The DOI matches its Crossref record.
Surface Energies and Thermodynamic Phase Stability in Nanocrystalline Aluminas
Abstract
Corundum, α-Al 2 O 3 , is the thermodynamically stable phase of coarsely crystalline aluminum oxide, but syntheses of nanocrystalline Al 2 O 3 usually result in γ-Al 2 O 3 . Adsorption microcalorimetry, thermogravimetric analyses, and Brunauer-Emmett-Teller adsorption experiments, coupled with recently reported high-temperature solution calorimetry data, prove that γ-Al 2 O 3 has a lower surface energy than α-Al 2 O 3 and becomes energetically stable at surface areas greater than 125 square meters per gram and thermodynamically stable at even smaller surface areas (for example, 75 square meters per gram at 800 kelvin). The results are in agreement with recent molecular dynamics simulations and provide conclusive experimental evidence that differences in surface energy can favor the formation of a particular polymorph.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cited by
Penn, R. L., & Banfield, J. F. (1999) · Geochimica et Cosmochimica Acta · doi:10.1016/s0016-7037(99)00037-x · Cited by 1,031
Effect of polymorphic phase transformations in Al2O3 film on oxidation kinetics of aluminum powders
Trunov, M. A., Schoenitz, M., Zhu, X., & Dreizin, E. L. (2005) · Combustion and Flame · doi:10.1016/j.combustflame.2004.10.010 · Cited by 586
Wang, Q., Zheng, X., Deng, Y., Zhao, J., Chen, Z., & Huang, J. (2017) · Joule · doi:10.1016/j.joule.2017.07.017 · Cited by 544
Transformation and crystallization energetics of synthetic and biogenic amorphous calcium carbonate
Radha, A. V., Forbes, T. Z., Killian, C. E., Gilbert, P. U. P. A., & Navrotsky, A. (2010) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1009959107 · Cited by 509
Self-citationSize-dependent structural transformations of hematite nanoparticles. 1. Phase transition
Chernyshova, I. V., Hochella Jr, M. F., & Madden, A. S. (2007) · Physical Chemistry Chemical Physics · doi:10.1039/b618790k · Cited by 463
Metadata
- Authors
- McHale, J. M., Auroux, A., Perrotta, A. J., & Navrotsky, A.
- Venue
- Science
- Published
- 1997-08-08
- Volume
- 277
- Issue
- 5327
- Pages
- 788-791
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2038468988
- Cited by
- 946
- References
- 0
- FWCI
- 19.04
- Type
- journal article
- Language
- en
- Open access
- closed
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Surface Energies and Thermodynamic Phase Stability in Nanocrystalline Aluminas. https://app.cochat.ai/papers/10.1126/science.277.5327.788
- The paper
- McHale, J. M., Auroux, A., Perrotta, A. J., & Navrotsky, A. (1997). Surface Energies and Thermodynamic Phase Stability in Nanocrystalline Aluminas. Science. https://doi.org/10.1126/science.277.5327.788
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
