & Blank, P. (1995). Grain Size Dependence of Hardness in Dense Submicrometer Alumina. Journal of the American Ceramic Society, 78(4), 1118â1120. Portico.

Authors 2

Andreas Krell (first)
Paul Blank (additional)

References 18 Referenced 200

10.1111/j.1151-2916.1971.tb12277.x
10.1111/j.1151-2916.1976.tb09452.x
10.1111/j.1151-2916.1973.tb12485.x
{'key': 'e_1_2_1_5_2', 'first-page': '95', 'article-title': 'Observations by Transmission Electron Microscopy on the Subsurface Damage Produced in Aluminium Oxide by Mechanical Polishing and Grinding', 'volume': '20', 'author': 'Hockey B. J.', 'year': '1972', 'journal-title': 'Proc. Br. Ceram. Soc.'} / Proc. Br. Ceram. Soc. / Observations by Transmission Electron Microscopy on the Subsurface Damage Produced in Aluminium Oxide by Mechanical Polishing and Grinding by Hockey B. J. (1972)
10.1007/BF00540885
10.1002/pssa.2210390135
10.1111/j.1151-2916.1974.tb10827.x
10.1016/0001-6160(68)90014-X
10.1111/j.1151-2916.1979.tb19059.x
10.1111/j.1151-2916.1976.tb10991.x
{'issue': '12', 'key': 'e_1_2_1_12_2', 'first-page': '1667', 'article-title': 'Vickers Hardness and Microfracture of Single and Polycrystalline Al2O3', 'volume': '15', 'author': 'Krell A.', 'year': '1980', 'journal-title': 'Krist. Tech. Cryst. Sci. Technol.'} / Krist. Tech. Cryst. Sci. Technol. / Vickers Hardness and Microfracture of Single and Polycrystalline Al2O3 by Krell A. (1980)
10.1007/BF00551823
R.Bauer “Process for Producing Alumina Bodies ”Eur. Pat. Appl. EP‐168606 published January 22 1986.
T.Hatanaka T.Hiraiwa M.Matsukura N.Aoki andS.Imai “Alumina Ceramic Abrasive Material and Production Thereof ”Eur. Pat. Appl. EP‐408771 published January 23 1991.
A.Krell “Load Dependence of Hardness in Sintered Submicron Al2O3and ZrO2 ” submitted toJ. Am. Ceram. Soc..
{'issue': '1', 'key': 'e_1_2_1_17_2', 'first-page': '29', 'article-title': 'Vickers Micro‐hardness of Solid Solution in the System Cr2O3‐Al2O3', 'volume': '54', 'author': 'Riedel G.', 'year': '1980', 'journal-title': 'Silic. Ind.'} / Silic. Ind. / Vickers Micro‐hardness of Solid Solution in the System Cr2O3‐Al2O3 by Riedel G. (1980)
10.1111/j.1151-2916.1992.tb05438.x
10.1016/0921-5093(93)90524-I

Dates

Type	When
Created	19 years, 11 months ago (Sept. 28, 2005, 9:40 a.m.)
Deposited	1 year, 9 months ago (Nov. 22, 2023, 4:42 p.m.)
Indexed	1 week, 4 days ago (Aug. 19, 2025, 6:01 a.m.)
Issued	30 years, 4 months ago (April 1, 1995)
Published	30 years, 4 months ago (April 1, 1995)
Published Online	19 years, 11 months ago (Sept. 28, 2005)
Published Print	30 years, 4 months ago (April 1, 1995)

Funders 0

None

BibTeX

@article{Krell_1995, title={Grain Size Dependence of Hardness in Dense Submicrometer Alumina}, volume={78}, ISSN={1551-2916}, url={http://dx.doi.org/10.1111/j.1151-2916.1995.tb08452.x}, DOI={10.1111/j.1151-2916.1995.tb08452.x}, number={4}, journal={Journal of the American Ceramic Society}, publisher={Wiley}, author={Krell, Andreas and Blank, Paul}, year={1995}, month=apr, pages={1118–1120} }

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